Communication. Reputation. Engagement.

Communication. Reputation. Engagement.

Welcome to Six O'Clock Advisory

Six O’Clock is engaged by large, multi-national businesses, small and medium local enterprises, government agencies and departments and non-profit organisations to develop and deliver strategic communication.

The firm is led by three directors – Siobhan Koopmans, Patrick O’Beirne and Jim Stiliadis – who, combined, have decades of experience in corporate and public affairs, strategic communications, marketing communications and journalism.

Supporting the firm’s directors – and its impressive list of clients – is a group of talented and dedicated consultants. They have varied experience, including tenures in federal and state government ministerial offices and departments, and stints in corporate and consumer communications agencies.


Issues and crisis management contact point

Should your organisation require issues and/or crisis management counsel and support immediately, please call 03 9993 0448. This number will be directed to a Six O'Clock representative ready to assist with your matter. You can also email