Company lists · Data refreshed September 2026

Top 25 Infrastructure investment firms based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 208 companies tracked

RevenueBase identified 208 company matches for infrastructure investment firms associated with London, United Kingdom as of September 2026 and tracks 21,727 professional contacts across them, including 7,573 with verified work emails and 1,048 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for infrastructure investment firms associated with London, 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 12, 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 12, 2026 How this list was built

208Companies

21,727Contacts tracked

7,573Verified emails

1,048Mobile numbers

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The 25 largest infrastructure investment firms based in London, United Kingdom

Ranked by team size

Top 25 of 208 company matches for infrastructure investment firms based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Balfour Beatty PLC	Exact match	London, United KingdomHQ recorded Sep 12, 2026	10001+	10,507 contacts →
	Exact match “Balfour Beatty is a leading international infrastructure group.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
2	ACTIS	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	493 contacts →
	Exact match “Actis is a leading growth market investor in sustainable infrastructure.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
3	3i Group PLC	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	337 contacts →
	Exact match “3i is a leading international investment company with two complementary businesses, Private Equity and Infrastructure, specialising in core investment markets in northern Europe…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
4	John Laing	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	230 contacts →
	Exact match “John Laing is a leading international investor and active manager of core infrastructure assets.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
5	Equitix	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	223 contacts →
	Exact match “We are a responsible investor, investing in, developing and managing global infrastructure assets, which materially contribute to the lives of the communities they serve.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
6	Infrared Capital Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	197 contacts →
	Exact match “InfraRed is a leading international mid-market infrastructure asset manager.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
7	Vitruvian Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	187 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 12, 2026 · View company records in RevenueBase
8	Amber Infrastructure	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	171 contacts →
	Exact match “Amber is part of Boyd Watterson Global Asset Management Group LLC (‘Boyd’), a global diversified infrastructure, real estate and fixed income business with over $39bn in assets…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
9	Schroders Greencoat LLP	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	119 contacts →
	Exact match “Schroders Greencoat is a specialist investment manager dedicated to renewable infrastructure, with over £8.5 billion under management.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
10	Igneo Infrastructure Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	117 contacts →
	Exact match “Sustainable Value Creation Through Partnership We seek to deliver sustainable returns through investment in mature, stable, infrastructure businesses.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
11	The Private Infrastructure Development Group Pidg	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	107 contacts →
	Exact match “The Private Infrastructure Development Group (PIDG) mobilises private investment in infrastructure in frontier markets, accelerating climate action and sustainable development…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
12	Metallon Corporation	Exact match	London, United KingdomHQ recorded Sep 12, 2026	1,001-5,000	104 contacts →
	Exact match “partners and invests in companies across the natural resources and infrastructure sectors.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
13	Stafford Capital Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	97 contacts →
	Exact match “Stafford Capital Partners ("Stafford") is an independent private markets investment and advisory firm with USD 8.9bn in assets under management and advice for more than 150+…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
14	Arcus Infrastructure Partners LLP	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	91 contacts →
	Exact match “Founded in 2009, Arcus is an independent infrastructure fund manager with a focus on the European mid-market.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
15	Centrus	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	86 contacts →
	Exact match “Real Assets.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
16	Infrata, A DSS Company	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	85 contacts →
	Exact match “Infrata bridges the gap between infrastructure projects and investors.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
17	Icon Infrastructure LLP	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	78 contacts →
	Exact match “iCON is an independent investment group with $12 billion in funds under management.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
18	Sustainable Development Capital, LLP Sdcl	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	74 contacts →
	Exact match “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
19	Transmission Investment	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	55 contacts →
	Exact match “Transmission Investment is a leading independent energy and utility investment and advisory business with ten years of history in developing, acquiring and managing electricity…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
20	AGC Equity Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	52 contacts →
	Exact match “AGC Equity Partners is a global alternative asset investment firm operating from offices in London and the Middle East.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
21	Ancala	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	51 contacts →
	Exact match “Ancala is a leading independent and award-winning infrastructure manager that delivers infrastructure investment differently.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
22	Infracapital	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	50 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
23	Arjun Infrastructure Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	48 contacts →
	Exact match “Arjun Infrastructure Partners is an independent European infrastructure fund manager with €7.6bn AUM.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
24	Basalt Infrastructure Partners	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	47 contacts →
	Exact match “Basalt is a dedicated mid-market infrastructure equity investment firm focusing on investments in power & renewables, utilities, transport and communications & digital…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
25	Amberside Advisors	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	44 contacts →
	Exact match “Amberside Advisors is an independent consultancy providing financial and commercial advice to low carbon energy, infrastructure and public sector projects.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure investment firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 208 infrastructure investment firms based in London, United Kingdom

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Infrastructure investment firms based in London, United Kingdom at a glance

As of Sep 12, 2026

34.9%Verified-email coverage

4.8%Mobile-number coverage

104.5Average contacts per company

11-50Median size (employees)

Sep 12, 2026Page data 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+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

6,4350–30

1,08231–60

2761–90

690–180

23180+

Company record updated

Median 77.0d

00–30

7,06931–60

11,12161–90

2,61490–180

923180+

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 London, United Kingdom whose business descriptions match “infrastructure investment firms” 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 7,573 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 12, 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 “infrastructure investment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 208 company matches for infrastructure investment firms associated with London, 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?

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

Which city in the United Kingdom has the most infrastructure investment firms?

London leads the United Kingdom with 156 company records, 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 limited free results with 500 credits to start. Upgrading provides access to the 7,573 professional contacts with verified work emails tracked across these 208 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 12, 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.