Seeweb vs STACKIT

Compare Seeweb and STACKIT on capabilities, jurisdiction, assurance, and fit for European buyers.

Both listed as alternatives to: Amazon Web Services (AWS), DigitalOcean, Microsoft Azure

Seeweb

Italy· Cloud Computing

Needs review

Shortlist Seeweb when you want Italian-operated IaaS with KVM cloud servers, NVIDIA/AMD GPU capacity, managed Kubernetes, and ACN-qualified product scope—plus European data-center choices under DHH Group ownership. Skip when you need global hyperscaler PaaS breadth or many continents of regions; consider OVHcloud, Scaleway, or Aruba Cloud instead for scale or alternate Italian sovereign stacks.

Italian operator (DHH)NVIDIA + AMD GPU cloudManaged Kubernetes (SKS)ACN QI2/QC2 (claimed)ISO 27001 (claimed)CISPE registered

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STACKIT

Germany· Cloud Computing

Needs review

Shortlist STACKIT when you want German-entity IaaS/PaaS on Schwarz Group–owned DE/AT infrastructure with managed Kubernetes, scoped BSI C5 Type 2 claims, and optional same-campus colocation. Skip when you need global multi-region hyperscaler breadth or a fully self-hosted control plane—consider OVHcloud or Scaleway for multi-country EU clouds, or AWS/Azure when worldwide services dominate the architecture.

EU-operatedGerman legal entityGroup-owned DE/AT DCsBSI C5 Type 2 (claimed)Managed Kubernetes (SKE)EU colocation + hybrid

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Highlighted rows differ between the two products.

Seeweb vs STACKIT: Snapshot
Feature	Seeweb	STACKIT
Country of origin	Italy	Germany
Category	Cloud Computing	Cloud Computing
Open source	No	No
Self-hosted	No	No
Headquarters	Italy	Germany
Legal entity	Seeweb S.r.l. (p.IVA/C.F. 02043220603); fully owned by DHH S.p.A.	Schwarz Digits Cloud GmbH & Co. KG (Am Campus 1, 74177 Bad Friedrichshall; imprint lists STACKIT Beteiligungs-GmbH as general partner vehicle in Neckarsulm)
Governing law	Not listed	Germany (imprint also notes ICT infrastructure jurisdiction Germany and Austria)
US parent / control	No known US parent	No known US parent
CLOUD Act exposure (indicative)	Low	Low
Hosting / residency	Primary: Seeweb proprietary data centers in Milan and Frosinone (Italy). Additional cloud sites: Lugano (Swisscom facility), Zurich (Global Data Centers Switzerland AG), Sofia (Evolink). DR/backup marketed within Europe. No AWS/GCP/Azure as primary cloud host found on public pages. Network transit via multi-carrier mix (including Cogent, GTT, NTT) for connectivity.	Vendor claims STACKIT Cloud runs in group-owned ISO 27001 data centers in Germany and Austria (sites publicly named include Neckarsulm DC01, Ellhofen DC08, Ostermiething DC10; additional EU sites claimed). Cloud regions include EU01 (Germany) and EU02 (Austria). No public evidence found that customer data-plane hosting is on AWS/GCP/Azure. A detailed third-party subprocessor list for all support/analytics tooling was not found on marketing pages—confirm in the AVV.
Summary	Italian cloud and data-center provider (DHH Group): KVM cloud servers, NVIDIA/AMD GPU for AI, managed Kubernetes, VPC, and storage on European sites including proprietary Milan and Frosinone facilities.	German sovereign cloud from Schwarz Digits (Schwarz Group): IaaS, managed Kubernetes, databases, and colocation on group-owned data centers in Germany and Austria.
Tags	cloud infrastructure kubernetes sovereign-cloud iaas gpu italy gdpr ai data-center	cloud infrastructure kubernetes sovereign-cloud iaas privacy paas

At a glance: Seeweb vs STACKIT
At a glance	Seeweb	STACKIT
HQ / legal entity	Seeweb S.r.l. — Frosinone & Milan, Italy	Bad Friedrichshall / Neckarsulm area, Germany — Schwarz Digits Cloud GmbH & Co. KG
Ownership	100% DHH S.p.A. (Euronext Growth Milan) since 2020	Not listed
Founded	1998	Not listed
Hosting regions	IT (Milan, Frosinone), CH (Lugano, Zurich), BG (Sofia)	Not listed
Core products	Cloud Server, GPU, SKS Kubernetes, VPC, storage, colocation	Not listed
Commercial model	Pay-as-you-go / consumption (SPU & hourly GPU); no public free tier	Not listed
Self-host product	No — managed IaaS / DC services	Not listed
Parent	Not listed	Schwarz Digits (Schwarz Group — Lidl/Kaufland)
Hosting	Not listed	Group-owned data centers in Germany & Austria (e.g. EU01/EU02); not marketed as AWS/Azure reseller
Model	Not listed	Consumption-based public cloud + quote-based colocation
Open source	Not listed	Uses open-source components; platform itself is managed, not self-hosted
External market	Not listed	Public offering from 2022 (internal roots from 2018)

Key capabilities: Seeweb vs STACKIT
Key capabilities	Seeweb	STACKIT
Italian operator (DHH)	Yes	Yes
NVIDIA + AMD GPU cloud	Yes	Not listed
Managed Kubernetes (SKS)	Yes	Not listed
ACN QI2/QC2 (claimed)	Yes	Not listed
ISO 27001 (claimed)	Yes	Not listed
CISPE registered	Yes	Not listed
German legal entity	Not listed	Yes
Group-owned DE/AT DCs	Not listed	Yes
BSI C5 Type 2 (claimed)	Not listed	Yes
Managed Kubernetes (SKE)	Not listed	Yes
EU colocation + hybrid	Not listed	Yes

Seeweb

KVM Cloud Servers with dedicated resources
Cloud Server is a KVM virtual machine with dedicated CPU, RAM, and SAN-backed storage, N+1 style redundancy messaging, and guaranteed 1 Gbps bandwidth class. Scale vertically (add CPU/RAM/disk) or horizontally by composing multi-tier stacks. Unmanaged or fully managed by Seeweb engineers—fit for production web, DB, and agency workloads that need predictable isolation rather than noisy shared hosts.
GPU cloud for AI/ML (NVIDIA + AMD)
Cloud Server GPU instances target training, inference, and HPC-style jobs with NVIDIA cards (H100, H200, A100, L40S, RTX A6000, L4 and related) and AMD options including MI300X. Ready-to-use drivers, Terraform support, hourly usage billing, and Spot Instances with a short preemption notice suit bursty or interruptible jobs. Data stays on European sites per vendor GDPR messaging—confirm region per SKU at order time.
Managed Kubernetes Service (SKS)
SKS is Kubernetes-as-a-Service with a HA control plane, worker sizing you design with Seeweb, CSI storage (Vast Data driver on the product page), optional S3-compatible object storage, load balancing, and GPU workers (including MI300X and NVIDIA H-class cards). Aimed at teams that want orchestration without running etcd themselves; Proactive Support tiers add predictive monitoring for production clusters.
VPC, Foundation Server, and hybrid DC footprint
Virtual Private Cloud builds private infrastructures on VMware or Proxmox; Foundation Server targets dedicated bare-metal-style capacity for business-critical virtualization. Combine with housing/colocation in Milan and Frosinone plus European partner sites for DR. Useful when you need private networking and dedicated hosts under the same Italian operator rather than public multi-tenant only.
ACN-qualified IaaS and CISPE EU residency claims
Seeweb publishes ACN CSP qualification (QI2 infrastructure; QC2 for Foundation Server Pro, VPC, Shared CPU/High Memory cloud, and AI/supercomputing infrastructures) for Italian public administration procurement. CISPE Code of Conduct registration is used to assert customer data stored exclusively in European territories. Pair these claims with your own DPIA—they are procurement signals, not a substitute for a signed DPA.

STACKIT

Compute Engine VMs and GPUs in group-owned EU regions
Provision Linux and Windows virtual machines, GPU-backed instances, automated server backup and OS update management from the STACKIT portal, CLI, API, or Terraform. Workloads land in European cloud regions such as EU01 (Germany) and EU02 (Austria) on Schwarz Group–operated infrastructure rather than rented hyperscaler bare metal. Best for teams that need predictable EU residency for general compute and AI/ML training or inference on GPU shapes—confirm available instance families per region before migration.
STACKIT Kubernetes Engine (SKE)
Managed, CNCF-compliant Kubernetes with a highly available control plane, automated Kubernetes/OS upgrades, repair functions, pod and node autoscaling, optional temporary cluster shutdown, and automation via Terraform, SKE API, and CLI. Suited to cloud-native apps, stateful workloads on block storage, and ML pipelines that must stay in European regions. Not a self-hosted kubeadm replacement—you consume a managed service with STACKIT-controlled plane components.
Managed databases, messaging, and observability
Fully managed PostgreSQL Flex, MongoDB Flex, SQL Server Flex, MariaDB, Redis, OpenSearch, and RabbitMQ plus LogMe, Logs, and Observability stacks reduce ops load for application teams. Flex models emphasize automated maintenance, backups, and scaling inside the STACKIT cloud. Ideal when you want PaaS data services under the same German operator as your VMs/K8s—validate HA topology, backup retention, and region pairing for each service.
Confidential computing and key/secrets control
Confidential Server and Confidential Kubernetes options aim to protect data in use with hardware-backed isolation; Secrets Manager and Key Management Service handle secret storage/rotation and cryptographic operations. Useful for regulated or multi-tenant sensitive workloads beyond disk encryption alone. Confirm attestation models, supported node types, and which compliance reports cover these products.
EU colocation with hybrid path to public cloud
Racks, cages, and private rooms in Neckarsulm, Ellhofen, and Ostermiething facilities—with remote hands, carrier connectivity, and hybrid designs that keep non-migratable hardware next to STACKIT public cloud. Positions STACKIT for gradual cloud adoption without a pure forklift. Colocation is quote-driven and site certifications can vary by facility; request site data sheets early.
Object, block, file, backup, and archiving storage
S3-compatible object storage, high-performance block volumes, NFS file storage, backup storage, and audit-oriented archiving for retention workloads. Supports application data, VM disks, and compliance archives inside the same European footprint as compute. Check durability/replication claims and cross-region options against your RPO/RTO rather than assuming hyperscaler multi-region defaults.

Assurance & compliance: Seeweb vs STACKIT
Assurance & compliance	Seeweb	STACKIT
Independent security / no-logs audit	Not applicable IaaS/data-center provider—not a consumer no-logs VPN. Assurance is via ISO/ISMS and sector qualifications rather than a no-logs report.	Vendor claimed Vendor claims BSI C5 Type 2 for a listed IaaS/storage product set; reports available on request (iso@digits.schwarz). Not a VPN-style no-logs audit.
ISO 27001	Vendor claimed Vendor certifications page: ISO/IEC 27001:2022, AXE REGISTER cert IT18-27702D, valid until 28 Nov 2027; locations Milan & Frosinone. Re-verify serial in procurement.	Vendor claimed Certificates page claims ISO/IEC 27001 ISMS (with downloadable cert links) plus ISO 27017 and ISO 27018; also ISO 27001 based on IT baseline protection for named IaaS components.
ISO/IEC 27017 (cloud security)	Vendor claimed Appendix to ISO 27001 certificate on certifications page; same validity window stated.	Not listed
ISO/IEC 27018 (cloud PII)	Vendor claimed Appendix to ISO 27001 certificate on certifications page; same validity window stated.	Not listed
SOC 2 / SOC 3	Not found No SOC 2/3 report advertised on the official certifications page at research time.	Vendor claimed Vendor states ISAE 3000 (SOC 2) and ISAE 3402 in addition to C5 Type 2; obtain current reports under NDA/request.
CISPE Data Protection Code of Conduct	Vendor claimed Vendor states CISPE registry presence and European data storage under the Code (since 31 May 2017 on certifications page).	Not listed
ACN Qualified CSP (QI2/QC2)	Vendor claimed IaaS qualification for Italian PA; QI2 infrastructure and QC2 for listed products including AI/supercomputing infrastructures (19 Jan 2023 on certifications page).	Not listed
CSA STAR Level 1	Vendor claimed Stated for Virtual Private Cloud and Foundation Server PRO (6 July 2022 on certifications page).	Not listed
GDPR / EU data protection	Vendor claimed Italian controller/processor entity, European hosting messaging, privacy policy, ISO 27018 claim, CISPE; confirm DPA for your processing roles.	Vendor claimed EU legal entity; vendor claims GDPR-aligned operation with processing in own DE/AT data centers and ISO 27018 claims for PII in the cloud.
US CLOUD Act exposure (indicative)	Partial Italian Seeweb S.r.l., Italian DHH parent, no known US parent; primary hosting on European DCs (not AWS/GCP/Azure). Third-party Swiss/BG facilities and global transit carriers exist. Indicative only—not legal advice.	Partial German operator under Schwarz Digits / Schwarz Group; no known US parent; customer cloud claimed on group-owned EU DCs without named AWS/GCP/Azure data-plane hosts. Partial (not a clean bill): confirm AVV subprocessors and any non-EU support tools. Indicative only—not legal advice.
Data processing agreement (B2B)	Vendor claimed Art. 28 DPA language used for Seeweb-operated services (e.g. published for Regolo); request current signed DPA + TOMs + subprocessors for core cloud/IaaS contracts.	Not found No self-serve public AVV/DPA URL confirmed during research; expect contract packaging—request AVV, TOMs, and subprocessor list in procurement.
EU AI Act	Partial Infrastructure/GPU provider and Rethic.AI partnership messaging; AI Act duties mainly fall on customer AI systems. Not a full provider high-risk AI assessment by EuropeanStack.	Not applicable Primary offering is IaaS/PaaS infrastructure; optional AI Model Serving and related data/AI products may need separate AI Act analysis if you deploy high-risk AI systems.
BSI C5 Type 2	Not listed	Vendor claimed C5 Type 2 claimed for Compute Engine (incl. GPU), Windows/RHEL, server backup/update management, block/object/backup/file storage, archiving—not automatically every PaaS product.
TISAX Level 3	Not listed	Vendor claimed Vendor claims TISAX Level 3; verification via ENX portal (assessment ID ATA163-1 / scope ID SH938N per certificates page).

Considerations & known limitations: Seeweb vs STACKIT
Considerations & known limitations	Seeweb	STACKIT
Smaller global footprint than hyperscalers	Medium Region set is European (IT/CH/BG) with a mid-size operator catalog. Multi-continent apps or niche managed PaaS may force multi-cloud or a larger EU peer.	Not listed
Certifications are vendor-published	Low ISO and ACN claims include certificate numbers and dates on seeweb.it, but EuropeanStack did not re-download every registry PDF. Re-verify serials and scope statements in formal assurance reviews.	Not listed
No single public subprocessor register found	Medium Facility partners and network carriers are described on DC pages, but a consolidated customer-content subprocessor list was not found as one public document. Request annex under NDA for regulated workloads.	Low Marketing asserts own data centers and EU processing; a complete public subprocessor/support-tool list was not found on the pages reviewed. Practical impact: force AVV + subprocessor exhibits before production personal data.
GPU Spot Instances can be interrupted	Low Vendor documents ~2-minute notice before Spot termination when On-Demand needs capacity. Architect batch/checkpointing; do not run sole critical control planes only on Spot.	Not listed
Some sites use third-party data centers	Low Lugano, Zurich, and Sofia are presented via partner facilities (Swisscom, Global Data Centers Switzerland AG, Evolink). Italy-only residency must be contracted explicitly if required.	Not listed
Narrower service map than US hyperscalers	Not listed	Medium STACKIT covers core compute, K8s, databases, and storage, but global specialty services and third-party marketplace depth lag AWS/Azure/GCP. Practical impact: multi-cloud or lift-and-shift of complex hyperscaler architectures may need redesign.
C5 Type 2 is product-scoped	Not listed	Medium Attestation tables list specific IaaS/storage products. Teams assuming every managed database or PaaS SKU is C5 Type 2 covered without reading the scope can mis-state compliance. Practical impact: map each in-scope service before audits.
Retail-group operator concentration	Not listed	Low Economic stability is a stated strength of Schwarz Group ownership, but roadmap and commercial leverage differ from pure-play clouds. Practical impact: negotiate exit, data export, and roadmap commitments explicitly.

Fit

Seeweb

Best fit when

Italian PA and public-sector projects that need ACN-qualified IaaS (verify QI2/QC2 scope against the tender)
AI/ML teams wanting European GPU hours (NVIDIA H-class / L-class and AMD MI300X) with usage-based or Spot billing
System integrators and SaaS vendors that prefer managed Kubernetes (SKS) plus Italian engineering support over pure DIY clusters
Workloads that must stay under Italian/EU legal entities with CISPE-style European data-location claims
Hybrid designs combining Cloud Servers or VPC with colocation in Milan/Frosinone and European DR sites

Poor fit when

Applications that depend on dozens of global regions or proprietary hyperscaler PaaS (Lambda-style, global managed DB fleets)
Buyers seeking a free tier or purely self-hosted open-source cloud distribution without a commercial operator
Teams that need a published SOC 2 Type II report as a hard gate (not found on Seeweb certifications page)
Organizations that refuse any third-party facility (Swiss/Bulgarian partner DCs) without Italy-only contractual pins

Consider instead when

When: You need a large multi-country European cloud with denser product catalog and strong self-service DX
Consider: OVHcloud or Scaleway
Broader regions and developer tooling; less Italian ACN-specific packaging than Seeweb.
When: You want another Italian sovereign cloud with mass-market public-cloud SKUs
Consider: Aruba Cloud
Closest national peer; compare GPU/K8s maturity and PA qualification details side by side.
When: You mainly need simple self-service VMs/storage at aggressive commercial terms without Italian PA focus
Consider: Hetzner
Strong for general-purpose EU VMs; different compliance and support model.
When: You require global enterprise PaaS and marketplace ecosystems
Consider: AWS or Microsoft Azure
Accept US-group cloud and CLOUD Act exposure tradeoffs for breadth.

STACKIT

Best fit when

Public-sector, healthcare, finance, or retail teams that require EU residency under a German operator with dual DE/AT regions
Platform teams standardizing on managed Kubernetes (SKE) plus VMs and managed databases in one European cloud
Organizations migrating gradually via colocation racks/cages in STACKIT facilities next to public cloud projects
Buyers that prioritize BSI C5 Type 2 and ISO 27001 family claims on core compute/storage over hyperscaler marketplace depth
Workloads that benefit from GPU compute, confidential computing options, or AI model serving inside the same sovereign stack

Poor fit when

Architectures that depend on many specialized AWS/Azure/GCP managed services or global multi-continent regions
Teams that must self-host the full cloud control plane rather than consume a managed public cloud
Simple single-VM or low-ops hobby hosting where a basic VPS provider is enough
Procurement that needs every PaaS product under the same C5 Type 2 table without reviewing scope gaps
Use cases requiring non-European data residency as a primary requirement

Consider instead when

When: You need a wider multi-country European region map and a large independent cloud portfolio
Consider: OVHcloud or Scaleway
Different ownership and product cultures; still not US hyperscaler breadth
When: Your workload is mainly simple German VMs/web hosting without managed K8s/PaaS depth
Consider: IONOS (or similar DE hosts)
Often simpler packaging for commodity compute
When: You require global regions, the largest third-party marketplace, or existing multi-cloud tooling locked to hyperscaler APIs
Consider: Amazon Web Services, Microsoft Azure, or Google Cloud Platform
Trade EU ownership of the operator for ecosystem scale; apply your own CLOUD Act / transfer analysis
When: Swiss or other non-DE sovereignty framing matters more than Schwarz Group scale
Consider: Exoscale
Smaller portfolio; different jurisdiction story

Open questions for due diligence

Seeweb

Will Seeweb provide a current signed DPA, TOMs, and full subprocessor list scoped to our SKUs and regions?
Can every required product (GPU, SKS, VPC) be pinned exclusively to Milan/Frosinone under contract?
What is the exact SLA and support tier mapping for our architecture (marketing cites up to 99.99%)?
Are current ISO certificate serials and ACN register entries still valid for the products we will buy?
Is IBM Spectrum Protect operated entirely on Seeweb infrastructure, or does any backup path leave European facilities?

STACKIT

Will STACKIT provide a signed AVV/DPA, current TOMs, and a full subprocessor list covering support, monitoring, and marketplace components?
Which of our target services (SKE, PostgreSQL Flex, Confidential Kubernetes, etc.) fall inside the latest C5 Type 2 and ISO reports?
What are the exact region availability, geo-redundancy options, and SLA credits for our workloads across EU01/EU02 (and any additional regions)?
What are exit, data export, and termination assistance terms for large object stores and managed databases?
For public-sector or KRITIS use cases: which additional attestations, clearance processes, or reference architectures are required?