The Marcel Doret business park in Calais extends over a 50-hectare area facing the A26/E15 motorway (to Paris/Reims) and is home to businesses offering services for the tertiary sector as well as companies providing services for industry. Part of the business park lies in an Urban Tax-Free Zone (ZFU) which offers tax benefits and reductions on employee social security contributions for eligible companies.

The Opal Coast Chamber of Commerce and Industry has various premises in the Urban Tax-Free Zone including: 

  • 1 business incubator,
  • 3 business villages.

A range of services, such as domiciliation services, shared secretarial services, and mail services, are available on site.