Roktork Controls
Rolled Alloys
Royal Precision LLC
Rsvp Actuators, Inc.
Salzgitter Mannesmann Stainless Tubes
Scrap trading International
SCV Valve, LLC
SDB Trade International, LP
Service Metal
Seybold International Corp.
Silbo Industries, Inc.
SMP Supply
SNAPP
SouthCross Materials LLC
Southwest Machine Works
Space City Distribution, Inc.
Special Piping Materials
Stream-Flo Industries
STS Industrial, Inc.
Sunbelt Supply
Sunbelt Supply Co. #2
Superior Valves
Swepco Tube, LLC
Swift Oilfield Supply - Canada
Ta Chen International, Inc.
Tambora America Inc.
Taylor Valve Technology
TCT Steel Trading
Texas Pipe & Supply
The Phoenix Forge Group
The Shaw Group
The Weldbend Corporation
The Wholesaler
Tioga Pipe
TK Corporation Pipe Fittings
TPC Industrial LLC
Trace Applications Inc.
Traeger Brothers & Associates, Inc.
Trident Steel Corp
Triga Fire Solutions LLC
Trouvay & Cauvin
Trupply
Tubacero
Tubacex America Inc
Tube Forgings of America, Inc.
Tubular Steel, Inc.
TWC the Valve Company
U. S. Metals
U.S. Alloys, Inc.
Union Tech
United Pipe & Steel
United Titanium Inc.
Valbruna Stainless, Inc.
Valero Energy
Vallourec Usa Corp.
Valve Source, Inc.
Valveconn
Valves Unlimited Inc.
Valvosider
Van Leeuwen Pipe and Tube
Venturi Supply
Victaulic
Viega LLC
Vogt Valves Inc.
Ward Mfg.
Webco Industries, Inc.
Welding Outlets, Inc
Welding Outlets, Inc. #2
Westbrook Energy 1
Westbrook Energy 2
Western Forge & Flange
WFI International / Bonney Forge
Wheatland Tube
Whitliejo Specialty Company, LLC
William E. Williams Valve Corporation
World Wide Pipe
Xanik USA
YDF Valve International, Inc. (YVI)
ZSpec Flow Control, Inc.
Zwick Valves N.A. LLC