Australia · Commonwealth contract register · Supplier record

REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED

Line: Environmental management (77100000)Register loaded to September 2026Compiled 6 October 2026

REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED — Australia · Commonwealth contract register · Supplier record: 10 contracts, all years (A$49,170,697 · May 2022 – Sep 2025); A$43.2M since January 2024 (7 contracts · 2 agencies); 15th rank in the line (of 627 suppliers · 1.21%); 22 agencies never served (A$602M on the line without REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED).

Assay record ASY-AU-0V0ZB6Q1AI · Cite as: Assay Systems, “REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED in the AusTender register”, https://assay-systems.com/register/au/reef-catchments-mackay-whitsunday-isaac-limited/

10
contracts, all years
A$49,170,697 · May 2022 – Sep 2025
A$43.2M
since January 2024
7 contracts · 2 agencies
15th
rank in the line
of 627 suppliers · 1.21%
22
agencies never served
A$602M on the line without REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED

Own record by year

2022 onward
A$329K
A$5.6M
A$35.0M
A$8.2M
20222023202420252026

Who buys from REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED

since January 2024
2agencies
A$43.2Mpaid
95.8%top buyer
Department of Climate Change, Energy, the Environment and Water95.8%
A$41,382,898
Department of Agriculture, Fisheries and Forestry4.2%
A$1,814,881

The line

since January 2024
A$3.6Bline value
1,497contracts
24agencies
627suppliers
46.7%held by top ten

Environmental management (77100000)

A$1.1B
A$1.4B
A$1.0B
202420252026Jan–Sep
15thof 627 suppliers
A$43,197,779REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED in the line
1.21%share of the line
1.5%of A$2,850,742,984 spent by Department of Climate Change, Energy, the Environment and Water
1.4%of A$126,298,341 spent by Department of Agriculture, Fisheries and Forestry

Agencies that buy the line and never bought from REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED

22agencies
266contracts
A$601,706,435since January 2024
Department of Defence138 contracts
A$378,039,806
Great Barrier Reef Marine Park Authority28 contracts
A$70,484,617
Department of Foreign Affairs and Trade - Australian Aid Program5 contracts
A$65,179,042
Department of Industry, Science and Resources11 contracts
A$44,361,071
Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts18 contracts
A$12,710,125
CSIRO6 contracts
A$9,161,409
Director of National Parks6 contracts
A$6,188,568
Bureau of Meteorology17 contracts
A$5,120,746
Sydney Harbour Federation Trust1 contract
A$3,080,207
Murray-Darling Basin Authority4 contracts
A$3,070,242
Department of Finance5 contracts
A$1,289,769
Department of Infrastructure, Transport, Regional Development, Communications and the Arts7 contracts
A$909,110
Department of Veterans' Affairs1 contract
A$751,124
Australian Submarine Agency3 contracts
A$307,280
National Environmental Protection Agency1 contract
A$299,762
Department of the Prime Minister and Cabinet5 contracts
A$234,778
Royal Australian Mint2 contracts
A$156,181
Attorney-General's Department2 contracts
A$145,382
Australian Signals Directorate2 contracts
A$143,000
Department of Parliamentary Services2 contracts
A$29,161
Department of Foreign Affairs and Trade1 contract
A$27,930
Department of Home Affairs1 contract
A$17,127

How the line is bought

by value, since 2024
6%limited tender
0of these to REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED
Open tender1,245 contracts
A$3,348,891,175 · 93.6%
Limited tender, no open approach to market252 contracts
A$229,856,585 · 6.4%

Contracts reaching their end dates

Oct 2026 – October 2027
240contracts
A$1,148,994,718end by October 2027
60end in June 2027 · A$112M
104in agencies never served · A$309M
A$227M
A$549M
A$109M
A$18.5M
A$19.5M
A$22.2M
A$17.7M
A$1.2M
A$112M
A$61.3M
A$11.2M
Oct 2658 contractsNov 2613 contractsDec 2630 contractsJan 2722 contractsFeb 2723 contractsMar 2714 contractsApr 277 contractsMay 274 contractsJun 2760 contractsJul 274 contractsAug 275 contracts

Suppliers next to it in the line

since January 2024
BURNETT MARY REGIONAL GROUP FOR NATURAL RESOURCE MANAGEMENT LTD9 contracts · 2 agencies
A$49,807,678
FNQ NRM LTD7 contracts · 2 agencies
A$49,314,815
REEF CATCHMENTS MACKAY WHITSUNDAY ISAAC LIMITED
A$43,197,779
ENVIROPACIFIC SERVICES8 contracts · 3 agencies
A$39,269,026

All 627 suppliers in the line

The extract

Every buying office, every contract holder, value, number and end date behind the figures above.

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Source: AusTender Contract Notice Export, Department of Finance, Commonwealth of Australia, via data.gov.au, licensed under Creative Commons Attribution 3.0 Australia; accessed 25 September 2026.Assay Systems has changed the data.