Company lists · Data refreshed September 2026

Top 25 Payment processing platforms based in the United States

RevenueBase identified 2,608 payment processing platforms headquartered in the United States as of September 2026 and tracks 286,190 professional contacts across them, including 83,625 with verified work emails and 75,687 with mobile numbers. New York is the largest hub.

This list covers payment processing platforms 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 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
2,608Companies
286,190Contacts tracked
83,625Verified emails
75,687Mobile numbers
Unlock all 2,608 companies Free signup · no credit card · 500 free credits

The 25 largest payment processing platforms based in the United States

Ranked by team size
Top 25 of 2,608 payment processing platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names payment processing platforms: 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.
#CompanyHeadquartersEmployeesContacts
1
American ExpressIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202610001+80,732

“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 5, 2026
2
VISAPartial evidence
Foster City, CA, United StatesHQ checked Sep 5, 202610001+38,597

“Visa (NYSE: V) is a world leader in digital payments, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200…”

Source: company website · checked Sep 5, 2026
3
PaypalIndirect evidence
San Jose, CA, United StatesHQ checked Sep 5, 202610001+30,750

“We're championing possibilities for all by making money fast, easy, and more enjoyable.”

Source: company website · checked Sep 5, 2026
4
StripeIndirect evidence
South San Francisco, CA, United StatesHQ checked Sep 5, 20265,001-10,00013,124

“Stripe builds programmable financial services.”

Source: company website · checked Sep 5, 2026
5
Global Payments INCPartial evidence
Atlanta, GA, United StatesHQ checked Sep 5, 202610001+11,147

“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 5, 2026
6
WorldpayPartial evidence
Cincinnati, OH, United StatesHQ checked Sep 5, 20265,001-10,0008,097

“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 5, 2026
7
First Data CorporationIndirect evidence
Brookfield, United StatesHQ checked Sep 5, 202610001+6,608

“First Data is now Fiserv (NASDAQ:FISV).”

Source: company website · checked Sep 5, 2026
8
SquareIndirect evidence
San Francisco, AZ, United StatesHQ checked Sep 5, 20261,001-5,0006,194

“Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.”

Source: company website · checked Sep 5, 2026
9
ACI WorldwidePartial evidence
Elkhorn, NE, United StatesHQ checked Sep 5, 20261,001-5,0004,588

“ACI Worldwide, an original innovator in global payments technology, delivers transformative software solutions that power intelligent payments orchestration in real time so banks…”

Source: company website · checked Sep 5, 2026
10
VerifonePartial evidence
New York, GA, United StatesHQ checked Sep 5, 20261,001-5,0004,303

“The world’s leading brands trust Verifone for global payments.”

Source: company website · checked Sep 5, 2026
11
HeartlandPartial evidence
Oklahoma City, OK, United StatesHQ checked Sep 5, 20261,001-5,0003,787

“Global Payments Inc.(NYSE: GPN), a leading worldwide provider of payment technology and software solutions, announced the unification of its technology stack under a single brand…”

Source: company website · checked Sep 5, 2026
12
DeluxePartial evidence
Minneapolis, MN, United StatesHQ checked Sep 5, 20265,001-10,0003,695

“Deluxe, a trusted payments and data company, champions business so communities thrive.”

Source: company website · checked Sep 5, 2026
13
ElavonIndirect evidence
Atlanta, GA, United StatesHQ checked Sep 5, 20261,001-5,0002,885

“Elavon, a wholly owned subsidiary of U.S.”

Source: company website · checked Sep 5, 2026
14
EuronetStrong evidence
Leawood, KS, United StatesHQ checked Sep 5, 202610001+2,884

“A global leader in payments processing and cross-border transactions, Euronet moves money in all the ways consumers and businesses depend upon.”

Source: company website · checked Sep 5, 2026
15
BottomlineIndirect evidence
Portsmouth, NH, United StatesHQ checked Sep 5, 20261,001-5,0002,548

“At Bottomline, we help businesses pay and get paid.”

Source: company website · checked Sep 5, 2026
16
Incomm PaymentsPartial evidence
Atlanta, GA, United StatesHQ checked Sep 5, 20261,001-5,0002,409

“InComm Payments is an innovative global payments technology provider.”

Source: company website · checked Sep 5, 2026
17
Shift4Indirect evidence
Center Valley, PA, United StatesHQ checked Sep 5, 20261,001-5,0002,138

“Shift4 (NYSE: FOUR) powers the experience economy, enabling businesses to deliver the moments that matter.”

Source: company website · checked Sep 5, 2026
18
FleetcorIndirect evidence
Atlanta, GA, United StatesHQ checked Sep 5, 20265,001-10,0001,589

“FLEETCOR Technologies rebranded as Corpay on March 25, 2024.”

Source: company website · checked Sep 5, 2026
19
PayrocStrong evidence
Tinley Park, IL, United StatesHQ checked Sep 5, 20261,001-5,000953

“Payroc is a high-growth, multi-national payments platform, merchant acquirer, and processing powerhouse processing over $93 billion in annual volume for more than merchants.”

Source: company website · checked Sep 5, 2026
20
Aurus INCPartial evidence
Norwood, MA, United StatesHQ checked Sep 5, 2026501-1,000931

“Aurus is a certified payment gateway enabling seamless, secure transactions across in-store, online, and mobile channels.”

Source: company website · checked Sep 5, 2026
21
Epay, A Euronet CompanyStrong evidence
Leawood, KS, United StatesHQ checked Sep 5, 2026501-1,000890

“epay, a segment of Euronet, Inc.(NASDAQ:EEFT), is a leading global provider of payment processing and prepaid solutions that processed more than 4.6 billion transactions in 2025.”

Source: company website · checked Sep 5, 2026
22
CPI Card GroupPartial evidence
Littleton, CO, United StatesHQ checked Sep 5, 20261,001-5,000743

“CPI Card Group (NYSE:PMTS) is a payments technology company that is integral to the payments ecosystem.”

Source: company website · checked Sep 5, 2026
23
Hacked By JahidsecIndirect evidence
Riverwoods, IL, United StatesHQ checked Sep 5, 2026n/a700
Source: company website · checked Sep 5, 2026
24
FreedompayStrong evidence
Philadelphia, PA, United StatesHQ checked Sep 5, 2026501-1,000546

“The FreedomPay Commerce Platform is the best way for merchants to simplify complex payment environments.”

Source: company website · checked Sep 5, 2026
25
Wholesale PaymentsStrong evidence
Lubbock, TX, United StatesHQ checked Sep 5, 2026201-500483

“Founded in 2007, Wholesale Payments is one of the nation's largest privately held merchant services providers, providing credit card processing, POS solutions, and…”

Source: company website · checked Sep 5, 2026

Showing 25 of 2,608 payment processing platforms based in the United States

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Payment processing platforms based in the United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 119 HQs
75,687Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
1,076
11-50
980
51-200
368
201-500
98
501-1,000
30
1,001-5,000
27
5,001-10,000
8
10001+
12

Verified emails by last verification

0–30
76,986
31–60
5,349
61–90
115
90–180
53
180+
1,122

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 payment processing platforms, 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 “payment processing platforms”. 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 payment processing platforms, 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, 83,625 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 5, 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 payment processing platforms are there based in the United States?

RevenueBase identified 2,608 payment processing platforms 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 payment processing platforms?

New York leads with 119 headquartered companies, followed by Miami (57) and Los Angeles (50).

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 83,625 verified decision-maker contacts tracked across these 2,608 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,608 payment processing platforms based in the United States. Start with a free account, no credit card.

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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.