Building Owners and Managers Association (BOMA)
http://www.boma.org

Construction and Real Estate Network (CoreNet)
http://www.corenetglobal.org

Energy Star
http://www.energystar.gov

FM Link
http://fmlink.com

GSA Advantage
https://www.gsaadvantage.gov

Institute of Real Estate Management (IREM)
http://www.irem.org

International Facility Management Association (IFMA)
http://www.ifma.org

North American Board of Certified Energy Practitioners (NABCEP)
http://www.nabcep.org

Occupational Health & Safety Administration (OSHA)
http://osha.gov

U.S. Green Building Council (USGBC)
http://www.usgbc.org