Cyso Cloud vs STACKIT

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

Both listed as alternatives to: Amazon Web Services (AWS), Google Cloud Platform, Microsoft Azure

Cyso Cloud

Netherlands· Cloud Computing

Needs review

Shortlist Cyso Cloud when you want Dutch-operated OpenStack IaaS and KCSP managed Kubernetes with AMS/FRA residency and engineer-to-engineer support. Skip when you need global hyperscaler regions or default encryption-at-rest object storage—consider OVHcloud or Scaleway for broader European multi-region IaaS, or keep a hyperscaler for worldwide PaaS depth.

EU-operated (NL)OpenStack IaaSManaged Kubernetes (KCSP)AMS + FRA regionsISO 27001 (claimed)NEN 7510 (claimed)

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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.

Cyso Cloud vs STACKIT: Snapshot
Feature	Cyso Cloud	STACKIT
Country of origin	Netherlands	Germany
Category	Cloud Computing	Cloud Computing
Open source	Yes	No
Self-hosted	No	No
Headquarters	Netherlands	Germany
Legal entity	Cyso B.V. (part of Cyso Group B.V.), Wognumsebuurt 3, 1817 BH Alkmaar; KVK 37133395	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 public IaaS on Cyso-operated hardware in Tier 3 facilities in Amsterdam and Frankfurt (3 AZs per region); vendor states storage replicas/backups stay in the selected EU region. Not marketed as AWS/Azure/GCP-hosted IaaS. Ancillary tools disclosed at group level include website analytics (PostHog) and third parties for payments/support; status tooling has referenced Atlassian Statuspage. Full public customer-workload subprocessor list not found.	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	Dutch OpenStack IaaS from Cyso B.V. with AMS/FRA regions, managed Kubernetes (KCSP), S3-compatible object storage, and EU data residency for teams avoiding hyperscaler lock-in.	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 iaas kubernetes sovereign-cloud openstack gdpr netherlands eu-hosting	cloud iaas kubernetes sovereign-cloud infrastructure privacy paas

At a glance: Cyso Cloud vs STACKIT
At a glance	Cyso Cloud	STACKIT
HQ	Alkmaar, Netherlands	Not listed
Legal entity	Cyso B.V. (Cyso Group)	Not listed
Founded	1997 (group); public OpenStack cloud since 2016 (Fuga); Cyso Cloud brand 2025	Not listed
Regions	Amsterdam, Frankfurt (more under investigation)	Not listed
Stack	OpenStack + managed Kubernetes (KCSP)	Not listed
Commercial model	Pay-as-you-go / hourly; optional trial via sales	Not listed
HQ / legal entity	Not listed	Bad Friedrichshall / Neckarsulm area, Germany — Schwarz Digits Cloud GmbH & Co. KG
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: Cyso Cloud vs STACKIT
Key capabilities	Cyso Cloud	STACKIT
EU-operated (NL)	Yes	Yes
OpenStack IaaS	Yes	Not listed
Managed Kubernetes (KCSP)	Yes	Not listed
AMS + FRA regions	Yes	Not listed
ISO 27001 (claimed)	Yes	Not listed
NEN 7510 (claimed)	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

Cyso Cloud

OpenStack public IaaS on EU hardware
Vanilla OpenStack compute (roughly 2–64 vCPUs and up to 512 GB RAM flavors), NVMe-backed ephemeral and block volumes, dashboard plus OpenStack APIs/CLI. Deployed on Cyso-managed hardware in Amsterdam and Frankfurt with three availability zones per region so multi-AZ designs are first-class.
S3-compatible NVMe object storage
Region-scoped object storage with triple-disk redundancy, versioning, lifecycle rules, object lock, pre-signed URLs, and standard S3 clients (AWS CLI, Rclone, MinIO mc, SDKs). Data and replicas stay in the selected AMS or FRA region; default server-side encryption at rest is not applied—plan client-side or customer-key approaches for sensitive objects.
Enterprise Managed Kubernetes (KCSP)
CNCF Kubernetes Certified Service Provider managed control planes with multi-version support, automated upgrades, worker groups (including GPU/high-memory options), HPA/VPA/node autoscaling, Garden Linux workers, Terraform/kubectl/k9s workflows, and cluster hibernation to scale workers to zero on a schedule.
European networking and multi-AZ design
VPC-style private networks, security groups as virtual firewalls, load balancers with health checks, floating/reserved IPs, Anycast DNS, IPv6 dual-stack, native edge DDoS mitigation, and Direct Connect-style private links. SLA text targets 99.99% monthly uptime for listed compute, volume, object, and networking services when multi-AZ conditions are met.
Private cloud and wholesale options
Same OpenStack-based stack can be deployed as a private cloud on customer data-centre hardware (including VMware-alternative messaging) or white-label/wholesale models for partners—useful when public multi-tenant regions are not enough for isolation or residency policy.

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: Cyso Cloud vs STACKIT
Assurance & compliance	Cyso Cloud	STACKIT
Independent security / no-logs audit	Not found Security measures and pen-testing philosophy are described; no public independent no-logs or IaaS audit report found beyond ISMS certs.	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 publishes ISO/IEC 27001 certificate PDF via Trust Centre / certifications (listed expiry into 2028). Not re-checked on an independent registry for this draft.	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.
SOC 2 / SOC 3	Not found Certifications page explains SOC 2 Type II generally; no clear statement that Cyso currently holds a published SOC 2 report.	Vendor claimed Vendor states ISAE 3000 (SOC 2) and ISAE 3402 in addition to C5 Type 2; obtain current reports under NDA/request.
GDPR / EU data protection	Vendor claimed EU legal entity; AMS/FRA residency claims; Trust Centre GDPR section. Obtain DPA and TOMs for controller/processor mapping.	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 EuropeanStack assessment: EU entity, no known US parent, primary IaaS claimed on self-operated NL/DE hardware (not AWS/GCP/Azure). Partial because no full public subprocessor schedule and ancillary SaaS (e.g. PostHog analytics, Atlassian-linked status) may involve non-EU providers. 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 Marketing (e.g. Azure alternative pages) states Cyso signs a DPA under Dutch law; confirm current template and subprocessor annex in contracting.	Not found No self-serve public AVV/DPA URL confirmed during research; expect contract packaging—request AVV, TOMs, and subprocessor list in procurement.
NEN 7510 (Dutch healthcare information security)	Vendor claimed Vendor publishes NEN 7510 certificate PDF on certifications/Trust Centre pages.	Not listed
EU AI Act	Not applicable IaaS/infrastructure platform, not an AI system product.	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: Cyso Cloud vs STACKIT
Considerations & known limitations	Cyso Cloud	STACKIT
Only two live public regions	Medium Production public cloud is AMS and FRA today. Multi-continent latency, in-country residency outside NL/DE, or extensive multi-region DR across Europe may require another provider or private cloud.	Not listed
No default object storage encryption at rest	Medium Official FAQs state no standard server-side encryption at rest; TLS in transit and client-side/SSE-C patterns are recommended. Regulated designs must implement key management outside default storage behaviour.	Not listed
Incomplete public subprocessor inventory	Medium Primary hosting path is vendor-operated EU hardware, but privacy materials list third parties without a dedicated live subprocessor register for all ancillary processing. Request the schedule under NDA or DPA annex.	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.
Certifications are vendor-published PDFs	Low ISO 27001 and NEN 7510 are claimed with certificate PDFs on Cyso sites; this draft did not independently verify registry entries. Treat as claimed until audit pack is reviewed.	Not listed
Smaller ecosystem than hyperscalers	Low Fewer managed PaaS services and marketplace options than AWS/Azure/GCP. Expect to run more of the stack yourself on OpenStack/Kubernetes.	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

Cyso Cloud

Best fit when

European product/SaaS teams that need VMs, volumes, and S3-compatible storage with explicit Amsterdam or Frankfurt residency
Organisations standardising on OpenStack APIs/CLI to reduce hyperscaler lock-in and support multi-cloud portability
Teams wanting CNCF KCSP managed Kubernetes with hibernation and pay-as-you-go worker nodes on EU infrastructure
Dutch healthcare-adjacent or regulated buyers who need NEN 7510 alongside ISO 27001 claims from a NL operator
Buyers evaluating a private OpenStack cloud or VMware alternative on their own data-centre hardware

Poor fit when

Workloads that require many global regions, edge PoPs, or a large marketplace of managed PaaS services
Storage designs that assume default server-side encryption at rest without customer-managed keys
Procurement that must rely only on a fully published subprocessor schedule without vendor engagement
Teams that need fully self-serve free tiers or only automated chat support with no human engineering contact

Consider instead when

When: You need many European (or global) regions and a broader product catalogue than two live IaaS regions
Consider: OVHcloud or Scaleway
Larger EU multi-region footprints; different APIs and commercial models.
When: You want Swiss multi-zone simplicity with strong managed Kubernetes emphasis
Consider: Exoscale
Swiss operator profile; fewer regions than hyperscalers but clear sovereignty messaging.
When: You need maximum global PaaS depth, AI services, and worldwide edge
Consider: Amazon Web Services, Microsoft Azure, or Google Cloud Platform
Trade EU ownership for ecosystem breadth; apply your own residency and CLOUD Act analysis.
When: You prioritise high-performance European VMs across more city locations than AMS/FRA only
Consider: UpCloud
Different stack; compare residency guarantees and support model side by side.

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

Cyso Cloud

Can Cyso provide the current DPA, technical and organisational measures, and a dated subprocessor list covering payments, support, analytics, and status tooling?
What is the exact OpenStack release, upgrade cadence, and any divergences from upstream APIs that affect Terraform/automation?
For object storage and volumes, what encryption-at-rest or KMS options can be contractually committed for regulated data?
What are contractual 24/7 escalation SLAs for severity-1 incidents beyond office-hours tech-to-tech support?
Which additional EU regions (if any) have committed go-live dates versus community voting only?

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?