Skip to Main Content

Contact Us


Talk to an expert.

How can we help you navigate the clean energy transition? Fill out the form below or reach out to one of our regional offices.

Office Locations:



Half Moon Bay, California (RI Headquarters)
719 Main Street, Suite A
Half Moon Bay, California 94019
Tel: 650.761.6456

Boulder (Louisville), Colorado
1025 Cannon Street, Suite 200
Louisville, Colorado 80027
Tel: 303.402.2480
Fax: 303.693.3183

Collinsville, Connecticut
41 Bridge Street
Collinsville, Connecticut 06022
Tel: 860.693.2450


Chandler, Arizona
3100 W Ray Road, Suite 230
Chandler, Arizona 85226
Tel: 480.345.7600
Fax: 480.345.7601

Chicago (Oak Brook), Illinois
Oak Brook Pointe
700 Commerce Drive, Suite 500
Oak Brook, Illinois 60523
Tel: 630.480.8147

Chicago, Illinois
400 North Michigan Avenue, Suite S600
Chicago, Illinois 60611
Tel: 312.801.6002

Des Moines, Iowa
1312 Locust Street, Suite 200
Des Moines, Iowa 50309
Tel: 515.280.0708


Madison, Wisconsin
1232 Fourier Drive, Suite 125
Madison, Wisconsin 53717
Tel: 608.824.1220
Fax: 608.829.2723

Salt Lake City, Utah
5101 S Commerce Drive, Suite 200
Murray, Utah 84107
Tel: 801.639.5600
Fax: 801.266.4786

Toronto
TD Canada Trust Tower
161 Bay Street, Suite 2765
Toronto, Ontario M5J 2S1
Canada
Tel: 416.572.2764