Flex — the financial OS nobody heard of.
The AI-powered financial operating system for business owners — banking, credit, bill pay and global payments.
Annualized revenue
$6M → $200M in three years — 33× and still compounding at ~5× YoY.
Scale check — vs the crypto-card sector
Flex's reported TPV next to annualized on-chain card settlement tracked by OpenRate.
Different metrics by necessity: Flex is total payment volume; card figures are annualized on-chain settlement (OpenRate index / Paymentscan). Context of scale, not a like-for-like ranking.
Why it matters
The trajectory is a step-change: $75M revenue and $3B TPV at the end of 2025 → ~$200M ARR and $10B TPV by July 2026. Flex nearly tripled revenue and more than tripled volume in about seven months, with the valuation jumping $500M → $1.2B on a fresh $70M raise.
At $10B of annualized volume, one fintech nobody on crypto X has heard of is doing ~80% of the entire on-chain crypto-card market ($12.2B/yr) by itself.
The model is “not another card”: the Net-60 charge card is only the wedge. Banking, AP automation, global payouts and an AI layer stack ~$20–30K of revenue per business across 4+ products — though Sacra notes it's still mostly interchange.
It is deliberately narrow — owner-operated businesses in the $3M–$100M revenue band, a segment that employs ~40% of Americans — where crypto cards chase broad consumer sign-ups. The team is unusually senior too: 25% of Flex's engineers are former CTOs.
Capital structure matches the product: $175M of equity plus $300M+ in credit facilities, because a Net-60 float business is a lending business.
2023–2025 figures per Sacra; 2026 figures direct from the company. Unlike the on-chain card programs OpenRate indexes, Flex runs on traditional rails — there is no public ledger to index.
The stack — five products, one owner
Every layer sells the next one. The card funds the float, the float funds the banking relationship, the AI runs the back office.
Business banking
Operating accounts, treasury and expense management for middle-market owners.
Flex Credit Card (Net-60)
Charge card with a 60-day float — the wedge product that funds working capital.
AI bill pay / AP automation
Agentic accounts-payable: invoices parsed, coded and paid with ERP sync.
Global payments
Cross-border payouts to 180+ countries.
Owner Intelligence
AI layer across the stack — Flex describes agents running five core product areas.
Personal + private credit
Personal finance and private-credit offerings for the owner, not just the business.
Company file
Funding and corporate facts from company announcements and press coverage.
| Company | Flex (flex.one, formerly Flexbase) — “AI-native private banking for owners” |
| Founded | Pre-seed May 2021 · Miami, Florida (not the 2019 rent-payments startup getflex.com) |
| Founder / CEO | Zaid Rahman |
| Category | Business neobank / financial operating system (fintech, not a bank) |
| Equity raised | $175M total — $70M at $1.2B (Jul 2026) after the $60M Series B (Dec 2025, Portage, ~$500M post) |
| Valuation now | $1.2B — $70M raised at this valuation (July 2026) |
| ARR now | ~$200M, growing 5× YoY (July 2026) |
| Team | 25% of engineers are former CTOs |
| Debt | $300M+ in credit facilities (incl. the $200M facility announced Mar 2025) |
| Investors | Portage, Titanium Ventures, Wellington, Crosslink, Companyon, Florida Funders, MS&AD Ventures, others |
| Revenue (Sacra) | $6M (2023) → $19M (2024) → $75M (2025 annualized, +295% YoY); mostly interchange, not SaaS |
| TPV (Sacra) | $1B annualized (Mar 2025) → $3B (Dec 2025) — tripling in ~9 months; $10B annualized by mid-2026 |
| Customers | Owner-operated businesses, $3M–$100M revenue; ~$20–30K revenue per customer, 4+ products each |
| Recognition | Fast Company Most Innovative Companies 2026 |
Sources: Flex (July 2026 — ARR, TPV, valuation, businesses, team); Sacra company profile (May 2026 — 2023–25 revenue, TPV, Series B); Flex announcements (flex.one); Business Wire (Mar 2025); FinTech Futures.