Brennan Company, Inc. (Brennan) is a 100-year-old, family-owned company that specializes in water-based environmental remediation and marine construction headquartered in La Crosse, WI that offers our employees growth, challenging work, empowerment, and meaningful work. As an intern, you'll be working closely with our marine professionals on various job sites, gaining hands-on experience in marine construction, underwater construction, or environmental remediation and restoration.