Company lists · Data refreshed September 2026

Top 25 Engineering staffing services worldwide

Name: Engineering staffing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 23,915 companies tracked

RevenueBase identified 23,915 engineering staffing services worldwide as of September 2026 and tracks 440,761 professional contacts across them, including 85,311 with verified work emails. The United States is the largest market and London the largest hub.

This list covers engineering staffing services 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 21, 2026. Country and city lists for engineering staffing services 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 21, 2026 86% judged on-target in blind review

23,915Companies

440,761Contacts tracked

85,311Verified emails

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The 25 largest engineering staffing services worldwide

Ranked by team size

Top 25 of 23,915 engineering staffing services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to engineering staffing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Robert Half	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 21, 2026	10001+	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 21, 2026
2	Tradesmen International	Indirect evidence	Macedonia, OH, United StatesHQ checked Sep 21, 2026	10001+	4,999 contacts →
	Indirect evidence “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Source: RevenueBase Database · checked Sep 21, 2026
3	Spherion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	10001+	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 21, 2026
4	NES Fircroft	Strong evidence	Altrincham, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,951 contacts →
	Strong evidence “With over 90 years’ combined experience of delivering workforce solutions to the global energy industry, NES Fircroft is proud to be the world’s leading engineering staffing…” Source: RevenueBase Database · checked Sep 21, 2026
5	Samsic Emploi	Indirect evidence	Rennes, FranceHQ checked Sep 21, 2026	5,001-10,000	2,454 contacts →
	Indirect evidence “Samsic Emploi a été classée meilleure enseigne de travail temporaire par Capital, pour la 4ème année consécutive.” Source: RevenueBase Database · checked Sep 21, 2026
6	Blue Arrow	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	2,341 contacts →
	Partial evidence “Blue Arrow is the UK’s Best-Known Staffing Agency, placing tens of thousands of candidates into temporary and permanent jobs for employers in the transport, logistics, call…” Source: RevenueBase Database · checked Sep 21, 2026
7	Airswift	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	2,128 contacts →
	Partial evidence “We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.” Source: RevenueBase Database · checked Sep 21, 2026
8	Start People	Indirect evidence	Almere, NetherlandsHQ checked Sep 21, 2026	1,001-5,000	2,027 contacts →
	Indirect evidence “Al meer dan vijfendertig jaar verbindt Start People mens en werk.” Source: RevenueBase Database · checked Sep 21, 2026
9	Staffline Recruitment Limited	Indirect evidence	Nottingham, United KingdomHQ checked Sep 21, 2026	501-1,000	1,865 contacts →
	Indirect evidence “At Staffline, we make recruitment simple, strategic and effective.” Source: RevenueBase Database · checked Sep 21, 2026
10	Addison Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,840 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 21, 2026
11	MEDIX	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	1,753 contacts →
	Partial evidence “Medix provides workforce solutions to clients and creates opportunity for talent in the Healthcare, Life Sciences, Engineering and Technology fields.” Source: RevenueBase Database · checked Sep 21, 2026
12	Synergie Italia	Indirect evidence	Torino, ItalyHQ checked Sep 21, 2026	501-1,000	1,748 contacts →
	Indirect evidence “L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.” Source: RevenueBase Database · checked Sep 21, 2026
13	Magna Infotech	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	10001+	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 21, 2026
14	Resourcemfg	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,639 contacts →
	Indirect evidence “ResourceMFG places temporary and direct hire employees within the total spectrum of manufacturing jobs including production, quality, maintenance, supervision, and all levels of…” Source: RevenueBase Database · checked Sep 21, 2026
15	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 21, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 21, 2026
16	RENCO	Indirect evidence	Pesaro, ItalyHQ checked Sep 21, 2026	1,001-5,000	1,494 contacts →
	Indirect evidence “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Source: RevenueBase Database · checked Sep 21, 2026
17	Kirby Group Engineering	Partial evidence	Limerick, IrelandHQ checked Sep 21, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Source: RevenueBase Database · checked Sep 21, 2026
18	Brooksource	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,480 contacts →
	Indirect evidence “At Brooksource, relationships are at the center of everything we do.” Source: RevenueBase Database · checked Sep 21, 2026
19	Accent Jobs	Indirect evidence	Roeselare, BelgiumHQ checked Sep 21, 2026	1,001-5,000	1,469 contacts →
	Indirect evidence “Accent is the recruitment partner for every company and every job seeker.” Source: RevenueBase Database · checked Sep 21, 2026
20	Search	Indirect evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	501-1,000	1,429 contacts →
	Indirect evidence “Search is one of the UK’s leading multi-discipline recruitment agencies, covering more than 14 different specialisms and operating from 13 offices nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
21	Tundra Technical Solutions	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	501-1,000	1,428 contacts →
	Partial evidence “Tundra is a global provider of innovative staffing solutions and services.” Source: RevenueBase Database · checked Sep 21, 2026
22	BHI Energy	Partial evidence	Weymouth, MA, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,427 contacts →
	Partial evidence “BHI Energy is an industry-leading provider of specialty services and staffing solutions in support of the daily operations, routine maintenance and capital investment requirements…” Source: RevenueBase Database · checked Sep 21, 2026
23	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	1,248 contacts →
	Indirect evidence “We’re Harvey Nash, and we build amazing technology and digital teams.” Source: RevenueBase Database · checked Sep 21, 2026
24	Construction Labor Contractors	Partial evidence	Round Rock, TX, United StatesHQ checked Sep 21, 2026	501-1,000	1,234 contacts →
	Partial evidence “Let us make construction staffing work for you.” Source: RevenueBase Database · checked Sep 21, 2026
25	Outsource	Partial evidence	El Segundo, CA, United StatesHQ checked Sep 21, 2026	n/a	1,230 contacts →
	Partial evidence “Outsource is the largest staffing firm in the nation specializing in the placement of low voltage and electrical talent.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: engineering staffing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names engineering staffing services.
Partial evidence: Its own public description names part of engineering staffing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering staffing services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 23,915 engineering staffing services worldwide

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Engineering staffing services worldwide at a glance

As of Sep 21, 2026

19.4%Verified-email coverage

18.4Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11,971

11-50

7,049

51-200

3,162

201-500

933

501-1,000

377

1,001-5,000

249

5,001-10,000

10001+

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 engineering staffing services, 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 engineering staffing services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “engineering staffing services”. 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 engineering staffing services), 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 engineering staffing services, 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, 85,311 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 21, 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.

Engineering staffing services by location

103 lists · largest first

Every Engineering staffing services 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 engineering staffing services, 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 engineering staffing services are there worldwide?

RevenueBase identified 23,915 engineering staffing services 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 engineering staffing services?

The United States leads with 4,621 companies, followed by the United Kingdom (4,481) and India (1,652). Every engineering staffing services list by country and city is linked on this page.

Which city has the most engineering staffing services?

London leads with 886 headquartered companies, followed by Manchester (184) and Sydney (183).

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 85,311 verified decision-maker contacts tracked across these 23,915 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 21, 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.