management team
our driving force
Spartan Security Service is managed by a team of military-trained executives and commercial security consultants with a wealth of experience in various operations and security fields. Our management leads the company’s governance framework, setting strategic targets, and monitoring progress to ensure we operate effectively.
Mr.Choo Tang Han, General Manager
He has over 21 years of senior security management experience, having served in key security departments within the Singapore government. He is highly skilled in threat analysis, physical security management, and emergency response coordination. His expertise spans national security, counter-terrorism, critical infrastructure protection, and team leadership. Additionally, he holds multiple professional certifications, including counter terrorism operations and red team training.


Seth Tren (Johnnie), Operations Director
Johnnie is a seasoned leader in the security industry, accumulated over 17 years of professional security services and marketing experience in the United States and local firms. He is a Cambodian national with a security and risk management diploma from the Australian Institute of Public Safety. Constantly seeking personal and professional development, he has attended courses offered by the Leadership and Development Centre (LDC) in Cambodia.