Company lists · Data refreshed September 2026

Top 25 Business services private equity investors based in the United Kingdom

RevenueBase identified 851 business services private equity investors headquartered in the United Kingdom as of September 2026 and tracks 10,557 professional contacts across them, including 5,543 with verified work emails. London is the largest hub.

This list covers business services private equity investors 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 27, 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 27, 2026 86% judged on-target in blind review
851Companies
10,557Contacts tracked
5,543Verified emails
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The 25 largest business services private equity investors based in the United Kingdom

Ranked by team size
Top 25 of 851 business services private equity investors based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business services private equity investors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026501-1,000629 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500384 contacts →

Indirect evidence

“Clearwater is an independent corporate finance house focused on unlocking the latent potential in every business.”

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500376 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500328 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500301 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500294 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 27, 202651-200276 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500273 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202651-200250 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
10Strong evidenceLondon, United KingdomHQ checked Sep 27, 2026201-500214 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceMaidenhead, United KingdomHQ checked Sep 27, 2026201-500157 contacts →

Partial evidence

“Accounting - Tax - Corporate Finance To the entrepreneurs, business owners and investors who are the lifeblood of UK business.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202651-200141 contacts →

Indirect evidence

“Keensight Capital (“Keensight”), one of the leading European Growth Buyout firms, is committed to supporting entrepreneurs as they implement their growth strategies.”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-200116 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202651-200109 contacts →

Indirect evidence

“Terra Firma drives value creation.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20098 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceManchester, United KingdomHQ checked Sep 27, 2026501-1,00097 contacts →

Indirect evidence

“K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceNewbury, United KingdomHQ checked Sep 27, 202611-5095 contacts →

Partial evidence

“Initium is a specialist sell-side corporate finance firm advising founders and shareholders of ambitious, privately owned businesses on company sales, exit planning and building…”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidencePreston, United KingdomHQ checked Sep 27, 202651-20085 contacts →

Indirect evidence

“Here at Altius Group, we’ve been helping businesses buy, grow and sell for over 40 years.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20083 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 27, 2026
20Strong evidenceLeeds, United KingdomHQ checked Sep 27, 202651-20081 contacts →

Strong evidence

“YFM Equity Partners are specialist, independently owned, private equity investors.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202611-5079 contacts →

Indirect evidence

“We are SI Global.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20078 contacts →

Strong evidence

“Established in CapVest is a leading mid-market private equity firm headquartered in London.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 27, 202651-20074 contacts →

Partial evidence

“At Tenzing, we're not just investors; we're partners on a mission.”

Source: RevenueBase Database · checked Sep 27, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20071 contacts →

Strong evidence

“Charterhouse is one of the longest established private equity firms operating in Europe.”

Source: RevenueBase Database · checked Sep 27, 2026
25Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20067 contacts →

Strong evidence

“ECI is a leading private equity investor, focussed on offering collaborative support to management teams.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 851 business services private equity investors based in the United Kingdom

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Business services private equity investors based in the United Kingdom at a glance

As of Sep 27, 2026
52.5%Verified-email coverage
12.4Average contacts per company
1-10Median size (employees)
62.4%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
555
11-50
231
51-200
39
201-500
16
501-1,000
4
1,001-5,000
3
10001+
1

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 business services private equity investors, 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 “business services private equity investors”. 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 business services private equity investors), 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 business services private equity investors, 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, 5,543 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 27, 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 business services private equity investors, 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 business services private equity investors are there based in the United Kingdom?

RevenueBase identified 851 business services private equity investors 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?

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

Which city has the most business services private equity investors?

London leads with 531 headquartered companies, followed by Manchester (20) and Birmingham (19).

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 5,543 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 27, 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.