Company lists · Data refreshed September 2026

Top 25 Call center staffing companies worldwide

Name: Call center staffing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 12,206 companies tracked

RevenueBase identified 12,206 company matches for call center staffing companies worldwide as of September 2026 and tracks 326,622 professional contacts across them, including 35,840 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for call center staffing companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026. Country and city lists for call center staffing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built

12,206Companies

326,622Contacts tracked

35,840Verified emails

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The 25 largest call center staffing companies worldwide

Ranked by team size

Top 25 of 12,206 company matches for call center staffing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	8,522 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Appleone Employment Services	Exact match	Glendale, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	4,627 contacts →
	Exact match “AppleOne Employment Services is a full-service employment company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Continuum Global Solutions	Exact match	Dallas, TX, United StatesHQ recorded Sep 27, 2026	5,001-10,000	4,342 contacts →
	Exact match “With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Spherion	Exact match	Atlanta, GA, United StatesHQ recorded Sep 27, 2026	10001+	4,263 contacts →
	Exact match “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Sercom	Exact match	Taboão Da Serra, BrazilHQ recorded Sep 27, 2026	5,001-10,000	3,785 contacts →
	Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Elwood Staffing Services, INC	Exact match	Columbus, IN, United StatesHQ recorded Sep 27, 2026	n/a	3,481 contacts →
	Exact match “Whether you're looking to find your next great employee, make your next career move, or help a friend find a new job, you can trust that Elwood puts its passion and expertise into…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Teleperformance Global Services	Exact match	Kolkata, IndiaHQ recorded Sep 27, 2026	1,001-5,000	3,346 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Beacon Hill	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	3,238 contacts →
	Exact match “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	2,774 contacts →
	Exact match “Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Staff Management SMX	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	501-1,000	2,680 contacts →
	Exact match “Founded in 1988, Staff Management is a recognized leader of comprehensive workforce solutions that deliver best talent, drive compliance, yield tangible savings and build…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	CSI Companies	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 27, 2026	n/a	2,120 contacts →
	Exact match “Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Liveops, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 27, 2026	n/a	2,026 contacts →
	Exact match “Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Remedy Intelligent Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 27, 2026	10001+	1,948 contacts →
	Exact match “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Infocision Management Corporation	Exact match	Akron, OH, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,764 contacts →
	Exact match “InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Synergie Italia	Exact match	Torino, ItalyHQ recorded Sep 27, 2026	501-1,000	1,748 contacts →
	Exact match “L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Support Services Group	Exact match	Waco, TX, United StatesHQ recorded Sep 27, 2026	5,001-10,000	1,710 contacts →
	Exact match “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Magna Infotech	Exact match	Bangalore, IndiaHQ recorded Sep 27, 2026	10001+	1,702 contacts →
	Exact match “We are the largest IT staff augmentation provider in India, with employees spread across 500+ skill sets.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Global Empregos Ltda	Exact match	Santo André, BrazilHQ recorded Sep 27, 2026	n/a	1,695 contacts →
	Exact match “Durante os anos 80, o mundo testemunhou o surgimento de uma nova ordem.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Pridestaff	Exact match	Fresno, CA, United StatesHQ recorded Sep 27, 2026	501-1,000	1,683 contacts →
	Exact match “We make it all about you.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Surge Staffing	Exact match	Columbus, OH, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,622 contacts →
	Exact match “For over 57 years, Surge has been a national leader in staffing solutions, workforce management and workforce program solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Onin Staffing	Exact match	Birmingham, AL, United StatesHQ recorded Sep 27, 2026	10001+	1,614 contacts →
	Exact match “Ōnin Staffing, a company of The Ōnin Group, is a national light industrial and clerical staffing agency.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	RDI Corporation	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,484 contacts →
	Exact match “At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Senture, LLC	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	1,473 contacts →
	Exact match “Senture provides comprehensive contact center service support nationally.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Outworx Contact Centre	Exact match	Durban, South AfricaHQ recorded Sep 27, 2026	1,001-5,000	1,453 contacts →
	Exact match “One voice – let us be your voice.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Xinerlink	Exact match	Santiago, ChileHQ recorded Sep 27, 2026	5,001-10,000	1,422 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “call center staffing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 12,206 call center staffing companies worldwide

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Call center staffing companies worldwide at a glance

As of Sep 27, 2026

11.0%Verified-email coverage

26.8Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

4,727

11-50

3,614

51-200

2,109

201-500

873

501-1,000

373

1,001-5,000

345

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for call center staffing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “call center staffing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 35,840 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Call center staffing companies by location

55 lists · largest first

Every Call center staffing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “call center staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many call center staffing companies are there worldwide?

RevenueBase identified 12,206 company matches for call center staffing companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Randstad USA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most call center staffing companies?

The United States leads with 3,870 companies, followed by India (1,323) and the United Kingdom (542). Every call center staffing companies list by country and city is linked on this page.

Which city has the most call center staffing companies?

London leads with 128 company records, followed by New York (114) and Houston (111).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 35,840 professional contacts with verified work emails tracked across these 12,206 companies; direct dials are available where recorded.

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 SmartSearch, 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.