Aegis Metal Framing
Aegis Metal Framing, LLC is the leading provider of pre-fabricated cold-formed steel truss and panel systems, and services for commercial, institutional and residential construction. Aegis provides a complete line of cold formed steel framing (also known as light gauge steel framing) including the UltraSpan® truss system, TradeReady® products (floor joists, headers, Spazzer bars) and WallSolutions™ pre-fabricated panels.
http://www.metalite.com/

Nucor Steel
Products produced are carbon and alloy steel in bars, beams, sheet, and plate, joists and joist girders, steel deck, cold finished steel, fasteners, metal building systems, and light gauge framing.
http://www.nucor.com/

NUCONSTEEL
Designer and manufacturer of light gauge steel framing for residential and light commercial construction.
http://www.nuconsteel.com/

Ashlar Metal Products
Fabricates light gauge steel and structural steel framing. Based in Ontario Canada.
http://www.ashlarmetal.com/

Jersey Shore Steel
Manufacturer of light gauge, high strength rail steel angles including angle fabrication.
http://www.jssteel.com

Pacific Panel and Steel Truss, Inc.
Fabricates light gauge steel roof and floor trusses. Dimensioning and fabrication data.
http://www.pacificpanelsteeltruss.com/

Inter Mountain Steel
Authorized Aegis light gauge steel fabricators. Fabricating Ultra-Span® truss systems, TradeReady® floor joist systems and Wall SolutionsTM wall panel systems.
http://www.intermtnsteel.com/

JEA Steel Industries, Inc.
Philippines Jea Steel: Light metal frames and light guage steel frames manufacturer.
http://www.jeasteel.com.ph

The Steel Network, Inc.
Offers light gage steel framing solutions including connectors, fasteners, wall systems, clips, and software. Features online 3D installation and education material.
http://www.steelnetwork.com/

Dietrich Steel Joists
Manufacturer of light gage steel joists for commercial and residential construction.
http://www.dietrichsteeljoist.com/