Company lists · Data refreshed September 2026
Top 25 Invoice and expense software companies based in the United States
RevenueBase identified 86 invoice and expense software companies headquartered in the United States as of September 2026 and tracks 9,821 professional contacts across them, including 3,064 with verified work emails. San Francisco is the largest hub.
This list covers invoice and expense 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.
The 25 largest invoice and expense software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,014 contacts → | ||||
Strong evidence “SAP Concur is the world’s leading brand for integrated travel, expense, and invoice management solutions, driven by a relentless pursuit to simplify and automate these everyday…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 400 contacts → | ||||
Strong evidence “American Express Global Business Travel (Amex GBT) is a leading software and services company for travel, expense, and meetings & events.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 216 contacts → | ||||
Strong evidence “Expensify helps 15 million people worldwide track expenses, book travel, reimburse employees, manage corporate cards, send invoices, and pay bills-all in one place.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 147 contacts → | ||||
Indirect evidence “Corpay One is a leading spend management solution for scaling businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 92 contacts → | ||||
Partial evidence “For small businesses and sole proprietorships in need of fast and accurate document reduction and spending management solutions, The Neat Company provides a cloud-based expense…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 25 contacts → | ||||
Partial evidence “Who we are… Gorilla Expense is run by an experienced management team with a combined experience of more than 50 years in the T&E and Travel Management arena.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 23 contacts → | ||||
Indirect evidence “ABUKAI revolutionizes how companies conduct business with its ACTIONABLE BUSINESS PRODUCTIVITY solutions, based on new business thinking, simpler user interfaces and supported by…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Partial evidence “We are a mobile invoice-management application for small businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 contacts → | ||||
Indirect evidence “Certify is now Emburse.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Partial evidence “eBillity's Time Tracker was created to help companies like yours track time and expenses from anywhere in the world, then easily sync with popular business apps like QuickBooks…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Indirect evidence “Introducing Mima Business Inc- Your Ultimate Business Management Solution!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 contacts → | ||||
Indirect evidence “Akounto, redefining the financial ecosystem for Small businesses, Freelancers, and Startups.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Partial evidence “ZarMoney isn’t your typical off-the-shelf accounting software – it was built carefully and meticulously through several years of development to be the next-generation cloud…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Partial evidence “InvoiceASAP is revolutionizing the business accounting and mobile services industries.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “Other invoice tools take 3%+ of your revenue.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “As a rapidly growing SaaS provider, Ariett’s Cloud Purchase to Pay platform, released in 2010, provides efficiency and cost savings to more than a mid-market and mid-enterprise…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Partial evidence “Genio is the premier e-invoice generator for small business owners and freelancers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “As a member of the Paychex family, Expensewire has evolved beyond simple expense tracking and reimbursement.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 and expense 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 invoice and expense software companies.
- Partial evidence
- Its own public description names part of invoice and expense software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name invoice and expense 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 86 invoice and expense software companies based in the United States
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Invoice and expense software companies based in the United States at a glance
As of Sep 28, 2026Companies by employee count
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 86 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 invoice and expense 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 “invoice and expense 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 invoice and expense 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 invoice and expense 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, 3,064 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 invoice and expense 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 invoice and expense software companies are there based in the United States?
RevenueBase identified 86 invoice and expense 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?
SAP Concur, headquartered in Bellevue, tops this list with the largest team on record.
Which city has the most invoice and expense software companies?
San Francisco leads with 7 headquartered companies, followed by New York (5) and Atlanta (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 3,064 verified decision-maker contacts tracked across these 86 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.
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