Our Leaders

Being relied upon 24/7 for trusted, compliant and reputable services to keep people and places safe, requires the leadership of practical experts, that harness decades of experience. Our leadership team partners with you to provide forward thinking, reliable solutions that achieve your business objectives.

We're the best fit for you


We are reliable and trusted, intentionally compliant in and transparent about everything we do. We only provide directly employed people (never sub-contracted).


We are relied upon to be there 24/7, and we are.  We respond and react in real time with informed local support to provide immediate solutions.


We work in partnership with you to provide a seamlessly integrated service that adapts to you and realises your objectives.


We are smart and nimble. We are led by practical experts harnessing decades of experience and study to innovate and provide intelligent solutions driven services.

Meet our leadership team

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 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.

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.

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.

Our latest
news & insights.

The world is dynamic. We are always responding to change. We are researching and learning. We are innovating for the future. We are growing. We have people to recognise and achievements to celebrate. You will find our latest news and insights here.

Ready to talk? Contact us today

Contact Us