Company lists · Data refreshed September 2026

Top 25 Accounting bpo firms based in the United States

Name: Accounting bpo firms 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 12,168 companies tracked

RevenueBase identified 12,168 accounting bpo firms headquartered in the United States as of September 2026 and tracks 86,237 professional contacts across them, including 29,949 with verified work emails and 27,466 with mobile numbers. New York is the largest hub.

This list covers accounting bpo firms 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

12,168Companies

86,237Contacts tracked

29,949Verified emails

27,466Mobile numbers

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The 25 largest accounting bpo firms based in the United States

Ranked by team size

Top 25 of 12,168 accounting bpo firms 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 bpo firms: 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	Stream Global Services	Partial evidence	Eagan, MN, United StatesHQ checked Sep 27, 2026	10001+	2,772 contacts →
	Partial evidence “Stream Global Services is a premium business process outsource (BPO) service provider specializing in customer relationship management solutions including sales, customer care…” Source: RevenueBase Database · checked Sep 27, 2026
2	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
3	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
4	Rehmann	Partial evidence	Troy, MI, United StatesHQ checked Sep 27, 2026	501-1,000	1,323 contacts →
	Partial 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
5	B Consulting	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	n/a	913 contacts →
	Indirect evidence “B Consulting provides a plug-and-play financial operations team for high-growth startups.” Source: RevenueBase Database · checked Sep 27, 2026
6	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
7	Bennett Thrasher	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	201-500	558 contacts →
	Indirect evidence “Bennett Thrasher provides proven guidance for financial confidence through premier tax, audit, advisory, and outsourcing solutions.” Source: RevenueBase Database · checked Sep 27, 2026
8	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
9	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
10	TSD Global	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 27, 2026	1,001-5,000	422 contacts →
	Indirect evidence “TeleServices Direct has been rebranded as TSD Global.” Source: RevenueBase Database · checked Sep 27, 2026
11	OKS Group	Partial evidence	Bala Cynwyd, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	416 contacts →
	Partial evidence “Founded in 1985, OKS Group provides customized BPO and LPO services to some of the world's largest and most demanding companies.” Source: RevenueBase Database · checked Sep 27, 2026
12	Supporting Strategies	Indirect evidence	Beverly, MA, United StatesHQ checked Sep 27, 2026	51-200	415 contacts →
	Indirect evidence “Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.” Source: RevenueBase Database · checked Sep 27, 2026
13	Global Agility Solutions	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	501-1,000	403 contacts →
	Partial evidence “Global Agility Solutions offers comprehensive onshore, offshore and hybrid Business Process Outsourcing (BPO) services and solutions focused on automating and advancing repeatable…” Source: RevenueBase Database · checked Sep 27, 2026
14	Outsource Partners International Alumni	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	397 contacts →
	Partial evidence “Outsource Partners International (OPI) is a professional services firm dedicated to the outsourcing of finance, accounting, and analytics business processes.” Source: RevenueBase Database · checked Sep 27, 2026
15	Escalon Services	Indirect evidence	Dover, DE, United StatesHQ checked Sep 27, 2026	1,001-5,000	367 contacts →
	Indirect evidence “If you’re like us, you’re in business to do what you love, build great products, teams, and customer relationships.” Source: RevenueBase Database · checked Sep 27, 2026
16	Bench Accounting By Mainstreet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	201-500	366 contacts →
	Indirect evidence “At Bench by Mainstreet, we believe small business owners deserve more than just software - they deserve real financial support.” Source: RevenueBase Database · checked Sep 27, 2026
17	Clark Nuber PS	Partial evidence	Bellevue, WA, United StatesHQ checked Sep 27, 2026	201-500	347 contacts →
	Partial evidence “Clark Nuber is an award-winning Certified Public Accounting firm located in the Seattle Metro Area.” Source: RevenueBase Database · checked Sep 27, 2026
18	OHI	Partial evidence	New York, United StatesHQ checked Sep 27, 2026	201-500	339 contacts →
	Partial evidence “OHI is a specialized finance and real estate accounting outsourcing service provider with operations out of New Delhi (India) since 2006.” Source: RevenueBase Database · checked Sep 27, 2026
19	Makosi	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	324 contacts →
	Partial evidence “For over 15 years, Makosi has been redefining what’s possible in the accounting and audit industry with cutting-edge, tech-powered workforce solutions.” Source: RevenueBase Database · checked Sep 27, 2026
20	SVA A Professional Services Company	Indirect evidence	Madison, WI, United StatesHQ checked Sep 27, 2026	201-500	323 contacts →
	Indirect evidence “Listed below are the two entities that make up SVA, a highly diversified, independent professional services firm.” Source: RevenueBase Database · checked Sep 27, 2026
21	Unison Globus	Partial evidence	Coral Springs, FL, United StatesHQ checked Sep 27, 2026	201-500	320 contacts →
	Partial evidence “Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Source: RevenueBase Database · checked Sep 27, 2026
22	Montpac	Partial evidence	Granite Bay, CA, United StatesHQ checked Sep 27, 2026	201-500	298 contacts →
	Partial evidence “Montgomery Pacific Corporation (MontPac) is an outsourced accounting and financial management firm with personnel in the US, UK, and the Philippines.” Source: RevenueBase Database · checked Sep 27, 2026
23	Larsonallen	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 27, 2026	1,001-5,000	287 contacts →
	Indirect evidence “Effective January 2, 2012, LarsonAllen and Clifton Gunderson are now CliftonLarsonAllen.” Source: RevenueBase Database · checked Sep 27, 2026
24	Miller Kaplan	Indirect evidence	Burbank, CA, United StatesHQ checked Sep 27, 2026	201-500	282 contacts →
	Indirect evidence “Listen, then advise.” Source: RevenueBase Database · checked Sep 27, 2026
25	Gursey Schneider LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	201-500	261 contacts →
	Partial evidence “Gursey \| Schneider LLP is a premier Los Angeles accounting firm headquartered in Century City, the center of the financial and entertainment community.” 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 bpo firms. 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 bpo firms.
Partial evidence: Its own public description names part of accounting bpo firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting bpo firms. 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 12,168 accounting bpo firms based in the United States

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Accounting bpo firms based in the United States at a glance

As of Sep 27, 2026

34.7%Verified-email coverage

31.8%Mobile-number coverage

7.1Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

9,461

11-50

2,073

51-200

448

201-500

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

16,4490–30

12,48131–60

82961–90

3290–180

158180+

Company record updated

Median 90.0d

00–30

16,08831–60

29,03161–90

35,90290–180

5,216180+

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 bpo firms, 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 bpo firms”. 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 bpo firms), 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 bpo firms, 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, 29,949 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 bpo firms 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 bpo firms, 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 bpo firms are there based in the United States?

RevenueBase identified 12,168 accounting bpo firms 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?

Stream Global Services, headquartered in Eagan, tops this list with the largest team on record.

Which city has the most accounting bpo firms?

New York leads with 310 headquartered companies, followed by Houston (206) and Los Angeles (196).

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 29,949 verified decision-maker contacts tracked across these 12,168 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.