Custom software, business systems and websites, built in Guernsey.

Based in Guernsey, DEXM is a dedicated development agency serving clients across Guernsey, Jersey, and the UK. Founded in 2024, DEXM was formed with a singular focus: to deliver excellence in digital solutions.

Services Projects

Our Services.

Websites & Apps

  • Website Development
  • Umbraco Development
  • Customer Portals
  • App Development

Business Systems

  • Bespoke Business Systems
  • Business Process Automation
  • Systems Integration
  • Payment Integration

AI & Emerging Technology

  • AI Agents & Intelligent Workflows
  • Vibe Code to Production
  • AI-Enabled Systems & Automation
  • AI Strategy & Advisory

Support & Consultancy

  • Hosting
  • Support & Maintenance
  • Digital Remediation
  • Digital Consultancy

Our Projects.

GTA

GTA

Bluesky

Bluesky

OSA Recruitment

OSA Recruitment

The Rockhouse

The Rockhouse

Guernsey Arts

Guernsey Arts

AFR Advocates

AFR Advocates

news & insights.

Is Your Business Still Running on Spreadsheets?
17 Oct 2025

Is Your Business Still Running on Spreadsheets?

For many small and medium-sized businesses, spreadsheets and a collection of disconnected tools are what keep the wheels turning. Quotes might live in one file, project updates in another, supplier details in a shared drive somewhere, and reporting spread across multiple tabs. It works when the team is small. But as the business grows, that patchwork setup quickly starts to show its cracks.
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Carbon-Offset Hosting: How DEXM Is Making Every Pageview Greener
03 Oct 2025
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Carbon-Offset Hosting: How DEXM Is Making Every Pageview Greener
Why We Love Umbraco Cloud
08 Sep 2025
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Why We Love Umbraco Cloud

Guernsey's only official umbraco partner.

DEXM is Guernsey's only official Umbraco partner, specialising in both Umbraco CMS and Umbraco Cloud solutions. With our certified expertise, we offer comprehensive services from initial consultation through to deployment and ongoing support. Whether you require bespoke development, migration to Umbraco Cloud, or continuous optimisation, we deliver tailored solutions that maximise your digital presence and business efficiency.

Find out more on Umbraco.com