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Flex

hybrid · San Francisco, US · est. 2022 · open in the directory → · Deutsch → · Italiano → · Français → · Español → · Português →

short answerFlex is a fiat-and-crypto neobank built for SMB & startups, headquartered in San Francisco, US and founded in 2022. Your money is held custodially, so Flex or its partner bank holds the balance and you hold a claim on it. It operates on a partner-bank model (Partner banks (Column, Lead, Thread)). It issues a Visa business charge and credit card. It is available in North America.

Started 2022 as a business credit card, now 'AI-native private banking' for mid-market owners — hit unicorn in July 2026 as Flex Global put invisible stablecoin rails under cross-border payments in 100+ countries.

AI-native private banking for business owners; Flex Global moves money in 100+ countries on stablecoin rails.

the money mapPass-through insurance, via a sponsor bank
Who holds it
A sponsor bank behind the brand — not the app you signed up with — Partner banks (Column, Lead, Thread).
The ledger
Split between a program manager and the sponsor bank — the modular setup that broke in Synapse.
If it fails
Any claim runs through the sponsor bank, and only works if the two ledgers reconcile.

Derived from Flex’s regulation type and custody — a class of protection, not a guarantee. Limits and eligibility vary by scheme, balance and jurisdiction; confirm before you rely on it. What happens if a neobank shuts down →

The facts

Categoryhybrid · SMB & startups
HQSan Francisco, US
Founded2022
CustodyCustodial
Regulation typePartner-bank model
License detailPartner banks (Column, Lead, Thread)
CardVisa · Business charge + credit
CashbackCashback + points
YieldUp to ~2.5% APY on idle cash
StablecoinsYes
KYCYes
Active regionsNorth America
CountriesUnited States
FoundersZaid Rahman
Funding~$180M equity + $300M debt (val ~$1.2B)

Verified links: official site ↗ · terms ↗ · privacy ↗ · @FlexSuperApp ↗

Common questions about Flex

What is Flex?

Flex is a fiat-and-crypto neobank built for SMB & startups, headquartered in San Francisco, US and founded in 2022. Your money is held custodially, so Flex or its partner bank holds the balance and you hold a claim on it. It operates on a partner-bank model (Partner banks (Column, Lead, Thread)).

Does Flex have a card, and where can you use it?

It issues a Visa business charge and credit card. It is available in North America.

Does Flex require KYC?

Yes. Flex requires identity verification (KYC) to open an account, as a partner-bank model.

What does Flex cost?

From the verified fields: cashback Cashback + points; yield Up to ~2.5% APY on idle cash. Cashback and yield are "up to" figures that change constantly and often depend on a paid plan — confirm current terms with Flex before relying on them.

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Early investors

Notable venture and strategic investors from Flex's publicly disclosed funding rounds (~$180M equity + $300M debt (val ~$1.2B)).

comparePut Flex side by side with any of the other 380 tracked neobanks in the directory — custody, license, cashback, yield, stablecoins and geography in one view.

Who owns Flex?  ·  Flex alternatives

Head-to-head

Flex vs Meow · Flex vs Slash · Flex vs Dolafy

Peers

Revolut · Cash App · Mogo · Venmo · Robinhood · Crypto.com

Flex appears in

Neobanks running on someone else’s banking license (82) · Neobanks available in North America (127) · Neobanks for small businesses and startups (33) · Neobanks that issue a Visa card (183) · Neobanks in United States (67)

Figures compiled from public sources, for comparison only — not financial advice. "Up to" rates change constantly; always confirm with the issuer. Spotted an error? Suggest a fix.