Diligence Security Expands Reach to Seattle and King County

We are proud to bring our disciplined, locally-rooted security standard to Seattle and the wider King County region — extending the same accountable, well-documented service our Pierce County Clients have relied on for years. This expansion is not simply a bigger map. It is the same standard, delivered by the same kind of trained Officer, in more of the places our Clients need us.

What the expansion means

King County's density, its port and industrial corridors, and its mix of high-rise commercial and dense residential create demanding, varied security needs. Bringing our full service line north means Seattle-area businesses now have access to a partner whose Officers are trained well beyond the state minimum and whose reporting is built to stand up to owners, insurers, and inspectors alike.

What we bring to King County

Our full service line is available across the region: high-visibility Mobile Patrols, dedicated On-site Officers, certified Emergency Fire Watch, Event security, and 24/7 Emergency Response. Coverage spans Seattle, Bellevue, Renton, Kent, and beyond.

The same standard, wherever we serve

Growth only matters if quality comes with it. Every Officer working in King County completes the same Officer Integration Program (OIP) as our founding Team, covering observation, de-escalation, use-of-force law, emergency response, and professional documentation. Clients who operate on both sides of the county line get one partner, one standard, and one point of contact for every site.

Built for the region's industrial core

Seattle's SODO district, its port terminals, and King County's warehouse corridors need security built for large perimeters and continuous activity. Our patrol and on-site programs are designed for exactly that scale, and our fire watch Team is ready when systems come offline for the maintenance and construction that never stops in a growing region.

Serving the whole Puget Sound

With King County joining Pierce at the heart of our coverage, Diligence Security now protects Clients across the breadth of the Puget Sound. If your business operates in Seattle or the wider King County area and you want a security partner held to a genuine professional standard, Reach out to our Team to arrange a site evaluation.

Talk to a local security Team

Diligence Security protects commercial, industrial, and residential properties across the Puget Sound. Explore our Security services — from Mobile Patrols to Emergency Fire Watch — or see the Areas we serve. Ready to talk? Contact us for a site evaluation.