Skip to main content

Company lists · Data verified August 2026

Top 25 Back office outsourcing companies based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,410 companies tracked

There are 1,410 back office outsourcing companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 43,667 professional contacts across them, including 6,247 with verified work emails and 4,983 with mobile numbers. New York is the largest hub.

This list covers back office 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.

1,410Companies
43,667Contacts tracked
6,247Verified emails
4,983Mobile numbers
Unlock all 1,410 companies Free account · no credit card · 2 minutes

The 25 largest back office outsourcing companies based in the United States

Ranked by team size
Top 25 of 1,410 back office 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.
#CompanyHQEmployeesContactsVerified emails
1Advanced Call Center Technologies, LLCJohnson City, TN5,001-10,0002,779282
2SupportninjaAustin, TX1,001-5,0001,695547
3BroadpathTucson, AZ1,001-5,0001,271218
4SEBPOMarlton, NJ1,001-5,0001,249367
5Solvo Global CareersTomball, TX1,001-5,000934138
6Intelligent Image Management, Inc. Iimi USAHenderson, NV5,001-10,00091228
7Inktel Contact Center SolutionsDoral, FL1,001-5,000905113
8XtendopsSan Francisco, CA1,001-5,00088545
9AtidivNew York, NY501-1,000884240
10Premier NXNew Providence, NJ1,001-5,000544138
11SupportzebraHouston, TX1,001-5,00045299
12TSD GlobalEvansville, IN1,001-5,00042119
13OKS GroupBala Cynwyd, PA1,001-5,0004131
14Global Agility SolutionsAustin, TX501-1,00040059
15Outsource Partners International AlumniNew York, NY1,001-5,0003986
16Escalon ServicesSeattle, WA1,001-5,000372142
17Creative Lipi WebtechIselin, NJ501-1,00036813
18EDS Service SolutionsAtlanta, GA5,001-10,00033760
19Eplanet GlobalSalt Lake City, UT501-1,0003272
20Redial BPOSan Diego, CA501-1,00027915
21ONE Contact CenterVan Nuys, CA501-1,0002769
22Ardem IncorporatedNew York City, NY1,001-5,00027241
23Superstaff OutsourcingPittston, PA501-1,00019862
24Brigade CorporationChicago, IL1,001-5,0001804
25ARGOn/a1,001-5,00016718

Showing 25 of 1,410 back office outsourcing companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 6,247 reachable decision-makers.

Free account · no credit card

See all 1,410 companies

Back office outsourcing companies based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
New YorkLargest hub · 61 HQs
4,983Contacts with mobile numbers
29Emails re-verified in last 30 days

Companies by employee count

1-10
476
11-50
442
51-200
282
201-500
119
501-1,000
47
1,001-5,000
37
5,001-10,000
3

Back office outsourcing companies by metro

MetroCompanies
Back office outsourcing companies in New York61
Back office outsourcing companies in Miami38
Back office outsourcing companies in Austin33
Back office outsourcing companies in Houston32
Back office outsourcing companies in Sheridan26
Back office outsourcing companies in San Francisco22
Back office outsourcing companies in Los Angeles22

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 “back office 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; 29 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 back office outsourcing companies are there based in the United States?

There are 1,410 back office outsourcing companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Advanced Call Center Technologies, LLC, headquartered in Johnson City, tops this list with the largest team on record.

Which city has the most back office outsourcing companies?

New York leads with 61 headquartered companies, followed by Miami (38) and Austin (33).

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 6,247 verified decision-maker contacts tracked across these 1,410 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.

Ready to reach these companies? Verified emails and direct dials for all 1,410 back office outsourcing companies based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Browse: Companies home · All United States lists · All Back office outsourcing companies lists · New lists

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.

More company lists