Company lists · Data refreshed September 2026

Top 25 Investment operations staffing agencies based in London, United Kingdom

Name: Investment operations staffing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 335 companies tracked

RevenueBase identified 335 investment operations staffing agencies headquartered in London, United Kingdom as of September 2026 and tracks 3,855 professional contacts across them, including 829 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers investment operations staffing agencies headquartered in London, 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

335Companies

3,855Contacts tracked

829Verified emails

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The 25 largest investment operations staffing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 335 investment operations staffing agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to investment operations staffing agencies: 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	IPS Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	251 contacts →
	Indirect evidence “Established in 1970, IPS are global specialists in recruiting for permanent, temporary and contract insurance, pension and finance jobs for all business functions within the…” Source: RevenueBase Database · checked Sep 28, 2026
2	PER	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	240 contacts →
	Indirect evidence “We are the leading retained search and recruitment specialists for private markets professionals.” Source: RevenueBase Database · checked Sep 28, 2026
3	LMA Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	118 contacts →
	Indirect evidence “We’re LMA, part of Empresaria Group plc, a professional recruitment agency that’s powered by curiosity.” Source: RevenueBase Database · checked Sep 28, 2026
4	Armstrong International	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	107 contacts →
	Indirect evidence “Armstrong International is a specialist services firm with a core focus on, and.” Source: RevenueBase Database · checked Sep 28, 2026
5	The Omerta Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	72 contacts →
	Indirect evidence “The Omerta Group, a Kingsley Gate company, is an Executive Search firm serving financial services clients globally from offices in New York, London and Hong Kong.” Source: RevenueBase Database · checked Sep 28, 2026
6	Eximius Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect evidence “Eximius Group helps business in the financial services, legal, technology, business support and energy sectors attract the best talent.” Source: RevenueBase Database · checked Sep 28, 2026
7	Harrington Starr	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	56 contacts →
	Indirect evidence “Harrington Starr is a multi-award winning financial technology recruitment business based in London, Belfast and New York City.” Source: RevenueBase Database · checked Sep 28, 2026
8	AAA Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	55 contacts →
	Indirect evidence “At Global, we specialise in finding exceptional talent in all areas of the quantitative and discretionary finance sectors.” Source: RevenueBase Database · checked Sep 28, 2026
9	Redhat Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “RedHat are financial recruiters for the Media Sector.” Source: RevenueBase Database · checked Sep 28, 2026
10	Skillfinder International	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	46 contacts →
	Indirect evidence “Founded in 2003, Skillfinder International has built a strong reputation as a trusted recruitment partner for the financial services and technology industries.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cameron Kennedy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Since 1997 Cameron Kennedy has established itself as an independent market-leading, recruitment agency by simply over-delivering on quality and value, with integrity.” Source: RevenueBase Database · checked Sep 28, 2026
12	Walters People	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	33 contacts →
	Partial evidence “Walters People are the staffing specialist for tomorrow’s working world.” Source: RevenueBase Database · checked Sep 28, 2026
13	Hamlyn Williams	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	31 contacts →
	Indirect evidence “Placing Talent that Makes A Difference.” Source: RevenueBase Database · checked Sep 28, 2026
14	Trevose Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Trevose Partners was established in 2011 with the specific aim of becoming the global recruiter of choice to financial institutions from all over the world, in providing a true…” Source: RevenueBase Database · checked Sep 28, 2026
15	Venture Search	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “Delivering high-performing recruitment solutions through collaborative partnerships.” Source: RevenueBase Database · checked Sep 28, 2026
16	Edenbrook	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “Edenbrook is an executive recruitment company, set up in 2010 to provide mid - senior level professionals to the global insurance and investment management market.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ikas International	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence “Delivering and developing exceptional talent.” Source: RevenueBase Database · checked Sep 28, 2026
18	Trace Expert Accountancy & Finance Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Established in 2010, we’re an expert Accountancy Recruitment Consultancy covering Commerce & Industry, Financial Services & NFP in London & South East England.” Source: RevenueBase Database · checked Sep 28, 2026
19	Metis Search	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “There’s a reason Metis Search has quickly established itself as a leading provider of recruitment solutions in the finance industry: we put people first.” Source: RevenueBase Database · checked Sep 28, 2026
20	Encore Search	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “With decades of experience and a global network, we specialise in providing exceptional talent solutions across our core markets.” Source: RevenueBase Database · checked Sep 28, 2026
21	Carr Lyons Search & Selection	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Carr‑Lyons is a specialist Financial Services recruitment firm, connecting top talent with leading institutions across the UK and EMEA.” Source: RevenueBase Database · checked Sep 28, 2026
22	Warner Scott Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Warner Scott offers a tailored, consultative approach within Financial and Professional Services.” Source: RevenueBase Database · checked Sep 28, 2026
23	Drayton Finch	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Drayton Finch was founded in 1998 as the first dedicated Buy Side executive search specialist.” Source: RevenueBase Database · checked Sep 28, 2026
24	Carnegie Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Empowering the Finance Industry with Tailored Recruitment Solutions At Carnegie Consulting, we specialise in providing bespoke recruitment services for businesses within the…” Source: RevenueBase Database · checked Sep 28, 2026
25	Maze Executive	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Operating solely in the investment banking, financial services and accounting sectors, we recruit permanent and contract professionals at all levels in the following sectors:*…” 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: investment operations staffing agencies. 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 investment operations staffing agencies.
Partial evidence: Its own public description names part of investment operations staffing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investment operations staffing agencies. 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 335 investment operations staffing agencies based in London, United Kingdom

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Investment operations staffing agencies based in London, United Kingdom at a glance

As of Sep 28, 2026

21.5%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

233

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 335 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 investment operations staffing agencies, 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 London, United Kingdom whose own description of what they do matches “investment operations staffing agencies”. 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 investment operations staffing agencies), 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 investment operations staffing agencies, and records with no verified work email. Companies headquartered outside London 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, 829 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.

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 investment operations staffing agencies, 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 investment operations staffing agencies are there based in London, United Kingdom?

RevenueBase identified 335 investment operations staffing agencies headquartered in London, 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?

IPS Group, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most investment operations staffing agencies?

London leads the United Kingdom with 335 headquartered companies, followed by Manchester (19) and Leeds (16).

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 829 verified decision-maker contacts tracked across these 335 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.