Nabiax
Spanish data center operator with sites in Madrid and Barcelona, founded in 2019 and anchored by the Telefonica group
Quick Overview
| Company | Digital Data Centre Bidco, S.L. and Digital DHF Iberia, S.L.U. |
|---|---|
| Category | Colocation and Data Center Providers |
| Headquarters | Madrid, Spain |
| Founded | 2019 |
| EU Presence | Yes - Spain (EU) |
| Data Location | Spain |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | Colocation, carrier-neutral ecosystem, modular space and power, biometric access control, free cooling, renewable supply |
| Pricing | Quote on request |
| Best For | Spanish enterprises, carriers and cloud providers that need Madrid or Barcelona capacity |
| Replaces | Equinix |
Detailed Review
Nabiax says it was founded in 2019 and is backed by Aermont Capital. It operates 35 MW of installed IT capacity across Madrid and Barcelona, with room to grow beyond 120 MW through the Alcala campus extension known as ADC3.
The legal notice names two Madrid-registered companies: Digital Data Centre Bidco, S.L. and Digital DHF Iberia, S.L.U., with a head office on Calle Julian Camarillo. Data centers are listed at Alcala de Henares, Julian Camarillo and Terrassa.
Design claims
The services page describes most sites as Tier III, with multiple routes for electricity and cooling and duplicated feeds to IT equipment, so maintenance can happen without stopping service. Nabiax adds that spaces and power can be adapted to each client and expanded as demand grows.
Security uses CCTV, biometric controls and several access levels per room.
Certification and energy
In July 2025 the company announced that Uptime Institute renewed a Tier IV Gold Certification for Operational Sustainability at the Alcala de Henares data center. It states a 100 percent renewable electricity supply and free cooling.
An ecosystem approach
Colocation is carrier-neutral, so carriers, fibre and cloud providers can connect to each other inside the facilities. Nabiax names the Telefonica group as its main reference customer, which signals a stable anchor tenant but also concentration.
Limitations to Consider
All capacity is in Spain and the installed base of 35 MW is small next to the pan-European campus builders. The company says Telefonica is its main reference customer, and the group is backed by an investment firm, so check how that affects capacity for new tenants. The latest news on the English home page dates from 2025, and pricing is by quote only.
Who Should Use Nabiax
Carriers, cloud providers and Spanish enterprises that want Tier III colocation in Madrid or Barcelona from a Spanish operator.
Pros and Cons
Pros
- Tier IV Gold sustainability certificate at Alcala
- Carrier-neutral model
- Room to grow beyond 120 MW
- Biometric security layers
- Renewable supply stated
Cons
- Spain only
- Small installed base
- Anchor customer concentration
- No published prices
Alternatives to Nabiax
Other European colocation and data center providers worth comparing before you decide:
NorthC
Netherlands · Regional colocation sites across NL, DE and CH
Green Mountain
Norway · Hydropower-fed Nordic racks, cages and data rooms
Datacenter United
Belgium · Belgian network of carrier-neutral sites with Tier IV design
Pulsant
United Kingdom · Regional UK colocation with an owned edge network
See all European colocation and data center providers or compare them directly against Equinix on our alternatives page.
Frequently Asked Questions
In Madrid (Alcala de Henares and Julian Camarillo) and Barcelona (Terrassa).
Yes, it describes its colocation as based on a carrier-neutral ecosystem where carriers, fibre and cloud providers can connect.
Its site names the Telefonica group as its main reference.