Company lists · Data refreshed September 2026

Top 25 Checkout technology companies based in the United States

Name: Checkout technology 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 19, 2026 773 companies tracked

RevenueBase identified 773 checkout technology companies headquartered in the United States as of September 2026 and tracks 44,242 professional contacts across them, including 19,155 with verified work emails. New York is the largest hub.

This list covers checkout technology 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 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

773Companies

44,242Contacts tracked

19,155Verified emails

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The 25 largest checkout technology companies based in the United States

Ranked by team size

Top 25 of 773 checkout technology companies 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 checkout technology 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	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
2	Square	Indirect evidence	San Francisco, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	6,194 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 19, 2026
3	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
4	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
5	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
6	Incomm Payments	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,409 contacts →
	Partial evidence “InComm Payments is an innovative global payments technology provider.” Source: RevenueBase Database · checked Sep 19, 2026
7	Shift4	Indirect evidence	Center Valley, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,138 contacts →
	Indirect evidence “Shift4 (NYSE: FOUR) powers the experience economy, enabling businesses to deliver the moments that matter.” Source: RevenueBase Database · checked Sep 19, 2026
8	Aurus INC	Indirect evidence	Norwood, MA, United StatesHQ checked Sep 19, 2026	501-1,000	931 contacts →
	Indirect 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
9	Freedompay	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	501-1,000	546 contacts →
	Indirect evidence “The FreedomPay Commerce Platform is the best way for merchants to simplify complex payment environments.” Source: RevenueBase Database · checked Sep 19, 2026
10	REPAY	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	201-500	430 contacts →
	Partial evidence “REPAY, established in 2006, is a full-service payment technology and processing provider that enables the expedient and secure collection of payments through any channel at any…” Source: RevenueBase Database · checked Sep 19, 2026
11	BOLT	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	424 contacts →
	Partial evidence “Bolt provides businesses with best-in-class customer conversion through seamless and secure one-click checkout.” Source: RevenueBase Database · checked Sep 19, 2026
12	Jetpay NOW NCR Payment Solutions	Indirect evidence	Allentown, United StatesHQ checked Sep 19, 2026	n/a	331 contacts →
	Indirect evidence “Acquired by NCR Corporation 12/2018.” Source: RevenueBase Database · checked Sep 19, 2026
13	Vizypay	Indirect evidence	Waukee, IA, United StatesHQ checked Sep 19, 2026	51-200	327 contacts →
	Indirect 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
14	PAX Technology, Inc. North America	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 19, 2026	201-500	319 contacts →
	Partial evidence “Founded in 2001, PAX Technology, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
15	POS Portal	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 19, 2026	201-500	271 contacts →
	Indirect evidence “POS Portal is all things Payments.” Source: RevenueBase Database · checked Sep 19, 2026
16	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
17	Paynearme	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	201-500	262 contacts →
	Partial evidence “PayNearMe builds technology to transform the payment experience for businesses and their customers.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ebizcharge	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	210 contacts →
	Indirect 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
19	PAYA	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	201-500	196 contacts →
	Indirect 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
20	Braintree	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	194 contacts →
	Indirect 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
21	Electronic Payments	Indirect evidence	Calverton, NY, United StatesHQ checked Sep 19, 2026	501-1,000	184 contacts →
	Indirect 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
22	Clai Payments Technologies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	176 contacts →
	Indirect evidence “We are experts in the supply of payment solutions for more than 30 years, owning 8 regional offices in the continent.” Source: RevenueBase Database · checked Sep 19, 2026
23	Payjunction	Indirect evidence	Santa Barbara, CA, United StatesHQ checked Sep 19, 2026	51-200	172 contacts →
	Indirect evidence “PayJunction helps businesses and software companies accept payments with ease in-store, online, and on-the-go.” Source: RevenueBase Database · checked Sep 19, 2026
24	Micamp Solutions	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	51-200	163 contacts →
	Partial evidence “A financial technology firm, MiCamp Solutions is a trusted, worldwide leader for secure payment processing solutions.” Source: RevenueBase Database · checked Sep 19, 2026
25	MBPS	Indirect evidence	Ronkonkoma, NY, United StatesHQ checked Sep 19, 2026	n/a	162 contacts →
	Indirect evidence “Welcome to MBPS We are Metropolitan Business Payment Solutions.” 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: checkout technology 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 checkout technology companies.
Partial evidence: Its own public description names part of checkout technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name checkout technology 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 773 checkout technology companies based in the United States

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Checkout technology companies based in the United States at a glance

As of Sep 19, 2026

43.3%Verified-email coverage

57.2Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

317

11-50

279

51-200

116

201-500

501-1,000

1,001-5,000

5,001-10,000

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 773 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 checkout technology 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 “checkout technology 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 checkout technology 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 checkout technology 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, 19,155 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.

Checkout technology companies by metro

Checkout technology companies in New York33

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 checkout technology 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 checkout technology companies are there based in the United States?

RevenueBase identified 773 checkout technology 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?

Worldpay, headquartered in Cincinnati, tops this list with the largest team on record.

Which city has the most checkout technology companies?

New York leads with 33 headquartered companies, followed by Los Angeles (19) and Miami (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 19,155 verified decision-maker contacts tracked across these 773 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.