| Schedule of changes in carrying amount of goodwill |
| | | | | | | | | | | | Owned | | | | | | | Service Network | | Transportation | | Amount | Balance as of January 1, 2023 | | $ | 2,403,722 | | $ | — | | $ | 2,403,722 | Impairment | | | (157,103) | | | — | | | (157,103) | Balance as at December 31, 2023 | | | 2,246,619 | | | — | | | 2,246,619 | Acquisitions | | | 259,347 | | | 790,451 | | | 1,049,798 | Impairment | | | (1,568,309) | | | — | | | (1,568,309) | Balance as at December 31, 2024 | | $ | 938,154 | | $ | 790,451 | | $ | 1,728,108 |
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| Schedule of identifiable intangible assets |
Identifiable intangible assets consist of the following at December 31, 2024: | | | | | | | | | | | | | | | Weighted Average Remaining Amortization Period (years) | | Gross Amount | | Accumulated Amortization | | Net Amount | Customer relationships | | | 11.5 | | $ | 777,180 | | $ | (373,653) | | $ | 403,527 | Tradename | | | 6.1 | | | 386,080 | | | (102,722) | | | 283,358 | Noncompetition agreements | | | 2.1 | | | 34,000 | | | (19,570) | | | 14,430 | Intellectual property | | | 9.5 | | | 35,186 | | | (22,947) | | | 12,239 | Acquired technology | | | 4.6 | | | 440,530 | | | (35,360) | | | 405,170 | Internally developed software | | | 3.3 | | | 609,385 | | | (319,933) | | | 289,452 | Total intangible assets, net | | | | | $ | 2,282,361 | | $ | (874,185) | | $ | 1,408,176 |
Identifiable intangible assets consist of the following at December 31, 2023: | | | | | | | | | | | | | | | | | Gross Amount | | Accumulated Amortization | | Net Amount | Customer relationships | | | | | $ | 1,445,000 | | $ | (582,256) | | $ | 862,744 | Tradename | | | | | | 923,000 | | | (216,501) | | | 706,499 | Noncompetition agreements | | | | | | 126,000 | | | (82,037) | | | 43,963 | Intellectual property | | | | | | 35,186 | | | (20,073) | | | 15,113 | Internally developed software | | | | | | 439,617 | | | (227,061) | | | 212,556 | Total intangible assets, net | | | | | $ | 2,968,803 | | $ | (1,127,928) | | $ | 1,840,875 |
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| Schedule of amortization expense |
| | | | Year ending December 31, | | Amount | 2025 | | $ | 281,829 | 2026 | | | 254,653 | 2027 | | | 207,443 | 2028 | | | 194,778 | 2029 | | | 139,001 | Thereafter | | | 162,075 | Total | | $ | 1,239,779 |
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