Company lists · Data refreshed September 2026
Top 25 Middle market private equity firms based in Spain
RevenueBase identified 113 middle market private equity firms headquartered in Spain as of September 2026 and tracks 2,103 professional contacts across them, including 601 with verified work emails and 70 with mobile numbers. Madrid is the largest hub.
This list covers middle market private equity firms headquartered in Spain, 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 25 largest middle market private equity firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 314 | ||||
“AltamarCAM is a leading investment manager in private markets whose main objective is to provide institutional investors, including insurance companies, pension funds and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | Onetoone Corporate FinanceStrong evidence | 188 | |||
“ONEtoONE Group is an M&A Advisory Network specializing in Global M&A Advisory for the Middle-Market and Alternative Assets Management.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 100 | ||||
“Miura Partners is a purpose-driven private equity firm founded in 2008, with offices in Barcelona and Madrid.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Tresmares CapitalIndirect evidence | 62 | |||
“Tresmares Capital is a growth-focused alternative asset manager currently operating in Spain, the UK and Portugal, with c.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 51 | ||||
“Juniper Group is a long-term investor dedicated to acquiring, strengthening, and growing vertical market software companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 44 | ||||
“Sherpa Capital, with over 14 years of experience, is the leading private equity firm in Iberia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“Redefinimos la inversión a largo plazo.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Nazca CapitalStrong evidence | 33 | |||
“Nazca es una sociedad gestora de fondos de capital privado especializada en el middle market español.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 | ||||
“Talde Private Equity es una gestora de Capital Privado que invierte fundamentalmente en Pequeñas y Medianas Empresas españolas a las que apoyamos en el diseño y ejecución de…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 | ||||
“Oquendo provides flexible capital solutions targeted at performing Iberian and French mid-market companies in the context of acquisitions, growth or shareholder reorganizations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Telam PartnersIndirect evidence | 23 | |||
“Telam Partners originates, structures and executes investment and financing platforms for institutional capital.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 | ||||
“Corpfin Capital is an independent private equity fund management company with +30 years of experience in the mid-market segment in Spain.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Mirai InvestmentsIndirect evidence | 18 | |||
“Mirai Investments es un proyecto de inversión especializado en el desarrollo industrial sostenible.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | PHI IndustrialIndirect evidence | 17 | |||
“PHI Industrial acquires medium-sized companies in transitional situations and supports the management of the company by means of its own team, with the objective of generating…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 | ||||
“JB46 Partners is a microcap private equity investment firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 | ||||
“Besant is an investment firm with geographical presence in Europe and the Americas investing in real estate, hospitality and technology capitalizing value from areas undergoing a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 | ||||
“ABE Capital Partners is a private equity fund manager targeting long-term equity investments in Small and Mid-Enterprises (“SMEs”) with growth potential.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 | ||||
“Stellum Capital es una gestora independiente de Capital Privado con diversos fondos bajo gestión, que invierten en empresas a las que dan soporte en el diseño y ejecución de sus…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 | ||||
“Magnum Capital is a leading private equity firm focused on the Iberian middle market.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 | ||||
“Gestionamos inversiones en una cartera de negocios diversificados en diferentes sectores y cinco países.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 | ||||
“Gestora independiente de vehículos de inversión, especializada en private equity y financiación alternativa.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 | ||||
“We are a firm that invests in leading Spanish mid-sized companies, and actively helps them execute their investment plans.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Pardo & Galarza GroupIndirect evidence | 5 | |||
“Holding empresarial e Inversor profesional.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 | ||||
“Asset management firm dedicated to create value through a combination of direct investments and the creation of specialised funds.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 | ||||
“Kereon Partners es un inversor Venture Capital en participaciones de proyectos empresariales, restructuraciones y en apoyo a emprendedores que aglutina las capacidades de 5…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 113 middle market private equity firms based in Spain
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Middle market private equity firms based in Spain 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 Spain 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 Spain 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, 601 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 Madrid66
Frequently asked
How many middle market private equity firms are there based in Spain?
RevenueBase identified 113 middle market private equity firms headquartered in Spain 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?
Altamarcam Partners, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most middle market private equity firms?
Madrid leads with 66 headquartered companies, followed by Barcelona (19) and Bilbao (5).
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 601 verified decision-maker contacts tracked across these 113 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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