Cyso Cloud vs Webswing

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

Both listed as alternatives to: Amazon Web Services (AWS), 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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Webswing

Ireland· Cloud Computing

Needs review

Shortlist when you must browser-enable an existing Java Swing/JavaFX/SWT/NetBeans or Oracle Forms estate without a rewrite and can run a self-hosted session tier. Skip when you are building a greenfield web UI only, or when the app depends on video, 3D acceleration, or ultra-low-latency graphics. Consider Citrix/VDI or a hyperscaler cloud desktop when you need generic desktop remoting beyond Java UI toolkits.

EU-operatedSelf-hostedISO 27001 (claimed)No-rewrite Java UIOracle Forms capable

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Highlighted rows differ between the two products.

Cyso Cloud vs Webswing: Snapshot
Feature	Cyso Cloud	Webswing
Country of origin	Netherlands	Ireland
Category	Cloud Computing	Cloud Computing
Open source	Yes	No
Self-hosted	No	Yes
Headquarters	Netherlands	Ireland
Legal entity	Cyso B.V. (part of Cyso Group B.V.), Wognumsebuurt 3, 1817 BH Alkmaar; KVK 37133395	WEBSWING LIMITED (Webswing Ltd.), 93 Upper George's Street, Dun Laoghaire, A96 V1K8 Dublin, Ireland
Governing law	Not listed	Ireland
US parent / control	No known US parent	No known US parent
CLOUD Act exposure (indicative)	Low	Low
EU-hosted status	Not listed	Unknown
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.	Product runtime is customer-operated (on-prem, customer cloud, Docker, or Kubernetes). Vendor Client Portal and marketing site use listed processors including Google Ireland, Meta Ireland, LinkedIn Ireland, and The Rocket Science Group LLC (US) for email marketing; those apply to vendor website/portal data, not to self-hosted application sessions.
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.	Self-hosted platform that runs Java Swing, JavaFX, SWT, NetBeans, and Oracle Forms apps in the browser without rewriting them.
Tags	cloud iaas openstack kubernetes gdpr netherlands eu-hosting sovereign-cloud	self-hosted java desktop-to-web oracle-forms application-modernization on-premise html5 ireland

At a glance: Cyso Cloud vs Webswing
At a glance	Cyso Cloud	Webswing
HQ	Alkmaar, Netherlands	Dublin, Ireland
Legal entity	Cyso B.V. (Cyso Group)	WEBSWING LIMITED (CRO 564226)
Founded	1997 (group); public OpenStack cloud since 2016 (Fuga); Cyso Cloud brand 2025	2015 (Dublin); product lineage from ~2012
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
License model	Not listed	Commercial + SLA (evaluation available); AGPL only ≤20.2
Deployment	Not listed	Self-hosted (ZIP, Docker, Kubernetes, cluster)
UI frameworks	Not listed	Swing, JavaFX, SWT, NetBeans, Applets, Oracle Forms

Key capabilities: Cyso Cloud vs Webswing
Key capabilities	Cyso Cloud	Webswing
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	Yes
NEN 7510 (claimed)	Yes	Not listed
Self-hosted	Not listed	Yes
No-rewrite Java UI	Not listed	Yes
Oracle Forms capable	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.

Webswing

Browser delivery without rewriting Java UI
Runs Swing, JavaFX, SWT, NetBeans Platform, Applets, and Oracle Forms in HTML5 browsers over WebSockets with no required source changes. End users need a browser only, not a local JRE or plugin.
Customer-controlled self-hosted runtime
Install from a distribution ZIP or containers on your own servers, VMs, Docker, or Kubernetes. Standalone and Cluster Engine modes cover single-node pilots through multi-node scale-out with admin monitoring.
Incremental modernisation beside legacy screens
Modernisation Framework and JsLink let React, Angular, Vue, Vaadin, or APEX components coexist with Java UI so teams can rewrite modules over time instead of a big-bang cutover.
Enterprise auth and session operations
Pluggable security modules include SAML2, OpenID Connect, Keycloak, LDAP, and custom providers. Admin Console adds session mirror view, recording/playback, logs, and multi-tenant path isolation.
Built-in printing, files, and clipboard bridges
Browser-side printing with preview, isolated upload/download folders, and clipboard integration cover common desktop workflows that break in naive remote-app setups.

Assurance & compliance: Cyso Cloud vs Webswing
Assurance & compliance	Cyso Cloud	Webswing
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.	On request / NDA Footer states regular security testing is available upon request; no public independent audit PDF found.
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 Site footer: Webswing Limited maintains an ISO/IEC 27001-certified ISMS. Independent cert registry entry not verified in this pass.
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.	Not found No SOC 2/3 claim found on public site pages reviewed.
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 Privacy policy names WEBSWING LIMITED as Irish controller under GDPR; FAQ states GDPR alignment for company contact data.
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 EU entity with no known US parent; self-hosted runtime keeps sessions on customer infra. Vendor website/portal lists US-group processor The Rocket Science Group LLC (email) plus Google/Meta/LinkedIn Ireland entities for analytics/ads. 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 Privacy policy references Art. 28 DPAs with Webswing's own processors; no public customer-facing DPA download found. Request during 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 Core product is application delivery/runtime, not an AI system. Prague research affiliate explores AI; not the catalogued product.

Considerations & known limitations: Cyso Cloud vs Webswing
Considerations & known limitations	Cyso Cloud	Webswing
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.	Not listed
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
Higher per-session server resources	Not listed	Medium Docs state each browser session needs more server CPU/memory than a native web app. Capacity planning and Cluster Engine matter for large concurrent user counts.
Video, 3D, and low-latency limits	Not listed	Medium Official overview: video not supported, limited sound, no 3D hardware acceleration, poor fit for real-time action games due to rendering latency.
Proprietary licensing since 21.1	Not listed	Low Current releases require commercial license + SLA. AGPL/public source stopped after 20.2. Source access for licensed customers is via Client Portal rather than a public repo.
Vendor portal/marketing US-group processors	Not listed	Low Privacy policy lists The Rocket Science Group LLC and major ad/analytics vendors for website/portal data. Irrelevant to on-prem session pixels, but relevant if you put sensitive personal data only into vendor portals.
ISO 27001 not independently verified here	Not listed	Low Vendor claims ISO/IEC 27001-certified ISMS on the site footer. Ask for the current certificate and scope before treating it as verified.

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.

Webswing

Best fit when

Enterprises and ISVs with production Swing, JavaFX, SWT, NetBeans, or Oracle Forms applications that must become browser-accessible without a rewrite
Teams that can operate a self-hosted Webswing tier (on-prem, VM, Docker, or Kubernetes) and size CPU/memory per concurrent session
Organisations planning incremental UI modernisation (React/Angular/Vue/APEX) while keeping proven Java screens online
Buyers who want Irish/EU contracting (WEBSWING LIMITED) and customer-controlled residency for application sessions
Public-sector or regulated estates retiring endpoint Java installs or reducing Citrix/VDI dependency for Forms/Swing only

Poor fit when

Greenfield products with no existing Java desktop or Forms UI to preserve
Multimedia, video, 3D-accelerated, or real-time action-game style interfaces (documented limitations)
Teams unwilling to run and scale a server-side session farm for interactive users
Buyers who require OSI-approved open source for the current release line (proprietary since 21.1)

Consider instead when

When: You need generic Windows/Linux desktop remoting rather than Java UI toolkit remoting
Consider: Citrix / enterprise VDI, or Microsoft Azure Virtual Desktop
Webswing FAQ positions itself as a narrower alternative to Citrix for Forms/Java estates.
When: You are rewriting the UI entirely and have no need to keep Swing/Forms screens running
Consider: Native web frameworks (React, Angular, Vue) or Oracle APEX without a Webswing bridge
Webswing's Modernisation Framework is for coexistence during migration, not a mandatory layer for new UIs.
When: You want a hyperscaler-managed browser app streaming control plane
Consider: AWS AppStream / WorkSpaces-class services or Azure cloud desktop offerings
Trade self-hosted EU software control for managed cloud operations.

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?

Webswing

Will Webswing provide the current ISO 27001 certificate PDF and statement of applicability scope?
Is a customer DPA available for Client Portal / support data processing, and which subprocessors apply to licensed customers?
Where is portal.webswing.org physically hosted, and are any non-EU regions used for backups?
For your Forms/Swing edge cases (WebUtil, local devices, printers), which patterns are supported without code changes?