Diligence Security Officer standing guard beside a marked patrol vehicle

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Diligence Security Company News & Updates

Guidance from our Officers and Supervisors on protecting people and property across the Puget Sound.

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An aerial view over the SODO industrial district in Seattle showing Port of Seattle terminals within the Diligence Security patrol area

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Diligence Security Expands Reach to Seattle and King County

Diligence Security has expanded its professional patrol, on-site, and fire watch services throughout Seattle and King County.

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