Company lists · Data refreshed November 2026

Top 13 Secure data center operators based in Spain

RevenueBase identified 31 company matches for secure data center operators associated with Spain as of November 2026 and tracks 605 professional contacts across them, including 146 with verified work emails. Madrid is the largest hub.

This list covers company matches for secure data center operators associated with 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
31Companies
605Contacts tracked
146Verified emails
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The 13 largest secure data center operators based in Spain

Ranked by team size
Top 13 of 31 company matches for secure data center operators based in 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 matchAlcobendas, SpainHQ recorded Nov 6, 2026201-500288 contacts →

Exact match

“acens, perteneciente al Grupo acens Technologies, es una empresa proveedora de servicios de “Hosting”, “Housing” y Soluciones de Telecomunicaciones para el mercado empresarial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5064 contacts →

Exact match

“Nabiax is the leading company of the Colocation industry in Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAlcalá De Henares, SpainHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“We are a neutral data center provider with 30 years of experience, 18 of them managing critical infrastructure in our own Data Centers in Madrid and Barcelona.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchValladolid, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“In its Madrid Data Center, it provides server and rack hosting services, monitoring, operation and administration of information systems, and hosting and operating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMurcia, SpainHQ recorded Nov 6, 2026n/a10 contacts →

Exact match

“Data Center certificado Tier IV en España y proveedor de IaaS (Infraestructura como servicio) para negocios de misión crítica.”

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

Exact match

“Diseñamos, construimos y mantenemos Data Centers (CPD) desde hace más de 40 años, desarrollando infraestructuras fiables y eficientes adaptadas a las necesidades de cada…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Interhost es una empresa especializada en alojamiento de Sistemas de Información y gestión de CPD, de capital enteramente español, integrada en el Grupo SATEC, con dieciocho años…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchTres Cantos, SpainHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Catrian es una empresa especializada en la provisión de servicios gestionados de infraestructura y seguridad informáticas para empresas e Instituciones Públicas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLas Rozas De Madrid, SpainHQ recorded Nov 6, 202611-507 contacts →

Exact match

“arsenet es una compañía fundada en 1996, de capital privado 100% Español y pionera en la prestación de servicios en La RED.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Somos una plataforma dedicada al desarrollo y la operación de centros de datos sostenibles, cuyo objetivo es ofrecer soluciones para satisfacer la creciente demanda del sector…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSpainHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Sierra DC owns and operates large (30-100 MW) green powered data centers for the future of AI, machine learning, IoT, ERP and cloud services in Europe, Africa and Middle East.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchEl Puerto De Santa María, SpainHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Cyberneticos provides hosting, VPS, dedicated servers and domain solutions for companies, agencies and digital projects that need reliable, secure and scalable infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Somos una empresa tecnológica con casi 20 años de experiencia cuya misión es la de ofrecer servicios y soluciones cloud a todo tipo de empresas asi cómo un soporte técnico…”

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

Showing 13 of 31 secure data center operators based in Spain

See the full list, filter by size, metro and specialty, and access 146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Secure data center operators based in Spain at a glance

As of Nov 6, 2026
24.1%Verified-email coverage
19.5Average contacts per company
11-50Median size (employees)
29.0%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
14
51-200
2
201-500
1
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 31 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 Spain whose business descriptions match “secure data center operators” 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 146 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 “secure data center operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many secure data center operators are there based in Spain?

RevenueBase identified 31 company matches for secure data center operators associated with 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?

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

Which city has the most secure data center operators?

Madrid leads with 9 company records, followed by Barcelona (7) and Alcala De Henares (1).

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 146 professional contacts with verified work emails tracked across these 31 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.