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Welcome to Sigma. Sigma - your business, completed.

Sigma have been providing IT solutions in Jersey and Guernsey for over 50 years. In an ever changing industry, our consultants, engineers and programmers have ensured our clients have everything needed to keep ahead of their competition. Our experienced team offers advice and support on everything from system design and security to IT training.


With unrivalled after-sales service and a 24-hour support line, manned by in-house highly qualified engineers, we make problem solving an art.