Company lists · Data refreshed September 2026
Top 21 Middle market private equity firms based in Luxembourg
RevenueBase identified 48 middle market private equity firms headquartered in Luxembourg as of September 2026 and tracks 1,277 professional contacts across them, including 581 with verified work emails and 71 with mobile numbers. Luxembourg is the largest hub.
This list covers middle market private equity firms 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.
The 21 largest middle market private equity firms based in Luxembourg
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Triton PartnersPartial evidence | 494 | |||
“Founded in 1997 and owned by its partners, Triton is a leading European mid-market sector-specialist investor.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 67 | ||||
“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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 33 | ||||
“Squircle Capital is an established and innovative pan-European private equity firm with a demonstrable track record of transforming assets through exceptional vision and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 29 | ||||
“Planet First Partners is a growth equity platform that invests in and partners with disruptive entrepreneurs to scale tech-enabled businesses that combine a purpose-driven…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 25 | ||||
“CedarBridge invests in solid and promising European and MENA companies and management teams.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 | ||||
“L-GAM is a long-term investment firm established in partnership with the Princely Family of Liechtenstein.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 | ||||
“With over 2bn in assets under management, Alpha is a premier private equity investor in the European mid-market buyouts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 18 | ||||
“Founded in 2003, Cipio Partners is a leading investment management and advisory firm for European growth capital & minority buyouts for technology companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“Aquasourça est un groupe dédié à l’activité de capital investissement dont le siège social est à Luxembourg.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 | ||||
“Active Ownership Group (AOC) is an independent, partner-managed investment company acquiring significant minority stakes in publicly listed, undervalued small- and mid-size…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Value4capitalStrong evidence | 11 | |||
“Value4Capital is a private equity firm focused on investments in mid-market Central and Eastern European companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Lafayette Mittelstand CapitalStrong evidence | 11 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 | ||||
“Borletti Group is a private investment group, founded in 2005, with a strong track-record of Private Equity investments in Consumer, Retail and Luxury.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“Genii Capital is a Luxembourg headquartered venture capital and private equity firm founded in 2008.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Sustainable Growth ManagementStrong evidence | 5 | |||
“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, 2026Thanks. The Data Team will review it. | |||||
| 16 | Park PartnersIndirect evidence | 4 | |||
“Park Partners is the investment manager of Perpetua Capital.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
“Tacticum Investments is a private investment company based in Luxembourg, with expertise in both direct and portfolio investments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“Bock Capital Investors is a Luxembourg-based growth private equity firm investing in growing private companies throughout Europe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 | ||||
“August is a family-controlled, Luxembourg-based investment firm focused on private markets and alternative asset classes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“Independent private investment company that handles investment management and wealth management.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 48 middle market private equity firms based in Luxembourg
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Middle market private equity firms based in Luxembourg at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 middle market private equity 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 Luxembourg whose own description of what they do matches “middle market private equity 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 middle market private equity firms, 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, 581 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.
Middle market private equity firms by metro
- Middle market private equity firms in Luxembourg40
Frequently asked
How many middle market private equity firms are there based in Luxembourg?
RevenueBase identified 48 middle market private equity firms 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?
Triton Partners, headquartered in Luxembourg, tops this list with the largest team on record.
Which city has the most middle market private equity firms?
Luxembourg leads with 40 headquartered companies, followed by Howald (2) and Luxembourg City (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 581 verified decision-maker contacts tracked across these 48 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.
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