Diamond

Cianbro
Gorham Sand & Gravel
L&B Electrical
United Rentals

Platinum

Langford & Low
N.S. Giles Foundations
Zachau Construction
R.J. Grondin & Sons
Turner Construction
EnviroVantage Inc.

Gold

IRC
Shaw Brothers Construction
Bowman Constructors

Silver

Great Falls Construction
The Sheridan Corp.
Landry/French Construction
Storey Bros.
Electrical Solutions LLC
Methuen Construction

Bronze

ABM Mechanical
Deblois Electric
Johnson & Jordan
Metro Walls
Ranor Mechanical
Graybar Electric
Sargent Corporation
Ganneston Construction
Hebert Construction
Hahnel Bros. Co.