Company lists · Data refreshed September 2026

Top 25 Accounting firm business process outsourcing companies based in the United States

Name: Accounting firm business process outsourcing 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 27, 2026 17,505 companies tracked

RevenueBase identified 17,505 accounting firm business process outsourcing companies headquartered in the United States as of September 2026 and tracks 160,732 professional contacts across them, including 65,893 with verified work emails and 59,300 with mobile numbers. New York is the largest hub.

This list covers accounting firm business process outsourcing 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 27, 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 27, 2026 86% judged on-target in blind review

17,505Companies

160,732Contacts tracked

65,893Verified emails

59,300Mobile numbers

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The 25 largest accounting firm business process outsourcing companies based in the United States

Ranked by team size

Top 25 of 17,505 accounting firm business process outsourcing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firm business process outsourcing 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	Eisneramper	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	4,199 contacts →
	Indirect evidence “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Source: RevenueBase Database · checked Sep 27, 2026
2	Eide Bailly LLP	Partial evidence	United StatesHQ checked Sep 27, 2026	1,001-5,000	3,643 contacts →
	Partial evidence “We’re Eide Bailly (I’d bay-lee), a business advisory, accounting and technology firm built with our clients in mind.” Source: RevenueBase Database · checked Sep 27, 2026
3	Cherry Bekaert	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,824 contacts →
	Indirect evidence “Cherry Bekaert is a top-ranked U.S.” Source: RevenueBase Database · checked Sep 27, 2026
4	Personiv	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	10001+	2,231 contacts →
	Partial evidence “OUR PEOPLE, YOUR PRIORITIES Streamline your finance & accounting team at 50% cost savings with a team as small as one.” Source: RevenueBase Database · checked Sep 27, 2026
5	Carr, Riggs & Ingram	Partial evidence	Enterprise, AL, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,102 contacts →
	Partial evidence “Carr, Riggs & Ingram (CRI) is a Top 25 nationally-ranked accounting and advisory firm driven by relationships to cultivate growth.” Source: RevenueBase Database · checked Sep 27, 2026
6	Sikich	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,688 contacts →
	Indirect evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 27, 2026
7	Rehmann	Strong evidence	Troy, MI, United StatesHQ checked Sep 27, 2026	501-1,000	1,323 contacts →
	Strong evidence “Rehmann is a professional advisory firm that provides accounting and assurance, business solutions and outsourcing, specialized consulting, and wealth management services.” Source: RevenueBase Database · checked Sep 27, 2026
8	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 27, 2026
9	Riveron	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,160 contacts →
	Indirect evidence “With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.” Source: RevenueBase Database · checked Sep 27, 2026
10	Frank, Rimerman Co. LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 2026	501-1,000	893 contacts →
	Indirect evidence “Established in 1949, our firm is unique for its pervasive passion and nimble delivery of over 75 years of experience.” Source: RevenueBase Database · checked Sep 27, 2026
11	HCVT	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	501-1,000	877 contacts →
	Partial evidence “HCVT is Southern California’s leading public accounting firm, the largest headquartered in Los Angeles, and the third-largest in the Western U.S.” Source: RevenueBase Database · checked Sep 27, 2026
12	Cogneesol	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	870 contacts →
	Partial evidence “Cogneesol is a global professional services firm offering comprehensive bespoke and ready-to-deploy business process management solutions to help businesses optimize, innovate and…” Source: RevenueBase Database · checked Sep 27, 2026
13	Warren Averett	Partial evidence	Birmingham, AL, United StatesHQ checked Sep 27, 2026	501-1,000	844 contacts →
	Partial evidence “Warren Averett CPAs and Advisors is a top-tier accounting and advisory firm based in the Southeastern U.S, proudly ranking among the nation's top 50 firms.” Source: RevenueBase Database · checked Sep 27, 2026
14	Clark Schaefer Hackett	Partial evidence	Dayton, OH, United StatesHQ checked Sep 27, 2026	501-1,000	683 contacts →
	Partial evidence “Clark Schaefer Hackett is more than an accounting and advisory firm; we’re striving to be your most valued advisor.” Source: RevenueBase Database · checked Sep 27, 2026
15	Mauldin & Jenkins	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	501-1,000	650 contacts →
	Indirect evidence “Mauldin & Jenkins, LLC believes that by working together with our clients, we can accomplish anything!” Source: RevenueBase Database · checked Sep 27, 2026
16	Dean Dorton	Indirect evidence	Lexington, KY, United StatesHQ checked Sep 27, 2026	501-1,000	590 contacts →
	Indirect evidence “Dean Dorton provides an integrated suite of audit, tax, business management, consulting, and technology solutions.” Source: RevenueBase Database · checked Sep 27, 2026
17	Metriqe Solutions	Partial evidence	Irving, TX, United StatesHQ checked Sep 27, 2026	201-500	571 contacts →
	Partial evidence “Founded in 2007, Metriqe Solutions started out as a Hotel Accounting firm in USA.” Source: RevenueBase Database · checked Sep 27, 2026
18	Bennett Thrasher	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	201-500	558 contacts →
	Partial evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 27, 2026
19	Wolf & Company, P.C	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	201-500	558 contacts →
	Indirect evidence “Wolf & Company P.C.” Source: RevenueBase Database · checked Sep 27, 2026
20	Infosync	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 27, 2026	501-1,000	525 contacts →
	Indirect evidence “In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.” Source: RevenueBase Database · checked Sep 27, 2026
21	Miller Cooper & Co., LTD	Partial evidence	Deerfield, IL, United StatesHQ checked Sep 27, 2026	201-500	493 contacts →
	Partial evidence “Miller Cooper, the 10th largest accounting firm in Chicago, has proudly served entrepreneurial, middle market businesses since 1919.” Source: RevenueBase Database · checked Sep 27, 2026
22	Sensiba LLP	Partial evidence	San Jose, CA, United StatesHQ checked Sep 27, 2026	501-1,000	493 contacts →
	Partial evidence “Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Source: RevenueBase Database · checked Sep 27, 2026
23	Singerlewak LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	201-500	487 contacts →
	Partial evidence “SingerLewak has a 60-year history of serving clients as one of the leading West Coast based public accounting firms; SingerLewak understands the needs of business owners and…” Source: RevenueBase Database · checked Sep 27, 2026
24	NOW CFO	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 27, 2026	201-500	482 contacts →
	Indirect evidence “We specialize in providing full-service CFOs, controllers, and operational accountants to consult with our clients.” Source: RevenueBase Database · checked Sep 27, 2026
25	Prager Metis Cpas	Partial evidence	New York, United StatesHQ checked Sep 27, 2026	201-500	467 contacts →
	Partial evidence “Prager Metis CPAs is an independent, full service, public accounting and consulting firm.” Source: RevenueBase Database · checked Sep 27, 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: accounting firm business process outsourcing 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 accounting firm business process outsourcing companies.
Partial evidence: Its own public description names part of accounting firm business process outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting firm business process outsourcing 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 17,505 accounting firm business process outsourcing companies based in the United States

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Accounting firm business process outsourcing companies based in the United States at a glance

As of Sep 27, 2026

41.0%Verified-email coverage

36.9%Mobile-number coverage

9.2Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

12,709

11-50

3,681

51-200

766

201-500

136

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

32,4030–30

23,89331–60

1,66161–90

4490–180

255180+

Company record updated

Median 90.0d

00–30

31,86331–60

47,92261–90

49,60990–180

8,911180+

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 accounting firm business process outsourcing 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 “accounting firm business process outsourcing 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 accounting firm business process outsourcing 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 accounting firm business process outsourcing 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, 65,893 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 27, 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.

Accounting firm business process outsourcing companies by metro

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 accounting firm business process outsourcing 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 accounting firm business process outsourcing companies are there based in the United States?

RevenueBase identified 17,505 accounting firm business process outsourcing 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?

Eisneramper, headquartered in New York, tops this list with the largest team on record.

Which city has the most accounting firm business process outsourcing companies?

New York leads with 428 headquartered companies, followed by Houston (301) and Los Angeles (231).

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 65,893 verified decision-maker contacts tracked across these 17,505 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 27, 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.