Terrier Security Services (TSS)

Specialized ManTech Security Solutions, delivering first-rate security services.

Terrier Electronic Security Solutions (TESS)

Future-ready integrated security solution, providing unique security services.

Terrier Business Solutions (TBS)

Comprehensive dynamic business management solutions that place its clients first.

Welcome to Terrier Security Services

Established in 1989, Terrier Security Services has carved a niche for itself in the Integrated Security space with unparalleled domain experience and expertise. The name has over three decades, become synonymous with quality ManTech Security Solutions, serving clients across diverse sectors.

Case Studies



With technology at its core, we aim to provide reliable and proactive security solutions towards creating a safer environment.

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    We proactively help you secure your people, places, and assets.