Best Security Services in Singapore

AETOS is one of Singapore’s largest security companies. It handles manpower, technology and training under one roof. Its work includes major national events and high-security sites.

AETOS won nine Tier 1 awards at SSIA 2025. These covered commercial, events, traffic management and close protection guarding, plus consultancy and systems integration. In April 2026 it announced a leadership change.

Centurion Security says it has served clients since 1980. It focuses on licensed security officers for commercial and residential sites.

It is a good fit if you mainly need reliable guard manpower rather than a large technology package. Ask for references from sites similar to yours.

• Services: Licensed security officers, mobile patrol, security concierge, event security, VIP close protection, CCTV remote monitoring, alarm monitoring, security audits, LTA traffic marshals

HRS Security Services started in 2020. It combines guards, set procedures and technology, which it calls “Man, Method and Machine”.

Its range is wide for a younger agency. It covers remote CCTV monitoring, central alarm monitoring and traffic marshals. In July 2025 it won a Ministry of Education contract for traffic marshals.

Metropolis Security Systems says it holds a Grade A rating and a two-year licence from the police. It is also SACE-certified.

At SSIA 2025 it won four awards. These included Best Security Agencies (Residential) at Tier 1. It also won the Tripartite Alliance Award in 2025 and a Golden Circle Best Employer Award in August 2026.

Pico Guards was founded in 1995 and now has more than 30 years in the industry. It says it has over 500 trained officers and a 24/7 command centre.

Its MyPICO platform links guard operations with visitor management, video analytics and alarm monitoring. It holds ISO 9001, ISO 45001 and ISO 27001 certifications.

RAS Security was set up in 2011 and runs a 24-hour command centre. After a contract is signed, its team surveys the site to find gaps in security.

It offers virtual guarding, where officers watch your cameras remotely. This can cut costs for factories and smaller sites that do not need a full-time guard.

Rightmen Security Services has operated since 2008. It focuses on three core services: static guards, event security and mobile patrols with alarm response.

Its officers work 24/7 across residential, commercial and event sites. Its website features recent client feedback on officer conduct.

Security Enforcer has been a licensed security agency since 1999. It serves hospitals, hotels, schools, religious buildings and industrial sites.

It runs a 24-hour remote surveillance command centre. It also keeps relief officers and a response team to cover gaps in manpower.

• Services: Maritime security, land security (manned guarding, events, bodyguards, remote monitoring), digital intelligence, CCTV and access control, private investigation, K9 services

SecuriState began as a maritime security specialist. It now also provides land security, technology and investigation services from its Sin Ming office.

In August 2026 it won a security services contract from Hwa Chong Institution. It holds ISO 9001, ISO 14001 and ISO 45001 certifications.

Certis is one of Singapore’s largest security groups, with more than 60 years of history. It is the only company on this list that also supplies armed auxiliary police officers.

In 2026 it announced partnerships on security robotics and AI. It suits large estates, transport, healthcare and events that need many officers.