Company lists · Data refreshed September 2026

Top 25 Invoice processing outsourcing services based in the United States

RevenueBase identified 106 company matches for invoice processing outsourcing services associated with the United States as of September 2026 and tracks 3,404 professional contacts across them, including 540 with verified work emails. Atlanta is the largest hub.

This list covers company matches for invoice processing outsourcing services 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 September 28, 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 Sep 28, 2026 How this list was built
106Companies
3,404Contacts tracked
540Verified emails
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The 25 largest invoice processing outsourcing services based in the United States

Ranked by team size
Top 25 of 106 company matches for invoice processing outsourcing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchSan Francisco, CA, United StatesHQ recorded Sep 28, 2026501-1,000359 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchPlano, TX, United StatesHQ recorded Sep 28, 2026501-1,000298 contacts →

Exact match

“At Circulus, we provide Product and Service Offerings designed to Optimize, Augment, and Automate AP Processes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-200207 contacts →

Exact match

“Nanonets agents understand key details in files – like invoices, POs, BoL & clinical documents – work through complex processes and act with transparency, making them the most…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchSt. Louis, MO, United StatesHQ recorded Sep 28, 202651-200124 contacts →

Exact match

“Since 1994, DataServ has delivered Accounts Payable invoice automation solutions that enable accounting teams to eliminate data entry, increase accuracy, and focus on higher-value…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchPortland, OR, United StatesHQ recorded Sep 28, 202651-20075 contacts →

Exact match

“Symbeo helps businesses everywhere build efficiencies between payors and payees for corporate accounts payable (AP) business-to-business transactions with true AP automation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLos Angeles, CA, United StatesHQ recorded Sep 28, 202651-20075 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 · Sep 28, 2026 · View company records in RevenueBase
7Exact matchAliso Viejo, United StatesHQ recorded Sep 28, 202651-20057 contacts →

Exact match

“Transcepta automates the AP process, end to end.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 28, 2026201-50051 contacts →

Exact match

“Your Quiet Advantage”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchTampa, FL, United StatesHQ recorded Sep 28, 202651-20050 contacts →

Exact match

“At Mondo Solutions, we specialize in top-tier process outsourcing, including Full revenue cycle Recruitment Process Outsourcing (RPO, Business Process Outsourcing (BPO), CPO…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchPortland, OR, United StatesHQ recorded Sep 28, 202651-20045 contacts →

Exact match

“Ascend is a leading provider of Accounts Payable (AP) automation solutions for medium and large enterprises in the cloud.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchNew Rochelle, NY, United StatesHQ recorded Sep 28, 2026201-50044 contacts →

Exact match

“Reckon Data Solutions is constant outsourcing solution for Title Insurance, Appraisal, Freight, BPO, Insurance, Accounting & Finance back office services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchBrentwood, TN, United StatesHQ recorded Sep 28, 202611-5036 contacts →

Exact match

“LBMC W Squared provides outsourced solutions including finance & accounting, accounts receivable, and accounts payable.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchIrvine, CA, United StatesHQ recorded Sep 28, 202611-5032 contacts →

Exact match

“Emendate is Leading Freight Invoice Verification and Payment Company with its presence all over the globe.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchMount Laurel, NJ, United StatesHQ recorded Sep 28, 202651-20029 contacts →

Exact match

“About Conversion Technologies International, Inc.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202651-20028 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchKirkland, WA, United StatesHQ recorded Sep 28, 20261-1027 contacts →

Exact match

“Accumatic simplifies your accounting processes while increasing accuracy at the same time.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchNorwood, MA, United StatesHQ recorded Sep 28, 202611-5026 contacts →

Exact match

“SX Business Services is an outsourced accounting company based out of 661 Pleasant Street Norwood, MA, United States.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“CashLine manages the entire accounts receivable process so our customers can focus on running their business instead of chasing payments.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchCharlotte, NC, United StatesHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“With over 30 years of expertise, Digital Designs is a leader in Document Management, Accounts Payable Automation and Electronic Payment solutions that streamline traditional paper…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchBoca Raton, United StatesHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“The CMS Group provides process, call center and IT solutions designed to generate revenues, increase and maximize cash flow, reduce operating expenses and recover cash…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchDublin, MA, United StatesHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“PLANERGY is revolutionizing Procurement & Invoice Processing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Automatic Funds Transfer Services (AFTS) provides outsourced solutions related to billing and statement printing, coupon book manufacturing, mailing and related payment processing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchGranger, IN, United StatesHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“Easy Access is an industry leader in Accounts Payable automation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchAgoura Hills, United StatesHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“CTP Solutions, Inc.(CTP) Delivers Efficiencies to Critical Document Processing as a business process outsourcing (BPO) solutions provider.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchAliso Viejo, CA, United StatesHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“DocuPhase, a leading provider of business process and accounting automation, document management, data capture, and payments technologies acquired iPayables in March 2023.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 106 invoice processing outsourcing services based in the United States

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Invoice processing outsourcing services based in the United States at a glance

As of Sep 28, 2026
15.9%Verified-email coverage
32.1Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Atlanta
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
43
51-200
20
201-500
8
501-1,000
4
1,001-5,000
1
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 106 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 processing outsourcing services” 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 540 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 September 28, 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 processing outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many invoice processing outsourcing services are there based in the United States?

RevenueBase identified 106 company matches for invoice processing outsourcing services associated with the United States as of September 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?

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

Which city has the most invoice processing outsourcing services?

Atlanta leads with 3 company records, followed by Los Angeles (3) and Seattle (3).

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 540 professional contacts with verified work emails tracked across these 106 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 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 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.