J.F. Brennan Company, Inc.

J.F. Brennan Company, Inc.

Updated August 2022.


Employees say this is a great place to work

Company Overview

About The Company

J.F. Brennan Company, Inc. (Brennan) is a fourth-generation, family-owned, marine construction firm that specializes in environmental remediation, dam construction, commercial dive, harbor management, and submarine cable services. Working closely with public and private owners of water-based infrastructure since 1919, Brennan operates throughout coastal and inland waterways nationwide, maintaining a large fleet of marine equipment backed by experienced maritime professionals. Why Brennan? Safety, quality, and environmental management are long-standing principles within the company, being ISO certified in all three values proves that Brennan objectively maintains the highest of international standards.


588 U.S.-based Employees



Employee Demographics


Company Culture at J.F. Brennan Company, Inc.

The employee experience below at J.F. Brennan Company, Inc., compared to a typical company.

Learn More

88% of employees at J.F. Brennan Company, Inc. say it is a great place to work compared to 57% of employees at a typical U.S.-based company.

  • J.F. Brennan Company, Inc.
  • 88%
  • Typical Company
  • 57%
Our customers would rate the service we deliver as "excellent."
I'm proud to tell others I work here.
When I look at what we accomplish, I feel a sense of pride.
Our executives fully embody the best characteristics of our company.
I feel good about the ways we contribute to the community.

Why Work at J.F. Brennan Company, Inc.?

See what employees say about what makes J.F. Brennan Company, Inc. a great workplace. These words are drawn from employee comments on the Trust Index™ survey.

Best Workplaces Lists

Great Place To Work® is proud to recognize J.F. Brennan Company, Inc.

Don't See Your Company Listed?

Nominate your company today to join Certification Nation