International Certifications International CertificationsBRE (Building Research Establishment)ISO (International Organization for Standardization)LEED/USGBC (United States Green Building Council) International Certifications BRE (Building Research Establishment) BRE Environmental Assessment Method ISO (International Organization for Standardization) ISO 14000 – Environmental Management ISO 20121 – Sustainable Event Management (following BS8901) LEED/USGBC (United States Green Building Council) LEED (Leadership in Energy and Environmental Design
