Stackscale

Stackscale is a Madrid-based Spanish private-cloud and dedicated-infrastructure provider founded in 2013 and part of **Grupo Aire** since 2022 — the Spanish connectivity, VoIP, mobile-enabler, UCaaS, and cloud group also known as Aire Networks. Headquartered at Pl. Pablo Ruiz Picasso 1 in Madrid with offices in Amsterdam (Therese Schwartzestraat 69), Stackscale operates three data centres in Madrid, two in Amsterdam, plus additional facilities in Alicante, Valencia, and Portugal. The product targets IT integrators, IaaS / PaaS / SaaS providers, and medium-to-large enterprises with custom private-cloud builds, dedicated servers, and a multi-100G core network with 4+ Tbps of aggregated capacity. Compliance posture is one of the strongest in the Iberian / Benelux cloud market. Stackscale holds ISO/IEC 27001 plus ISO 27017 and ISO 27018 specifically scoped to cloud security and personal data protection, and is certified under the Spanish government's **ENS (Esquema Nacional de Seguridad)** at the **High** level — the most stringent ENS tier, required for processing sensitive public-sector and regulated data. The parent group Aire Networks additionally carries ISO 9001 (quality management), ISO 14001 (environmental management), ISO 22301 (business continuity), and the same ISO 27017 / 27018 / ENS High certifications. All infrastructure is located within the European Union — Spain, Netherlands, Portugal — which is particularly attractive for organisations that care about GDPR, data residency, and European regulatory compliance. Pricing is custom (the public /cloud/pricing/ URL returned 404 at audit) and oriented to private-cloud configurations rather than self-serve VPS instances; engagement is via sales for sizing and SLA negotiation. 99.99% SLA availability is advertised. Best fit: Spanish and broader Iberian SMBs and mid-market, Dutch and Benelux customers needing Amsterdam-region capacity, Spanish public-sector procurement requiring ENS High, and IT integrators or hosting resellers building infrastructure on top of a Spanish-owned EU-only stack. Together with Hetzner, OVHcloud, Scaleway, IONOS, UpCloud, STACKIT, Cleura, Exoscale, and Open Telekom Cloud / T Cloud Public, Stackscale rounds out the procurement-grade EU hyperscaler-alternative shortlist.