GISSA International is an Australian based data management consultancy operating for over 30 years, specialising in the development and management of spatial information systems. GISSA prides itself in its innovative, responsive and inclusive approach with its customers. We link people and processes, gain support for change and deliver true value. With our systematic approach and industry insights you will make decisions and implement processes with confidence, now and for the future. A-SPEC is GISSA International’s flagship suite of infrastructure asset specifications supporting the effective and efficient flows of asset related data into information to support asset management.