Company lists · Data refreshed September 2026

Top 18 Private equity climate investors based in Luxembourg

RevenueBase identified 35 private equity climate investors headquartered in Luxembourg as of September 2026 and tracks 367 professional contacts across them, including 147 with verified work emails and 26 with mobile numbers. Luxembourg is the largest hub.

This list covers private equity climate investors headquartered in Luxembourg, 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 5, 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 5, 2026 86% judged on-target in blind review
35Companies
367Contacts tracked
147Verified emails
26Mobile numbers
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The 18 largest private equity climate investors based in Luxembourg

Ranked by team size
Top 18 of 35 private equity climate investors based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private equity climate investors: 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
Fremman CapitalStrong evidence
LuxembourgHQ checked Sep 5, 202611-5067

“Fremman is an independent Pan European Private Equity firm, with offices in London, Madrid, Munich, Paris, Milan and Luxembourg.”

Source: company website · checked Sep 5, 2026
2LuxembourgHQ checked Sep 5, 202611-5042

“ING Solutions Investment Management (ISIM) is the ING Group’s management company.”

Source: company website · checked Sep 5, 2026
3
MargueritePartial evidence
LuxembourgHQ checked Sep 5, 202611-5036

“We're a pan-European investor in long-life greenfield and brownfield expansion infrastructure.”

Source: company website · checked Sep 5, 2026
4
SatganaIndirect evidence
Luxembourg City, LuxembourgHQ checked Sep 5, 2026n/a34

“Satgana is an Earth Tech Venture Capital firm backing founders building technologies that rebuild the planetary systems underpinning human prosperity across Europe and Africa.”

Source: company website · checked Sep 5, 2026
5
Xenon Private EquityStrong evidence
Strassen, LuxembourgHQ checked Sep 5, 202611-5026

Private Equity Fund”

Source: company website · checked Sep 5, 2026
6
ICFAPartial evidence
LuxembourgHQ checked Sep 5, 20261-1018

“The International Climate Finance Accelerator (ICFA), powered by Accelerating Impact, supports emerging managers focused on climate impact to develop the climate finance leaders…”

Source: company website · checked Sep 5, 2026
7LuxembourgHQ checked Sep 5, 20261-1015

“ORAXYS is a European Private Equity firm specialized in financing Growth Capital and Buyout activities for Small and Mid-sized Enterprises that market environment-friendly…”

Source: company website · checked Sep 5, 2026
8LuxembourgHQ checked Sep 5, 202611-5011

“About Lafayette Mittelstand Capital: Lafayette Mittelstand Capital is a leading private equity firm specializing in acquiring Mittelstand companies at inflection points…”

Source: company website · checked Sep 5, 2026
9
Annycent CapitalPartial evidence
LuxembourgHQ checked Sep 5, 20261-109

“Annycent is an alternative investment management firm focused on climate investments in emerging and frontier markets.”

Source: company website · checked Sep 5, 2026
10
Becolux S.AIndirect evidence
Grevenmacher, LuxembourgHQ checked Sep 5, 202611-506

“Becolux is a Luxembourg-based family-owned investment group focused on long-term, sustainable value creation.”

Source: company website · checked Sep 5, 2026
11
Genii CapitalStrong evidence
Howald, LuxembourgHQ checked Sep 5, 20261-106

“Genii Capital is a Luxembourg headquartered venture capital and private equity firm founded in 2008.”

Source: company website · checked Sep 5, 2026
12LuxembourgHQ checked Sep 5, 202611-505

“Sustainable Growth Management (SGM) runs the Sustainable Growth Funds, alternative private equity funds, that support growth companies and provide flexible financing.”

Source: company website · checked Sep 5, 2026
13
KourosPartial evidence
Raiffeisen, LuxembourgHQ checked Sep 5, 20261-104

“A major player in the fight against climate change, the Kouros Group is investing in the decarbonization of transport and energy production.”

Source: company website · checked Sep 5, 2026
14
Greenlight GroupIndirect evidence
Senningerberg, LuxembourgHQ checked Sep 5, 202611-504

“Greenlight Asset Management GP Sarl ("GAM"),(formerly AVG Group Sarl) is a Luxembourg-based asset manager focused on investing in Nordic and European cleantech growth companies.”

Source: company website · checked Sep 5, 2026
15
Bock Capital InvestorsStrong evidence
LuxembourgHQ checked Sep 5, 20261-102

“Bock Capital Investors is a Luxembourg-based growth private equity firm investing in growing private companies throughout Europe.”

Source: company website · checked Sep 5, 2026
16
Alpha Future FundsIndirect evidence
Luxemburg, LuxembourgHQ checked Sep 5, 20261-102

“We are a leading multistage capital investment firm based in Munich.”

Source: company website · checked Sep 5, 2026
17
Actarus RenewablesIndirect evidence
LuxembourgHQ checked Sep 5, 202611-501

“Actarus Renewables is the Energy platform of Actarus Investments Group, an independent investment firm active in Real Estate, Infrastructure and Environmental services.”

Source: company website · checked Sep 5, 2026
18
Tact InvestPartial evidence
Luxemburg, LuxembourgHQ checked Sep 5, 20261-101

“TACT+INVEST specializes in advancing First-Of-A-Kind technologies through strategic investments in hardware enabled clean, climate and deep tech startups.”

Source: company website · checked Sep 5, 2026

Showing 18 of 35 private equity climate investors based in Luxembourg

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Private equity climate investors based in Luxembourg at a glance

As of Sep 5, 2026
11-50Median size (employees)
LuxembourgLargest hub · 22 HQs
26Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
14
11-50
21

Verified emails by last verification

0–30
139
31–60
8
61–90
0
90–180
0
180+
0

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 private equity climate investors, 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 Luxembourg whose own description of what they do matches “private equity climate investors”. 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 private equity climate investors, and records with no verified work email. Companies headquartered outside Luxembourg 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, 147 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 5, 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.

Frequently asked

How many private equity climate investors are there based in Luxembourg?

RevenueBase identified 35 private equity climate investors headquartered in Luxembourg 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?

Fremman Capital, headquartered in Luxembourg, tops this list with the largest team on record.

Which city has the most private equity climate investors?

Luxembourg leads with 22 headquartered companies, followed by Luxemburg (3) and Bertrange (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 147 verified decision-maker contacts tracked across these 35 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 5, 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.