Company lists · Data refreshed September 2026

Top 25 Executive search and interim placement companies worldwide

RevenueBase identified 44,466 executive search and interim placement companies worldwide as of September 2026 and tracks 1,070,919 professional contacts across them, including 191,875 with verified work emails and 169,488 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers executive search and interim placement companies 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 30, 2026. Country and city lists for executive search and interim placement companies 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 30, 2026 86% judged on-target in blind review
44,466Companies
1,070,919Contacts tracked
191,875Verified emails
169,488Mobile numbers
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The 25 largest executive search and interim placement companies worldwide

Ranked by team size
Top 25 of 44,466 executive search and interim placement companies worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to executive search and interim placement companies: 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
1Partial evidenceZurich, SwitzerlandHQ checked Sep 30, 202610001+141,230 contacts →

Partial evidence

“Perfect placements.”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 30, 202610001+27,063 contacts →

Indirect evidence

“ManpowerGroup® (NYSE: MAN), the leading global workforce solutions company, helps organizations transform in a fast-changing world of work by sourcing, assessing, developing and…”

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 30, 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 30, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 30, 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 30, 2026
5Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 30, 202610001+22,508 contacts →

Indirect evidence

“Manpower is the global leader in contingent and permanent recruitment workforce solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
6Partial evidenceAtlanta, GA, United StatesHQ checked Sep 30, 2026n/a15,553 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
7Partial evidenceOklahoma City, OK, United StatesHQ checked Sep 30, 202610001+12,647 contacts →

Partial evidence

“Founded in 1983 and corporately headquartered in Oklahoma City, Express Employment International supports the Express Employment Professionals franchise and related brands.”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceAddlestone, FranceHQ checked Sep 30, 20265,001-10,0009,475 contacts →

Indirect evidence

“Welcome to the Michael Page global company profile.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 30, 20261,001-5,0008,522 contacts →

Indirect evidence

“Randstad North America, Inc.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceLondon, GermanyHQ checked Sep 30, 20265,001-10,0006,874 contacts →

Indirect evidence

“We are people experts.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 30, 20261,001-5,0005,837 contacts →

Indirect evidence

“Reed is the largest family-run recruitment business in the world and we’ve been improving lives through work since 1960.”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 30, 20261,001-5,0004,831 contacts →

Indirect evidence

“Volt (an Innova Solutions affiliate) is a multi-award winning global workforce solutions provider that propels businesses and careers forward with expert momentum.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceGlendale, CA, United StatesHQ checked Sep 30, 20261,001-5,0004,627 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 30, 20261,001-5,0004,423 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 30, 202610001+4,263 contacts →

Indirect 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 30, 2026
16Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 30, 202610001+3,934 contacts →

Indirect evidence

“Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceMorristown, NJ, United StatesHQ checked Sep 30, 20265,001-10,0003,674 contacts →

Indirect evidence

“Artech is the largest Women-Owned IT Staffing Firm in the U.S, with 34+ years of experience powering workforce transformation for Fortune 500 companies and public-sector…”

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidencePuteaux, FranceHQ checked Sep 30, 20261,001-5,0003,619 contacts →

Indirect evidence

“Manpower France est une marque de ManpowerGroup France qui propose aux entreprises des solutions en matière de recrutement sous le label Conseil Recrutement et des solutions aux…”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceColumbus, IN, United StatesHQ checked Sep 30, 2026n/a3,481 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 30, 2026
20Strong evidenceChicago, IL, United StatesHQ checked Sep 30, 20261,001-5,0003,376 contacts →

Strong evidence

“Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.”

Source: RevenueBase Database · checked Sep 30, 2026
21Strong evidenceBoston, MA, United StatesHQ checked Sep 30, 20261,001-5,0003,238 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
22Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 30, 20265,001-10,0003,223 contacts →

Indirect evidence

“Randstad Enterprise is the leading global talent solutions provider, enabling companies to create sustainable business value and agility by keeping people at the heart of their…”

Source: RevenueBase Database · checked Sep 30, 2026
23Indirect evidenceAddlestone, United KingdomHQ checked Sep 30, 20265,001-10,0003,202 contacts →

Indirect evidence

“Welcome to the Page Personnel company profile.”

Source: RevenueBase Database · checked Sep 30, 2026
24Indirect evidenceHanover, MD, United StatesHQ checked Sep 30, 202610001+3,103 contacts →

Indirect evidence

“As the global leader in talent solutions, we take pride in what we do, connecting great people to great opportunities, helping businesses win and careers soar.”

Source: RevenueBase Database · checked Sep 30, 2026
25Indirect evidenceMadrid, SpainHQ checked Sep 30, 20261,001-5,0003,083 contacts →

Indirect evidence

“Randstad es la empresa líder en España en soluciones de Recursos Humanos, haciendo posible que cada día personas en nuestro país tengan un empleo.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 25 of 44,466 executive search and interim placement companies worldwide

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Executive search and interim placement companies worldwide at a glance

As of Sep 30, 2026
17.9%Verified-email coverage
15.8%Mobile-number coverage
24.1Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · London
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
27,452
11-50
10,703
51-200
3,889
201-500
1,261
501-1,000
502
1,001-5,000
410
5,001-10,000
86
10001+
96

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 executive search and interim placement companies, 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
39 countries, largest first: the United States, the United Kingdom, the Netherlands, Germany, France, Canada, Brazil, Australia, South Africa, Switzerland and 29 more. Country and city lists for executive search and interim placement companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “executive search and interim placement companies”. 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 executive search and interim placement companies), 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 executive search and interim placement companies, 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, 191,875 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 30, 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.

Executive search and interim placement companies by location

227 lists · largest first

Every Executive search and interim placement 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 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 executive search and interim placement companies, 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 executive search and interim placement companies are there worldwide?

RevenueBase identified 44,466 executive search and interim placement companies 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?

Adecco, headquartered in Zurich, tops this list with the largest team on record.

Which country has the most executive search and interim placement companies?

The United States leads with 17,485 companies, followed by the United Kingdom (6,307) and the Netherlands (2,746). Every executive search and interim placement companies list by country and city is linked on this page.

Which city has the most executive search and interim placement companies?

London leads with 2539 headquartered companies, followed by New York (1066) and Paris (768).

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 191,875 verified decision-maker contacts tracked across these 44,466 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 30, 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.