Company lists · Data refreshed November 2026

Top 24 Infrastructure investors based in Madrid, Spain

RevenueBase identified 66 company matches for infrastructure investors associated with Madrid, Spain as of November 2026 and tracks 47,380 professional contacts across them, including 5,404 with verified work emails. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for infrastructure investors associated with Madrid, Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
66Companies
47,380Contacts tracked
5,404Verified emails
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The 24 largest infrastructure investors based in Madrid, Spain

Ranked by team size
Top 24 of 66 company matches for infrastructure investors based in Madrid, Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+29,815 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+4,705 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Nov 6, 20265,001-10,0001,859 contacts →

Exact match

“Isolux is a global benchmark in energy, water and environmental, road and railways infrastructure with presence in more than 35 countries on four continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000525 contacts →

Exact match

“En Lantania hacemos realidad grandes infraestructuras de transporte, agua y energía con el entusiasmo de una empresa joven y la solidez que nos aporta la experiencia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000363 contacts →

Exact match

“Efficient and innovative solutions to meet global mobility needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+262 contacts →

Exact match

“The ACS Group is the most global, integrated, and diverse organisation that develops, invests in, designs, constructs, and operates projects in advanced technology, energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+252 contacts →

Exact match

“At Globalvia, we are one of the world leaders in the management of transport infrastructure concessions and mobility services, placing sustainability and innovation at the core of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500209 contacts →

Exact match

“Azora is a leading independent global real estate and infrastructure investment manager, with €14.6 billion AUM and over 600 professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500134 contacts →

Exact match

“Founded in 2007, Plenium Partners is an investment company focused on power and sustainable infrastructure in Europe More than 7.5Bn invested to date,+300 employees, 5 countries…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,00066 contacts →

Exact match

“Founded in 2009, Celeo Concesiones e Inversiones (Celeo) purpose is to identify and manage worldwide investments in power transmission and renewable energy projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Serena Industrial Partners is an European independent investment manager, focused on sustainable infrastructure development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,00020 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“Alter5 is an investment platform that caters to institutional investors in the renewable energy sector, focusing on utility-scale solar and wind projects, as well as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Crede es un funder de equipos e inversiones productivas que complementa su oferta de valor con soluciones estructuradas de financiación.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Kobus Partners is a leading independent investment manager and advisory services firm specialized in infrastructure investments and corporate finance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMadrid, SpainHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Teras Capital is an investment firm focusing on the origination, development and management of differentiated transactions in telecommunications and sports infrastructures.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Eland is a well-established Investment Fund Manager, founded in 2006 and registered with the Spanish National Securities Commission (CNMV).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Teset Capital is a specialised infrastructure private equity firm focused on the lower mid-market across the Eurozone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Nov 6, 202611-507 contacts →

Exact match

“At HydroH2, we believe that the greatest challenges of our time create the most significant opportunities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Frontier Renewables is a global investment management firm focused on investing in renewable energy infrastructure projects to help accelerate the world’s clean energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Ibero Capital Management proporciona capital para el desarrollo de proyectos inmobiliarios.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“ARGO CAPITAL PARTNERS is an Impact Investing Private Equity firm specialising in the Energy Transition towards a low-carbon economy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Exus Management Partners is an independent investment and asset management firm focused on the renewable energy sector (wind, photovoltaic and small hydro).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMadrid, SpainHQ recorded Nov 6, 202611-504 contacts →

Exact match

“En GAT Inversiones abordamos y desarrollamos proyectos, realizando inversiones en diferentes sectores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 66 infrastructure investors based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 5,404 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure investors based in Madrid, Spain at a glance

As of Nov 6, 2026
11.4%Verified-email coverage
717.9Average contacts per company
11-50Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
19
51-200
9
201-500
3
501-1,000
2
1,001-5,000
4
5,001-10,000
1
10001+
5

Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 66 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Madrid, Spain whose business descriptions match “infrastructure investors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,404 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure investors are there based in Madrid, Spain?

RevenueBase identified 66 company matches for infrastructure investors associated with Madrid, Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Acciona tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Spain has the most infrastructure investors?

Madrid leads Spain with 66 company records, followed by Barcelona (8) and Alicante (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,404 professional contacts with verified work emails tracked across these 66 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.