Company lists · Data refreshed September 2026

Top 25 Invoice and payment solutions based in the United States

Name: Invoice and payment solutions based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,055 companies tracked

RevenueBase identified 1,055 invoice and payment solutions headquartered in the United States as of September 2026 and tracks 59,765 professional contacts across them, including 25,860 with verified work emails. New York is the largest hub.

This list covers invoice and payment solutions 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 20, 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 20, 2026 86% judged on-target in blind review

1,055Companies

59,765Contacts tracked

25,860Verified emails

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The 25 largest invoice and payment solutions based in the United States

Ranked by team size

Top 25 of 1,055 invoice and payment solutions based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to invoice and payment solutions: 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 20, 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 20, 2026
2	Worldpay	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 20, 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 20, 2026
3	Verifone	Partial evidence	New York, GA, United StatesHQ checked Sep 20, 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 20, 2026
4	Elavon	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,885 contacts →
	Indirect evidence “Elavon, a wholly owned subsidiary of U.S.” Source: RevenueBase Database · checked Sep 20, 2026
5	Bottomline	Indirect evidence	Portsmouth, NH, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,548 contacts →
	Indirect evidence “At Bottomline, we help businesses pay and get paid.” Source: RevenueBase Database · checked Sep 20, 2026
6	Shift4	Indirect evidence	Center Valley, PA, United StatesHQ checked Sep 20, 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 20, 2026
7	RAMP	Indirect evidence	New York, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,123 contacts →
	Indirect evidence “Ramp is an all-in-one financial operations platform designed to save businesses time and money.” Source: RevenueBase Database · checked Sep 20, 2026
8	Fleetcor	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	5,001-10,000	1,589 contacts →
	Indirect evidence “FLEETCOR Technologies rebranded as Corpay on March 25, 2024.” Source: RevenueBase Database · checked Sep 20, 2026
9	Flywire	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,194 contacts →
	Partial evidence “Flywire Corporation (Nasdaq: FLYW) is a global payments enablement and software company.” Source: RevenueBase Database · checked Sep 20, 2026
10	Paymentus	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 20, 2026	1,001-5,000	935 contacts →
	Strong evidence “Paymentus® (NYSE: PAY) is the leading provider of real-time, cloud-based billing, payment, and customer engagement solutions.” Source: RevenueBase Database · checked Sep 20, 2026
11	MELIO	Partial evidence	New York, United StatesHQ checked Sep 20, 2026	501-1,000	652 contacts →
	Partial evidence “Join over businesses simplifying bill payments and optimizing cash flow with Melio.” Source: RevenueBase Database · checked Sep 20, 2026
12	Fullsteam	Indirect evidence	Auburn, AL, United StatesHQ checked Sep 20, 2026	1,001-5,000	633 contacts →
	Indirect evidence “Backed by Aquiline Capital Partners and ADIA, Fullsteam is a dynamic and growing team of over 2,100 employees committed to driving innovation and delivering best-in-class software…” Source: RevenueBase Database · checked Sep 20, 2026
13	Freedompay	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 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 20, 2026
14	REPAY	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 20, 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 20, 2026
15	Versapay	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	201-500	389 contacts →
	Partial evidence “Versapay is the platform that rewires AR by removing barriers from collecting and reconciling B2B payments, providing end-to-end cash flow clarity, ensuring businesses can manage…” Source: RevenueBase Database · checked Sep 20, 2026
16	Vizypay	Strong evidence	Waukee, IA, United StatesHQ checked Sep 20, 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 20, 2026
17	Celero Commerce	Partial evidence	Nashville, TN, United StatesHQ checked Sep 20, 2026	201-500	313 contacts →
	Partial 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 20, 2026
18	Electronic Merchant Systems	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 20, 2026	201-500	306 contacts →
	Partial 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 20, 2026
19	Paystack	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 20, 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 20, 2026
20	TALUS	Partial evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	51-200	299 contacts →
	Partial evidence “Talus is the premier choice for small business payment processing.” Source: RevenueBase Database · checked Sep 20, 2026
21	Stax Payments	Partial evidence	Orlando, FL, United StatesHQ checked Sep 20, 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 20, 2026
22	Ccbill	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 20, 2026	201-500	293 contacts →
	Partial evidence “CCBill is a leading global payment processor and ecommerce provider.” Source: RevenueBase Database · checked Sep 20, 2026
23	Paystand	Partial evidence	Santa Cruz, CA, United StatesHQ checked Sep 20, 2026	201-500	241 contacts →
	Partial evidence “Paystand's on a mission to create a more open financial system, starting with B2B payments.” Source: RevenueBase Database · checked Sep 20, 2026
24	Transcentra	Partial evidence	Norcross, GA, United StatesHQ checked Sep 20, 2026	1,001-5,000	231 contacts →
	Partial evidence “TransCentra is one of the largest and most trusted billing and payments providers in the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
25	Slice Merchant Services	Strong evidence	Holmdel, NJ, United StatesHQ checked Sep 20, 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 20, 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: invoice and payment solutions. 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 invoice and payment solutions.
Partial evidence: Its own public description names part of invoice and payment solutions, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name invoice and payment solutions. 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 1,055 invoice and payment solutions based in the United States

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Invoice and payment solutions based in the United States at a glance

As of Sep 20, 2026

43.3%Verified-email coverage

56.6Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

445

11-50

358

51-200

168

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 1,055 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 invoice and payment solutions, 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 “invoice and payment solutions”. 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 invoice and payment solutions), 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 invoice and payment solutions, 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, 25,860 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 20, 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.

Invoice and payment solutions by metro

Invoice and payment solutions in New York43
Invoice and payment solutions in Atlanta27
Invoice and payment solutions in Miami25
Invoice and payment solutions in San Francisco25

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 invoice and payment solutions, 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 invoice and payment solutions are there based in the United States?

RevenueBase identified 1,055 invoice and payment solutions 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 invoice and payment solutions?

New York leads with 43 headquartered companies, followed by Atlanta (27) and Miami (25).

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 25,860 verified decision-maker contacts tracked across these 1,055 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 20, 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.