Rottnest Island Authority
Rottnest Island Authority
Agency
InfrastructureConstructionWater & Sanitation
Total Value
$610,104,213
Total Contracts
610
Most Recent
13/11/2026
Active Projects
0
See contractsOut to market now
Spend momentumRising+84%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
Programmed Facility Management Pty Ltd$55.9M
9% of spend11 contracts
Tungsten Group Pty Ltd$45M
7% of spend1 contract
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
Supply and Delivery of Two 1MVA HV/LV Kiosk Substations to Rottnest Island Authority for Kingstown and Wastewater Treatment Plant UpgradesTyree Transformers (Tyree Industries) · Infrastructure$960K09/11/2026Rooftop Solar, Battery and Controller Works at Geordie Bay, Fays Bay and Longreach Bay Visitor Accommodation — Awarded to West Australian Alternative Energy (WAAE Pty Ltd)West Australian Alternative Energy (WAAE Pty Ltd) · Energy & Environment$1.5M21/10/2026Construction of 1.5m Chain‑Link Fence around Rottnest Island Golf Course (Awarded to Programmed Facility Management Pty Ltd)Programmed Facility Management Pty Ltd · Construction$438K23/10/2026Telstra Relocation Works Awarded to Telstra Business and Enterprise by Rottnest Island AuthorityTelstra Business and Enterprise (Telstra Corporation Ltd) · Telecommunications$575K29/10/2026Prepared Road Widening Business Case 2026 for Rottnest IslandScyne Advisory Pty Ltd · Consultancy & Legal$99K02/11/2026Awarded: Pedal and Flipper LV Electrical Upgrade — Stage 2 to Rise Electrics PTY LTDRise Electrics PTY LTD · Infrastructure$58K27/10/2026Preparation of 2026 Wastewater State Funding Business Case for Rottnest IslandScyne Advisory Pty Ltd · Water & Sanitation$79K27/10/2026Refurbishment of RIA Hub Office Ablution Facilities awarded to Safeway Building and Renovations Pty LtdSafeway Building and Renovations Pty Ltd · Construction$312K13/10/2026Provided Wind Turbine Blade Condition Rectification, Flange Inspection and Yaw Testing to Rottnest Island AuthoritySECOND WIND RENEWABLES PTY LTD · Energy & Environment$66K14/10/2026Supplied Time-Lapse Site Camera Services to Rottnest Island Authority for Worker Accommodation — Sitevisuals (iViz Media Unit Trust)Sitevisuals (iViz Media Unit Trust) · Construction$76K15/09/2026
