Company lists · Data refreshed September 2026

Top 25 Alternative investment managers based in the United Kingdom

Name: Alternative investment managers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 459 companies tracked

RevenueBase identified 459 alternative investment managers headquartered in the United Kingdom as of September 2026 and tracks 20,100 professional contacts across them, including 9,821 with verified work emails. London is the largest hub.

This list covers alternative investment managers 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 19, 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 19, 2026 86% judged on-target in blind review

459Companies

20,100Contacts tracked

9,821Verified emails

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The 25 largest alternative investment managers based in the United Kingdom

Ranked by team size

Top 25 of 459 alternative investment managers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to alternative investment managers: 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	MAN Group	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,395 contacts →
	Strong evidence “Man Group is a global alternative investment management firm focused on pursuing outperformance for sophisticated clients via our Systematic, Discretionary and Solutions offerings.” Source: RevenueBase Database · checked Sep 19, 2026
2	Baillie Gifford	Strong evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,549 contacts →
	Strong evidence “We are an independent investment manager founded over a century ago in Edinburgh, owned and run by 59 partners.” Source: RevenueBase Database · checked Sep 19, 2026
3	Jupiter Asset Management	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	942 contacts →
	Partial evidence “Since Jupiter was established in 1985, we have sought to make a positive difference for our clients by helping them achieve their long-term investment objectives through high…” Source: RevenueBase Database · checked Sep 19, 2026
4	ICG	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	797 contacts →
	Strong evidence “ICG (LSE: ICG) is a global alternative asset manager with $126bn* in AUM and more than three decades of experience generating attractive returns.” Source: RevenueBase Database · checked Sep 19, 2026
5	Marshall Wace	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	723 contacts →
	Strong evidence “Marshall Wace is a leading provider of alternative investment solutions.” Source: RevenueBase Database · checked Sep 19, 2026
6	Partners Capital	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	481 contacts →
	Partial evidence “Founded in 2001, Partners Capital is a global investment office acting for distinguished endowments and foundations, senior investment professionals and prominent families across…” Source: RevenueBase Database · checked Sep 19, 2026
7	LMR Partners	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	378 contacts →
	Strong evidence “LMR Partners is a global alternative investment manager that was founded in November 2009.” Source: RevenueBase Database · checked Sep 19, 2026
8	Rokos Capital Management	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	369 contacts →
	Partial evidence “RCM is a global multi-asset investment firm, focused on the pursuit of high, durable risk-adjusted returns for our investors.” Source: RevenueBase Database · checked Sep 19, 2026
9	Hayfin Capital Management LLP	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	277 contacts →
	Strong evidence “Hayfin Capital Management is a leading alternative asset management firm.” Source: RevenueBase Database · checked Sep 19, 2026
10	Caxton Associates	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	249 contacts →
	Partial evidence “Caxton Associates, founded in 1983, is a global trading and investment firm with offices in New York, London, Monaco, Singapore and Dubai.” Source: RevenueBase Database · checked Sep 19, 2026
11	Fisher Investments UK	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	244 contacts →
	Strong evidence “Fisher Investments UK is a private investment advice and management company, offering the discretionary investment management services of our US-based parent company, Fisher…” Source: RevenueBase Database · checked Sep 19, 2026
12	TT International	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	231 contacts →
	Strong evidence “TT International is an alpha-driven specialist investment manager, with a long and successful history of investing for sophisticated institutional clients around the world…” Source: RevenueBase Database · checked Sep 19, 2026
13	Liontrust Asset Management PLC	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	214 contacts →
	Strong evidence “Liontrust is a specialist active asset manager that was founded in 1995 and listed on the London Stock Exchange in Liontrust believes active management and the power of investment…” Source: RevenueBase Database · checked Sep 19, 2026
14	Polar Capital	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	210 contacts →
	Strong evidence “Polar Capital Holdings plc is a specialist investment management company offering professional and institutional investors a range of geographical and sector funds.” Source: RevenueBase Database · checked Sep 19, 2026
15	Cheyne Capital	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	192 contacts →
	Strong evidence “Cheyne Capital is a London-based alternative investment fund manager which was founded in by Jonathan Lourie (CEO & CIO) and Stuart Fiertz (President) after working together at…” Source: RevenueBase Database · checked Sep 19, 2026
16	T. Rowe Price UK	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	5,001-10,000	191 contacts →
	Indirect evidence “T.” Source: RevenueBase Database · checked Sep 19, 2026
17	Algebris Investments	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	183 contacts →
	Partial evidence “We are an independent global asset manager, founded by Davide Serra in 2006.” Source: RevenueBase Database · checked Sep 19, 2026
18	Record	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	118 contacts →
	Partial evidence “Record Financial Group is a leading specialist currency and asset manager with $114.6 billion in Assets Under Management Equivalents (as of 31st March 2026) for institutional…” Source: RevenueBase Database · checked Sep 19, 2026
19	ARINI	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	98 contacts →
	Strong evidence “Arini Capital Management is a specialized alternative asset manager with a diverse credit investment offering across public and private credit, supported by a highly sophisticated…” Source: RevenueBase Database · checked Sep 19, 2026
20	Cain International	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	98 contacts →
	Partial evidence “Cain International ('Cain') is a privately held investment firm focused on real estate and business opportunities that shape the fabric of global gateway cities.” Source: RevenueBase Database · checked Sep 19, 2026
21	Columbia Threadneedle Investments Emea Apac	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	96 contacts →
	Partial evidence “At Columbia Threadneedle Investments, we invest to make a difference in your world, and the wider world.” Source: RevenueBase Database · checked Sep 19, 2026
22	Waverton Investment Management	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	92 contacts →
	Strong evidence “Waverton is an award-winning investment management house dedicated to creating high-quality investment solutions and providing bespoke, personal service for private clients…” Source: RevenueBase Database · checked Sep 19, 2026
23	Square Capital	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	84 contacts →
	Partial evidence “Square Capital is an international and independent asset manager specialized in Quality Investing with offices in Paris, London, Monaco and New York.” Source: RevenueBase Database · checked Sep 19, 2026
24	Quilter Investors	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	78 contacts →
	Strong evidence “At Quilter Investors we specialise in the creation and management of multi-asset investment portfolios.” Source: RevenueBase Database · checked Sep 19, 2026
25	Marathon Asset Management Limited	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Strong evidence “Marathon Asset Management is an independent, privately owned investment management firm based in London.” Source: RevenueBase Database · checked Sep 19, 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: alternative investment managers. 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 alternative investment managers.
Partial evidence: Its own public description names part of alternative investment managers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name alternative investment managers. 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 459 alternative investment managers based in the United Kingdom

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Alternative investment managers based in the United Kingdom at a glance

As of Sep 19, 2026

48.9%Verified-email coverage

43.8Average contacts per company

11-50Median size (employees)

84.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

219

11-50

171

51-200

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 459 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 alternative investment managers, 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 “alternative investment managers”. 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 alternative investment managers), 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 alternative investment managers, 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, 9,821 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 19, 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.

Alternative investment managers by metro

Alternative investment managers in London389

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 alternative investment managers, 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 alternative investment managers are there based in the United Kingdom?

RevenueBase identified 459 alternative investment managers 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?

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

Which city has the most alternative investment managers?

London leads with 389 headquartered companies, followed by Edinburgh (7) and Chester (2).

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 9,821 verified decision-maker contacts tracked across these 459 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 19, 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.