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Industries Served

inset pic3 concrete constructionJ.F. Brennan Company Inc. and Brennan Marine Inc. have served many industries over the years. Our services are not limited to navigable waterways, but are performed on any type and size river, stream, and lake. From bridge construction to dam repair to river transportation, Brennan can provide quality service both above and below the waterline. We are a complete marine contractor and bring specialty equipment, a knowledgeable staff, and innovative thinking to every project.

  • Barge Transportation

    • Brennan has a reputation for providing high-quality service on the inland waterways. We can respond to both transportation and construction needs. – Learn More

  • inset pic2 underwater inspectionCranberry Growers

    • J.F. Brennan Company has been providing quality service to cranberry growers for close to 20 years. We specialize in water control structures and bog restoration. – Learn More

  • Engineering and Consulting Firms

    • J.F. Brennan Company has the ability to provide design assistance for several types of marine-based environmental remediation and construction projects. – Learn More

  • Government and Municipalities

    • J.F. Brennan Company provides several services to government entities in many different market sectors. We work with numerous governmental entities on many different levels. – Learn More

  • Pulp and Paper Mill

    • Brennan provides high-quality inspection and construction services to several paper mills located throughout the Midwest. We specialize in hydropower generation structures, embankment stabilization, and pile-driven structures. – Learn More

  • Railroads

    • J.F. Brennan Company has worked with every Class 1 and several short line railroads. We specialize in work on water-based structures such as bridges and embankments. This work includes dive services, scour and erosion repairs, concrete repairs, timber bridge repairs, and salvage. – Learn More

  • Utility Companies

    • Brennan provides several marine-based services to power generation facilities. J.F. Brennan Company specializes in hydropower generation structures, embankment stabilization, and pile driven structures. Brennan Marine provides high-quality harbor management services. Our commitment to safety, quality, and the environment has allowed us to continuously deliver value to power generation companies throughout the Midwest. – Learn More