Spring Dynamics - Almont, MI
Manufacturer, Custom Manufacturer
TS/ISO 16949 certified manufacturer of counterbalances, spiral, power, clock, extension, compression & torsion springs of all shapes & sizes & from most materials.  Several in-line finishing & secondary processes available.  Full service design & engineering available.
www.springdynamics.com/products

Jackson Spring - Elk Grove Village, IL (Serving Michigan)
Custom Manufacturer, Service Company
ISO 9001:2008 certified manufacturer of precision springs, wire forms and complex parts. Types of springs include compression, coil, custom, extension, torsion & magazine springs. Materials include stainless steel, music wire, carbon steel, chrome silicon & exotic alloys. Industries serving include automotive, appliance, firearm, furniture, hardware, healthcare, lawn and garden. Military & recreation.
www.jacksonspring.com/Products.html

Pro-Tech Tool & Engineering - Frankfort, IN (Serving Michigan)
Manufacturer, Custom Manufacturer, Service Company
Custom tool design & manufacturer of wire formed parts including springs. Capabilities include complex bending, swedging & forming using multi-stage tooling if required for some complicated forms. Can tool 1/4 in diameter wire with 19 in. long progression with 16 bends forming complete part on fourslide machine. Materials include hot rolled, cold rolled, galvanized, stainless steel, titanium, aluminum, HSLA, bronze, copper, brass, high carbon & nickel silver. Industries served include automotive, appliance, computer, lighting, fencing, electric motor, consumer goods & all types of industrial clips & brackets.
www.pro-techtool.com/products.htm

Franklin Fastener Co. - Redford, MI
Manufacturer, Custom Manufacturer, Service Company
ISO/TS16949:2009, ISO9001:2008 & AS9100 registered manufacturer of standard & custom wire forms including flat & special springs. Materials include low carbon steel & stainless steel. Wire forms include pre-tempered & pre-coated wire forms. Capabilities include CNC & Multislide® wire forming, wire dia. up to 0.315 in., in-process embossing, coining, trimming & welding.
www.franklinfastener.com/industry_applicati...

Automatic Spring Products Corp. - Grand Haven, MI
Manufacturer, Custom Manufacturer
Manufacturer of spring formed wire products & small stampings to specs. 40 production fourslide machines. 20 punch presses from 10 to 150 ton. light assembly capability

Motion Dynamics Corp. - Fruitport, MI
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer of standard, custom & special springs. Types of springs include micro, miniature, precision, medical, compression, flat, garter, conical, barrel, magazine, extension, torsion & double torsion springs. Elgiloy®, Nitinol®, tungsten, titanium, platinum, platinum iridium, platinum tungsten, tantalum, gold, silver, stainless steel, nickel, titanium alloys, beryllium copper, Inconel®, Hastelloy® & copper are used. Capabilities include rapid prototyping, short & long run productions, laser welding, electro-polishing & ultrasonic cleaning. RoHS, DFARS & NNSA compliant.

Peterson Spring Packaging - Three Rivers, MI
Manufacturer, Custom Manufacturer
Manufacturer of metal stampings.

M.D. Hubbard Spring Co., Inc. - Oxford, MI
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified. Manufacturer of compression, extension & tension springs including special, ring, spiral, torsion & wire springs.

Peterson American Corp. - Southfield, MI
Manufacturer, Custom Manufacturer
Springs, Clamps, Wire Forms, Stampings, Custom To Specs. Any Type, Size Or Quantity

Schnorr Corporation - Ann Arbor, MI
Distributor, Manufacturer, Custom Manufacturer
Special Springs. Belleville Coned Disc Springs. Stock or customs (DIN 2093) standards, Belleville Disc Washers, engineered to specs design assistance, nuclear & aerospace approved. ISO 9002 certified. Hose Clamps, Pipe Clamps & Tubing Clamps.

Reid Supply Company - Muskegon, MI
Distributor, Custom Manufacturer
Distributor of springs. Urethane springs, torsion springs, conical springs, compression springs, extension springs, & drawbar springs.

American Coil Spring Company - Muskegon, MI
Manufacturer, Custom Manufacturer
Manufacturer of special springs.

Midwest Spring Manufacturing Co. of Michigan - Muskegon, MI
Manufacturer, Custom Manufacturer
Helical, Hot Wound & Flat Springs, Wire Forms, Stampings

Gmi Composites, Inc. - Muskegon, MI
Manufacturer, Custom Manufacturer
Manufacturer Of Custom Molded Structural Composites

Cloverspring - Troy, MI
Manufacturer, Custom Manufacturer
A Cone-Shaped Spring That Replaces Coil Springs & Belleville Washers Where Space Is At A Premium & Fatigue Life Is Critical

Attwood/Springlift - Lowell, MI
Distributor, Manufacturer, Custom Manufacturer
Manufacturer & Distributor Of Pneumatic Springs For Hinged Panels, Lids, Doors, Windows & Hatches. Mounting Brackets, Fastening Devices