Spain

43 of 44 facility records have a location. Circles show power, dark for operating and pale for other recorded figures.

Power on record

Operating plant counts operational records only.

6 MWOperating capacity1 operating record, none estimated

4,480Operating AI acceleratorsSummed across disclosed counts.

100%Of the power on record is operating plant38.6% worldwide, licence-withheld records excluded

Facilities

Operating records first, by power, then other records with a power figure; records with none follow, by name. 4 of 44 records have capacity data or a site description, 9.1% here against 17.2% globally and 12.3% in the median country. A figure marked Held is not in operating totals.

Facility records in this country

Mare Nostrum 5	Barcelona Supercomputing Center, AI hardware owner	6	4,480
Adam
Amazon Data Services Spain S.L.U.	Amazon.com, Inc., Site operator
AWS Europe (Spain)	Amazon.com, Inc., Cloud region provider
AZURE Spain Central	Microsoft Corporation, Cloud region provider
Centre de Processament de Dades IBM
Centro de Datos Alcalá (Alcalá Data Center)	Telefónica, Site operator
centro de datos trasbase Negratín
Centro de Procesamiento de Datos del Gobierno de Cantabria	Gobienro de Cantabria, Site operator
Centro de Procesamiento de Datos Sur	Banco Santander, Site operator
Cloud Center Andalucía
Cogent Madrid	Cogent Communications, PeeringDB listing holder
CyrusOne Madrid 1	CyrusOne, PeeringDB listing holder
Data Center Bilbao Arasur	Merlin Properties, Site operator
Data Center KIO Murcia	KIO Networks España, Site operator
Data Center KIO Valencia	KIO Networks España, Site operator
DATA4 Madrid-Alcobendas - MAD1	DATA4 s.a r.l, PeeringDB listing holder
Digital Realty BCN1 - Barcelona	Digital Realty, Site owner
Digital Realty Madrid MAD1-2	Digital Realty, PeeringDB listing holder
Digital Realty Madrid MAD3	Digital Realty, Site owner
Equinix BA1 - Barcelona	Equinix, Inc., PeeringDB listing holder
Equinix BA2 - Barcelona	Equinix, Inc., PeeringDB listing holder
Equinix MD1 - Madrid	Equinix, Inc., PeeringDB listing holder
Equinix MD2 - Madrid	Equinix, Inc., PeeringDB listing holder
Equinix MD5 (Madrid)	Equinix, Inc., Site operator (announced)
Equinix MD6	Equinix, Inc., PeeringDB listing holder
Espanix Datacenter	Asociación ESpanix, PeeringDB listing holder
GCP Europe Southwest 1	Google, Cloud region provider
Global Switch Madrid	Global Switch Holdings Ltd., PeeringDB listing holder
IaaS Datacenter Madrid
inforland.com	InforLand.com, Site operator
IPCore Datacenter Madrid	IPCore Datacenter SL, PeeringDB listing holder
Iron Mountain Data Center - Madrid (MAD-1)	Iron Mountain Data Centers, Site owner
Iron Mountain MAD-1 (Madrid)	Iron Mountain, Site operator
MareNostrum 5 (EuroHPC)	Barcelona Supercomputing Center, Hosting centre		4,480Held: counted on another record of this site
Mozoilo AJVP	Mozoilo, Site operator
NIXVAL Datacenter	NIXVAL (Falbox, S.L.), PeeringDB listing holder
nLighten Madrid MAD1	nLighten HQ BV, Site owner
NTT Madrid 1 Data Center (MAD1)	NTT DATA's Global Data Centers division, PeeringDB listing holder
OCI Spain Central (Madrid 3)	Oracle Corporation, Cloud region provider
OCI Spain Central (Madrid)	Oracle Corporation, Cloud region provider
Templus DC Barcelona BCN01	TEMPLUS DATACENTERS, PeeringDB listing holder
Templus DC Málaga MAL01	TEMPLUS DATACENTERS, PeeringDB listing holder
The Weaver

Ownership

How far the companies linked to facilities here can be traced, weighted by operating power.

0% of operating power is traced to a company with an SEC identifier or a linked parent.

SEC identifier or a linked parent19 facilities

Parent in licensed ownership data1 facility

Parent in other sources0.0%

Company identified, parent unrecorded100.0%6 MW, 1 of 18 facilities

No company linked6 facilities

Facilities by ownership tier

Open a facility for its ownership relationships and sources.

Tier

Facility

Company

Capacity

Chain

Detail

Tier 4Mare Nostrum 5Barcelona Supercomputing CenterCompany identified; parent unrecorded6 MWview →
Tier 1AWS Europe (Spain)Amazon.com, Inc.Company has an SEC identifier—view →
Tier 1AZURE Spain CentralMicrosoft CorporationCompany has an SEC identifier—view →
Tier 1GCP Europe Southwest 1GoogleCompany has an SEC identifier—view →
Tier 1OCI Spain Central (Madrid)Oracle CorporationCompany has an SEC identifier—view →
Tier 1OCI Spain Central (Madrid 3)Oracle CorporationCompany has an SEC identifier—view →
Tier 4MareNostrum 5 (EuroHPC)Barcelona Supercomputing CenterCompany identified; parent unrecorded—view →
Tier 1Iron Mountain MAD-1 (Madrid)Iron MountainCompany has an SEC identifier—view →
Tier 4Data Center Bilbao ArasurMerlin PropertiesCompany identified; parent unrecorded—view →
Tier 1Centro de Procesamiento de Datos SurBanco SantanderCompany has an SEC identifier—view →
Tier 4Centro de Procesamiento de Datos del Gobierno de CantabriaGobienro De CantabriaCompany identified; parent unrecorded—view →
Tier 4Mozoilo AJVPMozoiloCompany identified; parent unrecorded—view →
Tier 4Centro de Datos Alcalá (Alcalá Data Center)Telef NicaCompany identified; parent unrecorded—view →
Data GapThe Weaver—No operator, site owner or hardware owner linked—view →
Tier 4inforland.comInforland ComCompany identified; parent unrecorded—view →
Data Gapcentro de datos trasbase Negratín—No operator, site owner or hardware owner linked—view →
Data GapAdam—No operator, site owner or hardware owner linked—view →
Tier 1Amazon Data Services Spain S.L.U.Amazon.com, Inc.Company has an SEC identifier—view →
Tier 4Data Center KIO MurciaKio Networks Espa ACompany identified; parent unrecorded—view →
Tier 4Data Center KIO ValenciaKio Networks Espa ACompany identified; parent unrecorded—view →
Data GapCentre de Processament de Dades IBM—No operator, site owner or hardware owner linked—view →
Data GapCloud Center Andalucía—No operator, site owner or hardware owner linked—view →
Tier 4DATA4 Madrid-Alcobendas - MAD1DATA4 s.a r.lCompany identified; parent unrecorded—view →
Tier 4NTT Madrid 1 Data Center (MAD1)NTT DATA's Global Data Centers divisionCompany identified; parent unrecorded—view →
Tier 4Espanix DatacenterAsociación ESpanixCompany identified; parent unrecorded—view →
Tier 1Equinix BA1 - BarcelonaEquinix, Inc.Company has an SEC identifier—view →
Tier 1Equinix MD2 - MadridEquinix, Inc.Company has an SEC identifier—view →
Tier 1Digital Realty Madrid MAD1-2Digital RealtyCompany has an SEC identifier—view →
Tier 1CyrusOne Madrid 1CyrusoneParent linked through filing, registry or supply-chain data—view →
Tier 4Iron Mountain Data Center - Madrid (MAD-1)Iron Mountain Data CentersCompany identified; parent unrecorded—view →
Data GapIaaS Datacenter Madrid—No operator, site owner or hardware owner linked—view →
Tier 4IPCore Datacenter MadridIPCore Datacenter SLCompany identified; parent unrecorded—view →
Tier 1Equinix BA2 - BarcelonaEquinix, Inc.Company has an SEC identifier—view →
Tier 1Equinix MD6Equinix, Inc.Company has an SEC identifier—view →
Tier 1Digital Realty BCN1 - BarcelonaDigital RealtyCompany has an SEC identifier—view →
Tier 1Equinix MD1 - MadridEquinix, Inc.Company has an SEC identifier—view →
Tier 4Templus DC Málaga MAL01TEMPLUS DATACENTERSCompany identified; parent unrecorded—view →
Tier 4NIXVAL DatacenterNIXVAL (Falbox, S.L.)Company identified; parent unrecorded—view →
Tier 4Templus DC Barcelona BCN01TEMPLUS DATACENTERSCompany identified; parent unrecorded—view →
Tier 2nLighten Madrid MAD1nLighten HQ BVParent linked through licensed ownership data—view →
Tier 4Global Switch MadridGlobal Switch Holdings Ltd.Company identified; parent unrecorded—view →
Tier 1Digital Realty Madrid MAD3Digital RealtyCompany has an SEC identifier—view →
Tier 1Cogent MadridCogent CommunicationsCompany has an SEC identifier—view →
Tier 1Equinix MD5 (Madrid)Equinix, Inc.Company has an SEC identifier—view →

Ownership tiers over time

Operating-capacity-weighted shares at each recorded snapshot. Dates are when the distribution was captured; the ownership evidence can be older.

42 snapshots weighted by operating capacity, from 2026-09-23 to 2026-11-03. 144 earlier snapshots weighted every recorded power figure and are listed under Snapshot values.

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
Tier 2 — parent linked through licensed ownership data
Tier 3 — parent linked through other sources
Tier 4 — company identified; parent unrecorded
Data Gap — no company linked

Snapshot values

Displayed MW are rounded to two decimal places. Operating capacity counts operational records only; a snapshot taken before operating weighting began lists only the figure it recorded, every status summed. Download values (JSON) for the full inputs used to calculate the shares. Consecutive snapshots showing the same figures are listed once, under their first and last dates; the download keeps every date.

2026-04-25 – 2026-05-05 · 10 snapshots

14 MW recorded, every status · 41 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 17 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 14 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 5 facilities · 0.0%

2026-05-06 – 2026-05-16 · 11 snapshots

14 MW recorded, every status · 41 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 17 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 14 MW · 17 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-05-17

14 MW recorded, every status · 42 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 17 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 14 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-05-18 – 2026-05-19 · 2 snapshots

14 MW recorded, every status · 44 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 19 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 14 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-05-20 – 2026-06-02 · 14 snapshots

93 MW recorded, every status · 46 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 79 MW · 21 facilities · 84.9%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 14 MW · 18 facilities · 15.1%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-06-03 – 2026-08-15 · 68 snapshots

6 MW recorded, every status · 43 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 19 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 6 MW · 17 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-08-16 – 2026-09-22 · 38 snapshots

6 MW recorded, every status · 43 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 18 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 6 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-09-23 – 2026-10-18 · 26 snapshots

6 MW operating · 43 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 18 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 6 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

2026-10-19 – 2026-11-03 · 16 snapshots

6 MW operating · 44 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data: 0 MW · 19 facilities · 0.0%
Tier 2 — parent linked through licensed ownership data: 0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources: 0 MW · 0 facilities · 0.0%
Tier 4 — company identified; parent unrecorded: 6 MW · 18 facilities · 100.0%
Data Gap — no company linked: 0 MW · 6 facilities · 0.0%

Sovereign programme

Operational (MareNostrum 5, BSC AI Factory) / procurement active (EUR 129M expansion). Operating compute / delivered hardware.

BSC AI Factory + MareNostrum 5 + AI Strategy 2024

~$1.6BGovernment fundingLa Moncloa, 14 May 2024

BSC provides research and industry access to MareNostrum 5; its accelerated partition has 4,480 NVIDIA H100 GPUs. The BSC AI Factory has offered computing access and technical support since April 2025. ALIA uses MareNostrum 5 to train public language models for Spanish and its co-official languages. A €129M upgrade contract signed in January 2026 covers additional AI capacity.

Partners: BSC-CNS, EuroHPC JU, Spanish Government, Catalan Government, FSAS Technologies, Telefonica, Fujitsu.

Programme record and sources

Export controls

3 Entity List designations against organisations located here.

Organisations

3 organisations listed here, alphabetically. None has a recorded market value.

All 3 organisations

Organisations headquartered here

Galicia Supercomputing Center
Seidor
Telefonica

Sources

Sources are matched by ISO country code; operating capacity and ownership shares count operational records only, from the same facility rollup.

4 sources

Source	Date
Epoch AI frontier data centers and GPU clusters
Export-control rules (US EAR, Dutch and Japanese regimes)	2026-07-17
BIS Entity List via the Consolidated Screening List and the Federal Register
Sovereign AI programme register

Epoch AI frontier data centers and GPU clusters: https://epoch.ai/data/data-centers
Export-control rules (US EAR, Dutch and Japanese regimes): https://scrutica.com/export-controls/countries
BIS Entity List via the Consolidated Screening List and the Federal Register: https://www.federalregister.gov/
Sovereign AI programme register: https://scrutica.com/sovereign-ai

Data

Open data downloads

How the figures were made

Geography. Outlines use Natural Earth de facto boundaries. Distant parts may be omitted; located records outside the drawing are counted in its caption. Power circles use the same scale across countries.

Counts. Counts retrieved 3 Nov 2026. Operating capacity and ownership shares include estimated capacity; a campus figure recorded as its full build-out, earlier phases and second records are shown apart rather than counted. Sovereign programme ratios use government-only announced amounts where available; each ratio lists its numerator and denominator.

Corporate traceability. No company linked means no operator, site owner or hardware owner has been linked to the facility. The tiers do not verify property ownership or facility operation. Announced and under-construction figures are not counted here. Tiers classify the available sources for a company linked to each facility. A linked company’s SEC identifier can qualify it for the first tier without establishing a parent. Ownership relationships and their sources are listed on the facility and company pages.

Organisations headquartered here. Across all industries; multiple identifiers may refer to the same company. The record lists 3 distinct organisations with qualifying market-capitalisation or linked-record evidence, after reviewing all public organisation rows for Spain; the source holds 554 organisation rows, including duplicate identities and rows without qualifying evidence, and the company register applies its own evidence scope. A type is shown only where the classification has been reviewed.

Corrections to this page, 4

Operating totals counted ten machines more than once, 1 Nov 2026
Sovereign AI: Spain’s government funding was shown as absent beside its own government-funded component, 25 Sep 2026
Facility class: country pages printed a class the record withholds, 25 Sep 2026
Capacity totals: planned capacity counted as present capacity, 23 Sep 2026

Identifiers

ISO country code: ES