About DELTA Advisory
ABOUT US
At Delta Advisory, we don’t just open doors—we shape outcomes.
As a bi-partisan government relations and public policy consultancy, we equip businesses and non-profits with the strategies and support needed to navigate complex regulatory landscapes, influence policy, and build powerful stakeholder connections.
Our mission is simple: to help you achieve your goals, safeguard your reputation, and minimise risk. Unlike other firms, we go beyond facilitation—we deliver results.
OUR TEAM
SALLY MACKENZIE - FOUNDER & MANAGING DIRECTOR
Sally has worked in the private and public sectors domestically and across Asia-Pacific. Before starting Delta Advisory, Sally was General Manager, Government Relations, Industry and Regulatory Affairs for Australia Post and Government Relations Principal at Telstra. She joined Telstra after nearly a decade in the financial services sector working in policy and government relations.
Sally has worked internationally as an advisor to the Thai, Philippines and Mongolian governments. She is an experienced diplomat, having served in the Department of Foreign Affairs and Trade and as a diplomat in Indonesia and Solomon Islands.
She is a non-executive director for Regional Australia Bank and Vice President of the Australian Professional Government Relations Association, and has previously served as Deputy Chair of both the Domestic Violence Crisis Service and Canberra Rape Crisis Centre. She is a mentor with Mentor Walks.
Sally holds Masters in Commerce and Bachelor of Arts, majoring in political science and economics.
MIA LINDEN - SENIOR CONSULTANT
Mia is a seasoned government relations professional with expertise across corporate, not-for-profit, and diplomatic sectors. She has a deep understanding of political and regulatory processes, allowing her to navigate complex environments and shape policy outcomes for a diverse range of clients.
With a strong foundation in strategic advocacy, Mia has worked extensively with ASX100 companies, private family owned firms, industry bodies, and international organisations to align business objectives with government priorities. She combines analytical insight with practical experience to engage decision-makers, influence policy debates, and manage regulatory challenges.
Mia’s background in diplomacy and international affairs has sharpened her ability to operate in high-stakes, cross-cultural environments. She is skilled at building trusted relationships, crafting compelling narratives, and facilitating meaningful dialogue between business, government, and the broader community.
Mia has a Bachelor of International Security Studies from the Australian National University, where she specialised in Arabic and Global Security.
Passionate about political strategy and effective communication, Mia brings a solution-focused approach to government relations, delivering results for clients.
About DELTA Advisory
ADVOCACY
ADVOCACY
ADVOCACY
Gain the upper hand in the political arena with our tailored government relations and advocacy strategies. We possess an in-depth understanding of political dynamics, enabling us to craft precise and impactful strategies for our clients. Partner with us to unlock your strategic advantage and develop a strategy that align seamlessly with your objectives and maximises your influence.
EVENTS
ADVOCACY
ADVOCACY
We offer comprehensive event management services tailored to the needs of government relations initiatives. Our team specialises in planning and executing high-impact events that engage key stakeholders, from policy makers to industry leaders. We handle everything from strategy and logistics to communications and follow-up, ensuring each
We offer comprehensive event management services tailored to the needs of government relations initiatives. Our team specialises in planning and executing high-impact events that engage key stakeholders, from policy makers to industry leaders. We handle everything from strategy and logistics to communications and follow-up, ensuring each event fosters meaningful dialogue and achieves your advocacy goals.
TRAINING
ADVOCACY
TRAINING
Learn the importance of advocacy and tools of the trade. We offer specialised training to equip organisations, executives, teams and individuals with the skills and confidence to engage effectively with government. Our training programs provide practical insights, real-world strategies, and hands-on experience to help you navigate the pol
Learn the importance of advocacy and tools of the trade. We offer specialised training to equip organisations, executives, teams and individuals with the skills and confidence to engage effectively with government. Our training programs provide practical insights, real-world strategies, and hands-on experience to help you navigate the political landscape and advocate for your cause or business interests.
