Company lists · Data refreshed September 2026
Top 25 Fintech api providers based in the United States
RevenueBase identified 170 fintech api providers headquartered in the United States as of September 2026 and tracks 22,855 professional contacts across them, including 10,737 with verified work emails and 8,988 with mobile numbers. New York is the largest hub.
This list covers fintech api providers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 2, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest fintech api providers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,765 | ||||
“Jack Henry (Nasdaq: JKHY) is a well-rounded financial technology company that strengthens the connections between people and their financial institutions through technology and…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,814 | ||||
“Q2 is a financial experience company dedicated to providing digital banking and lending solutions to banks, credit unions, alternative finance, and fintech companies in the U.S.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,368 | ||||
“Plaid is a data network that powers the tools millions of people rely on to live a healthier financial life.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 935 | ||||
“Cross River Bank provides technology infrastructure powering the future of financial services.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | MXIndirect evidence | 667 | |||
“MX Technologies, Inc.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 551 | ||||
“MoneyLion (part of Gen) is a leader in financial technology, powering the next generation of personalized products and content, with a top consumer finance super app, a premier…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 401 | ||||
“Founded in 2018, Bakkt, Inc.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 351 | ||||
“Kinective is leading the way to Intelligent Banking.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 332 | ||||
“DriveWealth is a global B2B financial technology platform.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 319 | ||||
“VSoft is a leading provider of banking and payment solutions to financial institutions of all sizes worldwide.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 296 | ||||
“Alpaca is a US-headquartered, self-clearing broker-dealer and a global leader in brokerage infrastructure APIs providing access to stocks, ETFs, options, fixed income, and crypto.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 250 | ||||
“Nymbus is a leader in the financial services industry, offering best-in-class products and services that provide a modern alternative to traditional business models for banks and…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 195 | ||||
“Founded in 2001, CFSB is a full-service payments, lending and banking provider that delivers global financial services through a personal approach.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 191 | ||||
“Finxact is the first enterprise-class 100 percent open API cloud-native innovation platform and transaction processing engine, agnostic to asset classes, currencies, and time…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 174 | ||||
“Icon Solutions is a fintech company that has been designing and implementing state-of-the-art payments systems since 2009.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 152 | ||||
“MerchantE provides a financial technology platform that drives digital commerce and supports the money management needs of growing businesses.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | MBANQIndirect evidence | 140 | |||
“Founded in 2016, Mbanq stands as a pioneering force in the digital finance industry.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 132 | ||||
“Parafin’s infrastructure powers financial services for marketplaces, vertical SaaS, payment platforms, and more.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 122 | ||||
Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | TruenorthPartial evidence | 122 | |||
“TrueNorth is one of the largest and most successful financial technology services companies in the world having built three fintech unicorns from scratch–Upgrade, LendingClub, and…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 119 | ||||
“Momnt powers modern lending solutions for businesses to provide low-friction, affordable financing to their customers at the moment of need.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | Quotemedia, INCIndirect evidence | 117 | |||
Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 106 | ||||
“TabaPay, the leading instant money movement platform, enables secure, reliable, and lower cost instant payments for Fintech innovators.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 104 | ||||
“With the mission of improving the bank-client relationship, Strands is the worldwide leading FinTech that develops solutions for financial institutions to increase customer…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 96 | ||||
“BriteCap is a data-driven FinTech company dedicated to improving the financial health of America’s small businesses.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 170 fintech api providers based in the United States
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Fintech api providers based in the United States at a glance
As of Sep 2, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among fintech api providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “fintech api providers”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among fintech api providers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 10,737 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 2, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many fintech api providers are there based in the United States?
RevenueBase identified 170 fintech api providers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Jack Henry, headquartered in Monett, tops this list with the largest team on record.
Which city has the most fintech api providers?
New York leads with 20 headquartered companies, followed by San Francisco (16) and Atlanta (10).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 10,737 verified decision-maker contacts tracked across these 170 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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