Working smarter, together. Gamma is a leading provider of Unified Communications as a Service (UCaaS) across the UK, Netherlands, Spain, and Germany, supplying communication solutions via their extensive network of trusted channel partners. We are proud to be one of these.

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Trustmarque and Gamma

We are rare – one of a few Gamma Platinum Partners in the UK, and singled out for our product commitments, customer care, innovation and tech intel. By working with us, you’ll have full confidence with the products and services we bring to the table, and our determination to deliver.

Gamma’s solutions

Gamma offers a range of Unified Communications, Mobile and Connectivity services, providing robust and secure end-to-end business communication and collaboration solutions that enable organisations to easily collaborate internally whilst also providing a better customer experience

Ready for the PSTN and ISDN switch off?

In December 2025, the BT Openreach Public Switch Telephone Network (PSTN) will be switched off. Our experienced consultants will work with you to help you get ready, and most of all, get ahead.

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Gamma’s four key customer pillars

With a combination of network investment, a digital-first approach, and in-house development skills, Gamma has a comprehensive portfolio of communications services and a significant amount of intellectual property. They’re disruptors with innovative and market-leading cloud-based services, such as SIP Trunking and Hosted PBX in the UK.

Gamma Flexible Solutions
Flexible solutions

Gamma’s products, pricing and services can be adjusted to your changing needs.

Gamma Collaborative Culture
Collaborative culture

Drawing on our joint expertise in business communications, We will work with you to achieve the right solution with ongoing support.

Gamma Connected Communications
Connected communications

Sophisticated, dependable and secure products and services designed to help your organisation succeed.

Gamma End To End Control
End-to-end control

End-to-end control and technical integration of your network services for ‘always on’ unified communications.

Kent County Council transition to Microsoft Teams Direct Routing

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Migrating 5,000 users quickly and seamlessly was no mean feat. But Gamma and Trustmarque worked so well together, we felt that we were in safe hands. The project was executed quickly and efficiently, our telephony solutions are now simplified, and we can operate within a fixed budget.”
Stuart Cockett Interim Head of Kent Public Services Network

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