W.W. Gay and its management hold membership in the following trade and civic organizations:

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

National Utility Contractors Association (NUCA)

Associated Builders and Contractors (ABC)

Florida Healthcare Engineering Association (FHEA)

Florida Engineering Society (FES)

Air Conditioning Contractors of America (ACCA)

American Society of Mechanical Engineers (ASME)

U.S. Green Building Council (USGBC)

National Fire Protection Association (NFPA)

National Society of Professional Engineers (NSPE)

Environmental Protection Agency Lead-Safe Certified Firm (EPA-LSCF)

Associated General Contractors of America (AGC)

Rotary International

Plumbing-Heating-Cooling Contractors Association (PHCC)

National Environmental Balancing Bureau (NEBB)