About Colby Co.

Our story

Formed in 2008 in Portland, Maine, Colby Co. has served as the Prime Architect/Engineer designer for $500m+ in estimated construction costs.

From the owners

Colby Co. was founded by Sarah Emily and Calen Colby to be a multi-disciplinary firm offering architecture and mechanical, fire protection, electrical, structural and civil engineering. With 60+ employees and hundreds of projects under our belts, we offer a talented group of professionals.

Calen and Sarah Emily, along with co-owners Brian Beaulieu and Ben Townsend, are committed to Colby Co.’s goals of providing excellent service, unique opportunities for professional growth, and a respectful workplace.

Our culture is one of deep respect for, and collaboration with, every team member and we’re proud to have been ranked in the Top Ten of the “Best Places to Work in Maine” for four consecutive years.

Our disciplines

I love architecture!

Experienced with Planning Studies, Design and Construction Administration

Provides site permitting, utility, roadway, runway, parking and pavement design

Graphic of building being constructed

Experienced with new and renovated buildings and heavy industrial applications

Experienced with HVAC, industrial waste heat, CHP, solar, boilers, radiant heat, dehumidification systems, airflow dispersion analysis and absorption chillers

Fire Protection icon

Providing medium and low voltage electrical service; distribution systems; emergency power generation; lighting; and alternative energy designs

Performs risk analysis and designs code-compliant fire suppression, alarm, and smoke control systems

Colby Co. culture

Our values, our attitude, our outlook–in a word, our culture. We think the bonds we build and the community we’ve made, with both our clients and our office colleagues, is something that sets us apart. But those aren’t just words.

Learn more

A Maine-based small business with registered professional engineers in the electrical, mechanical, fire protection, structural and civil fields.

Our disciplines

Our people

Our 60 staff members are registered professionals, seasoned experts and creative thinkers.
We’re pleased to meet you!

Executive team

Sarah Emily Colby


Calen Colby, P.E.


Brian Beaulieu, P.E.

Vice President

Ben Townsend, P.E.

Vice President


Suzanne Barr


Heather Beaulieu

Marketing and Recruiting Manager

Laura Clough

IT Services

Hannah Lilly

Administrative Assistant


Elizabeth Coronado, AIA

Architectural Department Head

Nick Conner

Shannon Haley

Emily LeDoux

Richard McSherry, R.A.

Shaili Patel

Christian Prasch, LEED

Sybil Przeszlowski, R.A.

Jonathan Robitaille


Craig Smith

CADD Department Head

Scott Cote

Marc Desjardins

Corey DeWitt

Darlene Estabrook

Ted Goulet

Craig Jackson

Peter Shedlock

Claire Walsh

Anthony York

Civil Engineering

Lee Allen, P.E.

Department Head

David Manzo

Electrical Engineering

Jason Beaulieu, P.E.

Electrical Department Head

Emily Bates, P.E.

James Hebert, P.E.

Paul Rouleau

Jay Westra, P.E., LC, LEED AP BD+C

Fire Protection Engineering

Aaron Bundy, F.P.E., S.E.T.

Zachary Green

Chris Nelson

Mechanical Engineering

Jason Beaulieu, P.E.

Electrical Department Head

David Brown, P.E.

Peter Brown, P.E.

Zak Charette

Rich McCauley, P.E.

Nate Sirois, P.E.

Project and Construction Management

Dan Bodenski, P.E.

Gary Collette

Rachel Cox

Lacey Fogg

Zach Jones

Mary Kate Newton

Perry Schwarz

Winfield Stratton

Structural Engineering

Sam Thomas, P.E.

Structural Department Head

Patrick Duffy, P.E.

Nathaniel Dyer, P.E.

David Sheldrake, P.E.

Heather Sustersic, P.E.

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