Company lists · Data refreshed September 2026
Top 25 Alternative asset managers based in the United Kingdom
RevenueBase identified 851 alternative asset managers headquartered in the United Kingdom as of September 2026 and tracks 49,593 professional contacts across them, including 23,905 with verified work emails. London is the largest hub.
This list covers alternative asset 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.
The 25 largest alternative asset managers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,398 contacts → | ||||
Indirect evidence “Fidelity International offers investment solutions and services and retirement expertise to more than 2.9 million customers globally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,000 contacts → | ||||
Indirect evidence “At Janus Henderson, we are investors – we help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,774 contacts → | ||||
Strong evidence “M&G Investments is a global asset manager.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,549 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,320 contacts → | ||||
Indirect evidence “Welcome to Aviva Investors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 942 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 723 contacts → | ||||
Partial evidence “Marshall Wace is a leading provider of alternative investment solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 619 contacts → | ||||
Indirect evidence “Content suitable for investment professionals only.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 606 contacts → | ||||
Partial evidence “Whether you want to grow your wealth, generate an income, or leave a legacy to your loved ones, it pays to have a trusted Investment Manager by your side.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 588 contacts → | ||||
Indirect evidence “At Invesco, we have an established tradition of long-term investing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 553 contacts → | ||||
Indirect evidence “Bridgepoint Group is one of the world's leading mid-market investors, specialising in private equity, infrastructure, credit, secondaries and private wealth.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 547 contacts → | ||||
Indirect evidence “Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 481 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 462 contacts → | ||||
Strong evidence “Arrow is a leading European vertically integrated alternative asset manager specialising in private credit and real estate.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 451 contacts → | ||||
Indirect evidence “Federated Hermes is guided by the conviction that responsible investing is the best way to create long-term wealth.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 403 contacts → | ||||
Partial evidence “Seven Investment Management (7IM) is an investment management business that helps individuals, their families and advisers to manage their capital to meet their financial needs…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 378 contacts → | ||||
Strong evidence “LMR Partners is a global alternative investment manager that was founded in November 2009.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 301 contacts → | ||||
Indirect evidence “EPIC Investment Partners is an independent investment, administration and advisory firm.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 284 contacts → | ||||
Partial evidence “Saltus is an independently owned financial planning and investment management company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 277 contacts → | ||||
Strong evidence “Hayfin Capital Management is a leading alternative asset management firm.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 270 contacts → | ||||
Partial evidence “Ashmore is one of the world's leading investment managers dedicated to Emerging Markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 265 contacts → | ||||
Indirect evidence “M&G Real Estate is recognised as one of the world’s leading property investors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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 asset 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 asset managers.
- Partial evidence
- Its own public description names part of alternative asset managers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name alternative asset 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 851 alternative asset managers based in the United Kingdom
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Alternative asset managers based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
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 851 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 asset 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 asset 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 asset 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 asset 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, 23,905 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 asset managers by metro
- Alternative asset managers in London653
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 asset 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 asset managers are there based in the United Kingdom?
RevenueBase identified 851 alternative asset 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?
Fidelity International, headquartered in London London, tops this list with the largest team on record.
Which city has the most alternative asset managers?
London leads with 653 headquartered companies, followed by Edinburgh (15) and London London (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 23,905 verified decision-maker contacts tracked across these 851 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.
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