Alliance Detective & Security Service, Inc is an SEA-certified company that will keep your property and people safe with patrol services 24/7!

Guard Services

Whether you need a security guard service for a permanent or temporary situation, call Alliance Detective & Security Service, Inc.

Special Police Officers

Our goal is to protect the citizens of Boston and the New England region through our special police officer staffing services. Call us today.

Alliance Detective & Security Service, Inc is trusted by the US government for classified security jobs. We are proud of our dedicated and bias-free workplace!

Transportation Security

Alliance Detective & Security Service, Inc works with the TWIC (Transportation Worker Identification Credential) program.

About

Alliance Detective & Security Service, Inc provides security services at the federal, state, and city levels. Trust in our over 45 years of experience.