Our Leaders

A highly experienced and qualified management team
Travis Semmens

Travis Semmens

Prior to being appointed  Managing Director, Travis  held the position of  General Manager for 10 years, having worked his way through the ACES business from guard operations. Travis remains actively engaged with ACES clients.

Andrew Tatrai

Andrew Tatrai

Andrew Tatrai is Non-Executive Director (Advisory Board Member) of Australian Concert and Entertainment Security. He is the founding Director and Principal and has a diverse range of qualifications including more than thirty years experience in the entertainment, event and venue management industry.

Sonja Semmens

Sonja Semmens

Sonja Semmens, Events Director, has held this position since 2000, a culmination of having worked her way through event guarding operations. Sonja is an internationally recognised Event Security Logistics and Operational Planning Specialist, and Close Personal Protection Manager.

Leni Ison

Leni Ison

Leni Ison, Executive Manager Business, has worked in business contract and compliance management since 2001, after an earlier career in luxury sports marketing and event management.  Leni is passionate about industry quality, compliance and reputation and she drives innovative systems to continuously improve our services for and on behalf of our clients.

Z Diezal

Z Diezal

Z. Diezal has recently returned to ACES and has been appointed Training Services Manager of Affirm Training RTO. Z previously worked as a Ship Security Officer managing all security operations which also involved training security members in risk management, security and defensive techniques, crime scene investigation and firefighting at sea.

Karen Hewitt

Karen Hewitt

Karen, ACES Senior Human Resource Manager has extensive management experience derived from a diverse administration background working within the security industry for twenty six years. Karen maintains and enhances Human Resources by implementing and evaluating employee relations and managing Human Resources polices, procedures, programs and practices.

 

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