Sonoma Metal Products
Sonoma Metal Products has extensive experience in design, tooling and manufacture of precision metal fabrications including sheet metal, wireforms, sheet metal/wireform combinations, and steel and aluminum tube weldments.
http://sonomametal.com/

Dave Mabon Sheet Metal
Read about this sheet metal business in the North County area of San Diego specializing in custom sheet metal and raingutter work.
http://www.dmsheetmetal.com/

Constructive Sheet Metal, Inc.
Design & fabrication of dust collectors (indoor dust collection & outdoor dust collection systems), material handling fans & sheet metal products.
http://www.constructivesheetmetal.net/

Arrow Sheet Metal Ltd.
Arrow Sheet Metal specializes in custom sheet metal products and small-to-medium-sized production runs for the industrial and commercial market
http://www.arrowsheetmetal.ca

New Horizons Foundation
Leading sheet metal contractors, in partnership with SMACNA, have established the New Horizons Foundation - A Sheet Metal Industry Initiative.
http://www.newhorizonsfoundation.org/

Oneto Metal Products Corp.
Fabricator of standard or custom architectural and precision sheet metal. Products include roof flashings, and trim for metal roofs and buildings .
http://www.onetometal.com/

Royce Metal Products
Metal spinning and sheet metal components for the aerospace, military and international commercial marketplace.
http://www.royce-metal.com/

Royce Metal Products Ltd.
Metal spinning and sheet metal components for the aerospace, military and international commercial marketplace.
http://www.royce-metal.com

C & J Metal Products Inc.
C & J Metal Products is a manufacturer of HVAC building products, sheet metal, roofing, ventilating and waterproofing products, gutters, window canopies, perimeter systems, dormers, and chimney saddles.
http://www.cjmetals.com/

Bull Metal Products, Inc.
Bull Metal Products, INC. A manufacturer of sheet metal, rigid wire, and tubing products. Manufacturing production runs, custom designs, prototypes, O.E.M. Highest quality and full customer attention.
http://www.bullmetal.com/