Our Team

Oliver Horn

Oliver Horn

Executive Director and Global Chief Executive Officer 

With an established track record for exponential growth in established and emerging markets, Oliver has extensive experience in building premium global consumer brands, a deep knowledge of the vitamins, minerals and supplements (VMS) category, a track record of premium brand building and a passion for creating businesses with a positive and thriving workplace culture. 

Oliver Horn’s extensive global industry experience, leadership credentials and passion for wellbeing make him the obvious choice to lead Elixinol Global.


Ron Dufficy

Ron Dufficy

Chief Financial Officer 

Ron has held senior finance roles with ASX listed companies including CSR Ltd and Aristocrat Leisure Ltd. He has significant experience in regulated markets including being based in the USA for 9 years, most recently as Chief Financial Officer for Aristocrat’s largest and most profitable division.

Teresa Cleary

General Counsel & Company Secretary 

Teresa is an experienced corporate lawyer and governance professional with expertise in managing legal and regulatory risk, corporate advisory, commercial negotiations, dispute resolution and commercial strategy. Teresa is a Fellow of the Governance Institute of Australia and is an active member of the International Bar Association and the Association of Corporate Counsel.

Tom Siciliano 

CEO Americas

Tom has an extensive background in the cannabis industry, having served as president of Nutritional High International Inc., a marijuana manufacturing and distribution company, and as president and CFO for Canna Security America where he turned the company into the second largest security company within the cannabis industry. Prior to his work in the cannabis industry, Tom held senior executive roles at start-up companies, private equity firms and public Fortune 500 companies where he successfully orchestrated several turnaround results.