Penn Detroit Diesel Allison
- Manufactures Detroit Diesel engines, Allison transmissions, electrical power generation systems and climate control products. Includes information on products, services and locations.
- http://penndda.com/

Sunshine Instruments
- Stocking distributors of test, measurement and calibration equipment as well as calibration services.
- http://www.measurebetter.com/

Bartlett Bearing
- Distributor of anti-friction ball and roller bearings; includes details on products and contact information.
- http://www.bartlettbearing.com/

JPC Specialties and Fasteners
- Distributes standard fasteners and brand name specialty fasteners. Product gallery, catalog order, information request and contact information.
- http://www.jpcfasteners.com/