Boutique engineering firm. Tackling climate change one building at a time.

Building relationships with architects, owners, and developers in an interdisciplinary and collaborative way.

About Us

In 1992 Petersen Engineering Inc. was founded to advance sustainability, occupant health and comfort, resiliency, and affordability in the built environment. We are a mission-driven engineering firm, with a holistic, forward thinking approach to enabling our clients to create high-performance, sustainable projects. For almost 30 years, we have focused on designing HVAC, electrical, fire protection and plumbing systems for buildings of increasing size and complexity, developing expertise in various high-performance building standards such as LEED, net zero, and Passive House. Our staff – 33 and growing – are known for being collaborative, progressive, friendly and honest, with can-do attitudes and a thirst for learning. Our vision is to be the best MEP/FP firm in the Northeast.