Below is a list of signatory contractors with Sheet Metal Workers Local 63.

•  Bonner Sheet Metal—310 Southwest Cut-off, Worcester, MA 01604
• Carl Fisher Co., Inc.—42 Wilcox Street, Springfield, MA 01105
•  Dobbert Heating & Air Conditioning—558 Union St. North Adams, MA 01247
•  Fab-Tech, Inc.—480 Hercules Drive, Colchester, VT 05446
•  GDS Manufacturing, Inc.—67 Chad Lane, Williston, VT 05495
•  Greenwood Industries—50 Howe Avenue, Millbury, MA 01527  
•  J. D. Rivet Co.—P.O. Box 168, Indian Orchard, MA 01151
•  LAB Co.—P.O. Box 284, Feeding Hills, MA 01030
•  Kleeberg Sheet Metal—65 Westover Road, Ludlow, MA 01056
•  M & W Heating Inc.—188 Hubbard Avenue, Pittsfield, MA 01201
•  Milharmer Associates, Inc.—534 New State Highway Suite 3, Raynham, MA 02767
•  Modernized Architechtural Sheet Metal—243 Stafford Street, Worcester, MA 0160
• Moran Sheet Metal-613 Meadow Street, Agawam, MA 01001
• Northeast Heating & A/C, Inc.—97 Boyer Circle, Williston, VT 05495
• Performance Testing and Balancing LLC—282 Fomer Road, Southampton, MA 01073
• Pittsfield Pipers, Inc.—73 Fourth Street, Pittsfield, MA 01201
• Royal Steam Heater Co.— 499 Main Street, Gardner, MA 0144
• Titan Roofing Inc.—200 Tapley Street, Springfield, MA 01104
• Titan Roofing Inc.—165 Harding Street, Worcester, MA 01604
• United McGill Corp.—452 Harwood Hill Rd. Bennington, VT 05201
• U. S. Test & Balance—10 Corporate Park Dr. Hopewell Junction, NY 12533
•  William F. Lynch Co., Inc.—50 Millbrook Street, Worcester, MA 01606
•  Worcester Air Conditioning—148 Pleasant Street, Ashland, MA 01721
•  Yankee Sheet Metal, Inc.—35 Wrobel Place, East Hartford, CT 06108