Company lists · Data refreshed September 2026

Top 25 SaaS payment processing companies based in the United States

Name: SaaS payment processing 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 29, 2026 988 companies tracked

RevenueBase identified 988 SaaS payment processing companies headquartered in the United States as of September 2026 and tracks 60,160 professional contacts across them, including 27,848 with verified work emails. New York is the largest hub.

This list covers SaaS payment processing 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 29, 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 29, 2026 86% judged on-target in blind review

988Companies

60,160Contacts tracked

27,848Verified emails

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The 25 largest SaaS payment processing companies based in the United States

Ranked by team size

Top 25 of 988 SaaS payment processing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to SaaS payment processing 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	Stripe	Indirect evidence	South San Francisco, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	13,124 contacts →
	Indirect evidence “Stripe builds programmable financial services.” Source: RevenueBase Database · checked Sep 29, 2026
2	Global Payments INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 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 29, 2026
3	Worldpay	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 29, 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 29, 2026
4	Elavon	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,885 contacts →
	Indirect evidence “Elavon, a wholly owned subsidiary of U.S.” Source: RevenueBase Database · checked Sep 29, 2026
5	Bottomline	Indirect evidence	Portsmouth, NH, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,548 contacts →
	Indirect evidence “At Bottomline, we help businesses pay and get paid.” Source: RevenueBase Database · checked Sep 29, 2026
6	Fleetcor	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	5,001-10,000	1,589 contacts →
	Indirect evidence “FLEETCOR Technologies rebranded as Corpay on March 25, 2024.” Source: RevenueBase Database · checked Sep 29, 2026
7	ZUORA	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,497 contacts →
	Indirect evidence “Zuora was born out of a vision that we could evangelize a fundamentally new way of doing business by shifting the focus of companies to deliver recurring, people-centric services…” Source: RevenueBase Database · checked Sep 29, 2026
8	Freedompay	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 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 29, 2026
9	Catalis	Strong evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	501-1,000	530 contacts →
	Strong evidence “Catalis is the transformational SaaS and integrated payments partner powering all levels and sizes of government – municipalities, counties, states, and federal agencies.” Source: RevenueBase Database · checked Sep 29, 2026
10	NMI	Partial evidence	Schaumburg, IL, United StatesHQ checked Sep 29, 2026	201-500	461 contacts →
	Partial evidence “NMI is powering the next generation of embedded payments with its modular payment acceptance platform and industry-leading gateway.” Source: RevenueBase Database · checked Sep 29, 2026
11	Vizypay	Strong evidence	Waukee, IA, United StatesHQ checked Sep 29, 2026	51-200	327 contacts →
	Strong 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 29, 2026
12	Celero Commerce	Strong evidence	Nashville, TN, United StatesHQ checked Sep 29, 2026	201-500	313 contacts →
	Strong evidence “Celero Commerce offers payment processing services, business management software, and data intelligence to small and medium-sized businesses, in one holistic platform.” Source: RevenueBase Database · checked Sep 29, 2026
13	Paystack	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 29, 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 29, 2026
14	Echelon Payments	Partial evidence	Melville, NY, United StatesHQ checked Sep 29, 2026	201-500	300 contacts →
	Partial evidence “Echelon Payment Solutions Group Built by sales partners, for sales partners-merchant by merchant.” Source: RevenueBase Database · checked Sep 29, 2026
15	TALUS	Strong evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	51-200	299 contacts →
	Strong evidence “Talus is the premier choice for small business payment processing.” Source: RevenueBase Database · checked Sep 29, 2026
16	Stax Payments	Strong evidence	Orlando, FL, United StatesHQ checked Sep 29, 2026	201-500	295 contacts →
	Strong 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 29, 2026
17	Aria Systems	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	242 contacts →
	Indirect evidence “In today’s on-demand world, enterprises need the agility to adapt at market speed.” Source: RevenueBase Database · checked Sep 29, 2026
18	Integral Development Corp	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 29, 2026	201-500	240 contacts →
	Partial evidence “Integral to leading the SaaS revolution.” Source: RevenueBase Database · checked Sep 29, 2026
19	Slice Merchant Services	Strong evidence	Holmdel, NJ, United StatesHQ checked Sep 29, 2026	201-500	217 contacts →
	Strong 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 29, 2026
20	Ebizcharge	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	201-500	210 contacts →
	Strong 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 29, 2026
21	PAYA	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 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 29, 2026
22	rev.io	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	51-200	192 contacts →
	Strong evidence “Rev.io is the only provider to seamlessly integrate native communication billing, professional service automation (PSA), and payment processing-delivering a comprehensive…” Source: RevenueBase Database · checked Sep 29, 2026
23	Global Payex	Strong evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	51-200	189 contacts →
	Strong evidence “Global PayEX is a B2B payments modernization-focused SaaS company which offers AI powered cloud platform for working capital optimization in B2B AR (accounts receivable) & AP…” Source: RevenueBase Database · checked Sep 29, 2026
24	Payjunction	Partial evidence	Santa Barbara, CA, United StatesHQ checked Sep 29, 2026	51-200	172 contacts →
	Partial evidence “PayJunction helps businesses and software companies accept payments with ease in-store, online, and on-the-go.” Source: RevenueBase Database · checked Sep 29, 2026
25	FINIX	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	51-200	169 contacts →
	Partial evidence “Finix is a payment processor that makes it easy for software platforms, marketplaces, and individual businesses of all sizes to accept payments and send money while maximizing…” Source: RevenueBase Database · checked Sep 29, 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: SaaS payment processing 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 SaaS payment processing companies.
Partial evidence: Its own public description names part of SaaS payment processing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name SaaS payment processing 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 988 SaaS payment processing companies based in the United States

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SaaS payment processing companies based in the United States at a glance

As of Sep 29, 2026

46.3%Verified-email coverage

60.9Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

426

11-50

342

51-200

159

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 988 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 SaaS payment processing 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 “SaaS payment processing 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 SaaS payment processing 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 SaaS payment processing 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, 27,848 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 29, 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.

SaaS payment processing companies by metro

SaaS payment processing companies in New York47

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 SaaS payment processing 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 SaaS payment processing companies are there based in the United States?

RevenueBase identified 988 SaaS payment processing 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?

Stripe, headquartered in South San Francisco, tops this list with the largest team on record.

Which city has the most SaaS payment processing companies?

New York leads with 47 headquartered companies, followed by Miami (22) and Atlanta (19).

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 27,848 verified decision-maker contacts tracked across these 988 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 29, 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.