Company lists · Data refreshed September 2026

Top 25 Stem staffing agencies based in London, United Kingdom

Name: Stem staffing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 717 companies tracked

RevenueBase identified 717 stem staffing agencies headquartered in London, United Kingdom as of September 2026 and tracks 19,642 professional contacts across them, including 3,937 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers stem staffing agencies headquartered in London, United Kingdom, 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 29, 2026.

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 29, 2026 86% judged on-target in blind review

717Companies

19,642Contacts tracked

3,937Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest stem staffing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 717 stem staffing agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to stem staffing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Computer Futures	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	2,673 contacts →
	Partial evidence “Building tomorrow’s tech landscape together Computer Futures is a Technology specialist, part of SThree, the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
2	Blue Arrow	Partial evidence	London, United KingdomHQ checked Sep 29, 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 29, 2026
3	Sthree	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	1,467 contacts →
	Partial evidence “Bringing skilled people together to build the future SThree is the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
4	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 29, 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 29, 2026
5	Huxley	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	736 contacts →
	Partial evidence “Shaping the future of finance Huxley is an IT specialist, part of SThree, the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
6	GCS	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	568 contacts →
	Indirect evidence “For over 30 years, GCS has been at the forefront of digital transformation, building vast global communities of innovators and placing them in businesses shaping tomorrow's world.” Source: RevenueBase Database · checked Sep 29, 2026
7	LA Fosse	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	396 contacts →
	Indirect evidence “La Fosse: Empowering people and businesses to thrive in a tech-driven world We are La Fosse.” Source: RevenueBase Database · checked Sep 29, 2026
8	Vivid Resourcing	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	369 contacts →
	Indirect evidence “Vivid Resourcing, a leading international talent solutions partner, connects you with in-demand technical professionals you need to flourish in the Tech, Engineering, Life…” Source: RevenueBase Database · checked Sep 29, 2026
9	Globe Locums	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	354 contacts →
	Indirect evidence “Globe Locums, is a Framework-approved, clinician-formed healthcare recruitment business.” Source: RevenueBase Database · checked Sep 29, 2026
10	Pracyva	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	300 contacts →
	Indirect evidence “At Pracyva, we specialize in building future-ready teams for clients worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
11	Appetite4work	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	220 contacts →
	Indirect evidence “Appetite4Work is the sibling company of Appetite4Recruitment.” Source: RevenueBase Database · checked Sep 29, 2026
12	Linnk Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	194 contacts →
	Partial evidence “Linnk Group provides staffing, outsourcing and professional services to our clients.” Source: RevenueBase Database · checked Sep 29, 2026
13	RP International	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	171 contacts →
	Indirect evidence “RP International is now part of Auxo Talent under the specialism of Auxo Technology.” Source: RevenueBase Database · checked Sep 29, 2026
14	XCEDE	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	145 contacts →
	Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 29, 2026
15	Explore Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	143 contacts →
	Indirect evidence “The Explore Group has been helping companies recruit top talent in the ever-evolving world of technology since 2005.” Source: RevenueBase Database · checked Sep 29, 2026
16	Bmsl Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	134 contacts →
	Indirect evidence “BMSL was formed in 1996 to provide specialist support to the construction industry.” Source: RevenueBase Database · checked Sep 29, 2026
17	MSI Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	132 contacts →
	Indirect evidence “Founded in 2002, MSI Group is a leading supplier of doctors, GPs, nurses, nurse practitioners, clinical advisors, allied health professionals, health science service staff…” Source: RevenueBase Database · checked Sep 29, 2026
18	Skills Alliance	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	131 contacts →
	Partial evidence “Skills Alliance is a leading specialist Global Life Science and STEM workforce solutions company.” Source: RevenueBase Database · checked Sep 29, 2026
19	Skillrecruit	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	125 contacts →
	Indirect evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 29, 2026
20	Chimera Recruitment	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	113 contacts →
	Partial evidence “Temporary Sales Consultants in Luxury Retail, Events & Hospitality Staffing Chimera Recruitment is an agency specialising in luxury retail counter support, promotions, perm…” Source: RevenueBase Database · checked Sep 29, 2026
21	Square ONE Resources	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	108 contacts →
	Indirect evidence “With over 25 years in the technology recruitment sector, Square One is an award-winning specialist recruitment agency.” Source: RevenueBase Database · checked Sep 29, 2026
22	Patchwork Health	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	102 contacts →
	Partial evidence “We’re a team made up of healthcare workers who’ve lived the struggles of temporary staffing.” Source: RevenueBase Database · checked Sep 29, 2026
23	Class1personnel	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	100 contacts →
	Indirect evidence “Class1 Personnel is committed to being a class above other recruitment agencies, and our skilled consultants consistently strive to achieve the very best results for our clients.” Source: RevenueBase Database · checked Sep 29, 2026
24	Thor Companies	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	94 contacts →
	Indirect evidence “Thor Companies® is a specialist recruitment agency that focuses its efforts on sourcing the very best talent across the Life Science, Engineering and Technology industries.” Source: RevenueBase Database · checked Sep 29, 2026
25	Mayday Healthcare	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	91 contacts →
	Indirect evidence “Mayday Healthcare has been an established Nursing Agency since December 2003.” Source: RevenueBase Database · checked Sep 29, 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: stem staffing agencies. 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 stem staffing agencies.
Partial evidence: Its own public description names part of stem staffing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name stem staffing agencies. 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 717 stem staffing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,937 reachable decision-makers.

Free signup · no credit card

View the full list →

Stem staffing agencies based in London, United Kingdom at a glance

As of Sep 29, 2026

20.0%Verified-email coverage

27.4Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

383

11-50

186

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 717 companies.

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 stem staffing 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.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “stem staffing 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 stem staffing 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 stem staffing agencies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
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, 3,937 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 29, 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.

Stem staffing agencies by metro in the United Kingdom

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 stem staffing 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 stem staffing agencies are there based in London, United Kingdom?

RevenueBase identified 717 stem staffing agencies headquartered in London, United Kingdom 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?

Computer Futures, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most stem staffing agencies?

London leads the United Kingdom with 717 headquartered companies, followed by Manchester (93) and Birmingham (47).

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 3,937 verified decision-maker contacts tracked across these 717 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 717 stem staffing agencies based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Stem staffing agencies by geography

Browse the directory

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.