Company lists · Data refreshed September 2026

Top 25 Software testing staffing companies based in the United Kingdom

Name: Software testing 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 29, 2026 190 companies tracked

RevenueBase identified 190 software testing staffing companies headquartered in the United Kingdom as of September 2026 and tracks 1,255 professional contacts across them, including 392 with verified work emails. London is the largest hub.

This list covers software testing 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 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

190Companies

1,255Contacts tracked

392Verified emails

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The 25 largest software testing staffing companies based in the United Kingdom

Ranked by team size

Top 25 of 190 software testing staffing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software testing 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	2i	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 29, 2026	201-500	248 contacts →
	Indirect evidence “We help CTOs, Programme Directors, and Engineering Leaders deliver complex technology change safely, on time, under control, and at sustainable cost.” Source: RevenueBase Database · checked Sep 29, 2026
2	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
3	Cbsbutler	Indirect evidence	Redhill, United KingdomHQ checked Sep 29, 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 29, 2026
4	Calibrecode Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	39 contacts →
	Indirect evidence “CalibreCode provides on-demand and integrated Quality Assurance Solutions for Product Management & Engineering teams.” Source: RevenueBase Database · checked Sep 29, 2026
5	WJF Technical Support Limited	Indirect evidence	Blackpool, United KingdomHQ checked Sep 29, 2026	51-200	23 contacts →
	Indirect evidence “WJF Technical Support has been sourcing and managing technical staff requirements since 2010 with first-hand knowledge of working across the industries we support.” Source: RevenueBase Database · checked Sep 29, 2026
6	Experior	Indirect evidence	Staines, United KingdomHQ checked Sep 29, 2026	51-200	21 contacts →
	Indirect evidence “At Experior we believe the user experience is everything.” Source: RevenueBase Database · checked Sep 29, 2026
7	Amber Resourcing	Indirect evidence	Bristol/manchester, United KingdomHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Are you ready to take your tech career to new heights or find the perfect tech talent for your company?” Source: RevenueBase Database · checked Sep 29, 2026
8	Tiro Partners Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	17 contacts →
	Partial evidence “Tiro Partners is an innovative, enthusiastic and fast-growing global staffing agency dedicated to placing exceptional permanent and contract candidates within the IT and…” Source: RevenueBase Database · checked Sep 29, 2026
9	4mation Partners	Indirect evidence	Wimbledon, United KingdomHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “Timely.” Source: RevenueBase Database · checked Sep 29, 2026
10	SMQA	Indirect evidence	Canterbury, United KingdomHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “SMQA is an established IT Consulting services company specialised in Quality Assurance, Performance Engineering and DevOps helping clients providing precise, scalable, quality…” Source: RevenueBase Database · checked Sep 29, 2026
11	CQE	Indirect evidence	Leeds, United KingdomHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “A team of innovative Technology Leaders and Quality Engineers, we take a solution-led approach to help our clients engineer quality into all stages of their product lifecycle.” Source: RevenueBase Database · checked Sep 29, 2026
12	James Andrews Technology	Indirect evidence	Birmingham, United KingdomHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “At James Andrews Technology, we’re passionate about shaping the future of the tech industry by connecting exceptional talent with opportunity and delivering solutions that…” Source: RevenueBase Database · checked Sep 29, 2026
13	Ingenuity	Strong evidence	Gloucester, United KingdomHQ checked Sep 29, 2026	11-50	8 contacts →
	Strong evidence “We specialise in software testing, automation, data migration and ProductWriter, bringing together a unique blend of technical and industry knowledge.” Source: RevenueBase Database · checked Sep 29, 2026
14	Talrise Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “Talrise Recruitment is a UK-based company that provides opportunities to its clients to employ the best talents for their vacancies in front-end, back-end, DevOps and QA Tester…” Source: RevenueBase Database · checked Sep 29, 2026
15	Fortitude 17 Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Assurance.” Source: RevenueBase Database · checked Sep 29, 2026
16	Joynes & Hunt	Partial evidence	Macclesfield, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “Joynes & Hunt is a specialist staffing solutions provider for the STEM sectors.” Source: RevenueBase Database · checked Sep 29, 2026
17	Launch LAB	Indirect evidence	West End, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Introducing Launch Lab, your strategic partner in scaling for tech teams and companies.” Source: RevenueBase Database · checked Sep 29, 2026
18	Prorec Solution LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “Prorec Solution Ltd is a leading tech talent solution company dedicated to connecting businesses with top-tier technology professionals.” Source: RevenueBase Database · checked Sep 29, 2026
19	Principal IT	Indirect evidence	Hull, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Welcome to Principal IT - Your Premier Partner in IT Recruitment!” Source: RevenueBase Database · checked Sep 29, 2026
20	Conex Europe LTD	Strong evidence	Hornchurch, United KingdomHQ checked Sep 29, 2026	11-50	4 contacts →
	Strong evidence “We are a specialist Permanent and Contract IT recruitment agency, focussing our efforts on sectors such as Microsoft Development, Opensource Development, Software Testing and…” Source: RevenueBase Database · checked Sep 29, 2026
21	Techxperts Recruitment	Indirect evidence	Pocklington, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Welcome to TechXperts Recruitment!” Source: RevenueBase Database · checked Sep 29, 2026
22	Viribus	Indirect evidence	Horsham, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “your go-to partner in the wild and wonderful world of tech talent solutions!” Source: RevenueBase Database · checked Sep 29, 2026
23	Proper QA	Partial evidence	Edinburgh, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Founded in 2011 by industry veteran Nick Barrett, Proper QA is a quality assurance service provider, specialising in quality assurance testing and the creation of innovative test…” Source: RevenueBase Database · checked Sep 29, 2026
24	Requiretech Resources LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “RequireTech Resources is a Recruitment Company that provides Permanent and Contract Staff who are highly skilled technical professionals to our clients globally.” Source: RevenueBase Database · checked Sep 29, 2026
25	Stream Recruitment LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Since 2007 we've been connecting IT leads and CTOs to skilled Testers, Developers and Architects who can meet complex project needs and requirements and facilitate transformation…” 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: software testing 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 software testing staffing companies.
Partial evidence: Its own public description names part of software testing staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software testing 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 190 software testing staffing companies based in the United Kingdom

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Software testing staffing companies based in the United Kingdom at a glance

As of Sep 29, 2026

31.2%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

41.6%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

128

11-50

51-200

201-500

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 190 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 software testing 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 “software testing 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 software testing 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 software testing 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, 392 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.

Software testing staffing companies by metro

Software testing staffing companies in London79

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 software testing 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 software testing staffing companies are there based in the United Kingdom?

RevenueBase identified 190 software testing 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?

2i, headquartered in Edinburgh, tops this list with the largest team on record.

Which city has the most software testing staffing companies?

London leads with 79 headquartered companies, followed by Manchester (7) and Newcastle Upon Tyne (4).

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 392 verified decision-maker contacts tracked across these 190 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.

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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.