The union, called ZOS United-CWA, has been recognised by parent company Microsoft and is made of 461 members, including “web developers, designers, engineers, and graphic artists,” the announcement said.

A majority of the unionised workers are based in Maryland, but they are also located across the US in California, New York, Pennsylvania, Texas, and Wisconsin.

This is the latest union to be created via CWA’s Campaign to Organize Digital Employees (CODE-CWA), which the organisation says has seen over 6,000 workers unionise since 2020.