(303) 861–2070
1325 East 16th Ave, Denver, CO 80218

Our Principals

Celeste Cizik

CEO/Existing Buildings Director

Laura Charlier

Sustainability Director

Matt Cooper

Commissioning Director

Michael Levinson

Multifamily Housing Director

Our Staff

Susan Reilly

Founder/Energy Team Leader

Alec Bronson

Energy Engineer

Alec Holmstrom

Energy Engineer

Anna McCullough

Sr. Energy Project Manager

Alex Rouin

Building Enclosure Engineer

Annie Kell

Sustainability Project Manager

Ben Hoesly

Energy Consultant

Bill Geisheker

Building Enclosure Engineer

Bryce Buchanan

Energy Project Manager

Chris Purdie

Commissioning Engineer

David Lawry

Sr. Commissioning Project Manager

Emily Rader-Neely

Sr. Energy Project Manager

Emily Schwartz

Energy Engineer

Erik Swanton

Sr. Energy Project Manager

Farah Wissinger

Sustainability Project Manager

Holbrook Phelan

Building Enclosure Project Manager

Imani Garcia

Energy Engineer

Isaac Porte

Commissioning Engineer

Grace Gillenwater

Energy Project Manager

Josh Hathaway

Energy Consultant

Jackson Knight

Sustainability Consultant

Kyle Zimbelman

Energy Engineer

Kate DuMez

Sr. Commissioning Project Manager

Kate Herda

Office Administrator

Katie Leiker

Energy Engineer

Kayli Skinner

Sustainability Consultant

Kori Louvall

Commissioning Engineer

Kristina Farrell

Embodied Carbon and Materials Specialist

Laura Unrein

Sustainability Project Manager

Lauren McNeill

Sr. Sustainability Project Manager

Logan Davidson

Sustainability Consultant

Louise Fonda

Sustainability Consultant

Libby Coleman

Energy Project Manager

Madeline Goulet

Office Administrator

Madi Gore

Business Development Coordinator & Sustainability Consultant

Michael Harris

Energy Project Manager

Natalie Weber

Finance Manager

Nick Buike

Commissioning Team Leader

Nick Engler

Energy Engineer

Nicole Ilderton

Energy Consultant

Ola Czastkiewicz

Multifamily Sustainability Consultant

Pachia Moua

Lighting Commissioning Project Manager

Rachelle Macur

Sr. Sustainability & Social Impact Manager

Riley Cowing

Marketing Specialist

Ryan Mitchell

Lighting Commissioning Engineer

Sade Odumuye

Energy Engineer

Sarah Hong

Energy Project Manager

Scott Tonn

Sr. Commissioning Project Manager

Shelia Gore

Operations Manager

Sonja Simpson

Electrical Commissioning Project Manager

Taylor Roberts

Energy Director

Steve Schanes

Commissioning Engineer

Thea Diep Ton

Energy Engineer

Tom Flanagan

Project Manager

Zach Taylor

Commissioning Engineer

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