(Past and Present)
- General Building Contractors Association (GBCA)
- The Associated General Contractors of America (AGC)
- Construction Financial Management Association
- American Society of Professional Estimators
- American Society of Plumbing Engineers
- American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)
- The Institute of Electrical and Electronics Engineers (IEEE)
- The National Fire Protection Association (NFPA)
- International Code Council