Company lists · Data refreshed September 2026
Top 25 Fintech as a service companies based in the United States
RevenueBase identified 748 fintech as a service companies headquartered in the United States as of September 2026 and tracks 218,901 professional contacts across them, including 71,536 with verified work emails and 58,667 with mobile numbers. New York is the largest hub.
This list covers fintech as a service companies 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 as a service companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 80,619 | ||||
“At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 12,856 | ||||
“Stripe builds programmable financial services.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 11,075 | ||||
“Global Payments (NYSE: GPN) is a leading payment technology and software company that powers commerce for businesses of all sizes worldwide.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10,656 | ||||
“Nu is one of the largest digital financial services platforms in the world, serving 135 million customers across Brazil, Mexico, and Colombia.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8,150 | ||||
“Worldpay combined with Global Payments in January 2026 to create a leading payments technology and software company that powers commerce for businesses of all sizes worldwide.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 6,637 | ||||
“First Data is now Fiserv (NASDAQ:FISV).” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6,126 | ||||
“Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4,347 | ||||
“The world’s leading brands trust Verifone for global payments.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,809 | ||||
“SumUp is a leading global fintech company committed to levelling the playing field for small businesses.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,696 | ||||
“Deluxe, a trusted payments and data company, champions business so communities thrive.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2,888 | ||||
“Elavon, a wholly owned subsidiary of U.S.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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. | |||||
| 14 | 2,421 | ||||
“InComm Payments is an innovative global payments technology provider.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,223 | ||||
“Chime was created because we believe everyone can unlock financial progress, and we want to develop solutions and services to empower people to succeed.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,101 | ||||
“Ramp is an all-in-one financial operations platform designed to save businesses time and money.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,849 | ||||
“As a forward-thinking financial technology and software partner, we help community and regional banks, as well as organizations worldwide, solve their customers’ needs through…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,773 | ||||
“JUSPAY is a global leader in enterprise payment solutions, powering payments for merchants and banks worldwide.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,671 | ||||
“Brex is the intelligent finance platform built for speed and control, empowering founders and finance teams to spend smarter and move faster globally with intuitive corporate…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,605 | ||||
“FLEETCOR Technologies rebranded as Corpay on March 25, 2024.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,208 | ||||
“About Green Dot Green Dot Corporation (NYSE: GDOT) is a financial technology platform and registered bank holding company that builds banking and payment solutions to create…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,125 | ||||
“Mercury is the fintech ambitious companies use for banking* and all their financial workflows.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,077 | ||||
“At the forefront of the financial revolution, Topaz is a technological powerhouse specializing in digital financial solutions, standing out as the undisputed leader in the…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,043 | ||||
“Live Oak Bank has had the privilege of helping thousands of passionate, driven people turn their dreams into reality.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,023 | ||||
“At Pathward, expanding financial access is the heart of our business.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 748 fintech as a service companies based in the United States
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Fintech as a service companies 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 as a service companies, 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 as a service companies”. 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 as a service companies, 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, 71,536 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.
Fintech as a service companies by metro
- Fintech as a service companies in New York61
- Fintech as a service companies in San Francisco46
- Fintech as a service companies in Miami29
- Fintech as a service companies in Atlanta25
Frequently asked
How many fintech as a service companies are there based in the United States?
RevenueBase identified 748 fintech as a service companies 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?
American Express, headquartered in New York, tops this list with the largest team on record.
Which city has the most fintech as a service companies?
New York leads with 61 headquartered companies, followed by San Francisco (46) and Miami (29).
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 71,536 verified decision-maker contacts tracked across these 748 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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