Company lists · Data refreshed September 2026

Top 25 Invoice payment platforms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 356 companies tracked

RevenueBase identified 356 invoice payment platforms headquartered in the United States as of September 2026 and tracks 11,650 professional contacts across them, including 4,146 with verified work emails and 4,417 with mobile numbers. New York is the largest hub.

This list covers invoice payment 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 4, 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 4, 2026 86% judged on-target in blind review

356Companies

11,650Contacts tracked

4,146Verified emails

4,417Mobile numbers

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The 25 largest invoice payment platforms based in the United States

Ranked by team size

Top 25 of 356 invoice payment platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to invoice payment platforms: 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	RAMP	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,101 contacts →
	Partial evidence “Ramp is an all-in-one financial operations platform designed to save businesses time and money.” Source: RevenueBase Database · checked Sep 4, 2026
2	MELIO	Partial evidence	New York, United StatesHQ checked Sep 4, 2026	501-1,000	655 contacts →
	Partial evidence “Join over businesses simplifying bill payments and optimizing cash flow with Melio.” Source: RevenueBase Database · checked Sep 4, 2026
3	Versapay	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	201-500	382 contacts →
	Strong 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 4, 2026
4	Celero Commerce	Strong evidence	Nashville, TN, United StatesHQ checked Sep 4, 2026	201-500	310 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 4, 2026
5	Stax Payments	Partial evidence	Orlando, FL, United StatesHQ checked Sep 4, 2026	201-500	291 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 4, 2026
6	Slice Merchant Services	Indirect evidence	Holmdel, NJ, United StatesHQ checked Sep 4, 2026	201-500	219 contacts →
	Indirect evidence “We will position your company to take advantage of a variety of services to navigate today’s diverse business environment.” Source: RevenueBase Database · checked Sep 4, 2026
7	Ebizcharge	Strong evidence	Irvine, CA, United StatesHQ checked Sep 4, 2026	201-500	205 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 4, 2026
8	Billgo	Partial evidence	Fort Collins, CO, United StatesHQ checked Sep 4, 2026	51-200	192 contacts →
	Partial evidence “BillGO combines flexible bill pay technology with the only open biller network that accepts both consumer and business payments to power simple, friction-free bill pay experiences…” Source: RevenueBase Database · checked Sep 4, 2026
9	Payjunction	Partial evidence	Santa Barbara, CA, United StatesHQ checked Sep 4, 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 4, 2026
10	FINIX	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	171 contacts →
	Strong 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 4, 2026
11	Merchante	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	201-500	152 contacts →
	Partial evidence “MerchantE provides a financial technology platform that drives digital commerce and supports the money management needs of growing businesses.” Source: RevenueBase Database · checked Sep 4, 2026
12	Spreedly	Partial evidence	Durham, NC, United StatesHQ checked Sep 4, 2026	51-200	133 contacts →
	Partial evidence “Build best-in-market payment systems by connecting to any payment service.” Source: RevenueBase Database · checked Sep 4, 2026
13	Connexpay	Strong evidence	Plano, GA, United StatesHQ checked Sep 4, 2026	51-200	125 contacts →
	Strong evidence “ConnexPay is the first and only company to bring together the two sides of the payment process-payments acceptance and virtual payments issuing-into a single platform with one…” Source: RevenueBase Database · checked Sep 4, 2026
14	Balance	Partial evidence	New York, United StatesHQ checked Sep 4, 2026	51-200	108 contacts →
	Partial evidence “250 Promising Fintechs 2022 & 2021 - CB Insights * 57 Most Exciting Fintechs - Business insider *#1 in Payments & Commerce - Visa and Citi Backed by the best of fintech, Balance…” Source: RevenueBase Database · checked Sep 4, 2026
15	Mineraltree, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 4, 2026	51-200	101 contacts →
	Partial evidence “MineralTree provides the easiest to use Accounts Payable (AP) and Payment Automation solutions for finance professionals.” Source: RevenueBase Database · checked Sep 4, 2026
16	MOOV	Partial evidence	Cedar Falls, IA, United StatesHQ checked Sep 4, 2026	51-200	98 contacts →
	Partial evidence “Moov makes it easy for businesses to accept, store, send, and spend – all in one platform.” Source: RevenueBase Database · checked Sep 4, 2026
17	Bill360	Strong evidence	Tampa, FL, United StatesHQ checked Sep 4, 2026	51-200	97 contacts →
	Strong evidence “Get paid an average of 36% faster than your existing accounts receivable (AR) processes with the only AR automation and digital invoicing platform built for B2B companies.” Source: RevenueBase Database · checked Sep 4, 2026
18	Dwolla	Partial evidence	Des Moines, IA, United StatesHQ checked Sep 4, 2026	51-200	86 contacts →
	Partial evidence “Dwolla enables businesses to digitally transform their payments through a single solution.” Source: RevenueBase Database · checked Sep 4, 2026
19	Routable	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	84 contacts →
	Partial evidence “Routable is a payout orchestration platform that enables companies to automate, manage, and scale payouts globally through a developer-first API, compliance infrastructure, and…” Source: RevenueBase Database · checked Sep 4, 2026
20	Biller Genie	Partial evidence	Orlando, FL, United StatesHQ checked Sep 4, 2026	51-200	83 contacts →
	Partial evidence “At Biller Genie, we are a team of dreamers on a mission to provide an automated, cloud-based accounts receivable platform that seamlessly integrates existing business processes…” Source: RevenueBase Database · checked Sep 4, 2026
21	Segpay	Strong evidence	Deerfield Beach, FL, United StatesHQ checked Sep 4, 2026	51-200	77 contacts →
	Strong evidence “Segpay is a global payment platform, offering custom solutions including payment facilitator, direct merchant accounts and secure online payment gateway services.” Source: RevenueBase Database · checked Sep 4, 2026
22	United Tranzactions	Partial evidence	Miramar, FL, United StatesHQ checked Sep 4, 2026	51-200	76 contacts →
	Partial evidence “United TranzActions (UTA) is a trusted industry leader providing comprehensive payment processing and digital payment solutions to thousands of businesses across the U.S.” Source: RevenueBase Database · checked Sep 4, 2026
23	Point & PAY	Partial evidence	Oldsmar, FL, United StatesHQ checked Sep 4, 2026	51-200	71 contacts →
	Partial evidence “Point & Pay delivers secure, cloud-based payment solutions built for government.” Source: RevenueBase Database · checked Sep 4, 2026
24	Finexio	Strong evidence	Orlando, FL, United StatesHQ checked Sep 4, 2026	51-200	70 contacts →
	Strong evidence “Finexio is the only purpose-built platform for embedded payments and the only company that has an AI-backed $1MM payments fraud loss recovery solution for optimizing, monetizing…” Source: RevenueBase Database · checked Sep 4, 2026
25	ZIL Money	Strong evidence	San Jose, CA, United StatesHQ checked Sep 4, 2026	201-500	69 contacts →
	Strong evidence “Zil Money is a fintech platform built to simplify every payment a business makes.” Source: RevenueBase Database · checked Sep 4, 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 payment platforms. 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 payment platforms.
Partial evidence: Its own public description names part of invoice payment platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name invoice payment platforms. 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 356 invoice payment platforms based in the United States

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Invoice payment platforms based in the United States at a glance

As of Sep 4, 2026

35.6%Verified-email coverage

37.9%Mobile-number coverage

32.7Average contacts per company

11-50Median size (employees)

6.5%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

149

11-50

119

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

38031–60

2,20161–90

1,54390–180

22180+

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 payment platforms, 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 payment platforms”. 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 payment platforms), 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 payment 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 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, 4,146 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 4, 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

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 payment platforms, 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 payment platforms are there based in the United States?

RevenueBase identified 356 invoice payment 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?

RAMP, headquartered in New York, tops this list with the largest team on record.

Which city has the most invoice payment platforms?

New York leads with 23 headquartered companies, followed by San Francisco (21) and Atlanta (11).

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 4,146 verified decision-maker contacts tracked across these 356 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 4, 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.