• CRCA - Chicago Roofing Contractors Association
• United Union of Roofers, Waterproofers and Allied Workers, Local No. 11
• NRCA - National Roofing Contractors Association
• MRCA - Midwest Roofing Contractors Association
• NERCA - Northeast Roofing Contractors Association
• WSRCA - Western States Roofing Contractors Association
• Florida Roofing, Sheet Metal and Air Conditioning Contractors Association
• Canadian Roofing Contractors Association
• SWRI - Sealant, Waterproofing and Restoration Institute
• RCI Roof Consultants Institute
• CSI - Construction Specifications Institute
• CSI - Construction Specifications Institute North Central Region
• CSI - Construction Specifications Institute - Chicago Chapter
• CSI - Construction Specifications Institute - No. Illinois Chapter
• AIA American Institute of Architects
• AIA Chicago Chapter
• AIA Eastern Illinois Chapter
• AIA Northeast Illinois Chapter
• AIA Illinois
• ALA – Association of Licensed Architects
• National Safety Council
• SMACNA - Sheet Metal and Air Conditioning Contractors National Association
• SMACNA - Chicagoland Sheet Metal Contractors Association
• Mechanical Contractors Association of America
• MCAA - Mechanical Contractors Association of Chicago
• NECA - National Electrical Contractors Association
• NECA of Chicago - Chicago & Cook County Chapter NEA
• CISCO - Construction Industry Service Corporation
• United Union of Roofing, Waterproofing and Allied Workers
• 4Specs.com
• SCIP – Specifications Consultants in Independent Practice
• Underwriters Laboratories
• FM Global (Formerly Factory Mutual)
• City of Chicago Department of Construction and Permits