Lithic
Started as consumer virtual-card app Privacy.com, then flipped its own infrastructure into a developer-first issuing API — the leanest way for US fintechs to spin up a card program.
Other card issuing processors
GalileoMarqetaThreddi2cPaymentologyPomeloNiumStripe IssuingAdyen IssuingCoreCardEpisode SixHighnoteWallesterZeta
Client list shows tracked neobanks with a publicly documented relationship — not a complete customer book. Sourced from issuer disclosures and public reporting; suggest a fix.