Company lists · Data refreshed September 2026

Top 25 Cloud security staffing firms based in the United Kingdom

Name: Cloud security staffing firms 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 403 companies tracked

RevenueBase identified 403 cloud security staffing firms headquartered in the United Kingdom as of September 2026 and tracks 16,206 professional contacts across them, including 1,265 with verified work emails. London is the largest hub.

This list covers cloud security staffing firms 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

403Companies

16,206Contacts tracked

1,265Verified emails

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The 25 largest cloud security staffing firms based in the United Kingdom

Ranked by team size

Top 25 of 403 cloud security staffing firms 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 cloud security staffing firms: 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	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	2,673 contacts →
	Indirect 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 27, 2026
2	Tangent International	Indirect evidence	Billericay, United KingdomHQ checked Sep 27, 2026	201-500	244 contacts →
	Indirect evidence “Tangent International Integrated Talent and Delivery across Technology and Communications.” Source: RevenueBase Database · checked Sep 27, 2026
3	Cloud Direct	Partial evidence	Bath, United KingdomHQ checked Sep 27, 2026	51-200	168 contacts →
	Partial evidence “Cloud Direct is a leading Microsoft Partner that helps organisations realise the true value of artificial intelligence and position themselves as Agent-Ready Enterprises.” Source: RevenueBase Database · checked Sep 27, 2026
4	Explore Group	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
5	Hamilton Barnes	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	139 contacts →
	Indirect evidence “Hamilton Barnes are an award-winning recruitment consultancy, here to help you secure the best talent and opportunities in the networking, telecommunications, data center and…” Source: RevenueBase Database · checked Sep 27, 2026
6	Square ONE Resources	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
7	Energize Group	Indirect evidence	Manchester, United KingdomHQ checked Sep 27, 2026	51-200	107 contacts →
	Indirect evidence “WE are Energize Group.” Source: RevenueBase Database · checked Sep 27, 2026
8	Third Republic	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	60 contacts →
	Indirect evidence “Salesforce and AI Workforce Solutions For The Companies Of Tomorrow Registered Salesforce Partner Approved Staff Augmentation Vendor to Salesforce and Amazon Bringing together AI…” Source: RevenueBase Database · checked Sep 27, 2026
9	Damia Group	Partial evidence	Guildford, United KingdomHQ checked Sep 27, 2026	11-50	49 contacts →
	Partial evidence “Damia Group is a trusted talent solutions partner with over 30 years of experience supporting security-cleared environments, including defence, government, space, and aerospace.” Source: RevenueBase Database · checked Sep 27, 2026
10	RED SKY Personnel	Indirect evidence	Watford, United KingdomHQ checked Sep 27, 2026	11-50	48 contacts →
	Indirect evidence “Red Sky empowers our partners with the flexible workforce solutions they need to navigate operational spikes.” Source: RevenueBase Database · checked Sep 27, 2026
11	Select Tech	Partial evidence	Billericay, United KingdomHQ checked Sep 27, 2026	51-200	46 contacts →
	Partial evidence “We specialise in supplying global business with ERP, Cloud, and Data specialists.” Source: RevenueBase Database · checked Sep 27, 2026
12	Senovo IT LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	41 contacts →
	Indirect evidence “Senovo IT is a leading global provider of contract and permanent staff.” Source: RevenueBase Database · checked Sep 27, 2026
13	Stallions Technologies	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	35 contacts →
	Indirect evidence “At Stallions Technologies, we passionately believe that we are successful in delivering excellence to our clients because we deliberately seek to hire 'Brilliant' people.” Source: RevenueBase Database · checked Sep 27, 2026
14	IT Farm LTD	Partial evidence	Manchester, United KingdomHQ checked Sep 27, 2026	11-50	35 contacts →
	Partial evidence “Secure, compliant and resilient Cloud IT for legal, accounting, financial and professional service companies IT Farm helps you focus on the sustainability and long term growth of…” Source: RevenueBase Database · checked Sep 27, 2026
15	Parallel Consulting	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	33 contacts →
	Indirect evidence “We are Parallel!” Source: RevenueBase Database · checked Sep 27, 2026
16	Shapeblue	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	29 contacts →
	Indirect evidence “ShapeBlue is the largest independent integrator of CloudStack technologies globally.” Source: RevenueBase Database · checked Sep 27, 2026
17	Central Recruitment Services	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	29 contacts →
	Partial evidence “Central Recruitment’s Software and Service Solutions are designed to assist organisations with diverse contingent staffing needs.” Source: RevenueBase Database · checked Sep 27, 2026
18	Recann	Indirect evidence	Manchester, United KingdomHQ checked Sep 27, 2026	11-50	29 contacts →
	Indirect evidence “In a world of complex requirements, Recann takes away the pain of recruiting in-demand talent or finding that next great career move.” Source: RevenueBase Database · checked Sep 27, 2026
19	Skye Cloud LTD	Partial evidence	London London, United KingdomHQ checked Sep 27, 2026	11-50	28 contacts →
	Partial evidence “Not your standard "one-size fits all" commoditised Cloud Service Provider, Skye Cloud are passionate about the flexibility and versatility Cloud Computing has to offer and have…” Source: RevenueBase Database · checked Sep 27, 2026
20	Proactive.It Appointments LTD	Indirect evidence	Walton-on-thames, United KingdomHQ checked Sep 27, 2026	11-50	26 contacts →
	Indirect evidence “Welcome to Proactive.IT Appointments Ltd.” Source: RevenueBase Database · checked Sep 27, 2026
21	Advantage Angels	Partial evidence	Ipswich, United KingdomHQ checked Sep 27, 2026	501-1,000	26 contacts →
	Partial evidence “At Advantage Angels, we pride ourselves on the quality of our staffing and ensuring that we have adequate staff available to fulfil your shift requirements at all times even at…” Source: RevenueBase Database · checked Sep 27, 2026
22	DCL Search	Partial evidence	Beckenham, United KingdomHQ checked Sep 27, 2026	11-50	26 contacts →
	Partial evidence “DCL Search reduce clients risk by identifying attracting the very best Cyber / Information Security Talent in the industry.” Source: RevenueBase Database · checked Sep 27, 2026
23	Beyondstaff	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	24 contacts →
	Indirect evidence “Beyond Staff is a globally dispersed team supporting businesses through the most cost-efficient and flexible hiring solution.” Source: RevenueBase Database · checked Sep 27, 2026
24	Intaso	Partial evidence	Bath, United KingdomHQ checked Sep 27, 2026	11-50	23 contacts →
	Partial evidence “At Intaso we are firm believers that not every business has the same Cyber/ Information Security talent shortages and demands a bespoke offering.” Source: RevenueBase Database · checked Sep 27, 2026
25	Iceberg	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1-10	20 contacts →
	Partial evidence “We connect top cybersecurity and eDiscovery talent at Iceberg Cyber Security with the most innovative companies worldwide.” 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: cloud security staffing firms. 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 cloud security staffing firms.
Partial evidence: Its own public description names part of cloud security staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud security staffing firms. 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 403 cloud security staffing firms based in the United Kingdom

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Cloud security staffing firms based in the United Kingdom at a glance

As of Sep 27, 2026

7.8%Verified-email coverage

40.2Average contacts per company

1-10Median size (employees)

47.4%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

260

11-50

112

51-200

201-500

501-1,000

1,001-5,000

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 403 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 cloud security staffing firms, 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 “cloud security staffing firms”. 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 cloud security staffing firms), 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 cloud security staffing firms, 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, 1,265 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.

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 cloud security staffing firms, 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 cloud security staffing firms are there based in the United Kingdom?

RevenueBase identified 403 cloud security staffing firms 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?

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

Which city has the most cloud security staffing firms?

London leads with 191 headquartered companies, followed by Manchester (23) and Birmingham (7).

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 1,265 verified decision-maker contacts tracked across these 403 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.