
David Simpson Apps is a SaaS company
We create apps and integrations that add value for monday.com, Microsoft & Atlassian customers.
Based in Robin Hood's Nottingham, England, we have over 16 consecutive years experience of developing applications for ecosystems such as monday.com, Atlassian and Microsoft.
David Simpson Apps was founded in 2003 by David Simpson, initially delivering custom Atlassian Confluence and Jira solutions for enterprise clients including AT&T, Netflix, Coca-Cola and Zynga. Those engagements shaped a recurring insight: the same integration and automation problems kept appearing across organisations, and the solutions were always bespoke. So we shifted from consultancy to building reusable marketplace apps.
Today we publish apps on the monday.com Marketplace, the Atlassian Marketplace and the Microsoft 365 ecosystem – serving over 40 million users across more than 240 countries. In 2025 we were named monday.com Community Partner of the Year.
16+
Years building marketplace apps
40M+
Users across our apps
240+
Countries reached
2025
monday.com Community Partner of the Year
Selected enterprise projects from our consultancy years – the foundation that shaped how we build today's marketplace apps.