Company lists · Data refreshed September 2026

Top 25 Investment holding companies based in the United Kingdom

Name: Investment holding companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 144 companies tracked

RevenueBase identified 144 investment holding companies headquartered in the United Kingdom as of September 2026 and tracks 1,324 professional contacts across them, including 224 with verified work emails. London is the largest hub.

This list covers investment holding companies 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 20, 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 20, 2026 86% judged on-target in blind review

144Companies

1,324Contacts tracked

224Verified emails

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The 25 largest investment holding companies based in the United Kingdom

Ranked by team size

Top 25 of 144 investment holding companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to investment holding companies: 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	Venator Materials PLC	Indirect evidence	Wynyard Park, United KingdomHQ checked Sep 20, 2026	1,001-5,000	704 contacts →
	Indirect evidence “On 22 October 2025, Mark Firmin, Jonny Marston and Helen Skeates, of global professional services firm Alvarez & Marsal, were appointed joint administrators of Venator Materials…” Source: RevenueBase Database · checked Sep 20, 2026
2	Sturrock And Robson Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	33 contacts →
	Indirect evidence “We are a fourth generation family business, who own and operate a portfolio of companies within the industrial sector.” Source: RevenueBase Database · checked Sep 20, 2026
3	Centricus	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	25 contacts →
	Partial evidence “Centricus is a London-based global investment firm focused on Advisory, Private Equity and Asset Management.” Source: RevenueBase Database · checked Sep 20, 2026
4	Quantum Pacific	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “The Quantum Pacific Group is an international assemblage of growth-oriented businesses with interests across a broad range of industries and geographies.” Source: RevenueBase Database · checked Sep 20, 2026
5	Neverwhatif Group	Partial evidence	Witham, United KingdomHQ checked Sep 20, 2026	51-200	16 contacts →
	Partial evidence “NeverWhatIf is a holding company responsible for a variety of start-ups, growing companies and established enterprises.” Source: RevenueBase Database · checked Sep 20, 2026
6	Enigma Group LTD	Indirect evidence	Romford, United KingdomHQ checked Sep 20, 2026	501-1,000	16 contacts →
	Indirect evidence “Enigma Group Ltd is the parent company for a diverse range of businesses operating under the Enigma brand.” Source: RevenueBase Database · checked Sep 20, 2026
7	Marches Business Group	Indirect evidence	Llandrindod Wells, United KingdomHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “We are a diverse business group specialising in building strong teams, product sourcing, manufacturing, and distribution.” Source: RevenueBase Database · checked Sep 20, 2026
8	Bushell Investment Group	Partial evidence	Birmingham, United KingdomHQ checked Sep 20, 2026	51-200	14 contacts →
	Partial evidence “Centrally managed in Birmingham, BIG is a fast paced and forward-thinking investment group with a vast and diverse portfolio.” Source: RevenueBase Database · checked Sep 20, 2026
9	Convolo Group	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “Convolo Group Limited is a private, UK-based holding company focused on building a diversified group of high-quality businesses with significant Asia-Pacific operations and global…” Source: RevenueBase Database · checked Sep 20, 2026
10	KMP Group	Partial evidence	Stanmore, United KingdomHQ checked Sep 20, 2026	1-10	12 contacts →
	Partial evidence “KMP Group is a family office that manages a diverse portfolio of property, private equity & franchise investments.” Source: RevenueBase Database · checked Sep 20, 2026
11	GP Green Power Holding	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	12 contacts →
	Partial evidence “Green Power (GP) Holding is set to make the world a better place and to create better opportunities through effective use of innovation, technology, creativity, diversity, and…” Source: RevenueBase Database · checked Sep 20, 2026
12	Applerigg Limited	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Applerigg was formed in 2001 to oversee the management of the corporate portfolio of a family-owned group.” Source: RevenueBase Database · checked Sep 20, 2026
13	DEL Vigna Dobson LTD	Partial evidence	Manchester, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “DEL VIGNA DOBSON LIMITED is an investment management company.” Source: RevenueBase Database · checked Sep 20, 2026
14	Castelnau Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Castelnau Group Limited was formed by Phoenix Asset Management Partners and listed on the SFS (Specialist Fund Segment) of the LSE on the 18th October 2021.” Source: RevenueBase Database · checked Sep 20, 2026
15	Clusternanotech LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “Clusternanotech LTD is a mixed operating financial holding; a company that carries out the activity of management of shareholdings and control of subsidiaries, guaranteeing them…” Source: RevenueBase Database · checked Sep 20, 2026
16	Worth Capital	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Worth Capital are not currently investing in start-up businesses.” Source: RevenueBase Database · checked Sep 20, 2026
17	Unison Investments	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “Unison Investments is dedicated to becoming a leading industrial and distribution conglomerate, managing market-leading businesses across various sectors.” Source: RevenueBase Database · checked Sep 20, 2026
18	BTC Hospitality Investments	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “Business Trading Company UK (BTC UK) is a holding and investment company, specialising in the hospitality and real estate sectors in the UK.” Source: RevenueBase Database · checked Sep 20, 2026
19	Hamilton Global Opportunities	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “Publicly listed investment holding company.” Source: RevenueBase Database · checked Sep 20, 2026
20	KEY West Holdings	Strong evidence	Bristol, United KingdomHQ checked Sep 20, 2026	1-10	5 contacts →
	Strong evidence “Key West Holdings is active across a diverse portfolio of investments.” Source: RevenueBase Database · checked Sep 20, 2026
21	Astra Holding Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “We acquire exceptional businesses.” Source: RevenueBase Database · checked Sep 20, 2026
22	Bamuk Group LTD	Partial evidence	Maidstone, United KingdomHQ checked Sep 20, 2026	51-200	4 contacts →
	Partial evidence “BAMUK Group is an innovative holding company that acquires control positions in companies focused on manufacturing and designing products in various commercial and…” Source: RevenueBase Database · checked Sep 20, 2026
23	Audasi Holdings LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	4 contacts →
	Partial evidence “The Audasi group is a privately owned holding company who specialise in acquiring and developing Small to Medium Enterprises (SME’s).” Source: RevenueBase Database · checked Sep 20, 2026
24	Latep Holdings	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
25	Equityway Holdings LTD	Partial evidence	Knutsford, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Equityway Holdings Ltd is a recently established holding group of companies with a strong emphasis on Construction & Property.” Source: RevenueBase Database · checked Sep 20, 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: investment holding companies. 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 investment holding companies.
Partial evidence: Its own public description names part of investment holding companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investment holding companies. 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 144 investment holding companies based in the United Kingdom

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Investment holding companies based in the United Kingdom at a glance

As of Sep 20, 2026

16.9%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

49.3%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 144 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 investment holding companies, 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 “investment holding companies”. 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 investment holding companies), 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 investment holding companies, 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, 224 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 20, 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.

Investment holding companies by metro

Investment holding companies in London71

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 investment holding companies, 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 investment holding companies are there based in the United Kingdom?

RevenueBase identified 144 investment holding companies 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?

Venator Materials PLC, headquartered in Stockton On Tees, tops this list with the largest team on record.

Which city has the most investment holding companies?

London leads with 71 headquartered companies, followed by Birmingham (3) and Manchester (3).

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 224 verified decision-maker contacts tracked across these 144 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 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 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.