Company lists · Data refreshed September 2026

Top 24 Infrastructure investment firms based in the United Kingdom

Name: Infrastructure investment firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 201 companies tracked

RevenueBase identified 201 infrastructure investment firms headquartered in the United Kingdom as of September 2026 and tracks 15,295 professional contacts across them, including 6,301 with verified work emails and 971 with mobile numbers. London is the largest hub.

This list covers infrastructure investment 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 3, 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 3, 2026 86% judged on-target in blind review

201Companies

15,295Contacts tracked

6,301Verified emails

971Mobile numbers

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The 24 largest infrastructure investment firms based in the United Kingdom

Ranked by team size

Top 24 of 201 infrastructure investment firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure investment 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.
#	Company	Headquarters	Employees	Contacts
1	Balfour Beatty PLCPartial evidence	London, United KingdomHQ checked Sep 3, 2026	10001+	10,560
	“Balfour Beatty is a leading international infrastructure group.” Source: company website · checked Sep 3, 2026
2	ACTISPartial evidence	London, United KingdomHQ checked Sep 3, 2026	201-500	508
	“Actis is a leading growth market investor in sustainable infrastructure.” Source: company website · checked Sep 3, 2026
3	National Wealth FundIndirect evidence	Leeds, United KingdomHQ checked Sep 3, 2026	201-500	324
	“We have £27.8bn to invest and we are focused on mobilising private capital around the Government’s strategic priorities, enabling the market to invest with confidence.” Source: company website · checked Sep 3, 2026
4	EquitixPartial evidence	London, United KingdomHQ checked Sep 3, 2026	201-500	221
	“We are a responsible investor, investing in, developing and managing global infrastructure assets, which materially contribute to the lives of the communities they serve.” Source: company website · checked Sep 3, 2026
5	Infrared Capital PartnersPartial evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	194
	“InfraRed is a leading international mid-market infrastructure asset manager.” Source: company website · checked Sep 3, 2026
6	Amber InfrastructurePartial evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	172
	“Amber is a specialist international investment manager, focused on investment origination, asset management and fund management.” Source: company website · checked Sep 3, 2026
7	The Private Infrastructure Development Group PidgStrong evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	106
	“The Private Infrastructure Development Group (PIDG) mobilises private investment in infrastructure in frontier markets, accelerating climate action and sustainable development…” Source: company website · checked Sep 3, 2026
8	Metallon CorporationPartial evidence	London, United KingdomHQ checked Sep 3, 2026	1,001-5,000	104
	“partners and invests in companies across the natural resources and infrastructure sectors.” Source: company website · checked Sep 3, 2026
9	Infrata, A DSS CompanyPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	85
	“Infrata bridges the gap between infrastructure projects and investors.” Source: company website · checked Sep 3, 2026
10	Semperian PPP Investment PartnersIndirect evidence	Bristol, United KingdomHQ checked Sep 3, 2026	51-200	82
	“Semperian owns and manages over 100 assets with a value of £1.3 billion.” Source: company website · checked Sep 3, 2026
11	Icon Infrastructure LLPPartial evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	80
	“iCON is an independent investment group with $12 billion in funds under management.” Source: company website · checked Sep 3, 2026
12	GLP EuropeStrong evidence	Londres, United KingdomHQ checked Sep 3, 2026	51-200	73
	“GLP is a leading global investment manager and business builder in logistics, real estate, infrastructure, finance and related technologies.” Source: company website · checked Sep 3, 2026
13	AGC Equity PartnersPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	52
	“AGC Equity Partners is a global alternative asset investment firm operating from offices in London and the Middle East.” Source: company website · checked Sep 3, 2026
14	AncalaStrong evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	51
	“Ancala is a leading independent and award-winning infrastructure manager that delivers infrastructure investment differently.” Source: company website · checked Sep 3, 2026
15	The Peel GroupStrong evidence	United KingdomHQ checked Sep 3, 2026	11-50	51
	“One of the leading infrastructure, transport and real estate investors in the UK, with collective investments owned and under management of more than £5 billion.” Source: company website · checked Sep 3, 2026
16	InfracapitalStrong evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	50
	“Infracapital invests in, builds and manages a diverse range of essential infrastructure to meet the changing needs of society and deliver the significant investment required to…” Source: company website · checked Sep 3, 2026
17	Basalt Infrastructure PartnersStrong evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	48
	“Basalt is a dedicated mid-market infrastructure equity investment firm focusing on investments in power & renewables, utilities, transport and communications & digital…” Source: company website · checked Sep 3, 2026
18	Arjun Infrastructure PartnersPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	47
	“Arjun Infrastructure Partners is an independent European infrastructure fund manager with €7.6bn AUM.” Source: company website · checked Sep 3, 2026
19	GravisPartial evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	43
	“At Gravis we believe in a long-term approach to investment.” Source: company website · checked Sep 3, 2026
20	Zouk Capital LLPPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	38
	“Zouk Capital is a fund manager focused on the opportunities emerging at the intersection of infrastructure, technology and sustainability.” Source: company website · checked Sep 3, 2026
21	Pathfinder Clean Energy Pace LimitedPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	35
	“Pathfinder Clean Energy (or PACE) is a clean infrastructure developer and investor.” Source: company website · checked Sep 3, 2026
22	EOS Investment Management GroupPartial evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	33
	“EOS Investment Management Group (“EOS IM Group”) is a leading independent international fund management group, specialising in alternative asset sector.” Source: company website · checked Sep 3, 2026
23	ERG International GroupIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	33
	“Since incorporation in 1972, we have completed numerous significant projects in the power, water and transportation sectors.” Source: company website · checked Sep 3, 2026
24	Dalmore Capital LimitedStrong evidence	Edinburgh, United KingdomHQ checked Sep 3, 2026	11-50	32
	“Dalmore Capital is an infrastructure fund management company that seeks to provide its institutional investors with access to long-term investment opportunities in limited…” Source: company website · checked Sep 3, 2026

Showing 24 of 201 infrastructure investment firms based in the United Kingdom

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Infrastructure investment firms based in the United Kingdom at a glance

As of Sep 3, 2026

11-50Median size (employees)

LondonLargest hub · 156 HQs

971Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

504

61–90

3,551

90–180

2,224

180+

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 infrastructure investment 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 “infrastructure investment 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 infrastructure investment 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, 6,301 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 3, 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.

Infrastructure investment firms by metro

Infrastructure investment firms in London156

Frequently asked

How many infrastructure investment firms are there based in the United Kingdom?

RevenueBase identified 201 infrastructure investment 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?

Balfour Beatty PLC, headquartered in London, tops this list with the largest team on record.

Which city has the most infrastructure investment firms?

London leads with 156 headquartered companies, followed by Leeds (4) and Belfast (2).

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 6,301 verified decision-maker contacts tracked across these 201 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 3, 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.