About Us

Colby Company LLC is a multi-disciplinary design firm with registered Professional Engineers in the Electrical, Mechanical, Fire Protection, Structural and Civil fields as well as an experienced group of Architects and Architectural Designers. With professional registrations in 35 states, five Canadian Provinces and world-wide project experience, Colby Co. LLC provides designs for numerous types design projects.  From boiler design to building renovations, energy audits to arc flash analysis, chiller system design to construction administration, one of our strengths is the diversity of project experience on which we can draw.


Colby Co. was created by Calen and Sarah Emily Colby to be a one-stop shop for mechanical, plumbing, fire protection, electrical, structural and civil engineering and architecture. With 60 employees and hundreds of projects under our belts, we offer a talented group of professionals. Colby Co provides their employees with many different types of fun opportunities outside of work including Annual Parties, Maine State Park Passes, trips to Maine Huts and Trails, access to Sea Dogs Season Tickets, paid volunteer days and summer hours.  These opportunities help build the culture and strengthen relationships in the office as well as provide places to unwind outside the office. Current opportunities include:


Project Manager

Electrical Engineer