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.
The 25 largest online billing platforms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,497 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,214 | ||||
“Over a decade ago, four friends set out to tackle the growing complexities of SaaS billing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 935 | ||||
“Paymentus® (NYSE: PAY) is the leading provider of real-time, cloud-based billing, payment, and customer engagement solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 652 | ||||
“Join over businesses simplifying bill payments and optimizing cash flow with Melio.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 295 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 242 | ||||
“In today’s on-demand world, enterprises need the agility to adapt at market speed.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Matrixx SoftwarePartial evidence | 229 | |||
“MATRIXX Software delivers a dynamic billing, monetization and charging solution proven at scale.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 210 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 194 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 192 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 121 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 72 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 66 | ||||
“Anchor gets businesses paid on time, effortlessly.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 56 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 | ||||
“Businesses come to PaySimple with a simple, but important need – a better way to accept payments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 | ||||
“Dodo Payments is a global Payments & Billing platform helping SaaS and AI-native businesses scale across 150+ countries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 46 | ||||
“BNG Payments is now part of Kaseya, the leading security and IT management company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 45 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 38 | ||||
“PayGround makes paying and tracking bills online painless.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Transactis, A Mastercard CompanyPartial evidence | 38 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 22 | VCI Vericheck ACHPartial evidence | 30 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 23 | 29 | ||||
“It's time to wave goodbye to old-school billing and analytics software.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 29 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 25 | MonetizenowStrong evidence | 25 | |||
“Unified CPQ, Billing, and Metering Platform for the Modern B2B SaaS Enterprise.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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.
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