We provide a range of innovative cloud services to both public sector and commercial organisations across Scotland and the UK from our offices in Glasgow and Edinburgh.

Whether you need a secure private cloud, public cloud or the best of both worlds with a hybrid cloud platform, we have the expertise to advise and implement a solution tailored to your needs.

Our cloud services can be scaled according to your business requirements with the capability to add resources without server upgrades or downtime.

Moving to a cloud based infrastructure allows better cost management and value as you move to a more predictable OPEX model, giving you maximum return on your investment. You gain access to a wider pool of expertise, strengthened security and agile technology without the significant upfront cost.

Infrastructure as a Service

We offer a full server hosting and operation service that covers the supervision and monitoring of backups, a tailored 24/7/365 support service, security management, software and patch management, and delivers inbuilt software assurance, allowing you to reduce the overhead of maintaining a modern IT infrastructure and enhance and extend your existing IT resource.

Disaster Recovery as a Service

In the event of a disaster, the time it takes to recover critical application and/or data can make or break your organisation. An effective business continuity and disaster recovery plan can streamline how you handle such a situation and can significantly reduce both data loss and reputational damage.

Software as a Service

We have developed hosted solutions for many of our business software systems, with Infor SunSystems, Pegasus, Qlik and Microsoft Dynamics NAV and CRM solutions being made available from our cloud infrastructure. In addition we can implement and support Microsoft Office 365 and Microsoft Dynamics 365 solutions.

Managed Services

A comprehensive range of proactive managed services and support for your business.

Disaster Recovery as a Service

How would your organisation cope in the event of a disaster? What would be the cost to your business if your data couldn't be restored?

Application & Desktop Delivery

Access the applications, desktops and data you depend on whenever, and wherever you need them.

Office 365

Work anywhere, anytime, on any device. Office 365 is ready when you are.

Infor SunSystems

The enterprise financial management system deployed from Castle's cloud.

Microsoft Dynamics 365

Modern, intelligent cloud applications that help move your business forward.
Case Study

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Trusted By
Crown Office & Procurator Fiscal Service
Erskine Care Homes
Scottish Enterprise
Genesis Housing Association
McAvoy Group
Aviva Plc