Company lists · Data refreshed September 2026

Top 25 Contract IT staffing companies based in the United Kingdom

Name: Contract IT staffing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 553 companies tracked

RevenueBase identified 553 contract IT staffing companies headquartered in the United Kingdom as of September 2026 and tracks 7,217 professional contacts across them, including 1,360 with verified work emails. London is the largest hub.

This list covers contract IT staffing companies headquartered in the 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 27, 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 27, 2026 86% judged on-target in blind review

553Companies

7,217Contacts tracked

1,360Verified emails

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The 25 largest contract IT staffing companies based in the United Kingdom

Ranked by team size

Top 25 of 553 contract IT staffing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to contract IT staffing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
2	GCS	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
3	Crimson	Strong evidence	Birmingham, United KingdomHQ checked Sep 27, 2026	51-200	215 contacts →
	Strong evidence “Crimson’s IT recruitment services simplify the recruitment process, helping hiring managers find the best contract and permanent IT talent in established and emerging disciplines.” Source: RevenueBase Database · checked Sep 27, 2026
4	Linnk Group	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	194 contacts →
	Partial evidence “Linnk Group provides staffing, outsourcing and professional services to our clients.” Source: RevenueBase Database · checked Sep 27, 2026
5	Abraxas	Strong evidence	Luton, United KingdomHQ checked Sep 27, 2026	201-500	161 contacts →
	Strong evidence “With over 30 years experience of serving clients Internationally and filling their IT and Life Sciences staffing vacancies, both Contract and Permanent, you can be assured we will…” Source: RevenueBase Database · checked Sep 27, 2026
6	Skillrecruit	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	125 contacts →
	Partial 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 27, 2026
7	Sentinel	Partial evidence	Tunbridge Wells Kent, United KingdomHQ checked Sep 27, 2026	11-50	110 contacts →
	Partial evidence “In a world obsessed with technology, we’re interested in the people who make it.” Source: RevenueBase Database · checked Sep 27, 2026
8	Deltaclass Technology Solutions Limited	Partial evidence	Slough, United KingdomHQ checked Sep 27, 2026	51-200	106 contacts →
	Partial evidence “Deltaclass Technology Solutions (DCTS) is an IT Recruitment and Consultancy Services Company, and we are specialised within Technology hiring- Supply Permanent / Temporary /…” Source: RevenueBase Database · checked Sep 27, 2026
9	IT Talent	Strong evidence	Reading, United KingdomHQ checked Sep 27, 2026	11-50	92 contacts →
	Strong evidence “IT Talent is a rapidly expanding specialist IT & Tech Recruitment Consultancy offering tailored solutions to meet the needs of our clients from permanent to contract requirements.” Source: RevenueBase Database · checked Sep 27, 2026
10	Austin Fraser	Indirect evidence	Uk, United KingdomHQ checked Sep 27, 2026	201-500	81 contacts →
	Indirect evidence “Real relationships, shared goals, that’s where the magic happens.” Source: RevenueBase Database · checked Sep 27, 2026
11	Parity Network Limited	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 27, 2026	11-50	80 contacts →
	Indirect evidence “For over 45 years we have been connecting our clients with the best technology, transformation and data talent.” Source: RevenueBase Database · checked Sep 27, 2026
12	Cbsbutler	Indirect evidence	Redhill, United KingdomHQ checked Sep 27, 2026	11-50	60 contacts →
	Indirect evidence “CBSbutler is a multi-award winning recruitment firm specialising in technical appointments across global industries.” Source: RevenueBase Database · checked Sep 27, 2026
13	Parkside Recruitment	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 27, 2026	51-200	54 contacts →
	Indirect evidence “Office Professionals - Accounting and Finance Parkside is a vibrant business providing high quality recruitment and resourcing solutions through two specialist divisions in the…” Source: RevenueBase Database · checked Sep 27, 2026
14	X4 Technology	Indirect evidence	Temple, United KingdomHQ checked Sep 27, 2026	51-200	53 contacts →
	Indirect evidence “X4 Technology partner with businesses across the entire technology spectrum, from early-stage R&D to commercial enterprises to provide world-class talent solutions.” Source: RevenueBase Database · checked Sep 27, 2026
15	Corecom Consulting	Partial evidence	Leeds, United KingdomHQ checked Sep 27, 2026	11-50	51 contacts →
	Partial evidence “Corecom Consulting is The UK’s Leading IT Recruitment Company headquartered in Leeds, with a European division.” Source: RevenueBase Database · checked Sep 27, 2026
16	Warriorz Technologies	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	51 contacts →
	Indirect evidence “In a highly technical industry of Information Technology, Warriorz Technologies Ltd is paving the way in Human Resource and Software consulting across the globe.” Source: RevenueBase Database · checked Sep 27, 2026
17	Lucid Support Services LTD	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 27, 2026	51-200	50 contacts →
	Partial evidence “Lucid is a multi-award winning established, reliable and trusted IT Employment Services and IT Project Delivery provider throughout the UK.” Source: RevenueBase Database · checked Sep 27, 2026
18	Tank Recruitment	Strong evidence	Truro, United KingdomHQ checked Sep 27, 2026	11-50	49 contacts →
	Strong evidence “Tank Recruitment specialise in recruiting the full IT lifecycle within the Contract and Permanent markets throughout the UK.” Source: RevenueBase Database · checked Sep 27, 2026
19	Venture DK	Indirect evidence	Leeds, United KingdomHQ checked Sep 27, 2026	51-200	47 contacts →
	Indirect evidence “VentureDK is a fast-growing software development company with 15 years of experience.” Source: RevenueBase Database · checked Sep 27, 2026
20	hiredeveloper.dev	Indirect evidence	Feltham, United KingdomHQ checked Sep 27, 2026	201-500	43 contacts →
	Indirect evidence “Hire Developer.Dev is your strategic partner in building exceptional digital experiences.” Source: RevenueBase Database · checked Sep 27, 2026
21	Senovo IT LTD	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	41 contacts →
	Strong evidence “Senovo IT is a leading global provider of contract and permanent staff.” Source: RevenueBase Database · checked Sep 27, 2026
22	Falcon Smart IT Falconsmartit	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	41 contacts →
	Partial evidence “Global Specialist IT Recruitment Agency Leader in Digital Transformation, Business IT Solutions and IT Recruitment Specialists Falcon Smart IT is a Specialist recruitment agency…” Source: RevenueBase Database · checked Sep 27, 2026
23	Involved Solutions	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	38 contacts →
	Indirect evidence “Involved is a distinguished and highly regarded technology recruitment consultancy partner, catering to the requirements of prestigious FTSE 100 corporations, blue-chip firms, and…” Source: RevenueBase Database · checked Sep 27, 2026
24	Smartchoice International Limited	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	36 contacts →
	Strong evidence “SmartChoice International is a premier IT consulting and staffing organisation, delivering excellence in both onshore and nearshore technology staffing solutions.” Source: RevenueBase Database · checked Sep 27, 2026
25	Uniting Ambition	Partial evidence	Staffordshire, United KingdomHQ checked Sep 27, 2026	11-50	33 contacts →
	Partial evidence “At Uniting Ambition, we partner with technology leaders to solve complex hiring and delivery challenges, providing permanent recruitment, contract recruitment, and managed…” Source: RevenueBase Database · checked Sep 27, 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: contract IT staffing companies. 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 contract IT staffing companies.
Partial evidence: Its own public description names part of contract IT staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contract IT staffing companies. 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 553 contract IT staffing companies based in the United Kingdom

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Contract IT staffing companies based in the United Kingdom at a glance

As of Sep 27, 2026

18.8%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

32.5%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

326

11-50

158

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 553 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 contract IT staffing 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.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “contract IT staffing 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 contract IT staffing 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 contract IT staffing companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,360 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.

Contract IT staffing companies by metro

Contract IT staffing companies in London180

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 contract IT staffing 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 contract IT staffing companies are there based in the United Kingdom?

RevenueBase identified 553 contract IT staffing companies headquartered in the 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?

Harvey Nash, headquartered in London, tops this list with the largest team on record.

Which city has the most contract IT staffing companies?

London leads with 180 headquartered companies, followed by Manchester (22) and Birmingham (13).

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 1,360 verified decision-maker contacts tracked across these 553 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.