Celebrating more than 100 years in business, we are excited to share our story and hope that you will find this site both educational and informative. We want to hear from you, so feel free to contact us with any questions or comments. We have more than 80 ADCI certified commercial divers on staff throughout the US that specialize in underwater construction.

Check out Brennan news, our "Between the Trees" Blog, company videos, downloadable assets, and more. We share our insight on hot topics, highlight our specialized projects, and even share some of the secrets to our success.

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About Us

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Our mission is to create and execute innovative solutions to the world's most complex maritime, environmental, and infrastructure challenges. We are a fourth-generation, family-owned, marine construction firm that specializes in environmental remediation, dam construction, commercial dive, harbor management, and submarine cable services.

Careers

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A team that strives to continuously grow and innovate, develops new skills, challenges ourselves, and performs the highest quality work in the safest manner. We are a family-owned company that values our employees as our greatest strength, and we constantly strive to make Brennan the best place to work for each and every one.

Environmental

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Brennan offers flexible approaches and innovative solutions to successfully restore contaminated waterways and wetlands. Much of our portfolio is full of accomplishments that have surpassed remedial goals and raised industry standards. We do this by coordinating closely with all stakeholders and investing in the research and design of new and innovative tools.

Environmental Dredging

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J.F. Brennan Company offers flexible approaches and innovative solutions to successfully restore contaminated waterways and wetlands. Much of our portfolio is full of accomplishments that have surpassed remedial goals and raised industry standards. We do this by coordinating closely with all stakeholders and investing in the research and design of new and innovative tools.

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