Siena Construction is a full-service construction manager and general contractor based in Cambridge, Massachusetts, and working in Metro-Boston, Cambridge, and throughout New England. Founded in 1991, we’ve become one of the more respected construction managers in New England.

Our clients work with Siena to assist with projects that require precise planning and scheduling, have exacting specifications, or present challenges that need the service of an agile and attentive general contractor.

Siena works in the Life Sciences, GMP Manufacturing, Commercial, Educational, Historical, Healthcare, and Fine Arts communities. We provide a full range of service from ground-up construction, interior renovations, all the way through to simple maintenance requirements.

Our goal is to exceed our client’s expectations. We achieve this through rigorous quality control and scheduling, by maintaining project budgets from beginning to project completion, and by being an active partner in the design process to identify areas where a project may benefit by additional analysis.


Who We Are

Meet Our Talented Team

3Com Cafe

Asana Partners

Asana Partners | Northpond Ventures

Brickyard VFX

CRISPR Therapeutics

First Republic Bank

GlaxoSmithKline Development Offices

Indigo Ag

Millennium Pharmaceuticals

Risk Strategies