Company lists · Data refreshed September 2026

Top 23 Megafund private equity companies based in Spain

RevenueBase identified 62 megafund private equity companies headquartered in Spain as of September 2026 and tracks 1,041 professional contacts across them, including 195 with verified work emails and 22 with mobile numbers. Madrid is the largest hub.

This list covers megafund private equity companies 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.

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
62Companies
1,041Contacts tracked
195Verified emails
22Mobile numbers
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The 23 largest megafund private equity companies based in Spain

Ranked by team size
Top 23 of 62 megafund private equity companies based in Spain, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names megafund private equity companies: 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
Altamarcam PartnersPartial evidence
Madrid, SpainHQ checked Sep 5, 2026201-500314

“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, 2026
2
Beka FinanceIndirect evidence
Madrid, SpainHQ checked Sep 5, 202651-200139

“We are active in investment banking, asset management and direct investments.”

Source: company website · checked Sep 5, 2026
3
Miura PartnersStrong evidence
Barcelona, SpainHQ checked Sep 5, 202611-50100

“Miura Partners is a purpose-driven private equity firm founded in 2008, with offices in Barcelona and Madrid.”

Source: company website · checked Sep 5, 2026
4
Sherpa CapitalStrong evidence
Madrid, SpainHQ checked Sep 5, 202611-5044

“Sherpa Capital, with over 14 years of experience, is the leading private equity firm in Iberia.”

Source: company website · checked Sep 5, 2026
5
Proa CapitalStrong evidence
Madrid, SpainHQ checked Sep 5, 202611-5039

“Venture Capital & Private Equity

Source: company website · checked Sep 5, 2026
6
CrescentaIndirect evidence
Madrid, SpainHQ checked Sep 5, 202611-5033

“Redefinimos la inversión a largo plazo.”

Source: company website · checked Sep 5, 2026
7
Nazca CapitalPartial evidence
Madrid, SpainHQ checked Sep 5, 202611-5033

“Nazca es una sociedad gestora de fondos de capital privado especializada en el middle market español.”

Source: company website · checked Sep 5, 2026
8
Oquendo CapitalIndirect evidence
Madrid, SpainHQ checked Sep 5, 202611-5026

“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, 2026
9
Corpfin CapitalStrong evidence
Madrid, SpainHQ checked Sep 5, 202611-5021

“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, 2026
10
Alter CapitalIndirect evidence
Sevilla, SpainHQ checked Sep 5, 20261-1019

“Alter Capital es una sociedad gestora de fondos de capital riesgo, independiente y especializada en el “lower middle market” Español.”

Source: company website · checked Sep 5, 2026
11
Guidebridge CapitalPartial evidence
Madrid, SpainHQ checked Sep 5, 20261-1017

“GuideBridge Capital (GB) is a private investment firm managing private funds on behalf of endowments, foundations, public and private pension plans, private funds, family offices…”

Source: company website · checked Sep 5, 2026
12
Jb46 PartnersStrong evidence
Madrid, SpainHQ checked Sep 5, 202611-5016

“JB46 Partners is a microcap private equity investment firm.”

Source: company website · checked Sep 5, 2026
13
Stellum CapitalPartial evidence
Donostia-san Sebastián, SpainHQ checked Sep 5, 202611-5016

“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, 2026
14
Grupo CeibaPartial evidence
Madrid, SpainHQ checked Sep 5, 202611-5016

“Gestora de fondos de capital privado, con más de 10 años de track record.”

Source: company website · checked Sep 5, 2026
15Madrid, SpainHQ checked Sep 5, 202611-5015

“Magnum Capital is a leading private equity firm focused on the Iberian middle market.”

Source: company website · checked Sep 5, 2026
16
Gannet Partners SgeicStrong evidence
Madrid, SpainHQ checked Sep 5, 20261-108

“Gestora independiente de vehículos de inversión, especializada en private equity y financiación alternativa.”

Source: company website · checked Sep 5, 2026
17Madrid, SpainHQ checked Sep 5, 20261-102

“El trabajo de una vida.”

Source: company website · checked Sep 5, 2026
18
Inbergune Capital PartnersIndirect evidence
Donostia - San Sebastián, SpainHQ checked Sep 5, 20261-102

“INBERGUNE CAPITAL PARTNERS invierte en compañías que buscan emprender proyectos de transformación y crecimiento a medio y largo plazo, con un enfoque diferencial que permite…”

Source: company website · checked Sep 5, 2026
19
Incamais InvestmentsIndirect evidence
Barcelona, SpainHQ checked Sep 5, 20261-102

“Holding inversiones capitales proprios y gestion de co-inversiones con terceros.”

Source: company website · checked Sep 5, 2026
20
Indes CapitalPartial evidence
SpainHQ checked Sep 5, 202651-2001

“Indes Capital is a private investment firm specializing in the acquisition of companies in special situations, providing capital and adding value to the companies we back through…”

Source: company website · checked Sep 5, 2026
21
Green Bull Capital S.LIndirect evidence
Madrid, SpainHQ checked Sep 5, 20261-101

“Green Bull Capital was constituted to respond to changes in market trends evident in investment and to take advantage of new and developing market sectors and changes in global…”

Source: company website · checked Sep 5, 2026
22
Benthos CapitalStrong evidence
Barcelona, SpainHQ checked Sep 5, 20261-101

“A company that invests in real estate, private equity and venture capital.”

Source: company website · checked Sep 5, 2026
23
Norfeu Private EquityStrong evidence
Barcelona, SpainHQ checked Sep 5, 20261-101

“Norfeu is a private equity fund backed by local and interational investors focused in investing in buy-and-build strategies and growth for SMEs.”

Source: company website · checked Sep 5, 2026

Showing 23 of 62 megafund private equity companies based in Spain

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Megafund private equity companies based in Spain at a glance

As of Sep 5, 2026
1-10Median size (employees)
MadridLargest hub · 37 HQs
22Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
40
11-50
19
51-200
2
201-500
1

Verified emails by last verification

0–30
178
31–60
16
61–90
0
90–180
0
180+
1

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 megafund private equity companies, 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 “megafund private equity companies”. 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 megafund private equity companies, 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, 195 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.

Megafund private equity companies by metro

  • Megafund private equity companies in Madrid37

Frequently asked

How many megafund private equity companies are there based in Spain?

RevenueBase identified 62 megafund private equity companies 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 megafund private equity companies?

Madrid leads with 37 headquartered companies, followed by Barcelona (14) and A Coruna (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 195 verified decision-maker contacts tracked across these 62 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.