Siena Construction is a full service construction manager and general contractor based in Cambridge, Massachusetts. Since our founding in 1991, we build in Metro Boston, Cambridge, and throughout New England. We specialize in building for the life sciences, higher education, commercial, retail, and non-profit sectors.

Siena has established, nurtured, and grown relationships with key contractors, architects, engineers and clients due to our unmatched customer service, unwavering eye for detail, and an obsession for doing things properly.

Our full-service construction management firm has helped create vibrant, dynamic spaces bursting with character and culture across metro Boston and throughout New England. Our work has a proven track record of success that is linked to architectural icons and historic town squares that bring people together, state-of-the-art life science and medical institutions that enrich our health, and boundary-breaking work spaces that inspire creative talent.


Who We Are

Meet Our Talented Team

Asana Partners | Northpond Ventures

CRISPR Therapeutics

Asana Partners

Indigo Ag

Risk Strategies

Simply Barre Fenway

Brickyard VFX

First Republic Bank

GlaxoSmithKline Development Offices

Millennium Pharmaceuticals