Company lists · Data refreshed September 2026

Top 25 Client success recruiting agencies worldwide

RevenueBase identified 41,034 client success recruiting agencies worldwide as of September 2026 and tracks 572,486 professional contacts across them, including 93,739 with verified work emails. The United States is the largest market and London the largest hub.

This list covers client success recruiting 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 27, 2026. Country and city lists for client success recruiting 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
41,034Companies
572,486Contacts tracked
93,739Verified emails
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The 25 largest client success recruiting agencies worldwide

Ranked by team size
Top 25 of 41,034 client success recruiting agencies worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to client success recruiting 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 evidenceMenlo Park, CA, United StatesHQ checked Sep 27, 202610001+25,574 contacts →

Indirect evidence

“At Robert Half, we prioritize your security-if you believe you've encountered a scam or fraudulent recruiter, please report it immediately to All Robert Half recruiters…”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20265,001-10,00022,731 contacts →

Indirect evidence

“At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 27, 2026n/a15,553 contacts →

Indirect evidence

“Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceGlendale, CA, United StatesHQ checked Sep 27, 20261,001-5,0004,627 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261,001-5,0004,423 contacts →

Indirect evidence

“Robert Walters is the world’s most trusted talent solutions business.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceAtlanta, GA, United StatesHQ checked Sep 27, 202610001+4,263 contacts →

Partial evidence

“We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceBoston, MA, United StatesHQ checked Sep 27, 20261,001-5,0003,238 contacts →

Indirect evidence

“Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceMilano, ItalyHQ checked Sep 27, 20261,001-5,0003,105 contacts →

Indirect evidence

“Crediamo nelle connessioni reali.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceChiyoda-ku, JapanHQ checked Sep 27, 20261,001-5,0003,098 contacts →

Indirect evidence

“With a legacy of over 50 years, we are not just a recruitment consultancy; we are the bridge that connects businesses with exceptional talent, fostering growth and innovation…”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 27, 202610001+1,948 contacts →

Partial 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 27, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026501-1,0001,927 contacts →

Indirect evidence

“Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceDublin 4, IrelandHQ checked Sep 27, 202610001+1,841 contacts →

Indirect evidence

“Cpl is a global provider of talent solutions to startup companies, multinationals, and SMEs in every sector from Pharmaceuticals to Fund Accounting.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceChicago, IL, United StatesHQ checked Sep 27, 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 27, 2026
14Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 27, 20261,001-5,0001,791 contacts →

Indirect evidence

“Yacht is dé organisatie van en voor professionals.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceTorino, ItalyHQ checked Sep 27, 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 27, 2026
16Indirect evidenceFresno, CA, United StatesHQ checked Sep 27, 2026501-1,0001,683 contacts →

Indirect evidence

“We make it all about you.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceColumbus, OH, United StatesHQ checked Sep 27, 20261,001-5,0001,622 contacts →

Indirect evidence

“For over 57 years, Surge has been a national leader in staffing solutions, workforce management and workforce program solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceMayfield Heights, OH, United StatesHQ checked Sep 27, 2026501-1,0001,599 contacts →

Indirect evidence

“Companies need talent.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidencePlymouth, MI, United StatesHQ checked Sep 27, 20261,001-5,0001,545 contacts →

Indirect evidence

“Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceAndover, MA, United StatesHQ checked Sep 27, 2026201-5001,480 contacts →

Indirect evidence

“ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 27, 2026n/a1,431 contacts →

Indirect evidence

“We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceToronto, ON, CanadaHQ checked Sep 27, 2026501-1,0001,428 contacts →

Indirect evidence

“Tundra is a global provider of innovative staffing solutions and services.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceChennai, IndiaHQ checked Sep 27, 2026501-1,0001,421 contacts →

Indirect evidence

“LIVE CONNECTIONS is a Search & Recruitment Organization that specializes in finding and placing professionals across all sectors.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 27, 2026n/a1,332 contacts →

Partial evidence

“LGC’s team is built by diverse individuals who are passionate about developing long-lasting relationships between clients and candidates.”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceToronto, ON, CanadaHQ checked Sep 27, 2026501-1,0001,326 contacts →

Indirect evidence

“As the Canadian leader in recruitment and HR, and one of Canada’s best places to work, we have a uniquely human approach to work.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 41,034 client success recruiting agencies worldwide

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Client success recruiting agencies worldwide at a glance

As of Sep 27, 2026
16.4%Verified-email coverage
14.0Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
25,767
11-50
10,394
51-200
3,218
201-500
909
501-1,000
339
1,001-5,000
245
5,001-10,000
40
10001+
75

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 client success recruiting 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 client success recruiting agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “client success recruiting 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 client success recruiting 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 client success recruiting 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, 93,739 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 27, 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.

Client success recruiting agencies by location

161 lists · largest first

Every Client success recruiting 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 client success recruiting 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 client success recruiting agencies are there worldwide?

RevenueBase identified 41,034 client success recruiting 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?

Robert Half, headquartered in Menlo Park, tops this list with the largest team on record.

Which country has the most client success recruiting agencies?

The United States leads with 11,806 companies, followed by India (4,496) and the United Kingdom (3,953). Every client success recruiting agencies list by country and city is linked on this page.

Which city has the most client success recruiting agencies?

London leads with 1347 headquartered companies, followed by New York (588) and Toronto (428).

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 93,739 verified decision-maker contacts tracked across these 41,034 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 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 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.