Company lists · Data refreshed September 2026

Top 25 Api payment providers based in the United States

Name: Api payment providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,446 companies tracked

RevenueBase identified 1,446 api payment providers headquartered in the United States as of September 2026 and tracks 64,494 professional contacts across them, including 23,051 with verified work emails. New York is the largest hub.

This list covers api payment providers 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 19, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

1,446Companies

64,494Contacts tracked

23,051Verified emails

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The 25 largest api payment providers based in the United States

Ranked by team size

Top 25 of 1,446 api payment providers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to api payment providers: 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	Global Payments INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	10001+	11,147 contacts →
	Partial evidence “Global Payments (NYSE: GPN) is a leading payment technology and software company that powers commerce for businesses of all sizes worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
2	Worldpay	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 19, 2026	5,001-10,000	8,097 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
3	First Data Corporation	Indirect evidence	Brookfield, United StatesHQ checked Sep 19, 2026	10001+	6,608 contacts →
	Indirect evidence “First Data is now Fiserv (NASDAQ:FISV).” Source: RevenueBase Database · checked Sep 19, 2026
4	Verifone	Partial evidence	New York, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	4,303 contacts →
	Partial evidence “The world’s leading brands trust Verifone for global payments.” Source: RevenueBase Database · checked Sep 19, 2026
5	Heartland	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,787 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
6	Elavon	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,885 contacts →
	Indirect evidence “Elavon, a wholly owned subsidiary of U.S.” Source: RevenueBase Database · checked Sep 19, 2026
7	Bottomline	Indirect evidence	Portsmouth, NH, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,548 contacts →
	Indirect evidence “At Bottomline, we help businesses pay and get paid.” Source: RevenueBase Database · checked Sep 19, 2026
8	Payroc	Partial evidence	Tinley Park, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	953 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
9	Aurus INC	Partial evidence	Norwood, MA, United StatesHQ checked Sep 19, 2026	501-1,000	931 contacts →
	Partial evidence “Aurus is a certified payment gateway enabling seamless, secure transactions across in-store, online, and mobile channels.” Source: RevenueBase Database · checked Sep 19, 2026
10	Freedompay	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	501-1,000	546 contacts →
	Partial evidence “The FreedomPay Commerce Platform is the best way for merchants to simplify complex payment environments.” Source: RevenueBase Database · checked Sep 19, 2026
11	EVO Payments, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	434 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
12	Vizypay	Partial evidence	Waukee, IA, United StatesHQ checked Sep 19, 2026	51-200	327 contacts →
	Partial evidence “VizyPay is revolutionizing the payments industry by offering a credit card processing model that focuses on powerful payment solutions, real human customer support, and simple…” Source: RevenueBase Database · checked Sep 19, 2026
13	Electronic Merchant Systems	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 19, 2026	201-500	306 contacts →
	Indirect evidence “Our mission is to be the industry leader in merchant services by providing an innovative suite of business solutions, a high level of quality service, and having professional…” Source: RevenueBase Database · checked Sep 19, 2026
14	Paystack	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 19, 2026	51-200	300 contacts →
	Partial evidence “Over businesses trust Paystack to help accept online and offline payments from anyone, anywhere in the world.” Source: RevenueBase Database · checked Sep 19, 2026
15	TALUS	Partial evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	51-200	299 contacts →
	Partial evidence “Talus is the premier choice for small business payment processing.” Source: RevenueBase Database · checked Sep 19, 2026
16	Stax Payments	Partial evidence	Orlando, FL, United StatesHQ checked Sep 19, 2026	201-500	295 contacts →
	Partial evidence “Stax Payments is a leading, high-growth payments technology firm specializing in integrated payments, recurring billing, and SMB processing.” Source: RevenueBase Database · checked Sep 19, 2026
17	Ccbill	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 19, 2026	201-500	293 contacts →
	Partial evidence “CCBill is a leading global payment processor and ecommerce provider.” Source: RevenueBase Database · checked Sep 19, 2026
18	Cardconnect	Partial evidence	King Of Prussia, PA, United StatesHQ checked Sep 19, 2026	5,001-10,000	263 contacts →
	Partial evidence “CardConnect, a Fiserv company, is a leading payment technology provider empowering ISOs, agents, and businesses with innovative, secure, and scalable payment solutions.” Source: RevenueBase Database · checked Sep 19, 2026
19	Slice Merchant Services	Partial evidence	Holmdel, NJ, United StatesHQ checked Sep 19, 2026	201-500	217 contacts →
	Partial evidence “Payment Solutions for Every Business 0% Processing Fee Program POS Systems • Local Sales & Support Helping businesses save more with every transaction.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ebizcharge	Partial evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	210 contacts →
	Partial evidence “EBizCharge is the leading all-in-one integrated payment platform that helps businesses facilitate electronic payment processing, enhance transaction security, and increase client…” Source: RevenueBase Database · checked Sep 19, 2026
21	PAYA	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	201-500	196 contacts →
	Partial evidence “Paya, a Nuvei Company, is a leading provider of integrated payment and frictionless commerce solutions that help customers accept and make payments, expedite receipt of money, and…” Source: RevenueBase Database · checked Sep 19, 2026
22	Braintree	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	194 contacts →
	Partial evidence “Braintree enables merchants in more than 45 countries worldwide to accept and process payments in more than 130 currencies.” Source: RevenueBase Database · checked Sep 19, 2026
23	Bluesnap	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	193 contacts →
	Partial evidence “At BlueSnap, Powered by Payroc, we look at payments a little differently.” Source: RevenueBase Database · checked Sep 19, 2026
24	Electronic Payments	Partial evidence	Calverton, NY, United StatesHQ checked Sep 19, 2026	501-1,000	184 contacts →
	Partial evidence “Electronic Payments is an industry leader in developing and delivering innovative payment processing and point of sale solutions to companies nationwide.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ixopay	Partial evidence	Lehi, UT, United StatesHQ checked Sep 19, 2026	51-200	178 contacts →
	Partial evidence “IXOPAY is the enterprise-grade global payment orchestration platform built for the era of agentic commerce, equipping merchants and businesses with AI-driven intelligence…” Source: RevenueBase Database · checked Sep 19, 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: api payment providers. 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 payment providers.
Partial evidence: Its own public description names part of api payment providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name api payment providers. 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 1,446 api payment providers based in the United States

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Api payment providers based in the United States at a glance

As of Sep 19, 2026

35.7%Verified-email coverage

44.6Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

589

11-50

559

51-200

211

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,446 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 payment providers, 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 payment providers”. 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 payment providers), 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 payment providers, 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, 23,051 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 19, 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.

Api payment providers 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 api payment providers, 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 payment providers are there based in the United States?

RevenueBase identified 1,446 api payment providers 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?

Global Payments INC, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most api payment providers?

New York leads with 64 headquartered companies, followed by Los Angeles (31) 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 23,051 verified decision-maker contacts tracked across these 1,446 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 19, 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.