Delta Advisory Pty Limited
Delta Advisory Pty Limited is a lobbying firm on the Australian Government Register of Lobbyists, representing 38 clients including Australia Reads Ltd, Australian Association of Convenience Stores Limited (AACS) and Australian Communications Consumer Action Network Limited (ACCAN). It has 10 registered lobbyists, including 2 former public servants.
Register profile
- On the federal register since 9 Jun 2023
- ABN 70 667 068 760 · Australian Private Company · ACT 2605 · ABN active since 5 Apr 2023
- Clients 38, mostly media, arts & sport and not-for-profit & community
- Lobbyists 10, including 2 former public servants
Website: deltaadvisory.com.au
Delta Advisory is a government relations and strategic communications consultancy based in Canberra and Sydney. Founded by Sally Mackenzie, it provides advocacy strategies, strategic communications, event management and training to businesses and not-for-profit organisations navigating regulatory landscapes and policy influence. [AI-generated summary of deltaadvisory.com.au, 23 Sep 2026. May contain errors.]
Clients (38)
Lobbyists (10)
| Name | Position | Former government role | Left role |
|---|---|---|---|
| Alicia Ballesty | Senior Consultant | — | — |
| David Mitchell | Associate | — | — |
| Gabrielle Cohen | Associate | — | — |
| Jeremy Ison | Associate | — | — |
| Jessica Brownette | Senior Consultant | — | — |
| Kate Forsythe | Senior Consultant - Events & Operations | — | — |
| Mia Linden | Senior Consultant | — | — |
| Olivia Wenholz | Event Manager | Employed under the Public Service Act 1999 | 29 Jul 2026 |
| Sally Mackenzie | CEO & Founder | Employed under the Public Service Act 1999 | 28 Jan 2015 |
| William Roche | Associate | — | — |
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.