Professional Memberships

• Property Council of Australia
• Green Building Council of Australia
• American Congress of Government Industrial Hygienists
• Tenders SA
• Business SA
• Australian Builiding Codes Board

Registrations/Personnel

• ASHRAE (Pat Callisto)
• Board of Professional Engineers Queensland (Bruce Hatwell)
• Victorian Building Practitioners Board (Pat Callisto, Bruce Hatwell, Anthony Di Marzo)
• Engineers Australia (Bruce Hatwell, Lee Pappageorgiou, Jarrad Clift, John Witzke)
• FPA Australia (Pat Callisto)
• Association of Hydraulics Services Consultants Australia SA Inc (Andrew Shinnick)
• AIRAH (Pat Callisto)
• Australian Building Greenhouse Rating - Nabers Office Accreditation (Anthony Di Marzo)