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Capstack Review

Multi-lender financing platform for mid-market business acquisitions

Capstack is a financial technology platform connecting mid-market businesses and acquirers with a curated network of alternative lenders, private credit funds, and institutional financing sources for business acquisitions, growth capital, and recapitalizations. The platform serves companies in the $5M–$100M revenue range that have grown beyond traditional small business lending but aren't large enough for institutional investment banking mandates. Capstack's proprietary matching engine analyzes deal characteristics, business metrics, and financing structure preferences to identify the most relevant capital providers from its network. Deal types include acquisition financing, management buyouts, growth capital loans, and revenue-based financing for digital businesses. The platform's deal room provides secure document sharing and lender communication management, streamlining the fundraising process. The team provides advisory support alongside the platform, helping borrowers understand financing options and structure terms appropriately. Integration with commercial real estate, SaaS, and services industry databases enables faster underwriting at partner lenders. For mid-market business owners and acquirers who find SBA loans too small and traditional investment banking too expensive, Capstack's technology-enabled capital markets access provides an efficient middle market alternative.

5-Dimension Score

5-dimension score radar chartAccuracy4.0Speed3.5Ease of Use4.0Pricing3.0Compliance4.5
Last reviewed May 25, 2026Read our methodology →

Information

  • Websitewww.capstack.com
  • Custom financing structures; acquisition finance and growth capital for mid-market companies; contact for current rates
  • Published date2026/05/25

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