Rottnest Island Authority
Agency
InfrastructureConstructionWater & Sanitation
Total Value
$605,894,390
Total Contracts
599
Most Recent
14/09/2026
Active Projects
0
See contractsOut to market now
Spend momentumRising+75%12mo vs prior 12mo
Supplier concentration22%to Programmed Facilities Management
Up for recompete0none in next 12mo
Where the spend goes
top 8 suppliersProgrammed Facilities Management (Programmed Maintenance Services)$136M
22% of spend1 contract
N/A$76.5M
13% of spend131 contracts
Programmed Facility Management Pty Ltd$55.5M
9% of spend10 contracts
Calsen Pty Ltd t/as WABi construction (Calsen Pty Ltd)$33.8M
6% of spend1 contract
Guidera O'Connor Pty Ltd$28.7M
5% of spend2 contracts
WA Limestone Contracting Pty Ltd$26.3M
4% of spend1 contract
Arrix$20M
3% of spend1 contract
Colgan Industries Builders (Colgan Industries Pty Ltd)$15.7M
3% of spend9 contracts
Contract history
No contracts match those filters.
