- Alliance Homes
- Ballantry Homes
- Baywind Homes
- Biggart Construction
- Burleigh Custom
- Dalesrose Country
- Elite Home Building Leaders
- Embassy Homes
- Geranium Homes
- Gold Park Homes
- First View Homes
- Kaneff Group of Properities
- Lakeview Homes
- Los Andes Homes
- Mariposa Homes
- Mason Homes
- Milestone Custom Construction
- Signature Carlton
- Sorichetti Corporation
- South Shore Homes
- Van Berkel Construction
| - Astri Dino Surveying Ltd.
- C. C. Tatham & Associates Ltd.
- CDN Land Surveyors
- Condeland Engineering
- ConSALtech Engineering Solutions
- CT Strongman Surveying Ltd.
- EMC Group Ltd.
- Eplett Worobec Surveying Ltd.
- HVAC Designs
- HV Engineering
- J. D. Barnes Ltd.
- KRCMAR Surveying Ltd.
- Mas Engineering Inc.
- Picco Engineering
- Richardson Foster Engineering
- R. J. Burnside & Associates Ltd.
- Sernas Group Inc.
- Stantec Consulting Ltd.
- Structural Edge.
- Terra Probe Ltd.
- TSH Engineers, Architects & Planners
- Van Harten Surveying Inc.
| - ALPA Floor & Roof Systems
- Appliance Canada
- ARgo Lumber
- Atlas Block
- Barrie Metro Glass
- CANLYTE
- CAN-SAVE
- Central Fairbank Lumber Trim & Doors
- Chemcrest Architectural Products
- Coreslab Structures
- K.D. Clair Construction
- Kent Trusses
- Lake Scugog Lumber Co.
- London Roof Truss
- Luxor Industrial Corp.
- NASCOR Systems
- Orillia Glass and Mirror
- Rockett Lumber
- Rona Lansing Buildall
- Scugog Truss
- Simcoe Block
- Taiga Building Products
- Tamarack Lumber Inc.
- Tarpin Lumber
- Truss Joist
- Vytec
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| - BAM (Builder Advertising & Marketing)
- Flora Di Menna Designs Inc.
- Gabriel Advertising
- G. Ryan Design Inc.
- Guidelines Advertising
- Partnership Marketing & Communication Ltd.
- Maverick Graphics Inc.
- Toolbox Strategies
| - ATTO
- BCA
- BILD
- Tarion
- The Simcoe County Co-op Ed. Program
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