Company lists · Data refreshed September 2026

Top 25 Lower middle market private equity firms based in the United Kingdom

RevenueBase identified 775 lower middle market private equity firms headquartered in the United Kingdom as of September 2026 and tracks 14,449 professional contacts across them, including 7,625 with verified work emails and 1,231 with mobile numbers. London is the largest hub.

This list covers lower middle market private equity firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
775Companies
14,449Contacts tracked
7,625Verified emails
1,231Mobile numbers
Unlock all 775 companies Free signup · no credit card · 500 free credits

The 25 largest lower middle market private equity firms based in the United Kingdom

Ranked by team size
Top 25 of 775 lower middle market private equity firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lower middle market private equity firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
ICGIndirect evidence
London, United KingdomHQ checked Sep 4, 2026501-1,000797

“ICG (LSE: ICG) is a global alternative asset manager with $126bn* in AUM and more than three decades of experience generating attractive returns.”

Source: company website · checked Sep 4, 2026
2
PermiraIndirect evidence
London, United KingdomHQ checked Sep 4, 2026501-1,000629

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

Source: company website · checked Sep 4, 2026
3
Bridgepoint GroupStrong evidence
West End, United KingdomHQ checked Sep 4, 2026201-500553

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

Source: company website · checked Sep 4, 2026
4
LDCIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200536

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

Source: company website · checked Sep 4, 2026
5
Privet Capital LLPIndirect evidence
London, United KingdomHQ checked Sep 4, 2026n/a469

“We identify the hidden value in companies that are often in challenging or complex situations, but have a strong core offering.”

Source: company website · checked Sep 4, 2026
6
Coller CapitalStrong evidence
London, United KingdomHQ checked Sep 4, 2026201-500376

“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: company website · checked Sep 4, 2026
7
3i Group PLCStrong evidence
London, United KingdomHQ checked Sep 4, 2026201-500337

“3i is a leading international investment company with two complementary businesses, Private Equity and Infrastructure, specialising in core investment markets in northern Europe…”

Source: company website · checked Sep 4, 2026
8
BC PartnersIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200333

“BC Partners is an international investment firm that offers select, focused investment strategies designed to complement each other and create synergies that benefit our investors.”

Source: company website · checked Sep 4, 2026
9
AureliusIndirect evidence
London, United KingdomHQ checked Sep 4, 2026201-500328

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

Source: company website · checked Sep 4, 2026
10
Epic Investment PartnersIndirect evidence
London, United KingdomHQ checked Sep 4, 2026201-500301

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

Source: company website · checked Sep 4, 2026
11
CinvenStrong evidence
London, United KingdomHQ checked Sep 4, 2026201-500294

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

Source: company website · checked Sep 4, 2026
12London, United KingdomHQ checked Sep 4, 2026201-500277

“Hayfin Capital Management is a leading alternative asset management firm.”

Source: company website · checked Sep 4, 2026
13
BGFIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200276

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

Source: company website · checked Sep 4, 2026
14
IK PartnersStrong evidence
London, United KingdomHQ checked Sep 4, 2026201-500273

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

Source: company website · checked Sep 4, 2026
15
Triple PointIndirect evidence
London, United KingdomHQ checked Sep 4, 2026201-500258

“Triple Point believes in the power of connections.”

Source: company website · checked Sep 4, 2026
16
InvestindustrialIndirect evidence
London, United KingdomHQ checked Sep 4, 2026201-500248

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

Source: company website · checked Sep 4, 2026
17
InflexionStrong evidence
London, United KingdomHQ checked Sep 4, 2026201-500214

“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: company website · checked Sep 4, 2026
18
Vitruvian PartnersIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200187

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

Source: company website · checked Sep 4, 2026
19
Park Square CapitalStrong evidence
London, United KingdomHQ checked Sep 4, 202651-200153

“Park Square Capital is one of Europe’s leading private credit investors, providing mid-market direct loans, large-sized senior debt and junior capital solutions to high-quality…”

Source: company website · checked Sep 4, 2026
20
Walter ScottIndirect evidence
Edinburgh, United KingdomHQ checked Sep 4, 202651-200130

“Welcome to Walter Scott.”

Source: company website · checked Sep 4, 2026
21
CVC Secondary PartnersStrong evidence
London, United KingdomHQ checked Sep 4, 202651-200111

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

Source: company website · checked Sep 4, 2026
22
TDR CapitalStrong evidence
London, United KingdomHQ checked Sep 4, 202651-200109

“TDR is a leading private equity firm with over €16 billion of assets under management and typically invests in strong European companies that are leaders in their markets.”

Source: company website · checked Sep 4, 2026
23
Terra FirmaIndirect evidence
London, United KingdomHQ checked Sep 4, 202651-200109

“Terra Firma drives value creation.”

Source: company website · checked Sep 4, 2026
24
EMK CapitalStrong evidence
London, United KingdomHQ checked Sep 4, 202651-20098

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

Source: company website · checked Sep 4, 2026
25
LivingbridgeStrong evidence
London, United KingdomHQ checked Sep 4, 202651-20098

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

Source: company website · checked Sep 4, 2026

Showing 25 of 775 lower middle market private equity firms based in the United Kingdom

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Lower middle market private equity firms based in the United Kingdom at a glance

As of Sep 4, 2026
1-10Median size (employees)
LondonLargest hub · 555 HQs
1,231Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
439
11-50
236
51-200
55
201-500
26
501-1,000
9
1,001-5,000
5
5,001-10,000
1
10001+
2

Verified emails by last verification

0–30
7,199
31–60
393
61–90
3
90–180
5
180+
25

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 lower middle market private equity firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “lower middle market private equity firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among lower middle market private equity firms, 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 an evidence 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, 7,625 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 4, 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.

Lower middle market private equity firms by metro

  • Lower middle market private equity firms in London555

Frequently asked

How many lower middle market private equity firms are there based in the United Kingdom?

RevenueBase identified 775 lower middle market private equity firms 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?

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

Which city has the most lower middle market private equity firms?

London leads with 555 headquartered companies, followed by Birmingham (10) and Leeds (10).

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 7,625 verified decision-maker contacts tracked across these 775 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 4, 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.