<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e7560-42b8-75b8-afc0-97cf4c3153d0,g:10da5c5b-5403-4c36-bbcb-0c4cbbe98e84-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" 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">
  <link:roleRef roleURI="http://www.stepstonegroup.com/role/DocumentandEntityInformationDocument" xlink:type="simple" xlink:href="step-20260529.xsd#DocumentandEntityInformationDocument"/>
  <link:presentationLink xlink:role="http://www.stepstonegroup.com/role/DocumentandEntityInformationDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e7560-42b8-7f0a-a3cf-5c9730b92bd7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_DocumentType_019e7560-42b8-7f0a-a3cf-5c9730b92bd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e7560-42b8-7596-8a32-6a00ef76d484" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_DocumentPeriodEndDate_019e7560-42b8-7596-8a32-6a00ef76d484" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e7560-42b8-71dc-b5e5-7e80b47ba0f8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityRegistrantName_019e7560-42b8-71dc-b5e5-7e80b47ba0f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e7560-42b8-7440-add0-097c2ff5c0b5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityCentralIndexKey_019e7560-42b8-7440-add0-097c2ff5c0b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e7560-42b8-753f-a342-bd199db0e810" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_AmendmentFlag_019e7560-42b8-753f-a342-bd199db0e810" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e7560-42b8-731c-a622-4ca1d1b32a4f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e7560-42b8-731c-a622-4ca1d1b32a4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e7560-42b8-7ea0-9508-c8bd2633c270" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityFileNumber_019e7560-42b8-7ea0-9508-c8bd2633c270" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e7560-42b8-77f6-8ccc-f106e6f100f1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e7560-42b8-77f6-8ccc-f106e6f100f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e7560-42b8-7ef0-81f6-c245732c4620" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityAddressAddressLine1_019e7560-42b8-7ef0-81f6-c245732c4620" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e7560-42b8-7559-b22f-d0e8b1fc5ea8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityAddressCityOrTown_019e7560-42b8-7559-b22f-d0e8b1fc5ea8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e7560-42b8-7b17-88d5-b532d5f6cb0f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityAddressStateOrProvince_019e7560-42b8-7b17-88d5-b532d5f6cb0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e7560-42b8-706b-9e83-ca554686aee5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityAddressPostalZipCode_019e7560-42b8-706b-9e83-ca554686aee5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e7560-42b8-73d9-a2b2-7ee578d160f9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_CityAreaCode_019e7560-42b8-73d9-a2b2-7ee578d160f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e7560-42b8-7556-ab14-4e342d26032a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_LocalPhoneNumber_019e7560-42b8-7556-ab14-4e342d26032a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e7560-42b8-7e89-aaae-33e208adb672" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_WrittenCommunications_019e7560-42b8-7e89-aaae-33e208adb672" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e7560-42b8-7dca-bc0d-cc0ff9cdf9aa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_SolicitingMaterial_019e7560-42b8-7dca-bc0d-cc0ff9cdf9aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e7560-42b8-738b-bba5-4be6021f9d78" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_PreCommencementTenderOffer_019e7560-42b8-738b-bba5-4be6021f9d78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e7560-42b8-7efd-862d-4ddc8f3f25e6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e7560-42b8-7efd-862d-4ddc8f3f25e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e7560-42b8-72ce-b7c7-eb41406e5044" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_Security12bTitle_019e7560-42b8-72ce-b7c7-eb41406e5044" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e7560-42b8-75b2-8079-bdbd20808bb7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_TradingSymbol_019e7560-42b8-75b2-8079-bdbd20808bb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e7560-42b8-7e16-af9e-fdb8f3e6876a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_SecurityExchangeName_019e7560-42b8-7e16-af9e-fdb8f3e6876a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e7560-42b8-7b7a-bffe-0da2af683eca" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e7560-42b8-78f5-b201-45d47bddb921" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e7560-42b8-7b7a-bffe-0da2af683eca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
