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RI
Rottnest Island Authority
state · wa
Total Spend
$309.5M
Contracts
335
Suppliers
194
show_chart Spend Over Time
donut_small Category Mix
Recent Awards
| WA-DBCARIAQ4626 | The Rottnest Island Authority (RIA) is seeking a qualified engineering consultant to inspect the existing wind turbine, assess its current condition, identify which parts can be reused or need replacement, estimate the budget cost for the refurbishment, and prepare a Feasibility Assessment Report. | Hydro Tasmania Consulting (Hydro Tasmania) | $227,584 |
| WA-DBCARIAT0926 | The Rottnest Island Authority (RIA) manages a diverse portfolio of commercial operations on Rottnest Island, including retail outlets, food and beverage venues, and recreational activity providers. These businesses operate under leases, licences, and concession agreements issued by RIA. To support these operations, RIA maintains a portfolio of staff housing ranging from shared dormitory-style accommodation to single-family residences. These properties are leased to Island businesses under bespoke Agreements. Certain properties are also occupied by RIA personnel, Government Regional Officer Housing (GROH) tenants, and Department of Health staff. Additionally, some businesses hold long-term ground leases under which they have constructed their own accommodation. RIA has a Property Management Team to manage these properties and associated commercial agreements in-house and engages an independent contractor to deliver the following services: Routine inspections and reporting for all commercial and residential properties leased on Rottnest Island. Ad-hoc inspections and reports for lease commencements and make-good requirements. Note: Visitor accommodation properties are excluded from the requirements. RIA aims to enhance its management of: Safety and compliance across all leased properties. Property condition monitoring, ensuring timely identification of maintenance needs. To achieve these objectives, RIA requires comprehensive, accurate, and evidence-based inspection reports that detail both short-term and long-term maintenance requirements. | Property Assist (Property Assist Pty Ltd) | $848,981 |
| WA-DBCARIAQ3226 | DBCARIAQ3226 Waste Transfer Station Capping & Future Use Plan | Talis Consultants Pty Ltd (Talis Consutants Pty Ltd ATF Talis Unit Trust) | $140,443 |
| WA-DBCARIAQ3826 | The Superintendent Services are required for the Contract Administration of the Design and Construction ‘Marine Logistics Hub’ contract issued under AS4902 (as Amended). | WGAWA Pty Ltd Level 1, 66 Kings Park Road West Perth WA Australia 6005 | $245,036 |
| WA-DBCARIAT1726 | The Work Under the Contract (WUC) comprises the design and construction of Stage 1 marine-side infrastructure for the Marine Logistics Hub, located at the southern end of Thomson Bay adjacent to the existing Army Groyne. The facility is being developed to support expanded logistics operations, including barge landings, marine service access, and future infrastructure provisions. | WA Limestone Contracting Pty Ltd 401 Spearwood Ave Bibra Lake WA Australia 6163 | $26,749,849 |
| WA-DBCARIAQ4026 | The Rottnest Island Authority (RIA) is seeking quotations for the supply and construction of an extension to the existing beach access ramp at Ricey Beach, Rottnest Island. | Natural Area Management & Services (Natural Area Holdings) | $83,128 |
| WA-DBCARIAT3225 | The Rottnest Island Authority (RIA) requires the manufacturing, commissioning, and supply of one 10-metre patrol vessel, certified for 2C Survey operations, capable of operating up to thirty nautical miles offshore without restriction, along with a heavy-duty trailer . | Westerberg Marine (Westerberg Aluminium Boats Pty Ltd) | $955,143 |
| WA-DBCARIAQ4426 | Asbestos removal and rectification works at Rottnest Island Workshop | M1 Contract Services Australia Pty Ltd PO Box 178 Quinns Rocks WA Australia 6030 | $173,690 |
| WA-DBCARIAT1625 | Rottnest Island Authority (RIA) is seeking suitably qualified and experienced Contractor/s for the Worker Accommodation Modular Building. The Works encompass design, fabrication, transportation and installation of prefabricated modular accommodation units. The units consist of a mix of studio, one bedroom, two bedroom and three bedroom configurations. The Tenderer is required to refer to the Scope of Works document, technical schedules, Principals Project Requirements, documents issued for information and drawings to respond to this Request. | Calsen Pty Ltd t/as WABi construction (Calsen Pty Ltd) | $33,811,145 |
| WA-DBCARIAQ2725 | The Rottnest Island Authority is seeking offers in relation to the upgrade and replacement of the front counter and installation of new retail cabinetry. | Trayd Australia Pty Ltd 15 Hunt St Malaga WA Australia 6090 | $144,150 |
| WA-DBCARIAT4025 | The existing High Voltage (HV) network on Rottnest Island is at the end of it’s operational life and lacks the capacity to meet the island’s growing load demands. As part of the electrical infrastructure upgrades, the Rottnest Island Authority will be replacing the existing high voltage cable network with a new and upsized cable. The Rottnest Island Authority seeks the supply and delivery (F.I.S) 6000 meters of 240mm Sq copper 22KV High Voltage Cable to meet the necessary high voltage network upgrades. | Prysmian Power Cables and Systems Australia Pty Ltd 1 Heathcote Rd Liverpool NSW Australia 2170 | $1,548,158 |
| WA-DBCARIAQ3026 | The Rottnest Island Authority (RIA) is seeking offers for the provision of both the Thomson Bay and Geordie Bay Precinct Planning projects | Hames Sharley Pty Ltd (Hames Sharley) | $87,945 |
| WA-DBCARIAQ2426 | Rottnest Island Authority (RIA) seeks a suitably qualified engineering consultant to plan and undertake detailed design for phase 2 of the Rottnest Island/Wadjemup 11kV distribution network upgrade. | RASP Australia (RASP Australia Pty Ltd) | $297,389 |
| WA-DBCARIAT0326 | Rottnest Island Authority (RIA) is seeking a qualified and experienced Contractor for the execution of Engineering Services consulting for the Hybrid Electricity Generating System (HEGS) Project. | Hydro Tasmania Consulting (Hydro Tasmania) | $1,786,255 |
| WA-DBCARIAT9125 | The Maaman Wirin Bidi Project Wadjemup Aboriginal Burial Ground project is a landmark initiative in truth-telling, cultural healing, and public recognition of one of the most significant sites of Aboriginal incarceration and death in custody in Australia. Located on Wadjemup / Rottnest Island, the Wadjemup Aboriginal Burial Ground contains the unmarked graves of hundreds of Aboriginal men and boys from across Western Australia. This package of works includes the Wadjemup Aboriginal Burial Ground Memorialisation and the new Rottnest Island Golf Clubhouse Access Road. | Colgan Industries Builders (Colgan Industries Pty Ltd) | $8,608,257 |
| WA-DBCARIAQ2324 | The Rottnest Island Authority (RIA) is seeking offers for the provision of design, management (ordering), and supply of uniforms. The uniforms should be suitable for staff in administrative and operational roles on Rottnest Island and in the Fremantle office, Westen Australia as described in the Request. | Adelphi Tailoring Company (Adelphi Tailoring Company ATF for Atish Shah Family Trust & Prashit Shah Family Trust) | $307,275 |
| WA-DBCARIAQ8725 | The Rottnest Island Authority (RIA) is inviting proposals for the provision of a single occurring Fireworks Presentation to be included in the programming for the 2025 New Years Eve Family Fireworks event held on Wadjemup / Rottnest Island, on Wednesday 31 December 2025. | Cardile International Fireworks Pty Ltd 15 Bushey Road Wembley Downs Perth WA Australia 6019 | $272,433 |
| WA-DBCARIAT2526 | Rottnest Island Authority (RIA) is inviting Tenders for the execution of Detailed Design and Technical Specifications for the completion of the Water Distribution Network on Rottnest Island by qualified Civil Engineering Consultant/s. | CW Perth Pty Ltd (Cossill and Webley Consulting Engineers) | $285,824 |
| WA-DBCARIAQ2226 | Rottnest Island Authority (RIA) is seeking a suitably qualified and experienced Supplier to develop a Masterplan that provides the RIA with a planning framework to strategically guide recreation development that outlines suggested stages and priorities across the Island in a sustainable and culturally appropriate way. | Tredwell Management Services 3/217 Henley Beach Road Torrensville SA Australia 5031 | $57,728 |
| WA-DBCARIAT1226 | Rottnest Island Authority (RIA) is seeking offers for the the supply and installation of 375kW of solar panels to replace existing, rapidly degrading, solar panels at the Rottnest Island Solar Farm. | West Australian Alternative Energy (WAAE Pty Ltd) | $207,922 |
| WA-DBCARIAQ6825 | The Rottnest Island Authority (RIA) is seeking offers for the provision of the Whadjuk Noongar Heritage Monitoring Services. | Whadjuk Aboriginal Corporation 130 Royal Street East Perth WA Australia 6004 | $720,000 |
| WA-DBCARIAQ2726 | Rottnest Island Authority (RIA) seeks a suitably qualified consultant to undertake stakeholder engagement services to support the Hybrid Electricity Generation System (HEGS) upgrade project and associated statutory approvals processes. | Purple Australia (Purple Communications Australia Pty Ltd) | $136,730 |
| WA-RQ322026 | Supply and Installation of synthetic turf at the Mt Herschel Mobile Workers Camp. | WA TURF GURUS (The Trustee for Hari Family Trust) | $49,104 |
| WA-DBCARIAQ0726 | The Rottnest Island Authority (RIA) is seeking offers for the provision of a suitably qualified and National Association of Testing Authorities (NATA) accredited laboratory service provider to undertake analysis of samples. | MPL Laboratories (Envirolab Services WA) | $168,182 |
| WA-DBCARIAQ2626 | The Rottnest Island Authority (RIA) is seeking offers for the provision of ICT Strategic, Technical and Project Management Services. Visitor Services leads RIA’s commercial operations across Rottnest Island, including accommodation services as Stay Rottnest, bike and equipment rentals through Pedal & Flipper Hire, and retail within the island’s visitor centre. This contract is for the professional services to support delivery, governance, and technical outcomes for a range of Visitor Services projects. | Oxycon Pty Ltd 9 Jubilee Crescent City Beach WA Australia 6015 | $157,300 |
Spend by Category
Incumbent Suppliers
Programmed Facility Management Pty Ltd Level 2 47 Burswood Road Burswood WA Australia 6100
$50.3M
Calsen Pty Ltd t/as WABi construction (Calsen Pty Ltd)
$33.8M
Guidera O'Connor Pty Ltd 9 Tidal Way Bibra Lake WA Australia 6163
$28.7M
WA Limestone Contracting Pty Ltd 401 Spearwood Ave Bibra Lake WA Australia 6163
$26.7M
Colgan Industries Builders (Colgan Industries Pty Ltd)
$15.0M
Geomarine Pty Ltd 118 Motivation Drive Wangara WA Australia 6065
$10.3M
Pelagic Marine Services Pty Ltd 16 Mews Road Fremantle WA Australia 6160
$10.0M
DM Civil (D.M Drainage & Constructions Pty Ltd)
$9.3M
Caltex Australia Petroleum Pty Ltd 85 Bracks Street North Fremantle Perth WA Australia 6159
$9.0M
Keslake Group 3 Saville Place Carlisle WA Australia 6101
$7.9M
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