Company lists · Data refreshed September 2026

Top 25 Electronic invoicing software companies based in the United States

Name: Electronic invoicing software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 81 companies tracked

RevenueBase identified 81 electronic invoicing software companies headquartered in the United States as of September 2026 and tracks 1,099 professional contacts across them, including 255 with verified work emails. San Francisco is the largest hub.

This list covers electronic invoicing software companies 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 28, 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 28, 2026 86% judged on-target in blind review

81Companies

1,099Contacts tracked

255Verified emails

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The 25 largest electronic invoicing software companies based in the United States

Ranked by team size

Top 25 of 81 electronic invoicing software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to electronic invoicing software companies: 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	Tradeshift	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	359 contacts →
	Partial evidence “Leading AP automation software \| Reduce processing cost by 90%\| For large and mid-sized companies \| Our customers include DHL, Danone, HSBC, Kuehne + Nagel, and Air France KLM.” Source: RevenueBase Database · checked Sep 28, 2026
2	Bill360	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	51-200	100 contacts →
	Partial 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 28, 2026
3	Symtrax	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “Symtrax delivers solutions that streamline AP/AR processing, ensure compliance, and integrate seamlessly with the ERP systems of mid-sized and large companies.” Source: RevenueBase Database · checked Sep 28, 2026
4	Subscript	Partial evidence	San Francisco, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “It's time to wave goodbye to old-school billing and analytics software.” Source: RevenueBase Database · checked Sep 28, 2026
5	Conversion Technologies International, INC	Indirect evidence	Mount Laurel, NJ, United StatesHQ checked Sep 28, 2026	51-200	29 contacts →
	Indirect evidence “About Conversion Technologies International, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
6	Zapro AI	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “At Zapro, we are committed to revolutionizing the procurement and invoicing landscape by providing innovative, user-friendly, and reliable solutions for businesses of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
7	Invoice Home INC	Strong evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Strong evidence “Invoice Home is a leading invoice generating software designed for the invoicing needs of small businesses, freelancers, and entrepreneurs worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
8	Invoice Maker LLC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	23 contacts →
	Indirect evidence “We are a mobile invoice-management application for small businesses.” Source: RevenueBase Database · checked Sep 28, 2026
9	ESM Digital Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “ESM is a global technology consulting and RegTech company delivering SAP Consulting, Global E-Invoicing, Peppol connectivity, and digital compliance solutions.” Source: RevenueBase Database · checked Sep 28, 2026
10	Invoice2go	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 28, 2026	51-200	14 contacts →
	Partial evidence “Invoice2go from BILL is a mobile invoicing solution that helps small business owners run and grow their business their way.” Source: RevenueBase Database · checked Sep 28, 2026
11	Enerpact	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Strong evidence “Enerpact provides transformative electronic invoicing, business intelligence, well lifecycle management, and reporting solutions tailored to fit the unique needs of the upstream…” Source: RevenueBase Database · checked Sep 28, 2026
12	Skynova	Indirect evidence	West Chester, PA, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “Skynova is as SaaS company, established in 2011, providing web-based business tools to small businesses.” Source: RevenueBase Database · checked Sep 28, 2026
13	Connectbooster	Partial evidence	Fargo, ND, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
14	inly.com	Partial evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Inly is an invoicing and digital contract platform that allows you to send and manage your invoices in a simple, beautiful way.” Source: RevenueBase Database · checked Sep 28, 2026
15	Invoice Ninja	Partial evidence	Fort Myers, FL, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Invoice Ninja is a leading source-code available suite of apps focusing on SMB invoicing & payments.” Source: RevenueBase Database · checked Sep 28, 2026
16	Cloudbooks	Strong evidence	St. Petersburg, FL, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Strong evidence “Cloudbooks is an easy-to-use online invoicing software with time tracking that helps you send invoices for your projects and customer expenses, receive payments and track the…” Source: RevenueBase Database · checked Sep 28, 2026
17	Invoiceasap	Indirect evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “InvoiceASAP is revolutionizing the business accounting and mobile services industries.” Source: RevenueBase Database · checked Sep 28, 2026
18	Paybox Corp	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Paybox Corp an OSG Company is the leading provider of an innovative approach to automating enterprise-level solutions for accounts receivables and payables management.” Source: RevenueBase Database · checked Sep 28, 2026
19	Billment	Partial evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “A Billing and Payments solution that seamlessly integrates with your accounting software.” Source: RevenueBase Database · checked Sep 28, 2026
20	Invoicesherpa	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Inspired by our experience with countless businesses facing cash flow problems we knew there was a better way to get paid for their efforts.” Source: RevenueBase Database · checked Sep 28, 2026
21	Mallow	Indirect evidence	St. George, UT, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Other invoice tools take 3%+ of your revenue.” Source: RevenueBase Database · checked Sep 28, 2026
22	Invoiceiq	Partial evidence	Ponte Vedra Beach, FL, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Partial evidence “InvoiceIQ provides electronic invoice management solutions to Telecom Expense Management firms and their enterprise clients.” Source: RevenueBase Database · checked Sep 28, 2026
23	GENIO	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Genio is the premier e-invoice generator for small business owners and freelancers.” Source: RevenueBase Database · checked Sep 28, 2026
24	STAK	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Stak saves contractors 20+ hours a month on billing, and gets you live in under an hour.” Source: RevenueBase Database · checked Sep 28, 2026
25	Contact Telecom, LLC	Partial evidence	Manchester, NH, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Contact Telecom Software-as-a-Service delivers invoice processing service streamlines the time and effort to collect, track and validate your underlying expenses, from all your…” Source: RevenueBase Database · checked Sep 28, 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: electronic invoicing software companies. 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 electronic invoicing software companies.
Partial evidence: Its own public description names part of electronic invoicing software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electronic invoicing software companies. 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 81 electronic invoicing software companies based in the United States

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Electronic invoicing software companies based in the United States at a glance

As of Sep 28, 2026

23.2%Verified-email coverage

13.6Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · San Francisco

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 81 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 electronic invoicing software companies, 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 “electronic invoicing software companies”. 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 electronic invoicing software companies), 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 electronic invoicing software companies, 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, 255 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 28, 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 electronic invoicing software companies, 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 electronic invoicing software companies are there based in the United States?

RevenueBase identified 81 electronic invoicing software companies 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?

Tradeshift, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most electronic invoicing software companies?

San Francisco leads with 4 headquartered companies, followed by Houston (3) and Los Angeles (3).

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 255 verified decision-maker contacts tracked across these 81 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 28, 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.