Company lists · Data refreshed November 2026

Top 25 Invoice and payment software developers based in the United States

RevenueBase identified 188 company matches for invoice and payment software developers associated with the United States as of November 2026 and tracks 5,315 professional contacts across them, including 1,229 with verified work emails. San Francisco is the largest hub.

This list covers company matches for invoice and payment software developers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
188Companies
5,315Contacts tracked
1,229Verified emails
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The 25 largest invoice and payment software developers based in the United States

Ranked by team size
Top 25 of 188 company matches for invoice and payment software developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAuburn, GA, United StatesHQ recorded Nov 5, 20261,001-5,000717 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchNashville, TN, United StatesHQ recorded Nov 5, 2026201-500306 contacts →

Exact match

“Celero Commerce offers payment processing services, business management software, and data intelligence to small and medium-sized businesses, in one holistic platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-200108 contacts →

Exact match

“Trusted by more than 1M businesses in over 100 countries, Veem is the market leader in automating accounts payables and receivables for businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchOrlando, FL, United StatesHQ recorded Nov 5, 202651-20094 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchTampa, FL, United StatesHQ recorded Nov 5, 202651-20084 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLos Angeles, CA, United StatesHQ recorded Nov 5, 202651-20071 contacts →

Exact match

“Symtrax delivers solutions that streamline AP/AR processing, ensure compliance, and integrate seamlessly with the ERP systems of mid-sized and large companies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchTampa, FL, United StatesHQ recorded Nov 5, 202651-20069 contacts →

Exact match

“Payzli is the payments partner for established ISOs, agents, and ISVs - the operators who are done being nickel-and-dimed and done watching peers lose their book in a buyout.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-20063 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchDenver, CO, United StatesHQ recorded Nov 5, 202651-20053 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBoynton Beach, FL, United StatesHQ recorded Nov 5, 202611-5044 contacts →

Exact match

“Service First Processing (SFP) provides modern payment and financial automation solutions designed to help businesses simplify how money moves through their organization.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Nov 5, 2026501-1,00037 contacts →

Exact match

“Purpose-built, public sector payments software, now part of Euna Solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchRocklin, CA, United StatesHQ recorded Nov 5, 202651-20035 contacts →

Exact match

“HostBooks transforms and enriches your accounting experience through its structured and automated cloud-based accounting platform.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchTampa, FL, United StatesHQ recorded Nov 5, 20261-1022 contacts →

Exact match

“We are a mobile invoice-management application for small businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchPittsburgh, PA, United StatesHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“eServices Technology is an innovative, agile software company built on the entrepreneurial spirit, providing digital payment solutions for first responders, nonprofits, schools…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchIrvine, CA, United StatesHQ recorded Nov 5, 2026201-50019 contacts →

Exact match

“Denefits is a business payment software platform built to help companies make it easier for customers to move forward.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchMinneapolis, MN, United StatesHQ recorded Nov 5, 20261-1018 contacts →

Exact match

“Get paid faster in recurring billing or a subscription-based business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchRedwood City, CA, United StatesHQ recorded Nov 5, 202651-20018 contacts →

Exact match

“Invoice2go from BILL is a mobile invoicing solution that helps small business owners run and grow their business their way.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchOverland Park, KS, United StatesHQ recorded Nov 5, 20261,001-5,00013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“We help small and medium business owners to create professionally looking invoices, e-sign contracts, pay their freelancers and organize their accounting and taxes - all in one…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchWestlake Village, CA, United StatesHQ recorded Nov 5, 202651-20011 contacts →

Exact match

“Cforia is a trusted accounts receivable digital transformation partner to global firms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchClearwater, FL, United StatesHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Gulf Management Systems offers fast, affordable payment solutions for any business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Slant is a forward-thinking software company specializing in cutting-edge restaurant billing solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchFargo, ND, United StatesHQ recorded Nov 5, 202611-508 contacts →

Exact match

“ConnectBooster, a Kaseya company, is a software platform that eliminates monthly accounting tasks, slashes payment fees, and automatically cuts the time from sending invoices to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchTroy, MI, United StatesHQ recorded Nov 5, 2026501-1,0007 contacts →

Exact match

“Accept credit card payments on your iPhone, iPad or Android with Payanywhere Company Overview: Created by a multi-billion dollar credit card processing company with more than two…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 188 invoice and payment software developers based in the United States

See the full list, filter by size, metro and specialty, and access 1,229 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Invoice and payment software developers based in the United States at a glance

As of Nov 5, 2026
23.1%Verified-email coverage
28.3Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · San Francisco
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
106
11-50
55
51-200
18
201-500
2
501-1,000
2
1,001-5,000
4
5,001-10,000
1

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 188 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “invoice and payment software developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,229 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “invoice and payment software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many invoice and payment software developers are there based in the United States?

RevenueBase identified 188 company matches for invoice and payment software developers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Fullsteam tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most invoice and payment software developers?

San Francisco leads with 11 company records, followed by New York (10) and Atlanta (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,229 professional contacts with verified work emails tracked across these 188 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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.