Company lists · Data refreshed September 2026

Top 25 Fintech infrastructure companies based in the United States

Name: Fintech infrastructure companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 866 companies tracked

RevenueBase identified 866 fintech infrastructure companies headquartered in the United States as of September 2026 and tracks 94,571 professional contacts across them, including 38,530 with verified work emails and 28,178 with mobile numbers. New York is the largest hub.

This list covers fintech infrastructure 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 2, 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

866Companies

94,571Contacts tracked

38,530Verified emails

28,178Mobile numbers

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The 25 largest fintech infrastructure companies based in the United States

Ranked by team size

Top 25 of 866 fintech infrastructure companies based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to fintech infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nubank	Indirect evidence	Durham, NC, United States	5,001-10,000	10,656 contacts →
	Indirect evidence “Nu is one of the largest digital financial services platforms in the world, serving 135 million customers across Brazil, Mexico, and Colombia.” Source: RevenueBase Database · checked Sep 2, 2026
2	Jack Henry	Indirect evidence	Monett, MO, United States	5,001-10,000	6,765 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 2, 2026
3	First Data Corporation	Indirect evidence	United States	10001+	6,637 contacts →
	Indirect evidence “First Data is now Fiserv (NASDAQ:FISV).” Source: RevenueBase Database · checked Sep 2, 2026
4	Square	Indirect evidence	Seattle, WA, United States	1,001-5,000	6,126 contacts →
	Indirect evidence “Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.” Source: RevenueBase Database · checked Sep 2, 2026
5	Verifone	Indirect evidence	Alpharetta, GA, United States	1,001-5,000	4,347 contacts →
	Indirect evidence “The world’s leading brands trust Verifone for global payments.” Source: RevenueBase Database · checked Sep 2, 2026
6	Deluxe	Indirect evidence	Sandy Springs, GA, United States	5,001-10,000	3,696 contacts →
	Indirect evidence “Deluxe, a trusted payments and data company, champions business so communities thrive.” Source: RevenueBase Database · checked Sep 2, 2026
7	Q2	Partial evidence	Des Moines, IA, United States	1,001-5,000	2,814 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 2, 2026
8	Incomm Payments	Indirect evidence	Atlanta, GA, United States	1,001-5,000	2,421 contacts →
	Indirect evidence “InComm Payments is an innovative global payments technology provider.” Source: RevenueBase Database · checked Sep 2, 2026
9	CSI	Indirect evidence	Paducah, KY, United States	1,001-5,000	1,849 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 2, 2026
10	Juspay	Indirect evidence	San Mateo, CA, United States	1,001-5,000	1,773 contacts →
	Indirect evidence “JUSPAY is a global leader in enterprise payment solutions, powering payments for merchants and banks worldwide.” Source: RevenueBase Database · checked Sep 2, 2026
11	Early Warning	Indirect evidence	Washington, DC, United States	1,001-5,000	1,551 contacts →
	Indirect evidence “Early Warning Services, LLC, helps power payments innovation across the United States banking sector –enabling financial access, advancing reliable and fast payments for America’s…” Source: RevenueBase Database · checked Sep 2, 2026
12	Green DOT Corporation	Indirect evidence	Provo, UT, United States	1,001-5,000	1,208 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 2, 2026
13	Mercury	Partial evidence	San Francisco, CA, United States	1,001-5,000	1,125 contacts →
	Partial evidence “Mercury is the fintech ambitious companies use for banking* and all their financial workflows.” Source: RevenueBase Database · checked Sep 2, 2026
14	TOPAZ	Indirect evidence	Great Falls, VA, United States	1,001-5,000	1,077 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 2, 2026
15	Marqeta	Indirect evidence	Oakland, CA, United States	501-1,000	969 contacts →
	Indirect evidence “Modern life is fueled by modern financial solutions that are so seamlessly woven into our daily lives, you almost forget they are there.” Source: RevenueBase Database · checked Sep 2, 2026
16	Cross River	Partial evidence	Fort Lee, NJ, United States	501-1,000	935 contacts →
	Partial evidence “Cross River Bank provides technology infrastructure powering the future of financial services.” Source: RevenueBase Database · checked Sep 2, 2026
17	The Bancorp	Indirect evidence	Wilmington, DE, United States	501-1,000	796 contacts →
	Indirect evidence “The Bancorp, Inc, headquartered in Wilmington, DE, through its subsidiary, The Bancorp Bank, N.A, headquartered in Sioux Falls, SD, is defining the future of banking.” Source: RevenueBase Database · checked Sep 2, 2026
18	Discover Financial Services	Indirect evidence	Riverwoods, IL, United States	10001+	746 contacts →
	Indirect evidence “We are Discover.” Source: RevenueBase Database · checked Sep 2, 2026
19	Sesami	Indirect evidence	Dallas, TX, United States	501-1,000	744 contacts →
	Indirect evidence “Sesami helps financial institutions and consumer businesses optimize their cash ecosystem’s performance through a single end-to-end partnership and unique business intelligence…” Source: RevenueBase Database · checked Sep 2, 2026
20	BLEND	Indirect evidence	San Francisco, CA, United States	1,001-5,000	706 contacts →
	Indirect evidence “Blend Labs Inc,(NYSE: BLND) is the leading origination platform for digital banking solutions.” Source: RevenueBase Database · checked Sep 2, 2026
21	Bluevine	Indirect evidence	Gretna, LA, United States	501-1,000	595 contacts →
	Indirect evidence “We empower small businesses with innovative banking products designed for them.” Source: RevenueBase Database · checked Sep 2, 2026
22	Vantiv	Indirect evidence	Symmes Township Cincinnati, OH, United States	1,001-5,000	562 contacts →
	Indirect evidence “We are now FIS.” Source: RevenueBase Database · checked Sep 2, 2026
23	Moneylion	Indirect evidence	Sioux Falls, SD, United States	501-1,000	551 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 2, 2026
24	Shazam Network - Its, INC	Indirect evidence	Johnston, IA, United States	501-1,000	518 contacts →
	Indirect evidence “SHAZAM Inc.” Source: RevenueBase Database · checked Sep 2, 2026
25	Evolve Bank & Trust	Indirect evidence	Memphis, TN, United States	501-1,000	511 contacts →
	Indirect evidence “For a hundred years, Evolve Bank & Trust has been dedicated to delivering superior financial services.” Source: RevenueBase Database · checked Sep 2, 2026

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: fintech infrastructure 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 fintech infrastructure companies.
Partial evidence: Its own public description names part of fintech infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fintech infrastructure 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 866 fintech infrastructure companies based in the United States

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Fintech infrastructure companies based in the United States at a glance

As of Sep 2, 2026

40.7%Verified-email coverage

29.8%Mobile-number coverage

109.2Average contacts per company

11-50Median size (employees)

13.0%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

279

11-50

321

51-200

163

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 infrastructure 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 “fintech infrastructure 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 fintech infrastructure 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 fintech infrastructure 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, 38,530 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 infrastructure companies by metro

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 fintech infrastructure 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 fintech infrastructure companies are there based in the United States?

RevenueBase identified 866 fintech infrastructure 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?

Nubank, headquartered in Durham, tops this list with the largest team on record.

Which city has the most fintech infrastructure companies?

New York leads with 113 headquartered companies, followed by San Francisco (58) and Miami (36).

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 38,530 verified decision-maker contacts tracked across these 866 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 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.