Company lists · Data refreshed September 2026

Top 25 Customer support recruitment agencies worldwide

RevenueBase identified 10,140 customer support recruitment agencies worldwide as of September 2026 and tracks 255,552 professional contacts across them, including 26,708 with verified work emails. The United States is the largest market and London the largest hub.

This list covers customer support recruitment agencies worldwide, 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 28, 2026. Country and city lists for customer support recruitment agencies follow the table.

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 RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
10,140Companies
255,552Contacts tracked
26,708Verified emails
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The 25 largest customer support recruitment agencies worldwide

Ranked by team size
Top 25 of 10,140 customer support recruitment agencies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer support recruitment agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceGlendale, CA, United StatesHQ checked Sep 28, 20261,001-5,0004,627 contacts →

Indirect evidence

“AppleOne Employment Services is a full-service employment company.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20265,001-10,0004,342 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidencen/a5,001-10,0003,979 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceKolkata, IndiaHQ checked Sep 28, 20261,001-5,0003,346 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceDallas, TX, United StatesHQ checked Sep 28, 20261,001-5,0003,122 contacts →

Partial evidence

“Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceBerwyn, PA, United StatesHQ checked Sep 28, 20265,001-10,0002,774 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceUnited StatesHQ checked Sep 28, 202610001+2,388 contacts →

Indirect evidence

“Expert Global Solutions is now part of Alorica.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceGoiania, BrazilHQ checked Sep 28, 20265,001-10,0002,176 contacts →

Indirect evidence

“Somos a Tahto, uma empresa referência em soluções de CX e BPO.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026n/a2,026 contacts →

Strong evidence

“Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202610001+1,948 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0001,840 contacts →

Indirect evidence

“Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceBhopal, IndiaHQ checked Sep 28, 20261,001-5,0001,762 contacts →

Partial evidence

“Transforming Customer Experiences Worldwide** At Technotask, we've embarked on a journey of exponential growth and innovation since our inception in March 2020.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceTorino, ItalyHQ checked Sep 28, 2026501-1,0001,748 contacts →

Indirect evidence

“L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceBoca Raton, FL, United StatesHQ checked Sep 28, 20265,001-10,0001,741 contacts →

Indirect evidence

“Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.”

Source: RevenueBase Database · checked Sep 28, 2026
15Strong evidenceWaco, TX, United StatesHQ checked Sep 28, 20265,001-10,0001,710 contacts →

Strong evidence

“Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceBangalore, IndiaHQ checked Sep 28, 202610001+1,702 contacts →

Indirect evidence

“We are the largest IT staff augmentation provider in India, with employees spread across 500+ skill sets.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSanto André, BrazilHQ checked Sep 28, 2026n/a1,695 contacts →

Indirect evidence

“Durante os anos 80, o mundo testemunhou o surgimento de uma nova ordem.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceKarachi, PakistanHQ checked Sep 28, 20261,001-5,0001,609 contacts →

Indirect evidence

“Sybrid (Pvt) Ltd is Pakistan's leading technology solutions provider, helping businesses optimize their operations and drive growth.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceCincinnati, OH, United StatesHQ checked Sep 28, 20261,001-5,0001,484 contacts →

Partial evidence

“At RDI, we believe in winning smart by providing customized, strategic solutions to our clients.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0001,473 contacts →

Partial evidence

“Senture provides comprehensive contact center service support nationally.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceDurban, South AfricaHQ checked Sep 28, 20261,001-5,0001,453 contacts →

Indirect evidence

“One voice – let us be your voice.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 28, 20265,001-10,0001,386 contacts →

Indirect evidence

“System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceMadrid, SpainHQ checked Sep 28, 2026n/a1,306 contacts →

Partial evidence

“At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 2026501-1,0001,296 contacts →

Indirect evidence

“ASK Consulting is an award-winning technology and professional services recruiting firm servicing Fortune 500 organizations nationally.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceChennai, IndiaHQ checked Sep 28, 202610001+1,275 contacts →

Indirect evidence

“With buzzworks, find the right people with the right skills at the right time.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 10,140 customer support recruitment agencies worldwide

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Customer support recruitment agencies worldwide at a glance

As of Sep 28, 2026
10.5%Verified-email coverage
25.2Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
4,337
11-50
3,142
51-200
1,540
201-500
586
501-1,000
218
1,001-5,000
207
5,001-10,000
47
10001+
40

Email recency is reported on each country list linked below.

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 customer support recruitment agencies, 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.
Coverage
Every country. Country and city lists for customer support recruitment agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “customer support recruitment agencies”. 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 customer support recruitment agencies), 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 customer support recruitment agencies, and records with no verified work email.
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, 26,708 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 28, 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.

Customer support recruitment agencies by location

55 lists · largest first

Every Customer support recruitment agencies 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 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 customer support recruitment agencies, 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 customer support recruitment agencies are there worldwide?

RevenueBase identified 10,140 customer support recruitment agencies worldwide 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?

Appleone Employment Services, headquartered in Glendale, tops this list with the largest team on record.

Which country has the most customer support recruitment agencies?

The United States leads with 2,554 companies, followed by India (1,567) and the United Kingdom (737). Every customer support recruitment agencies list by country and city is linked on this page.

Which city has the most customer support recruitment agencies?

London leads with 213 headquartered companies, followed by Hyderabad (132) and Bangalore (119).

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 26,708 verified decision-maker contacts tracked across these 10,140 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 28, 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.