Company lists · Data refreshed November 2026

Top 22 Ciso recruiters based in the United Kingdom

RevenueBase identified 2,014 company matches for ciso recruiters associated with the United Kingdom as of November 2026 and tracks 16,698 professional contacts across them, including 5,434 with verified work emails. London is the largest hub.

This list covers company matches for ciso recruiters associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
2,014Companies
16,698Contacts tracked
5,434Verified emails
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The 22 largest ciso recruiters based in the United Kingdom

Ranked by team size
Top 22 of 2,014 company matches for ciso recruiters based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 20261,001-5,000694 contacts →

Exact match

“We’re the recognized global leaders in Microsoft recruitment; it’s all we do.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchReading, United KingdomHQ recorded Nov 6, 2026201-500327 contacts →

Exact match

“Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200292 contacts →

Exact match

“Stanley David And Associates (SDNA Global) is a recruitment specialist in the area of IT and Engineering, we stay firmly in our area of expertise, doing what we love.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLeeds, United KingdomHQ recorded Nov 6, 2026201-500257 contacts →

Exact match

“We are a global boutique, specializing exclusively in the convergence of identity-driven security and networking.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBirmingham, United KingdomHQ recorded Nov 6, 202651-200211 contacts →

Exact match

“Crimson is a transformation partner to organisations that create public impact.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200184 contacts →

Exact match

“Next Ventures is a multi-award winning, global I.T recruitment business, supplying specialist project teams to the Large Enterprise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200164 contacts →

Exact match

“Global Technology Recruitment Specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMaidenhead, United KingdomHQ recorded Nov 6, 202651-200157 contacts →

Exact match

“Performanta is a global cybersecurity and data risk management company dedicated to protecting people where data matters most.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 202651-200152 contacts →

Exact match

“We match the right talent to the right jobs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 2026n/a151 contacts →

Exact match

“The Explore Group has been helping companies recruit top talent in the ever-evolving world of technology since 2005.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-50145 contacts →

Exact match

“SustainRecruit is a specialist Tech, Digital and Financial Services recruitment partner, connecting organisations with high-quality talent across a broad range of disciplines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200125 contacts →

Exact match

“We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200119 contacts →

Exact match

“At Client Server, we are driven by technology and powered by people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“With over 30 years in the technology recruitment sector, Square One is an award-winning specialist recruitment agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500104 contacts →

Exact match

“As an independent IT security specialist, Caretower provide comprehensive solutions to individual problems, thus allowing our recommendations to be unbiased.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAddlestone, United KingdomHQ recorded Nov 6, 202611-50102 contacts →

Exact match

“The market leaders in technical recruitment for Telecoms and Fire & Security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCrawley, United KingdomHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Optime is a leading force in specialised recruitment, partnering with key players across the aviation, hospitality, rail, security, and warehousing & logistics sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchReading, United KingdomHQ recorded Nov 6, 202611-5095 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBromley, United KingdomHQ recorded Nov 6, 2026n/a94 contacts →

Exact match

“SecurityClearedJobs.com is a UK based job board designed for individuals working across all industry sectors who have obtained Security Clearance or who meet the criteria for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5092 contacts →

Exact match

“We are an executive recruitment firm based in the City of London and are specialists in the search and selection of professionals in Technology, Digital & RPA, BPO, Shared…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBasingstoke, United KingdomHQ recorded Nov 6, 202611-5091 contacts →

Exact match

“Amethyst Risk Management is a leading cybersecurity consultancy supplying expert services and support to the UK Government, Defence, Operators of Essential Services, and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon London, United KingdomHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“At FRG Technology Consulting, we help job seekers all over the world to find the best IT and emerging technology roles across a range of industries, including Banking and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 22 of 2,014 ciso recruiters based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,434 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ciso recruiters based in the United Kingdom at a glance

As of Nov 6, 2026
32.5%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
42.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,430
11-50
470
51-200
78
201-500
17
501-1,000
3
1,001-5,000
1
10001+
1

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 2,014 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “ciso recruiters” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,434 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ciso recruiters”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ciso recruiters are there based in the United Kingdom?

RevenueBase identified 2,014 company matches for ciso recruiters associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Nigel Frank International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ciso recruiters?

London leads with 859 company records, followed by Manchester (100) and Leeds (44).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,434 professional contacts with verified work emails tracked across these 2,014 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.