Five of 37 IT & Technology firms position on advisory and project work rather than helpdesk or pure managed ops — two managed-services groups with consulting arms (Resolution IT at 75+ staff, and SquareClouds since 2024), two sector-specialist software houses (Digimap and Tiara), and one decision-automation shop (Optimise Guernsey). —
To auto-generate a shortlist, pick from the options below (or tick businesses from the directory to build your shortlist manually).
Forest·Service·Est. 2007
Part of Zenzero
✦Largest team: 75+
Managed IT and cyber security services company, part of the Zenzero group, with offices in Guernsey, Jersey, and Dubai.
Castel·Service·Est. 1998
✦Most experience: 25+ years
Guernsey GIS and mapping company, sole distribution agent for States of Guernsey and Jersey mapping data since 1998.
St Saviour·Service
IT services firm specialising in decision automation, systems integration, and process consultation for Channel Islands businesses.
St Martin·Professional Service·Est. 2024
Part of Horsepool Group
Guernsey managed IT services and cybersecurity company, established in 2024, serving Channel Islands businesses.
St Peter Port·Professional Service·Est. 2006
Software development and IT consultancy founded in 2006, specialising in bespoke development, project management, and database rescue.
St Peter Port·Organization
IT consultancy, ISO 27001 certified, specialising in Microsoft platform consultancy with five Solutions Partner designations, and offering managed IT services.