Robert Callahan, Jr.

As President and Chief Financial Officer, Rob Callahan provides both strategic and operational leadership for Charter. In his role as President, Rob oversees the company’s day-to-day operations, aligning our business units and support functions to deliver on Charter’s mission and long-term vision. He works closely with the executive team to set priorities, foster collaboration, and ensure that Charter continues to grow with safety, partnership, tenacity, and impact at the core of everything we do.

In his role as CFO, Rob leads Charter’s finance functions, directing our policies, procedures, reporting, and controls to guide short- and long-term performance. He works with every support function in the company to ensure seamless integration and unified objectives.

“My role at Charter is to balance strategic vision with day-to-day execution. From working with the leadership team to set direction, to supporting project managers in the field, to strengthening relationships with our external partners, my focus is on ensuring that all parts of the company are aligned and moving forward together. By building and leveraging these connections, we create the foundation for continued growth, innovation, and success in tackling the complex challenges of our industry.”

Rob comes with over 25 years of financial experience in the construction, contracting, and environmental services industries. In his previous roles, he played a significant part in achieving company business objectives while providing steady leadership. His depth of experience and versatility facilitate Charter’s continued growth as a company.

A graduate of the College of the Holy Cross, Rob is a member (and former member of the Board of Directors) of the Construction Financial Management Association of Massachusetts, a member of the Massachusetts Society of Certified Public Accountants, and a Board Member, Treasurer, and volunteer coach for youth lacrosse in his hometown of Milton, MA.