Company lists · Data refreshed September 2026
Top 25 Api banking companies based in the United States
RevenueBase identified 179 api banking companies headquartered in the United States as of September 2026 and tracks 73,595 professional contacts across them, including 29,949 with verified work emails. New York is the largest hub.
This list covers api banking 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 api banking companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38,885 contacts → | ||||
Indirect evidence “Unlocking financial technology.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,759 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,834 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,821 contacts → | ||||
Partial evidence “An award-winning global financial technology innovator powering credit, debit, prepaid, core banking, and money movement solutions, i2c unifies banking and payments in an…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,149 contacts → | ||||
Partial evidence “Mercury is the fintech ambitious companies use for banking* and all their financial workflows.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,003 contacts → | ||||
Indirect evidence “At Pathward, expanding financial access is the heart of our business.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 981 contacts → | ||||
Indirect evidence “Galileo, SoFi's Tech Platform, is a financial technology company that enables fintechs, banks, emerging and established brands to build differentiated financial solutions that…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 700 contacts → | ||||
Partial evidence “Blend Labs Inc,(NYSE: BLND) is the leading origination platform for digital banking solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 556 contacts → | ||||
Indirect evidence “Finicity, a Mastercard company, helps individuals, families, and organizations make smarter financial decisions through safe and secure access to fast, high-quality data.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 512 contacts → | ||||
Indirect evidence “For a hundred years, Evolve Bank & Trust has been dedicated to delivering superior financial services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 481 contacts → | ||||
Indirect evidence “IMM / eSign is now Kinective.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 447 contacts → | ||||
Indirect evidence “At Signzy, we’re solving for lasting first impressions and seamless new beginnings.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 354 contacts → | ||||
Partial evidence “Personetics, the Cognitive Banking Platform, is a pioneer in transforming how banks build and monetize customer relationships.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 318 contacts → | ||||
Partial evidence “VSoft is a leading provider of banking and payment solutions to financial institutions of all sizes worldwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 309 contacts → | ||||
Partial evidence “Novo is banking built for independent businesses.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 289 contacts → | ||||
Partial evidence “Rho is the modern banking platform built for startups.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 252 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 243 contacts → | ||||
Partial evidence “Tyfone is the creator of nFinia®, a dramastically better retail/commercial digital banking platform, as well as several platform-agnostic, revenue-generating digital business…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 234 contacts → | ||||
Partial evidence “NovoPayment, a category leader in the area of Banking as a Service (BaaS) platforms across the Americas, enables digital financial and transactional services in support of varied…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 214 contacts → | ||||
Partial evidence “Apiture, now part of CSI, delivers award-winning digital banking solutions to community and regional banks and credit unions, helping them compete with the nation’s largest…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 199 contacts → | ||||
Partial evidence “Founded in 2001, CFSB is a full-service payments, lending and banking provider that delivers global financial services through a personal approach.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 190 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 186 contacts → | ||||
Indirect evidence “Ingo Payments, an Ingo Money Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 171 contacts → | ||||
Indirect evidence “Amount was acquired by FIS in August 2025.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 161 contacts → | ||||
Indirect evidence “Inswitch, a TransNetwork Company, delivers embedded financial technology to help businesses scale, innovate, and streamline financial operations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: api banking companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names api banking companies.
- Partial evidence
- Its own public description names part of api banking companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name api banking companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 179 api banking companies based in the United States
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Api banking companies based in the United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 179 companies.
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 api banking companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “api banking companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names api banking companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among api banking 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 its RevenueBase Smart Search 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, 29,949 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 16, 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
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names api banking companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many api banking companies are there based in the United States?
RevenueBase identified 179 api banking 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?
FIS, headquartered in Jacksonville, tops this list with the largest team on record.
Which city has the most api banking companies?
New York leads with 23 headquartered companies, followed by San Francisco (17) and Austin (8).
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 29,949 verified decision-maker contacts tracked across these 179 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 16, 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 Smart Search, 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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