Newcomb Spring Corp.
Spring Manufacturing at Newcomb Spring of precison coil springs. Spring Manufacturing of compression springs, large torsion springs and extension springs by ISO-certified Newcomb Spring.
http://www.newcombspring.com/

Kirk-Habicht Company
Spring Manufacturer - compression springs, extension springs, torsion springs, springs.
http://www.kirk-habicht.com

Master Spring & Wire Form
Master Spring is a manufacturer of wire forms and custom springs, including compression springs, extension springs and torsion springs.
http://www.masterspring.com/

Smalley Steel Ring Co.
Manufactures spiral retaining rings, seal rings, wave springs and flat wire compression springs.
http://www.smalley.com/

Dayon Mfg., Inc.
Manufacturer of custom miniature springs, sub-miniature compression, extension, as well as standard sizes with wire diameters of .0028 to .125 inches. Dayon can provide Miniature Springs, Compression Springs, Extension Springs, Torsion Springs, Wire Forms, as well as expert Engineering Assistance
http://www.dayonmfg.com/

Norris Springs Ltd
Norris Springs are a UK based manufacturer of compression springs, extension springs, torsion springs and flat springs
http://www.norris-springs.co.uk

Won iL Corporation
Manufacturers of compression, extension, flat, torsion springs and wire formings, pin and ring.
http://www.bestspring.com

American Precision Spring
American Precision Spring Corporation is a full service custom spring manufacturer, Silicon Valley spring manufacture, bay area spring manufacturer, California spring manufacture, Northern California Spring Manufacture.
http://www.americanprecspring.com/

Newcomb Spring Corporation
Spring Manufacturing at Newcomb Spring of precison coil springs. Spring Manufacturing of compression springs, large torsion springs and extension springs by ISO-certified Newcomb Spring.
http://www.newcombspring.com

A.V. Weber Company Inc
A.V. Weber in North Wale, PA manufactures springs, wireforms and stampings for industrial, aerospace, medical, pharamaceutical and specialty components.
http://www.avweber.com/