Michigan Tool & Gauge, Inc.
Offers the capability to engineer and manufacture prototypes, gages, tooling, and complete machined products.
http://www.michigantool.com/

Roberts Tool and Die Company
Features tools, dies, fixtures, gages, and prototypes as well as CNC milling, CNC turning, wire EDM and CMM services.
http://www.r-t-d.com

Levi Tool & Mold
Levi Industrial web site featuring Spiral Pipe Forming Heads.
http://www.levitool.com/

Lesmark Tool and Manufacturing Company
Lesmark Tool and Manufacturing Company specializes in precision machining, tooling, fixtures, and prototypes. Located in Chicago, IL, it is a builder of specialty machinery and assemblies.
http://www.lesmarkinc.com

Enhanced Tool Inc.
Specializes in CNC milling, turning, and grinding, production of prototypes, and job-run machining. End products include precision tools, fixtures, gages, and dies.
http://www.enhancedtool.com/

Diamond Tool and Die, Inc.
Machine shop specializing in edm machining, precision plastic machining, cnc machining. We prototype machines, cnc milling machines and edm machines. From a metal lathe to precision plastics and everything in between.
http://www.diamond-tool.com/

Seibert Machine & Tool Inc.
Specializes in short and medium run machining jobs. Includes milling, turning, and grinding. Can also produce prototypes, jigs, and fixtures. Site provides list of available equipment.
http://www.seibertmachine.com

Custom PCB Inc.
We specialize in custom PCB fabrication and PCB prototypes. PCB manufacturing
http://www.custompcb.com

Middleville Tool and Die Co., Inc.
Middleville Tool and Die Co. Established 1966. TS16949:2002 certified manufacturer of metal stampings, formed rods and assemblies. In house design and build of progressive dies, line dies, fixtures and prototypes.
http://www.mtd-inc.com/

Milco WaterJet
Milco Waterjet offers the versatility, precise machining and clean finish of water jet machining, an excellent alternative to laser cutting and plasma cutting, to avoid expensive secondary finishing.
http://www.milcowaterjet.com/