Manson Construction Co. Email Format

ConstructionWashington, United States501-1000 Employees

Manson Construction Co. operates as a heavy civil marine contractor focusing on dredging and related waterfront infrastructure projects, delivering work across harbors, coastlines, and coastal facilities. The company emphasizes safety, timely delivery, and budget discipline, guided by an Incident and Injury-Free workplace that empowers employees to halt work if safety concerns arise. Its client base includes public-sector and other organizations responsible for coastal facilities, seeking reliable execution of marine construction tasks.

Founded in 1905 and headquartered in Seattle, the firm began as a family-owned Puget Sound pile-driving business and has evolved into a 100% employee-owned company with a multi-generational workforce. It maintains a fleet of 60 specialized vessels and more than 50 barges, and has permanent facilities in Northern and Southern California, Louisiana, and Florida. In recent years, Manson has earned industry recognition for safety and partnering achievements, and in 2025 appointed James (Jim) McNally as President and CEO.

Sign up for free to view info

Company overview Employee directory