Established on 18 March 1997, the Association of Certified Security Agencies (ACSA) represents approximately 130 members, including private investigation firms, training organisations, security systems providers, and, most importantly, security agencies.

ACSA serves as the unified voice of Singapore’s security agencies, engaging with government bodies, industry associations, partner organisations, and key stakeholders to safeguard and advance their collective interests. Through these partnerships, ACSA is committed to strengthening the nation’s security industry and providing its members with a strong platform to address challenges, share best practices, and drive industry growth.