ISA is the professional organisation representing
Australian surveying, land information and spatial information
professionals, or spatial scientists.. It has 3800 members in
Australia and overseas, working in private, public and academic
The Institution was formed in 1952 and has
divisions in each state and territory. Each division has its own
identity, constitution and assets. The national body decides on
membership and national issues.
The Institution is 'non-profit', with member fees
its principal income. Fees vary considerably between divisions.
Larger divisions have office space and paid staff, while smaller
divisions rely on honorary office-bearers.
The Institution considers professional surveying
to be "the discipline dealing with policy, administration,
collection, measurement, analysis, interpretation, portrayal and
dissemination of spatially-related land and sea information,
together with associated design and management".