Company lists · Data refreshed September 2026

Top 25 Private investment companies based in the United Kingdom

RevenueBase identified 737 company matches for private investment companies associated with the United Kingdom as of September 2026 and tracks 12,255 professional contacts across them, including 6,295 with verified work emails. London is the largest hub.

This list covers company matches for private investment companies 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 September 20, 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 Sep 20, 2026 How this list was built
737Companies
12,255Contacts tracked
6,295Verified emails
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The 25 largest private investment companies based in the United Kingdom

Ranked by team size
Top 25 of 737 company matches for private investment companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchLondon, United KingdomHQ recorded Sep 20, 2026501-1,000629 contacts →

Exact match

“Permira is a global investment firm that backs successful businesses with growth ambitions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWest End, United KingdomHQ recorded Sep 20, 2026201-500553 contacts →

Exact match

“Bridgepoint Group is one of the world's leading mid-market investors, specialising in private equity, infrastructure, credit, secondaries and private wealth.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500547 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200536 contacts →

Exact match

“For over 40 years, LDC has been the trusted investment partner for ambitious management teams.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500376 contacts →

Exact match

“Coller Capital, founded in 1990, is one of the world's leading investors in the secondary market for private assets – and widely acknowledged as an innovator in secondaries.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500337 contacts →

Exact match

“Campbell Lutyens is the world’s leading independent private capital advisor.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500328 contacts →

Exact match

“AURELIUS is a global alternative investor, distinguished and widely recognised for its operational approach.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500301 contacts →

Exact match

“EPIC Investment Partners is an independent investment, administration and advisory firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500294 contacts →

Exact match

“We are a leading pure-play, international private equity firm that has been investing for nearly 50 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200276 contacts →

Exact match

“BGF is the most active and influential investor in small and mid-sized businesses in the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500273 contacts →

Exact match

“IK Partners (“IK”) is a European private equity firm focused on investments in the Benelux, DACH, France, Nordics and the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200250 contacts →

Exact match

“Founded over 20 years ago, Oakley Capital was established to be the partner of choice for exceptional founders and entrepreneurs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500248 contacts →

Exact match

“Investindustrial is a leading European investment firm, founded in 1990, with €17 billion of raised fund capital.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-500214 contacts →

Exact match

“Inflexion is a leading European mid-market private equity firm with €20bn under management investing in high growth, entrepreneurial businesses with ambitious management teams and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200187 contacts →

Exact match

“Vitruvian Partners is an international investment firm that supports the most ambitious and talented entrepreneurs and higher growth companies to achieve their goals.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200163 contacts →

Exact match

“Rede Partners is the private markets specialist, partnering with leading GPs to deliver integrated, multi-disciplinary services across primary fundraising, capital solutions and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchEdinburgh, United KingdomHQ recorded Sep 20, 202651-200130 contacts →

Exact match

“Welcome to Walter Scott.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200120 contacts →

Exact match

“TH Global Capital is an award-winning global investment banking firm specializing in sector-focused investment banking and growth advisory services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200116 contacts →

Exact match

“Tigbourne Capital is a distinguished private equity firm founded in 2011, headquartered in the UK and boasting a robust footprint across the USA, Europe, and the Arabian Gulf.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200111 contacts →

Exact match

“CVC Secondary Partners is a private equity strategy focused on secondary private markets globally.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200109 contacts →

Exact match

“Terra Firma drives value creation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20098 contacts →

Exact match

“EMK Capital is a growth-focused private equity firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20098 contacts →

Exact match

“Livingbridge is a leading mid-market private equity firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 20, 2026201-50091 contacts →

Exact match

“Bregal is a global investment platform that partners with and builds exceptional private markets teams.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-20083 contacts →

Exact match

“MML is an international mid-market private equity investor focused on investing alongside strong management teams and working in partnership with them to deliver their bold…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 737 private investment companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 6,295 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Private investment companies based in the United Kingdom at a glance

As of Sep 20, 2026
51.4%Verified-email coverage
16.6Average contacts per company
1-10Median size (employees)
73.5%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
432
11-50
215
51-200
51
201-500
22
501-1,000
5
1,001-5,000
4
10001+
2

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 737 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 “private investment companies” 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 6,295 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 September 20, 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 “private investment companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many private investment companies are there based in the United Kingdom?

RevenueBase identified 737 company matches for private investment companies associated with the United Kingdom as of September 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?

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

Which city has the most private investment companies?

London leads with 542 company records, followed by Birmingham (10) and Leeds (9).

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 6,295 professional contacts with verified work emails tracked across these 737 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 September 20, 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.