Jf Brennan Company

J.F. Brennan Company is a fourth-generation, family-owned marine construction firm specializing in environmental remediation, dam construction, commercial diving, harbor management, and submarine cable services. Founded in 1919 by James Francis Brennan, the company operates throughout coastal and inland waterways nationwide. While headquartered in La Crosse, Wisconsin at 818 Bainbridge Street, J.F. Brennan has regional operations potentially serving South Dakota markets.

The company brings specialized expertise in complex marine and water-related infrastructure projects. J.F. Brennan's multi-generational family ownership demonstrates stability and commitment to quality work. The company serves government agencies, municipalities, and private clients with specialized marine construction and environmental services. Professional staff and specialized equipment enable completion of complex infrastructure projects.

Website: jfbrennan.com
Address: Headquarters: La Crosse, WI
Specialties: Marine Construction, Environmental Remediation, Dam Construction