Company lists · Data verified August 2026

Top 25 Accounting services outsourcing companies based in the United States

Name: Accounting services outsourcing companies 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 12,216 companies tracked

There are 12,216 accounting services outsourcing companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 57,585 professional contacts across them, including 18,423 with verified work emails and 18,541 with mobile numbers. New York is the largest hub.

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

12,216Companies

57,585Contacts tracked

18,423Verified emails

18,541Mobile numbers

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The 25 largest accounting services outsourcing companies based in the United States

Ranked by team size

Top 25 of 12,216 accounting services outsourcing companies 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	Pacific Group Of Companies	Irvine, CA	1,001-5,000	801	49
2	KMK	Los Angeles, CA	1,001-5,000	612	192
3	Metriqe Solutions	Irving, TX	201-500	571	103
4	Bennett Thrasher	Denver, CO	201-500	546	442
5	NOW CFO	Fresno, CA	201-500	488	243
6	Outsource Partners International Alumni	New York, NY	1,001-5,000	398	6
7	Bench Accounting By Mainstreet	San Francisco, CA	201-500	376	80
8	Advantage ONE TAX Consulting	Sterling, VA	201-500	348	12
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	Mayatax	Houston, TX	501-1,000	268	68
13	SAPRO	New York, NY	501-1,000	259	80
14	Oremus Corporate Services	Crawfordsville, IN	201-500	258	52
15	TJT	Wilmington, NC	201-500	229	161
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 12,216 accounting services outsourcing companies based in the United States

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Accounting services outsourcing companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 277 HQs

18,541Contacts with mobile numbers

132Emails re-verified in last 30 days

Companies by employee count

1-10

9,804

11-50

1,919

51-200

301

201-500

501-1,000

1,001-5,000

10001+

Accounting services outsourcing companies by metro

Metro	Companies
Accounting services outsourcing companies in New York	277
Accounting services outsourcing companies in Houston	209
Accounting services outsourcing companies in Los Angeles	164
Accounting services outsourcing companies in Atlanta	121
Accounting services outsourcing companies in Miami	120
Accounting services outsourcing companies in Austin	118
Accounting services outsourcing companies in Chicago	117

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 services outsourcing companies”, 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; 132 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 services outsourcing companies are there based in the United States?

There are 12,216 accounting services outsourcing companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Pacific Group Of Companies, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most accounting services outsourcing companies?

New York leads with 277 headquartered companies, followed by Houston (209) and Los Angeles (164).

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 18,423 verified decision-maker contacts tracked across these 12,216 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.