“Can a vertical-first 'AI CFO' bundle (card + checking + bill pay + analytics) win the backbone-SMB segment that Brex and Ramp skipped?”
Affiniti began as a vertical-focused SMB credit card company targeting 'backbone' industries underserved by Brex/Ramp — HVAC, community pharmacies, podiatry — distributing through trade-association partnerships. The card program launched on i2c's processing rails with Patriot Bank as issuer. In 2025–2026 the company broadened into a full SMB financial OS, adding a Thread Bank-powered checking account, bill pay, expense management, and an 'AI CFO' agent narrative, with Column N.A. providing receivables financing to fund card growth.
Affiniti discloses Thread Bank and Unit as its banking providers, with Column Bank, N.A. and Patriot Bank as its sponsor banks, according to the Embedded Finance Index 2026.
Affiniti does not disclose a bank charter of its own; its banking services are provided through Column Bank, N.A. and Patriot Bank.
Affiniti's cards are issued through i2c on the Mastercard network.
Affiniti's lending and capital products are provided by Column.
The Embedded Finance Index 2026 maps 6 layers in Affiniti's stack: Banking / BaaS (Thread Bank and Unit); Card issuing (i2c); Card network (Mastercard); Lending (Column and Affiniti Business Mastercard (charge/credit card with limits up to $5M)); Sponsor bank (Thread Bank, Column Bank, N.A. and Patriot Bank); Spend / AP (Unit).
Affiniti was founded by Aaron Bai and Sahil Phadnis and is founded in 2022, headquartered in New York, NY, USA.
Affiniti has raised $28M+ in total (latest round: Series A, May 2025).
Get a read on where your own stack stands against Affiniti 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.