Company lists · Data refreshed September 2026

Top 25 Sustainable infrastructure investment firms worldwide

RevenueBase identified 3,662 sustainable infrastructure investment firms worldwide as of September 2026 and tracks 112,875 professional contacts across them, including 29,437 with verified work emails. The United States is the largest market and London the largest hub.

This list covers sustainable infrastructure investment firms worldwide, 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 29, 2026. Country and city lists for sustainable infrastructure investment firms follow the table.

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 29, 2026 86% judged on-target in blind review
3,662Companies
112,875Contacts tracked
29,437Verified emails
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The 25 largest sustainable infrastructure investment firms worldwide

Ranked by team size
Top 25 of 3,662 sustainable infrastructure investment firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable infrastructure investment firms: 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 evidenceMadrid, SpainHQ checked Sep 29, 202610001+27,028 contacts →

Indirect evidence

“ACCIONA champions a different way of doing business: Business as Unusual, delivering benefits far beyond the corporate realm.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceNorwalk, CT, United StatesHQ checked Sep 29, 20265,001-10,0007,253 contacts →

Partial evidence

“Every year, the infrastructure that powers our homes, transports our products, heals our loved ones, and keeps our societies moving forward needs a trillion dollars more…”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceMadrid, SpainHQ checked Sep 29, 202610001+4,227 contacts →

Strong evidence

“We work to ensure society advances toward a sustainable future through the development and management of infrastructures that have a positive social, economic, and environmental…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceSingaporeHQ checked Sep 29, 20261,001-5,0003,452 contacts →

Indirect evidence

“Sembcorp Industries (Sembcorp) is a leading energy and urban solutions provider, led by its purpose to drive energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceRiyadh, Saudi ArabiaHQ checked Sep 29, 202610001+1,740 contacts →

Partial evidence

“Algihaz Holding is a Saudi Arabian investment group that has emerged as a leading organization since 1975.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceSão Paulo, BrazilHQ checked Sep 29, 2026n/a1,471 contacts →

Indirect evidence

“Temos vocação para transformar oportunidades em negócios que geram valor.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 2026501-1,0001,090 contacts →

Partial evidence

“CIM is a community-focused real estate and infrastructure owner, operator, lender and developer.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceSao Paulo, BrazilHQ checked Sep 29, 2026501-1,000988 contacts →

Indirect evidence

“Na CTG Brasil, trabalhamos por um único propósito: desenvolver o mundo com energia limpa em larga escala.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceSão Paulo, BrazilHQ checked Sep 29, 20265,001-10,000875 contacts →

Indirect evidence

“Em quase cinco décadas de atuação, a Engeform consolidou a ideia de que o desenvolvimento das pessoas, a cultura corporativa e a busca contínua do aprimoramento da gestão são os…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000820 contacts →

Indirect evidence

“General Atlantic is a leading global investor with more than four and a half decades of experience providing capital and strategic support to over 830 companies throughout its…”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceSingaporeHQ checked Sep 29, 202610001+820 contacts →

Strong evidence

“Keppel is a global asset manager and operator with strong expertise in sustainability-related solutions spanning the areas of infrastructure, real estate and connectivity.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceParis, ItalyHQ checked Sep 29, 2026501-1,000643 contacts →

Partial evidence

“The La Française group offers conviction-based management that combines performance targets and sustainability objectives across all asset classes.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceAugsburg, GermanyHQ checked Sep 29, 2026501-1,000597 contacts →

Partial evidence

“PATRIZIA has been providing investment opportunities in smart real assets for institutional, semi-professional, and private investors for more than 40 years, focusing on real…”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceStamford, CT, United StatesHQ checked Sep 29, 2026201-500592 contacts →

Partial evidence

“Castleton Commodities International is at the cutting edge of energy trading and infrastructure asset investing backed by the best minds in the industry and powered by deep…”

Source: RevenueBase Database · checked Sep 29, 2026
15Strong evidenceRiyadh, Saudi ArabiaHQ checked Sep 29, 2026201-500590 contacts →

Strong evidence

“A leading company in real estate investment and asset management, offering advanced and sustainable solutions that deliver long-term returns in partnership with top developers and…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceHobro, DenmarkHQ checked Sep 29, 2026501-1,000579 contacts →

Indirect evidence

“Eurowind Energy develops, constructs, and operates renewable energy parks.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceUnited StatesHQ checked Sep 29, 2026201-500573 contacts →

Partial evidence

“Global Infrastructure Partners (GIP) is a leading infrastructure investor that specializes in investing in, owning and operating some of the largest and most complex assets across…”

Source: RevenueBase Database · checked Sep 29, 2026
18Strong evidenceBangalore, IndiaHQ checked Sep 29, 2026501-1,000564 contacts →

Strong evidence

“RMZ is a diversified, global alternative asset owner, committed to making strategic investments in high-growth opportunities that support the development of a sustainable global…”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500537 contacts →

Partial evidence

“Founded in 1984, Foresight is a leading investment manager in real assets and capital for growth, operating across Europe, Australia, and the United States.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceSingaporeHQ checked Sep 29, 20261,001-5,000536 contacts →

Partial evidence

“Cube Highways is a Singapore-based company investing in road and highway projects, along with other select infrastructure sectors in India.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,000503 contacts →

Strong evidence

“Atlantica is a sustainable infrastructure company that owns, manages, develops, builds and invests in renewable energy, storage, efficient natural gas and heat, transmission lines…”

Source: RevenueBase Database · checked Sep 29, 2026
22Strong evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500493 contacts →

Strong evidence

“Actis is a leading growth market investor in sustainable infrastructure.”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500478 contacts →

Strong evidence

“Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceMiami, FL, United StatesHQ checked Sep 29, 2026201-500428 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceHamburg, GermanyHQ checked Sep 29, 2026201-500412 contacts →

Partial evidence

“Aquila Capital is an asset manager specialising in essential investments.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 3,662 sustainable infrastructure investment firms worldwide

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Sustainable infrastructure investment firms worldwide at a glance

As of Sep 29, 2026
26.1%Verified-email coverage
30.8Average contacts per company
11-50Median size (employees)
7.1%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,808
11-50
1,185
51-200
399
201-500
134
501-1,000
59
1,001-5,000
43
5,001-10,000
11
10001+
13

Email recency is reported on each country list linked below.

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 sustainable infrastructure investment firms, 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.
Coverage
Every country. Country and city lists for sustainable infrastructure investment firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “sustainable infrastructure investment firms”. 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 sustainable infrastructure investment firms), 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 sustainable infrastructure investment firms, and records with no verified work email.
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, 29,437 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 29, 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.

Sustainable infrastructure investment firms by location

30 lists · largest first

Every Sustainable infrastructure investment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 sustainable infrastructure investment firms, 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 sustainable infrastructure investment firms are there worldwide?

RevenueBase identified 3,662 sustainable infrastructure investment firms worldwide 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?

Acciona, headquartered in Madrid, tops this list with the largest team on record.

Which country has the most sustainable infrastructure investment firms?

The United States leads with 600 companies, followed by the United Kingdom (333) and Germany (169). Every sustainable infrastructure investment firms list by country and city is linked on this page.

Which city has the most sustainable infrastructure investment firms?

London leads with 260 headquartered companies, followed by New York (99) and Singapore (69).

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 29,437 verified decision-maker contacts tracked across these 3,662 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 29, 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.