About Connolly Brothers | Building Since 1880

Our Story

A Legacy of Building.
A Future of Possibility.

Connolly Brothers was founded in 1880 on a commitment to hard work, lasting relationships, and quality construction. Those values continue to guide everything we do.

Now in our 5th generation of leadership, Connolly has grown into a company known for delivering complex projects across a wide range of markets. Our clients count on us for our experience, collaborative approach, and the consistency that comes from more than a century of continuous operation.

We are proud of our history and excited about what we can build together next.

1880

Connolly Brothers is founded in Boston, Massachusetts.

1930s

The next generation continues the tradition of quality and service.

1960s

Expansion into commercial and institutional markets.

1990s

Broader services and new markets strengthen company capabilities.

2010s

Continued growth through strong client partnerships.

Today

More than 140 years of building with integrity and purpose.

What Defines Us

Relationships

We believe the best projects are built on trust. We take time to understand our clients' goals and build strong, lasting partnerships that extend well beyond project completion.

Quality

Our team takes pride in delivering projects that reflect the highest standards of construction.

Accountability

Through clear communication, disciplined project management, and dependable execution, we remain accountable to our clients throughout every phase of design and construction.

Leadership

Experienced Leadership.
Lasting Commitment.

Our leadership team brings decades of experience and a hands-on approach to every project. Together, we are committed to upholding the values that have defined Connolly Brothers for generations.