Management

Team

At ERS, energy efficiency is our passion. We started this business as a way to make a difference, and today we use our experience as thinkers and doers to make a difference leading our clients toward sustainable practices.

Gary Epstein

President

Mark D'Antonio

Senior Vice President

Brian McCowan

Senior Vice President

Sue Haselhorst

Vice President

Jon Maxwell

Vice President

Mary McElhiney

Vice President

George Zúñiga

Regional Director

Lucy Neiman

Senior Director

Satyen Moray

Director

Mersiha McClaren, Ph.D.

Director of Evaluation

Patrick Hewlett

Director

ERS

Headquarters

120 Water Street
North Andover, MA 01845
978-521-2550

Connecticut

21 New Britain Ave
Rocky Hill, CT 06067
860-756-5880

Maine

323 State Street, Ste 2
Augusta, ME 04330
207-622-6888

New York

1430 Broadway, Suite 1609
New York, NY 10018
212-789-8182

251 River Street, Suite 202
Troy, NY 12180
518-288-0140

Texas

979-696-5465

California

151 N.Sunrise Ave
Roseville, CA 95661
916-256-3930

881 Martin Avenue
Santa Clara, CA 95050

N. Madison
Pasadena, CA 91101

Oregon

503-446-2654