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, 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.

How to read this list Match evidence 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. Evidence rates how directly each company's own description names fintech infrastructure companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	NubankIndirect evidence	Durham, NC, United States	5,001-10,000	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, 2026
2	Jack HenryIndirect evidence	Monett, MO, United States	5,001-10,000	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, 2026
3	First Data CorporationIndirect evidence	United States	10001+	6,637
	“First Data is now Fiserv (NASDAQ:FISV).” Source: company website · checked Sep 2, 2026
4	SquareIndirect evidence	Seattle, WA, United States	1,001-5,000	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, 2026
5	VerifoneIndirect evidence	Alpharetta, GA, United States	1,001-5,000	4,347
	“The world’s leading brands trust Verifone for global payments.” Source: company website · checked Sep 2, 2026
6	DeluxeIndirect evidence	Sandy Springs, GA, United States	5,001-10,000	3,696
	“Deluxe, a trusted payments and data company, champions business so communities thrive.” Source: company website · checked Sep 2, 2026
7	Q2Partial evidence	Des Moines, IA, United States	1,001-5,000	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, 2026
8	Incomm PaymentsIndirect evidence	Atlanta, GA, United States	1,001-5,000	2,421
	“InComm Payments is an innovative global payments technology provider.” Source: company website · checked Sep 2, 2026
9	CSIIndirect evidence	Paducah, KY, United States	1,001-5,000	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, 2026
10	JuspayIndirect evidence	San Mateo, CA, United States	1,001-5,000	1,773
	“JUSPAY is a global leader in enterprise payment solutions, powering payments for merchants and banks worldwide.” Source: company website · checked Sep 2, 2026
11	Early WarningIndirect evidence	Washington, DC, United States	1,001-5,000	1,551
	“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: company website · checked Sep 2, 2026
12	Green DOT CorporationIndirect evidence	Provo, UT, United States	1,001-5,000	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, 2026
13	MercuryPartial evidence	San Francisco, CA, United States	1,001-5,000	1,125
	“Mercury is the fintech ambitious companies use for banking* and all their financial workflows.” Source: company website · checked Sep 2, 2026
14	TOPAZIndirect evidence	Great Falls, VA, United States	1,001-5,000	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, 2026
15	MarqetaIndirect evidence	Oakland, CA, United States	501-1,000	969
	“Modern life is fueled by modern financial solutions that are so seamlessly woven into our daily lives, you almost forget they are there.” Source: company website · checked Sep 2, 2026
16	Cross RiverPartial evidence	Fort Lee, NJ, United States	501-1,000	935
	“Cross River Bank provides technology infrastructure powering the future of financial services.” Source: company website · checked Sep 2, 2026
17	The BancorpIndirect evidence	Wilmington, DE, United States	501-1,000	796
	“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: company website · checked Sep 2, 2026
18	Discover Financial ServicesIndirect evidence	Riverwoods, IL, United States	10001+	746
	“We are Discover.” Source: company website · checked Sep 2, 2026
19	SesamiIndirect evidence	Dallas, TX, United States	501-1,000	744
	“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: company website · checked Sep 2, 2026
20	BLENDIndirect evidence	San Francisco, CA, United States	1,001-5,000	706
	“Blend Labs Inc,(NYSE: BLND) is the leading origination platform for digital banking solutions.” Source: company website · checked Sep 2, 2026
21	BluevineIndirect evidence	Gretna, LA, United States	501-1,000	595
	“We empower small businesses with innovative banking products designed for them.” Source: company website · checked Sep 2, 2026
22	VantivIndirect evidence	Symmes Township Cincinnati, OH, United States	1,001-5,000	562
	“We are now FIS.” Source: company website · checked Sep 2, 2026
23	MoneylionIndirect evidence	Sioux Falls, SD, United States	501-1,000	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, 2026
24	Shazam Network - Its, INCIndirect evidence	Johnston, IA, United States	501-1,000	518
	“SHAZAM Inc.” Source: company website · checked Sep 2, 2026
25	Evolve Bank & TrustIndirect evidence	Memphis, TN, United States	501-1,000	511
	“For a hundred years, Evolve Bank & Trust has been dedicated to delivering superior financial services.” Source: company website · checked Sep 2, 2026

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

11-50Median size (employees)

New YorkLargest hub · 113 HQs

28,178Contacts with mobile numbers

Sep 2, 2026Data 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 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 infrastructure 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 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 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, 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

Fintech infrastructure companies in New York113
Fintech infrastructure companies in San Francisco58
Fintech infrastructure companies in Miami36

Frequently asked

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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Fintech infrastructure companies by geography

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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.