Company lists · Data refreshed September 2026

Top 25 Executive search firms for AI based in the United Kingdom

Name: Executive search firms for AI based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,499 companies tracked

RevenueBase identified 3,499 executive search firms for AI headquartered in the United Kingdom as of September 2026 and tracks 36,567 professional contacts across them, including 10,943 with verified work emails. London is the largest hub.

This list covers executive search firms for AI 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 28, 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 28, 2026 86% judged on-target in blind review

3,499Companies

36,567Contacts tracked

10,943Verified emails

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The 25 largest executive search firms for AI based in the United Kingdom

Ranked by team size

Top 25 of 3,499 executive search firms for AI based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to executive search firms for AI: 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	Antal International	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,979 contacts →
	Strong evidence “Antal International is a global executive search organisation with over 130 offices in more than 30 countries.” Source: RevenueBase Database · checked Sep 28, 2026
2	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	Brook Street	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 28, 2026	501-1,000	1,214 contacts →
	Indirect evidence “For 75 years, the middle is where we've worked best.” Source: RevenueBase Database · checked Sep 28, 2026
4	Page Executive	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	5,001-10,000	450 contacts →
	Strong evidence “Page Executive is a global leader in executive search & recruitment.” Source: RevenueBase Database · checked Sep 28, 2026
5	Transearch	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	450 contacts →
	Strong evidence “TRANSEARCH International is a global executive search and leadership consulting organisation.” Source: RevenueBase Database · checked Sep 28, 2026
6	LA Fosse	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Gravitas Recruitment Group Global LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	383 contacts →
	Indirect evidence “Gravitas are serious about impacting the recruitment industry - positively.” Source: RevenueBase Database · checked Sep 28, 2026
8	PSD Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	335 contacts →
	Partial evidence “PSD is a leading international executive recruitment consultancy, specialising in executive, management and board level recruitment with over 35 years of experience.” Source: RevenueBase Database · checked Sep 28, 2026
9	PGC	Indirect evidence	Uk, United KingdomHQ checked Sep 28, 2026	n/a	320 contacts →
	Indirect evidence “In 2018 PGC rebranded as Friisberg & Partners International +44 207 062 3603” Source: RevenueBase Database · checked Sep 28, 2026
10	Mitra AI	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	314 contacts →
	Indirect evidence “Revolutionize your applications with Al and data, modernizing cloud solutions to enhance customer experience.” Source: RevenueBase Database · checked Sep 28, 2026
11	Harnham	Partial evidence	Wimbledon, United KingdomHQ checked Sep 28, 2026	201-500	239 contacts →
	Partial evidence “Harnham provides specialist Data and AI recruitment and staffing services, along with bespoke training solutions, across multiple industry verticals, operating in the UK, the USA…” Source: RevenueBase Database · checked Sep 28, 2026
12	IC Resources	Partial evidence	Reading, United KingdomHQ checked Sep 28, 2026	51-200	211 contacts →
	Partial evidence “In the search for highly skilled talent, IC Resources has supported the technology community since We match great talent to deep-tech companies around the world.” Source: RevenueBase Database · checked Sep 28, 2026
13	EMA Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	205 contacts →
	Strong evidence “EMA Partners is a global executive search firm, with more than 40 offices, located on five continents.” Source: RevenueBase Database · checked Sep 28, 2026
14	Tate Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	203 contacts →
	Indirect evidence “Our Heritage Founded by Lady Virginia Tate in 1985, Tate Recruitment emerged with a firm vision: to be the best everywhere, all the time.” Source: RevenueBase Database · checked Sep 28, 2026
15	Totaljobs	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	196 contacts →
	Indirect evidence “Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.” Source: RevenueBase Database · checked Sep 28, 2026
16	Omni RMS	Indirect evidence	Altrincham, United KingdomHQ checked Sep 28, 2026	51-200	190 contacts →
	Indirect evidence “Omni – Talent Is Everything At Omni, we help businesses find, attract, and retain the right people to drive long-term success.” Source: RevenueBase Database · checked Sep 28, 2026
17	Techtree	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	188 contacts →
	Partial evidence “TechTree is an AI-powered recruitment platform that combines a proprietary talent data platform, predictive AI, and a network of human recruiters to deliver the right candidates…” Source: RevenueBase Database · checked Sep 28, 2026
18	Green Park	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	187 contacts →
	Strong evidence “Green Park is a specialist executive search and advisory firm trusted by organisations seeking stronger, more future-ready leadership.” Source: RevenueBase Database · checked Sep 28, 2026
19	Outsource UK	Indirect evidence	Swindon, United KingdomHQ checked Sep 28, 2026	51-200	173 contacts →
	Indirect evidence “Outsource UK is one of the country’s largest and most successful independent specialist recruitment agencies, established over 30 years ago.” Source: RevenueBase Database · checked Sep 28, 2026
20	Mackenzie Stuart	Strong evidence	Leeds, United KingdomHQ checked Sep 28, 2026	201-500	165 contacts →
	Strong evidence “Established in May 2005, Mackenzie Stuart was founded to deliver bespoke, sector-specific services & expertise and in doing so, establish a new standard within Executive Search.” Source: RevenueBase Database · checked Sep 28, 2026
21	The SR Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	160 contacts →
	Partial evidence “We are The SR Group, a global recruitment company comprising specialist search and recruitment consultancies Brewer Morris, Carter Murray, Frazer Jones and Taylor Root.” Source: RevenueBase Database · checked Sep 28, 2026
22	Proactive Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	155 contacts →
	Indirect evidence “Connecting the world's leading engineering and technical talent with organisations driving innovation in automation, manufacturing, and advanced technology.” Source: RevenueBase Database · checked Sep 28, 2026
23	XCEDE	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	145 contacts →
	Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 28, 2026
24	Explore Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
25	Hamilton Barnes	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 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: executive search firms for AI. 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 executive search firms for AI.
Partial evidence: Its own public description names part of executive search firms for AI, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name executive search firms for AI. 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 3,499 executive search firms for AI based in the United Kingdom

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Executive search firms for AI based in the United Kingdom at a glance

As of Sep 28, 2026

29.9%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

55.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,516

11-50

794

51-200

152

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 3,499 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 executive search firms for AI, 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 “executive search firms for AI”. 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 executive search firms for AI), 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 executive search firms for AI, 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, 10,943 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 28, 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.

Executive search firms for AI by metro

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 executive search firms for AI, 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 executive search firms for AI are there based in the United Kingdom?

RevenueBase identified 3,499 executive search firms for AI 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?

Antal International, headquartered in London, tops this list with the largest team on record.

Which city has the most executive search firms for AI?

London leads with 1933 headquartered companies, followed by Manchester (134) and Leeds (86).

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 10,943 verified decision-maker contacts tracked across these 3,499 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 28, 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.