NATSPEC is owned by the following organisations:
Air Conditioning and Mechanical Contractors' Association of Australia
Australian Elevator Association
Australian Institute of Architects
Australian Institute of Building
Australian Institute of Building Surveyors
Australian Institute of Quantity Surveyors
Chief Minister, Treasury and Economic Development Directorate (ACT)
Construction Industry Engineering Services Group
Consult Australia
Dept for Infrastructure and Transport (SA)
Dept of Energy and Public Works (QLD)
Dept of Finance (Federal)
Dept of Finance (WA)
Dept of Infrastructure, Planning and Logistics (NT)
Dept of Treasury and Finance (TAS)
Dept of Treasury and Finance (VIC)
Engineers Australia
Master Builders Australia
Public Works Advisory (NSW)
Standards Australia