J.F. Brennan Company Inc. is a marine construction and environmental remediation company that provides high-quality services to engineering, utility, railroad, paper mill, government, municipality, and harbor entities located throughout the inland waterways of the United States. Our services include dredging, diving, dam repairs, pile driving, railroad bridge repairs, in-situ capping, and more. We employ some of the nation’s most talented marine professionals, and we pride ourselves on our commitment to safety, quality, and the environment. Founded on the principles of hard work and innovation, Brennan has provided nearly 100 years of construction excellence.