Why choose Castlerock

Castlerock is a leading provider of managed ICT services in South Africa. We have a well-refined knowledge of technology best practices, specifically within the South African business context. Our services range from desktop, network and server support through to value-added services in respect of hosting, connectivity, voice, data management and back-up, as well as the provisioning of cloud services and disaster recovery solutions.

We can provide you with a comprehensive, responsible, fully inclusive and cost-effective bundle of IT services. Our dynamic teams are enthusiastic and motivated in supporting our valued client base. The majority of our large business clients started small, working with us from the beginning, and we have grown in partnership with them. Let us show you how we can help your business grow.


Serving South African
businesses with all of
their ICT needs.

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Our Vision

We understand the importance of technology to small and medium sized businesses and organisations, and its challenges. For us, it is crucial to provide our clients the tools they need to succeed and the responsive problem-solving and guidance they need to leverage their technology for success. Through cutting-edge ICT knowledge and transparent communication, we endeavour to become partners with our clients, rather than just another service provider.

Our Mission

Castlerock is a dynamic team committed to fostering our clients’ success through the support of their infrastructure and the provisioning of reliable and robust technical services with quick and efficient turnarounds. We operate on the principle of ownership, with our dedicated account management teams 'owning' the complete IT management functions of our clients, so that they don't have to.

Our Team


Aidan Casserley
Chief Executive & Founder


Damian Casserley
Chief Technical Officer


Chadley Paulse
Field Service Engineer


Dale Holtzhausen
Senior Cloud Services and Infrastructure Engineer


Rhonwyn Isaacs
“IT and Cloud Service Engineer


Ayesha Freeman
Service Delivery Manager


Byron Kirchoff
Level-2 Cloud Services and Infrastructure Engineer


Michelle Jaffe
Human Resource Manager


Byran Viljoen
Cloud Services and Infrastructure Engineer


Dominic Herman