AETOS Security Management, now known as AETOS Holdings Pte Ltd, is a Singaporean company providing security services to a wide range of clientele. The company is officially an auxiliary police force permitted to be armed under regulations from the Police Force Act 2004.

Auxiliary police, also called volunteer police, reserve police, assistant police, civil guards, or special police, are usually the part-time reserves of a regular police force. They may be unpaid volunteers or paid members of the police service with which they are affiliated.