Estonian State Web Centre (e-state)
Estonian Chamber of Commerce and Industry
EFCA
SKOL ry
Estonian Association of Construction Entrepreneurs
Estonian Architects Association
Estonian Association of Civil Engineers
Association of Construction Material Producers of Estonia
Association of Estonian Facilities Administrators and Maintainers
International Federation of Consulting Engineers (FIDIC)
Ministry of Economic Affairs and Communications
Ministry of the Environment
Estonian Centre for Standardisation
Estonian Employers´Confederation