<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  11.4.0.1 -->
<!--Based on XBRL 2.1-->
<!--Created on: 8/11/2026 9:10:13 PM-->
<!--Modified on: 8/11/2026 9:10:13 PM-->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#StatementConsolidatedStatementsOfAssetsAndLiabilities" roleURI="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfAssetsAndLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#StatementConsolidatedStatementsOfOperations" roleURI="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#StatementConsolidatedStatementsOfChangesInNetAssets" roleURI="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfChangesInNetAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#StatementConsolidatedStatementsOfCashFlows" roleURI="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#DisclosureFairValueOfFinancialInstrumentsFairValueHierarchyDetails" roleURI="http://brightwoodlp.com/role/DisclosureFairValueOfFinancialInstrumentsFairValueHierarchyDetails" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#DisclosureIncomeTaxesTaxCharacterOfDistributionsDetails" roleURI="http://brightwoodlp.com/role/DisclosureIncomeTaxesTaxCharacterOfDistributionsDetails" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#DisclosureIncomeTaxesComponentsOfAccumulatedEarningsLossesOnTaxBasisDetails" roleURI="http://brightwoodlp.com/role/DisclosureIncomeTaxesComponentsOfAccumulatedEarningsLossesOnTaxBasisDetails" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#DisclosureIncomeTaxesAggregateUnrealizedAppreciationAndDepreciationOnInvestmentsBasedOnCostForUsFederalIncomeTaxPurposesDetails" roleURI="http://brightwoodlp.com/role/DisclosureIncomeTaxesAggregateUnrealizedAppreciationAndDepreciationOnInvestmentsBasedOnCostForUsFederalIncomeTaxPurposesDetails" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="tmb-20260630.xsd#DisclosureIncomeTaxesReconciliationOfNetIncreaseInNetAssetsResultingFromOperationsToTaxableIncomeDetails" roleURI="http://brightwoodlp.com/role/DisclosureIncomeTaxesReconciliationOfNetIncreaseInNetAssetsResultingFromOperationsToTaxableIncomeDetails" xmlns="http://www.xbrl.org/2003/linkbase" />
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item" />
  <calculationLink xlink:role="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfAssetsAndLiabilities" xlink:type="extended" xlink:title="995200100 - Statement - CONSOLIDATED STATEMENTS OF ASSETS AND LIABILITIES" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_639220794124661094" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_639220794124661094" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestReceivable" xlink:label="us-gaap_InterestReceivable_639220794124661094" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InterestReceivable_639220794124661094" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue" xlink:label="us-gaap_InvestmentOwnedAtFairValue_639220794124661094" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InvestmentOwnedAtFairValue_639220794124661094" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="us-gaap_DeferredFinanceCostsNet_639220794124661094" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_DeferredFinanceCostsNet_639220794124661094" order="4" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities_639220794124667956" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_Liabilities_639220794124667956" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit" xlink:label="us-gaap_LineOfCredit_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_LineOfCredit_639220794124668944" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_InterestPayableCurrentAndNoncurrent_639220794124668944" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilities" xlink:label="us-gaap_OtherLiabilities_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_OtherLiabilities_639220794124668944" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementFeePayable" xlink:label="us-gaap_ManagementFeePayable_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_ManagementFeePayable_639220794124668944" order="4" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DistributionPayable" xlink:label="us-gaap_DistributionPayable_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_DistributionPayable_639220794124668944" order="5" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_DirectorsFeesPayable" xlink:label="none_DirectorsFeesPayable_639220794124668944" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="none_DirectorsFeesPayable_639220794124668944" order="6" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_639220794124674570" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_Liabilities_639220794124667956" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_639220794124674570" order="7" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity_639220794124675464" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_StockholdersEquity_639220794124675464" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue_639220794124676336" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity_639220794124675464" xlink:to="us-gaap_CommonStockValue_639220794124676336" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital_639220794124677875" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity_639220794124675464" xlink:to="us-gaap_AdditionalPaidInCapital_639220794124677875" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_639220794124679092" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity_639220794124675464" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_639220794124679092" order="3" use="optional" weight="1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfOperations" xlink:type="extended" xlink:title="995200200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss_1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesGainLoss_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss_1" xlink:to="us-gaap_DebtAndEquitySecuritiesGainLoss_639220794124681314" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_DebtAndEquitySecuritiesGainLoss_639220794124681314" xlink:to="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_639220794124681314" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_DebtAndEquitySecuritiesGainLoss_639220794124681314" xlink:to="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124681314" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss_1" xlink:to="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124681314" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit" xlink:label="us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124681314" xlink:to="us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_639220794124681314" order="1" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentIncome" xlink:label="us-gaap_NetInvestmentIncome_639220794124681314" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124681314" xlink:to="us-gaap_NetInvestmentIncome_639220794124681314" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement" xlink:label="us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_639220794124687480" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetInvestmentIncome_639220794124681314" xlink:to="us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_639220794124687480" order="1" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInvestmentExpense" xlink:label="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_639220794124687480" xlink:to="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense_639220794124688634" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_InterestExpense_639220794124688634" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementFeeExpense" xlink:label="us-gaap_ManagementFeeExpense_639220794124688634" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_ManagementFeeExpense_639220794124688634" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentCompanyAmortizationOfFinancingCosts" xlink:label="none_InvestmentCompanyAmortizationOfFinancingCosts_639220794124688634" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="none_InvestmentCompanyAmortizationOfFinancingCosts_639220794124688634" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees_639220794124688634" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_ProfessionalFees_639220794124688634" order="4" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_OverheadExpenses" xlink:label="none_OverheadExpenses_639220794124688634" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="none_OverheadExpenses_639220794124688634" order="5" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherGeneralAndAdministrativeExpense" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_639220794124694083" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_OtherGeneralAndAdministrativeExpense_639220794124694083" order="6" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdministrativeFeesExpense" xlink:label="us-gaap_AdministrativeFeesExpense_639220794124694599" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_AdministrativeFeesExpense_639220794124694599" order="7" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestExpenseDirectorsFees" xlink:label="us-gaap_NoninterestExpenseDirectorsFees_639220794124694599" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_NoninterestExpenseDirectorsFees_639220794124694599" order="8" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustodyFees" xlink:label="us-gaap_CustodyFees_639220794124694599" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeInvestmentExpense_639220794124688177" xlink:to="us-gaap_CustodyFees_639220794124694599" order="9" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossInvestmentIncomeOperating" xlink:label="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetInvestmentIncome_639220794124681314" xlink:to="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperating" xlink:label="us-gaap_InterestIncomeOperating_639220794124694599" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" xlink:to="us-gaap_InterestIncomeOperating_639220794124694599" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInKind" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_639220794124700052" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" xlink:to="us-gaap_InterestIncomeOperatingPaidInKind_639220794124700052" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome_639220794124700521" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" xlink:to="us-gaap_OtherIncome_639220794124700521" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendIncomeOperating" xlink:label="us-gaap_DividendIncomeOperating_639220794124700521" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_GrossInvestmentIncomeOperating_639220794124694599" xlink:to="us-gaap_DividendIncomeOperating_639220794124700521" order="4" use="optional" weight="1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfChangesInNetAssets" xlink:type="extended" xlink:title="995200300 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss_639220794124700521" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="us-gaap_NetIncomeLoss_639220794124700521" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax" xlink:label="us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_639220794124705978" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss_639220794124700521" xlink:to="us-gaap_UnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax_639220794124705978" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax" xlink:label="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss_639220794124700521" xlink:to="us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_639220794124706550" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss_639220794124700521" xlink:to="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124706550" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyIncreaseDecreaseFromShareTransaction" xlink:label="us-gaap_InvestmentCompanyIncreaseDecreaseFromShareTransaction_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="us-gaap_InvestmentCompanyIncreaseDecreaseFromShareTransaction_639220794124706550" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyIncreaseDecreaseFromShareTransaction_639220794124706550" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_639220794124706550" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyIncreaseDecreaseFromShareTransaction_639220794124706550" xlink:to="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_639220794124706550" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_NetIncreaseDecreaseInNetAssetsFromShareholderDistribution" xlink:label="none_NetIncreaseDecreaseInNetAssetsFromShareholderDistribution_639220794124706550" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="none_NetIncreaseDecreaseInNetAssetsFromShareholderDistribution_639220794124706550" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDividendDistribution" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_639220794124712481" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_NetIncreaseDecreaseInNetAssetsFromShareholderDistribution_639220794124706550" xlink:to="us-gaap_InvestmentCompanyDividendDistribution_639220794124712481" order="1" use="optional" weight="-1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/StatementConsolidatedStatementsOfCashFlows" xlink:type="extended" xlink:title="995200400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss_639220794124712481" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_NetIncomeLoss_639220794124712481" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity" xlink:label="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_639220794124712481" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_PaymentsForPurchaseOfInvestmentOperatingActivity_639220794124712481" order="2" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity" xlink:label="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_ProceedsFromDispositionOfInvestmentOperatingActivity_639220794124717939" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_AmortizationOfPremiumAndAccretionOfDiscountNet" xlink:label="none_AmortizationOfPremiumAndAccretionOfDiscountNet_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="none_AmortizationOfPremiumAndAccretionOfDiscountNet_639220794124717939" order="4" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInKind" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_InterestIncomeOperatingPaidInKind_639220794124717939" order="5" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_639220794124717939" order="6" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="us-gaap_AmortizationOfFinancingCosts_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_AmortizationOfFinancingCosts_639220794124717939" order="7" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_639220794124717939" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_639220794124717939" order="8" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDueToAffiliates" xlink:label="us-gaap_IncreaseDecreaseInDueToAffiliates_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_IncreaseDecreaseInDueToAffiliates_639220794124723974" order="9" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="us-gaap_IncreaseDecreaseInInterestPayableNet_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_IncreaseDecreaseInInterestPayableNet_639220794124723974" order="10" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInManagementFeePayable" xlink:label="us-gaap_IncreaseDecreaseInManagementFeePayable_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_IncreaseDecreaseInManagementFeePayable_639220794124723974" order="11" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124723974" order="12" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_IncreaseDecreaseInDirectorsFeesPayable" xlink:label="none_IncreaseDecreaseInDirectorsFeesPayable_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="none_IncreaseDecreaseInDirectorsFeesPayable_639220794124723974" order="13" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities_639220794124712481" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_639220794124723974" order="14" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_639220794124723974" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividends" xlink:label="us-gaap_PaymentsOfDividends_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" xlink:to="us-gaap_PaymentsOfDividends_639220794124723974" order="2" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="us-gaap_ProceedsFromLongTermLinesOfCredit_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" xlink:to="us-gaap_ProceedsFromLongTermLinesOfCredit_639220794124723974" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_639220794124723974" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" xlink:to="us-gaap_RepaymentsOfLinesOfCredit_639220794124723974" order="4" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities_639220794124723974" xlink:to="us-gaap_PaymentsOfDebtIssuanceCosts_639220794124734935" order="5" use="optional" weight="-1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/DisclosureFairValueOfFinancialInstrumentsFairValueHierarchyDetails" xlink:type="extended" xlink:title="99940501 - Disclosure - Fair Value of Financial Instruments - Fair Value Hierarchy (Details)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentsAndCashEquivalentsFairValueDisclosure" xlink:label="none_InvestmentsAndCashEquivalentsFairValueDisclosure" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="us-gaap_InvestmentsFairValueDisclosure_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentsAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure_639220794124734935" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentsAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_CashAndCashEquivalentsFairValueDisclosure_639220794124734935" order="2" use="optional" weight="1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/DisclosureIncomeTaxesTaxCharacterOfDistributionsDetails" xlink:type="extended" xlink:title="99941002 - Disclosure - Income Taxes - Tax character of distributions (Details)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDividendDistribution" xlink:label="us-gaap_InvestmentCompanyDividendDistribution_1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentCompanyDistributionDeferredAccruedIncome" xlink:label="none_InvestmentCompanyDistributionDeferredAccruedIncome_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDividendDistribution_1" xlink:to="none_InvestmentCompanyDistributionDeferredAccruedIncome_639220794124734935" order="1" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributionOrdinaryIncome" xlink:label="us-gaap_InvestmentCompanyDistributionOrdinaryIncome_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDividendDistribution_1" xlink:to="us-gaap_InvestmentCompanyDistributionOrdinaryIncome_639220794124734935" order="2" use="optional" weight="1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/DisclosureIncomeTaxesComponentsOfAccumulatedEarningsLossesOnTaxBasisDetails" xlink:type="extended" xlink:title="99941003 - Disclosure - Income Taxes - Components of accumulated earnings (losses) on a tax basis (Details)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss_639220794124734935" order="1" use="optional" weight="-1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation_639220794124734935" order="2" use="optional" weight="-1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/DisclosureIncomeTaxesAggregateUnrealizedAppreciationAndDepreciationOnInvestmentsBasedOnCostForUsFederalIncomeTaxPurposesDetails" xlink:type="extended" xlink:title="99941004 - Disclosure - Income Taxes - Aggregate unrealized appreciation and depreciation on investments based on cost for U.S. federal income tax purposes (Details)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:label="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:to="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedAppreciation_639220794124734935" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation" xlink:label="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="us-gaap_TaxBasisOfInvestmentsUnrealizedAppreciationDepreciationNet" xlink:to="us-gaap_TaxBasisOfInvestmentsGrossUnrealizedDepreciation_639220794124734935" order="2" use="optional" weight="-1" />
  </calculationLink>
  <calculationLink xlink:role="http://brightwoodlp.com/role/DisclosureIncomeTaxesReconciliationOfNetIncreaseInNetAssetsResultingFromOperationsToTaxableIncomeDetails" xlink:type="extended" xlink:title="99941005 - Disclosure - Income Taxes - Reconciliation of net increase in net assets resulting from operations to taxable income (Details)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentCompanyTaxableIncomeLoss" xlink:label="none_InvestmentCompanyTaxableIncomeLoss" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentCompanyTaxableIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_639220794124734935" order="1" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentCompanyNetChangeInUnrealizedAppreciationDepreciationOnInvestments" xlink:label="none_InvestmentCompanyNetChangeInUnrealizedAppreciationDepreciationOnInvestments_639220794124734935" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentCompanyTaxableIncomeLoss" xlink:to="none_InvestmentCompanyNetChangeInUnrealizedAppreciationDepreciationOnInvestments_639220794124734935" order="2" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss" xlink:label="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124750429" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentCompanyTaxableIncomeLoss" xlink:to="us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_639220794124750429" order="3" use="optional" weight="1" />
    <loc xlink:type="locator" xlink:href="tmb-20260630.xsd#none_InvestmentCompanyTemporaryBookIncomeAndTaxIncomeDifferences" xlink:label="none_InvestmentCompanyTemporaryBookIncomeAndTaxIncomeDifferences_639220794124750429" />
    <calculationArc xlink:type="arc" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="none_InvestmentCompanyTaxableIncomeLoss" xlink:to="none_InvestmentCompanyTemporaryBookIncomeAndTaxIncomeDifferences_639220794124750429" order="4" use="optional" weight="1" />
  </calculationLink>
</link:linkbase>
