Company lists · Data verified August 2026

Top 25 Accounting outsourcing firms based in the United States

Name: Accounting outsourcing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 9,159 companies tracked

There are 9,159 accounting outsourcing firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 49,535 professional contacts across them, including 15,919 with verified work emails and 15,407 with mobile numbers. New York is the largest hub.

This list covers accounting outsourcing 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. Data current as of August 28, 2026.

9,159Companies

49,535Contacts tracked

15,919Verified emails

15,407Mobile numbers

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The 25 largest accounting outsourcing firms based in the United States

Ranked by team size

Top 25 of 9,159 accounting outsourcing firms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Information Evolution, INC	Austin, TX	201-500	1,231	94
2	Pacific Group Of Companies	Irvine, CA	1,001-5,000	801	49
3	KMK	Los Angeles, CA	1,001-5,000	612	192
4	Metriqe Solutions	Irving, TX	201-500	571	103
5	Bennett Thrasher	Denver, CO	201-500	546	442
6	NOW CFO	Fresno, CA	201-500	488	243
7	Outsource Partners International Alumni	New York, NY	1,001-5,000	398	6
8	Escalon Services	Seattle, WA	1,001-5,000	372	142
9	Makosi	New York, NY	201-500	340	125
10	Unison Globus	Coral Springs, FL	201-500	325	133
11	Montpac	Granite Bay, CA	201-500	294	150
12	SAPRO	New York, NY	501-1,000	259	80
13	Oremus Corporate Services	Crawfordsville, IN	201-500	258	52
14	TJT	Wilmington, NC	201-500	229	161
15	Tickmarks, INC	Reston, VA	201-500	203	74
16	Larson Gross	Yakima, WA	201-500	183	136
17	Indinero	Los Angeles	201-500	179	79
18	Infinity Globus, A Springline Company	Dallas, TX	201-500	173	86
19	Siglo BPO	Miami, FL	501-1,000	151	6
20	Meru Accounting	Ocala, FL	201-500	149	4
21	Mize Cpas INC	Topeka, KS	1,001-5,000	143	109
22	Sourcein	New York, NY	201-500	143	80
23	Glocal Accounting	Delaware, DE	501-1,000	115	36
24	Pacific Accounting & Business Services INC	Irvine, CA	1,001-5,000	97	55
25	Entigrity	Sugar Land, TX	1,001-5,000	97	46

Showing 25 of 9,159 accounting outsourcing firms based in the United States

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Accounting outsourcing firms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 237 HQs

15,407Contacts with mobile numbers

107Emails re-verified in last 30 days

Companies by employee count

1-10

7,472

11-50

1,324

51-200

245

201-500

501-1,000

1,001-5,000

5,001-10,000

Accounting outsourcing firms by metro

Metro	Companies
Accounting outsourcing firms in New York	237
Accounting outsourcing firms in Houston	171
Accounting outsourcing firms in Los Angeles	148
Accounting outsourcing firms in Austin	108
Accounting outsourcing firms in Atlanta	102
Accounting outsourcing firms in Miami	95
Accounting outsourcing firms in Chicago	91

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting outsourcing firms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 107 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 9,159 accounting outsourcing firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Information Evolution, INC, headquartered in Austin, tops this list with the largest team on record.

Which city has the most accounting outsourcing firms?

New York leads with 237 headquartered companies, followed by Houston (171) and Los Angeles (148).

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 15,919 verified decision-maker contacts tracked across these 9,159 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.