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Sentry Security International (SSI)

Founded on July 13, 1999 and has a premium Client base has a premium client base that extends throughout the Washington Metropolitan are. SSI has positioned itself as one of the largest security companies in the United States.

Security Solution

A security solution which encompasses your entire environment is essential to your business success. SSI consults, implements, and supports you on the most-effective, innovative strategies in infrastructure security.


To provide superior Protection and Investigation services to our clients – while contributing to the growth and development of our employees and the communities in which we do business.