“Can Flex become the all-in-one financial operating system for mid-market business owners — managing revenue, spend, credit, and treasury — without requiring an in-house finance team?”
Founded in 2022 after pivoting from Flexbase Technologies, a construction-focused platform, Flex repositioned as an all-in-one finance platform for mid-market business owners lacking in-house finance teams. The company came out of stealth in 2023 with a business credit card and expense tracking, then rapidly expanded into bill payments, private credit, and treasury optimization. By late 2025, Flex had crossed $1B in transaction volume and raised a $60M Series B, positioning itself as the financial OS for business owners — managing everything from revenue generation to personal spending.
Flexible Finance (flex) discloses Lead Bank as its banking provider, according to the Embedded Finance Index 2026.
Flexible Finance (flex) does not disclose a bank charter of its own; its banking services are provided through Lead Bank.
Flexible Finance (flex)'s lending and capital products are provided by Blue Ridge Bank.
The Embedded Finance Index 2026 maps 3 layers in Flexible Finance (flex)'s stack: Banking / BaaS (Lead Bank); Lending (Blue Ridge Bank, Flex Rent (unsecured revolving line of credit for rent payments), Flex Move-in (term loan, 16.95%-23.84% APR) and Business credit card); Sponsor bank (Lead Bank).
Flexible Finance (flex) was founded by Zaid Rahman and is founded in 2022, headquartered in Miami, Florida, USA.
Flexible Finance (flex) has raised $105M equity + $200M credit facility in total (latest round: Series B, December 2025; valuation: ~$250M post-money (March 2025 reference)).
Get a read on where your own stack stands against Flexible Finance (flex) and the rest of its category — what they built versus bought, which providers they use, and where the gaps in your own strategy and competitive set actually are.