Brennan is a Construction, Environmental Services, and Harbor Management company focused on providing quality services to both public and private owners of civil infrastructure. Our focus on safety and quality is unmatched in our industries, and our ability to innovate has enabled us to exceed expectations and routinely deliver greater value to our clients.

For more than 100 years Brennan has worked closely with clients and engineering firms through high levels of integrity and professionalism. Our approach results in an extraordinary amount of transparency throughout our projects and operations and leads to a collaborative environment for all stakeholders. At Brennan, we understand that success is not only measured by the outcome but also through the process by which the outcome is achieved.