Company lists · Data refreshed September 2026

Top 25 Outsourcing for accounting firms based in the United States

RevenueBase identified 13,610 company matches for outsourcing for accounting firms associated with the United States as of September 2026 and tracks 67,924 professional contacts across them, including 22,458 with verified work emails. New York is the largest hub.

This list covers company matches for outsourcing for accounting firms 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 21, 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 21, 2026 How this list was built
13,610Companies
67,924Contacts tracked
22,458Verified emails
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The 25 largest outsourcing for accounting firms based in the United States

Ranked by team size
Top 25 of 13,610 company matches for outsourcing for accounting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchAustin, TX, United StatesHQ recorded Sep 21, 202610001+2,231 contacts →

Exact match

“OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchIrving, TX, United StatesHQ recorded Sep 21, 2026201-500571 contacts →

Exact match

“Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchAtlanta, GA, United StatesHQ recorded Sep 21, 2026201-500558 contacts →

Exact match

“Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 21, 2026201-500482 contacts →

Exact match

“We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchBeverly, MA, United StatesHQ recorded Sep 21, 202651-200415 contacts →

Exact match

“Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 21, 20261,001-5,000397 contacts →

Exact match

“Outsource Partners International (OPI) is a professional services firm dedicated to the outsourcing of finance, accounting, and analytics business processes.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchDover, DE, United StatesHQ recorded Sep 21, 20261,001-5,000367 contacts →

Exact match

“If you’re like us, you’re in business to do what you love, build great products, teams, and customer relationships.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 2026201-500366 contacts →

Exact match

“At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchExton, PA, United StatesHQ recorded Sep 21, 2026501-1,000364 contacts →

Exact match

“Cohesive is a leading solutions provider and systems integrator for IBM Maximo.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchBellevue, WA, United StatesHQ recorded Sep 21, 2026201-500347 contacts →

Exact match

“Clark Nuber is an award-winning Certified Public Accounting firm located in the Seattle Metro Area.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchSterling, VA, United StatesHQ recorded Sep 21, 2026201-500347 contacts →

Exact match

“Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchNew York, United StatesHQ recorded Sep 21, 2026201-500339 contacts →

Exact match

“OHI is a specialized finance and real estate accounting outsourcing service provider with operations out of New Delhi (India) since 2006.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026201-500324 contacts →

Exact match

“For over 15 years, Makosi has been redefining what’s possible in the accounting and audit industry with cutting-edge, tech-powered workforce solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026201-500320 contacts →

Exact match

“1-800Accoutant is America’s leading virtual accounting firm for small businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchCoral Springs, FL, United StatesHQ recorded Sep 21, 2026201-500320 contacts →

Exact match

“Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchGranite Bay, CA, United StatesHQ recorded Sep 21, 2026201-500298 contacts →

Exact match

“Montgomery Pacific Corporation (MontPac) is an outsourced accounting and financial management firm with personnel in the US, UK, and the Philippines.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 21, 2026501-1,000269 contacts →

Exact match

“Growth exposes financial weakness.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchPortland, OR, United StatesHQ recorded Sep 21, 2026n/a257 contacts →

Exact match

“Kindercare Learing Center is an Accounting company located in 650 NE Holladay St # 1400, Portland, Oregon, United States.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026501-1,000252 contacts →

Exact match

“SAPRO is a global, tech-enabled talent outsourcing firm specializing in Assurance, Tax, Advisory, and Client Accounting Services (CAS).”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchSan Antonio, TX, United StatesHQ recorded Sep 21, 202651-200249 contacts →

Exact match

“The true performance of your business shouldn’t be a mystery.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchArtesia, CA, United StatesHQ recorded Sep 21, 2026n/a240 contacts →

Exact match

“We are a full-service Accounting firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Sep 21, 2026201-500239 contacts →

Exact match

“FinAdvantage is a tech-powered boutique finance and accounting operations firm offering a full suite of services for over a decade.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchRaleigh, NC, United StatesHQ recorded Sep 21, 2026201-500231 contacts →

Exact match

“Thomas, Judy and Tucker, P.A.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchIndianapolis, IN, United StatesHQ recorded Sep 21, 2026201-500217 contacts →

Exact match

“We’re building global careers for accounting professionals across the Philippines, South Africa and South America.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSeattle, WA, United StatesHQ recorded Sep 21, 2026501-1,000188 contacts →

Exact match

“ScalableOS is a premium offshore staffing partner offering custom solutions for MSPs and Tax & Accounting firms.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 13,610 outsourcing for accounting firms based in the United States

See the full list, filter by size, metro and specialty, and access 22,458 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourcing for accounting firms based in the United States at a glance

As of Sep 21, 2026
33.1%Verified-email coverage
5.0Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
10,994
11-50
2,124
51-200
332
201-500
55
501-1,000
12
1,001-5,000
12
5,001-10,000
1
10001+
3

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 13,610 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 “outsourcing for accounting firms” 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 22,458 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 21, 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.

Outsourcing for accounting firms by metro

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 “outsourcing for accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing for accounting firms are there based in the United States?

RevenueBase identified 13,610 company matches for outsourcing for accounting firms 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?

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

Which city has the most outsourcing for accounting firms?

New York leads with 330 company records, followed by Houston (231) and Los Angeles (174).

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 22,458 professional contacts with verified work emails tracked across these 13,610 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 21, 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.