Australia · Commonwealth contract register · Supplier record

O'Connor Marsden & Associates Pty Ltd

Line: Management advisory services (80100000)Register loaded to September 2026Compiled 6 October 2026

O'Connor Marsden & Associates Pty Ltd — Australia · Commonwealth contract register · Supplier record: 167 contracts, all years (A$12,813,688 · Sep 2021 – Sep 2026); A$5.6M since January 2024 (90 contracts · 30 agencies); 77th rank in the line (of 1,314 suppliers · 0.13%); 75 agencies never served (A$1.8B on the line without O'Connor Marsden & Associates Pty Ltd).

Assay record ASY-AU-1VJG1AT0GX · Cite as: Assay Systems, “O'Connor Marsden & Associates Pty Ltd in the AusTender register”, https://assay-systems.com/register/au/o-connor-marsden-associates-pty-ltd/

167
contracts, all years
A$12,813,688 · Sep 2021 – Sep 2026
A$5.6M
since January 2024
90 contracts · 30 agencies
77th
rank in the line
of 1,314 suppliers · 0.13%
75
agencies never served
A$1.8B on the line without O'Connor Marsden & Associates Pty Ltd

Own record by year

2021 onward
A$1.9M
A$3.3M
A$2.0M
A$2.5M
A$1.9M
A$1.3M
202120222023202420252026

Who buys from O'Connor Marsden & Associates Pty Ltd

since January 2024
30agencies
A$5.6Mpaid
26.9%top buyer
Department of Defence26.9%
A$1,512,750
Department of Health, Disability and Ageing12.7%
A$716,214
Department of Social Services9.7%
A$547,432
Department of Climate Change, Energy, the Environment and Water5.4%
A$301,359
Department of Health and Aged Care5.3%
A$296,443
Services Australia4.7%
A$265,323
Australian Securities and Investments Commission3.7%
A$209,160
Department of Industry, Science and Resources3.3%
A$183,832
Department of the Treasury2.6%
A$144,072
Department of Veterans' Affairs2.3%
A$129,000
Department of Infrastructure, Transport, Regional Development, Communications and the Arts2.1%
A$120,577
National Emergency Management Agency2.1%
A$120,000
Australian Competition and Consumer Commission2.1%
A$119,350
Department of Education1.8%
A$100,000
Australian Digital Health Agency1.7%
A$98,006
High Speed Rail Authority1.7%
A$97,201
Department of Parliamentary Services1.6%
A$90,000
Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts1.5%
A$84,839
Office of the Fair Work Ombudsman1.4%
A$79,200
Australian Skills Quality Authority1.3%
A$72,732
Defence and Veterans' Service Commission1.1%
A$64,600
National Indigenous Australians Agency1.1%
A$60,588
Australian Taxation Office1.0%
A$55,913
Administrative Review Tribunal0.9%
A$50,487
Attorney-General's Department0.4%
A$21,936
IP Australia0.4%
A$20,000
Australian Communications and Media Authority0.3%
A$19,600
Department of Home Affairs0.3%
A$17,330
Australian Public Service Commission0.3%
A$14,790
Digital Transformation Agency0.2%
A$10,946

Before 2024 only: Australian Financial Security Authority, Australian National Audit Office, Clean Energy Regulator, Department of Agriculture, Fisheries and Forestry, Department of Finance, Fair Work Commission, Federal Court of Australia, Great Barrier Reef Marine Park Authority, NDIS Quality and Safeguards Commission, National Archives of Australia.

The line

since January 2024
A$3.0Bline value
5,253contracts
115agencies
1,314suppliers
62.2%held by top ten

Management advisory services (80100000)

A$1.1B
A$1.1B
A$786M
202420252026Jan–Sep
77thof 1,314 suppliers
A$3,984,009O'Connor Marsden & Associates Pty Ltd in the line
0.13%share of the line
0.5%of A$117,179,231 spent by Department of Defence
0.4%of A$196,858,637 spent by Department of Health, Disability and Ageing
2.8%of A$19,688,240 spent by Department of Social Services

Agencies that buy the line and never bought from O'Connor Marsden & Associates Pty Ltd

75agencies
1,606contracts
A$1,815,180,172since January 2024
Department of Foreign Affairs and Trade - Australian Aid Program491 contracts
A$1,342,991,898
Department of Foreign Affairs and Trade117 contracts
A$211,142,756
Independent Health and Aged Care Pricing Authority23 contracts
A$30,983,955
Aged Care Quality and Safety Commission72 contracts
A$25,124,604
Australian Submarine Agency24 contracts
A$23,210,592
Department of Employment and Workplace Relations95 contracts
A$21,735,750
Austrade153 contracts
A$20,816,553
Australian Federal Police19 contracts
A$16,602,922
Comcare5 contracts
A$10,730,666
Australian Centre for Disease Control17 contracts
A$9,321,886
Geoscience Australia33 contracts
A$9,204,097
Bureau of Meteorology32 contracts
A$7,865,818
Australian Electoral Commission37 contracts
A$7,337,525
Export Finance Australia2 contracts
A$6,900,000
Safe Work Australia23 contracts
A$6,296,189
Australian Transaction Reports and Analysis Centre24 contracts
A$5,086,882
Department of the Prime Minister and Cabinet31 contracts
A$4,500,852
Australian Bureau of Statistics26 contracts
A$4,408,747
Net Zero Economy Authority7 contracts
A$3,351,397
Australian Institute of Family Studies12 contracts
A$3,043,665
CSIRO5 contracts
A$2,830,672
Australian Prudential Regulation Authority26 contracts
A$2,740,320
Reserve Bank of Australia4 contracts
A$2,314,449
National Environmental Protection Agency7 contracts
A$2,152,605
Office of the eSafety Commissioner9 contracts
A$2,105,240
Royal Australian Mint16 contracts
A$2,057,244
Australian Energy Regulator28 contracts
A$2,053,196
Murray-Darling Basin Authority3 contracts
A$1,745,906
National Blood Authority15 contracts
A$1,728,907
Australian Fisheries Management Authority13 contracts
A$1,617,915
Australian Signals Directorate16 contracts
A$1,602,608
Future Fund Management Agency10 contracts
A$1,525,764
Australian Criminal Intelligence Commission10 contracts
A$1,439,902
Australian Research Council14 contracts
A$1,319,653
Workplace Gender Equality Agency10 contracts
A$1,312,384
Australian Centre for International Agricultural Research11 contracts
A$1,167,017
Director of National Parks2 contracts
A$1,139,521
Independent Parliamentary Expenses Authority11 contracts
A$911,861
Department of the House of Representatives6 contracts
A$901,945
Australian Naval Nuclear Power Safety Regulator6 contracts
A$871,750
Office of the Australian Information Commissioner11 contracts
A$868,301
Australian Institute of Marine Science2 contracts
A$819,500
Sport Integrity Australia12 contracts
A$784,739
Cancer Australia7 contracts
A$747,388
Asbestos and Silica Safety and Eradication Agency8 contracts
A$737,766
Office of the Director of Public Prosecutions10 contracts
A$733,678
National Gallery of Australia1 contract
A$721,875
Australian Transport Safety Bureau7 contracts
A$718,512
Climate Change Authority6 contracts
A$640,467
Office of Parliamentary Counsel8 contracts
A$480,242
Australian Institute of Health and Welfare1 contract
A$459,593
Commonwealth Grants Commission5 contracts
A$300,130
Parliamentary Workplace Support Service6 contracts
A$295,718
Australian Radiation Protection and Nuclear Safety Agency4 contracts
A$287,890
Tertiary Education Quality and Standards Agency7 contracts
A$282,348
Office of the Official Secretary to the Governor-General6 contracts
A$237,919
Parliamentary Budget Office5 contracts
A$234,502
Administrative Appeals Tribunal3 contracts
A$211,852
National Capital Authority3 contracts
A$185,990
National Mental Health Commission2 contracts
A$142,720
Office of the Inspector-General of Intelligence and Security2 contracts
A$136,400
Australian Institute of Criminology2 contracts
A$132,330
Organ and Tissue Authority1 contract
A$109,862
Domestic, Family and Sexual Violence Commission2 contracts
A$109,275
National Health Funding Body3 contracts
A$96,926
Office of the Special Investigator2 contracts
A$96,790
Office of the Inspector-General of Aged Care4 contracts
A$86,555
National Competition Council1 contract
A$64,240
Office of the Commonwealth Ombudsman3 contracts
A$55,175
Professional Services Review2 contracts
A$54,410
Productivity Commission1 contract
A$49,000
Commonwealth Superannuation Corporation1 contract
A$33,000
Seacare1 contract
A$29,700
National Anti-Corruption Commission1 contract
A$22,880
Department of the Senate1 contract
A$16,885

How the line is bought

by value, since 2024
10%limited tender
0of these to O'Connor Marsden & Associates Pty Ltd
Open tender3,716 contracts
A$2,682,963,937 · 89.8%
Limited tender, no open approach to market1,537 contracts
A$303,139,545 · 10.2%

Contracts reaching their end dates

Oct 2026 – October 2027
958contracts
A$1,026,338,873end by October 2027
291end in June 2027 · A$555M
298in agencies never served · A$660M
A$20.6M
A$56.8M
A$211M
A$23.3M
A$64.2M
A$23.7M
A$9.3M
A$18.4M
A$555M
A$33.9M
A$9.8M
A$654K
Oct 2691 contractsNov 2683 contractsDec 26199 contractsJan 2749 contractsFeb 2765 contractsMar 2764 contractsApr 2726 contractsMay 2729 contractsJun 27291 contractsJul 2733 contractsAug 2727 contractsSep 271 contract

Suppliers next to it in the line

since January 2024
PROTIVITI PTY LIMITED16 contracts · 15 agencies
A$4,078,845
O'Connor Marsden & Associates Pty Ltd
A$3,984,009
WSP AUSTRALIA PTY LIMITED8 contracts · 2 agencies
A$3,970,921
DANDOLOPARTNERS DANDOLOPARTNERS PTY LTD13 contracts · 5 agencies
A$3,948,326

All 1,314 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.