Principle Advisory Pty Ltd

Principle Advisory Pty Ltd is a lobbying firm on the Australian Government Register of Lobbyists, representing 27 clients including AbbVie, Copenhagen Infrastructure Partners and DrinkWise Australia Ltd. It has 4 registered lobbyists, including 3 former ministerial or parliamentary staff and 1 former public servant.

Register profile

On the federal register since 6 Oct 2021
ABN 29 657 059 848 · Australian Private Company · SA 5061 · ABN active since 4 Feb 2022
Clients 27, mostly mining & resources and health & aged care
Lobbyists 4, including 3 former ministerial or parliamentary staff and 1 former public servant

Website: principleadvisory.com.au

Principle Advisory is a government relations and corporate affairs firm based in Barton, ACT. It advises Australian companies on government relations, political strategy, media and communications, and M&A transactions. Managing Partner Ryan Liddell and Directors Guy Ragen and Alex White lead the firm, which works with clients across health, aged care, and other sectors. [AI-generated summary of principleadvisory.com.au, 23 Sep 2026. May contain errors.]

Clients (27)

Client	ABN
AbbVie	ABN 48 156 384 262
Copenhagen Infrastructure Partners
DrinkWise Australia Ltd	ABN 46 112 783 114
ENDEAVOUR GROUP LIMITED	ABN 77 159 767 843
Energy Resources of Australia Ltd	ABN 71 008 550 865
Humanihut Pty Ltd	ABN 71 163 752 994
IVF Medical Directors Group Ltd	ABN 52 674 751 529
LMS ENERGY PTY LTD	ABN 39 059 428 474
Macquarie Group Limited	ABN 94 122 169 279
Meta	ABN 83 134 012 543
MYELOID THERAPEUTICS PTY LTD	ABN 40 650 134 295
nib	ABN 83 000 124 381
Novo Nordisk Pharmaceuticals Pty Ltd Also represented by Nexus APAC Pty Ltd	ABN 40 002 879 996
NuFarm Ltd	ABN 37 091 323 312
Nyrstar Also represented by Antinomies Trust	ABN 46 124 535 468
Private Healthcare Australia	ABN 35 008 621 994
Salta Properties	ABN 84 580 483 559
Sembcorp Industries
SGH LIMITED Also represented by EJF Advisory Pty Ltd	ABN 46 142 003 469
Silver Mines Limited	ABN 45 107 452 942
Silverchain	ABN 77 119 417 018
SpaceX
The Alannah and Madeline Foundation (pro bono)	ABN 96 514 115 810
The Fertility Society of Australia and New Zealand Also represented by London Agency Pty Ltd	ABN 27 006 214 115
The Lottery Corporation	ABN 21 081 925 706
Trafigura
VINARCHY AUSTRALIA LIMITED	ABN 86 008 273 907

Lobbyists (4)

Name	Position	Former government role	Left role
Alex White	Senior Adviser	Employed or engaged by a Minister or a Parliamentary Secretary under the Members of Parliament (Staff) Act 1984	8 Jul 2019
Cody Nugara	Adviser	Employed under the Public Service Act 1999	3 Jul 2024
Guy Ragen	Director	Employed or engaged by a Minister or a Parliamentary Secretary under the Members of Parliament (Staff) Act 1984	3 Sep 2013
Ryan Liddell	Partner	Employed or engaged by a Minister or a Parliamentary Secretary under the Members of Parliament (Staff) Act 1984	3 Aug 2012

Source: Australian Government Register of Lobbyists, with website matching and summaries added by Political Gadgets. Last updated 23 Sep 2026. Offered 'as is' under CC BY-NC 4.0.