Company lists · Data refreshed September 2026

Top 25 Online billing platforms based in the United States

RevenueBase identified 174 online billing platforms headquartered in the United States as of September 2026 and tracks 7,941 professional contacts across them, including 4,081 with verified work emails and 2,153 with mobile numbers. New York is the largest hub.

This list covers online billing 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
174Companies
7,941Contacts tracked
4,081Verified emails
2,153Mobile numbers
Unlock all 174 companies Free signup · no credit card · 500 free credits

The 25 largest online billing platforms based in the United States

Ranked by team size
Top 25 of 174 online billing platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names online billing platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
ZUORAIndirect evidence
Redwood City, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,497

“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: company website · checked Sep 5, 2026
2
ChargebeePartial evidence
North Bethesda, MD, United StatesHQ checked Sep 5, 20261,001-5,0001,214

“Over a decade ago, four friends set out to tackle the growing complexities of SaaS billing.”

Source: company website · checked Sep 5, 2026
3
PaymentusPartial evidence
Charlotte, NC, United StatesHQ checked Sep 5, 20261,001-5,000935

“Paymentus® (NYSE: PAY) is the leading provider of real-time, cloud-based billing, payment, and customer engagement solutions.”

Source: company website · checked Sep 5, 2026
4
MELIOIndirect evidence
New York, United StatesHQ checked Sep 5, 2026501-1,000652

“Join over businesses simplifying bill payments and optimizing cash flow with Melio.”

Source: company website · checked Sep 5, 2026
5
Stax PaymentsPartial evidence
Orlando, FL, United StatesHQ checked Sep 5, 2026201-500295

“Stax Payments is a leading, high-growth payments technology firm specializing in integrated payments, recurring billing, and SMB processing.”

Source: company website · checked Sep 5, 2026
6
Aria SystemsIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 5, 2026201-500242

“In today’s on-demand world, enterprises need the agility to adapt at market speed.”

Source: company website · checked Sep 5, 2026
7
Matrixx SoftwarePartial evidence
Foster City, CA, United StatesHQ checked Sep 5, 2026201-500229

“MATRIXX Software delivers a dynamic billing, monetization and charging solution proven at scale.”

Source: company website · checked Sep 5, 2026
8
EbizchargePartial evidence
Irvine, CA, United StatesHQ checked Sep 5, 2026201-500210

“EBizCharge is the leading all-in-one integrated payment platform that helps businesses facilitate electronic payment processing, enhance transaction security, and increase client…”

Source: company website · checked Sep 5, 2026
9
BillgoIndirect evidence
Fort Collins, CO, United StatesHQ checked Sep 5, 202651-200194

“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: company website · checked Sep 5, 2026
10
rev.ioPartial evidence
Atlanta, GA, United StatesHQ checked Sep 5, 202651-200192

“Rev.io is the only provider to seamlessly integrate native communication billing, professional service automation (PSA), and payment processing-delivering a comprehensive…”

Source: company website · checked Sep 5, 2026
11
2checkoutIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026201-500121

“2Checkout is the digital commerce & payments provider that helps companies sell their products and services via multiple channels, acquire customers across multiple touch points…”

Source: company website · checked Sep 5, 2026
12
BlulogixPartial evidence
Mclean, VA, United StatesHQ checked Sep 5, 202651-20072

“Founded in 2013, BluLogix is the only billing solution provider that refines a business’s complex billing operations into a single process.”

Source: company website · checked Sep 5, 2026
13
AnchorIndirect evidence
New York, United StatesHQ checked Sep 5, 202651-20066

“Anchor gets businesses paid on time, effortlessly.”

Source: company website · checked Sep 5, 2026
14
Skyline PaymentsIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 5, 202651-20056

“Skyline Payments powers B2B transactions for small and midsize businesses, directly integrating payments into ERP, accounting, and eCommerce systems.”

Source: company website · checked Sep 5, 2026
15
PaysimpleIndirect evidence
Denver, CO, United StatesHQ checked Sep 5, 202651-20053

“Businesses come to PaySimple with a simple, but important need – a better way to accept payments.”

Source: company website · checked Sep 5, 2026
16
Dodo PaymentsStrong evidence
Dover, United StatesHQ checked Sep 5, 202651-20046

“Dodo Payments is a global Payments & Billing platform helping SaaS and AI-native businesses scale across 150+ countries.”

Source: company website · checked Sep 5, 2026
17
BNG PaymentsIndirect evidence
Fargo, ND, United StatesHQ checked Sep 5, 202651-20046

“BNG Payments is now part of Kaseya, the leading security and IT management company.”

Source: company website · checked Sep 5, 2026
18
DeferitPartial evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20045

“Deferit is a bill budgeting and payment platform that has helped more than people get on top of their bills.”

Source: company website · checked Sep 5, 2026
19
PaygroundPartial evidence
Gilbert, AZ, United StatesHQ checked Sep 5, 202611-5038

“PayGround makes paying and tracking bills online painless.”

Source: company website · checked Sep 5, 2026
20New York, NY, United StatesHQ checked Sep 5, 202651-20038

“Transactis transforms traditional paper billing and payment processing by enabling businesses of all sizes to replace paper bills, statements, invoices, payments and documents…”

Source: company website · checked Sep 5, 2026
21
KansysPartial evidence
Olathe, KS, United StatesHQ checked Sep 5, 202651-20036

“Kansys is a provider of billing software and services that help communications and enterprise businesses monetize complex business at scale.”

Source: company website · checked Sep 5, 2026
22
VCI Vericheck ACHPartial evidence
Atlanta, GA, United StatesHQ checked Sep 5, 202611-5030

“VeriCheck provides electronic payment processing both as a platform to software developers, and as "out-of-the-box" solution to businesses and organizations of all types who need…”

Source: company website · checked Sep 5, 2026
23
SubscriptPartial evidence
San Francisco, United StatesHQ checked Sep 5, 202611-5029

“It's time to wave goodbye to old-school billing and analytics software.”

Source: company website · checked Sep 5, 2026
24
AdminahealthStrong evidence
Old Greenwich, CT, United StatesHQ checked Sep 5, 202611-5029

“AdminaHealth is a cloud-based provider of a powerful industry-recognized SaaS Billing Suite Platform for the employee benefits and insurance marketplace - automating invoice…”

Source: company website · checked Sep 5, 2026
25
MonetizenowStrong evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 202611-5025

“Unified CPQ, Billing, and Metering Platform for the Modern B2B SaaS Enterprise.”

Source: company website · checked Sep 5, 2026

Showing 25 of 174 online billing platforms based in the United States

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Online billing platforms based in the United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 17 HQs
2,153Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
78
11-50
51
51-200
31
201-500
6
501-1,000
5
1,001-5,000
3

Verified emails by last verification

0–30
3,810
31–60
243
61–90
2
90–180
2
180+
24

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 online billing platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “online billing platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among online billing 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 an evidence 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, 4,081 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 5, 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

How many online billing platforms are there based in the United States?

RevenueBase identified 174 online billing 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?

ZUORA, headquartered in Redwood City, tops this list with the largest team on record.

Which city has the most online billing platforms?

New York leads with 17 headquartered companies, followed by San Francisco (13) and Los Angeles (6).

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 4,081 verified decision-maker contacts tracked across these 174 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 5, 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 SmartSearch, 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.