KPG Psomas
Civil EngineeringWashington, United States11-50 Employees
KPG Psomas is a civil engineering firm with roots dating to 1990, formed by a multidisciplinary team of engineers, architects, landscape architects, and urban designers focused on community-driven public projects. The firm gained recognition in Washington State for its transportation infrastructure consulting and for developing public spaces that support the social fabric of local communities. In 2022, KPG merged with Psomas and operated under the transitional name KPG Psomas through the end of 2024. Headquartered in Seattle, Washington, the company serves clients seeking integrated civil engineering services for transportation and public realm projects. With a small- to mid-sized staff, it remains positioned in the civil engineering industry and has continued to expand its geographic footprint, most notably with a new office in Glen Ellyn, Illinois announced in 2025 to broaden its Midwest presence.