Kinsler
- Specializes in fuel injection parts and systems for racing and street applications.
- http://www.kinsler.com

Tunit
- Offers diesel tuning kits. Includes application overview and testimonials.
- http://www.tunitsussex.co.uk/

Williams Controls, Inc.
- Manufacturer of electronic throttle control system for automobiles and commercial vehicles.
- http://www.wmco.com/

Tenneco Inc.
- Manufacturer of automotive emissions controls and ride-control products and systems. Careers, investor relations, and company profile. (NYSE:TEN).
- http://www.tenneco.com/

Standard Motor Products, inc.
- Manufactures engine management and temperature control parts for all makes of cars and trucks.
- http://www.smpcorp.com/

Sabris Consulting
- Offers engine management system consulting for gasoline and diesel engines. Includes company profile and capabilities.
- http://www.sabrisconsulting.com/

Precision Governors, LLC
- Manufacturers of control and instrumentation systems for gas and diesel engines. Includes product overview.
- http://www.precisiongovernors.com/

GB Instruments, Inc.
- Gauges, speedometers, tachometers, engine monitoring devices and instrumentation for OEM design engineers.
- http://www.gbinstruments.com/

Erdir Otomotiv
- Manufacturer of parts for diesel fuel injection systems. Includes company profile and capabilities.
- http://members.smetc.com/erdiroto/

DTA Race Electronics
- Producers and suppliers of racing engine management systems, fuel injection throttle bodies and induction system components. Contains product details, wiring diagrams, sample screens, and list of distributors.
- http://www.dtafast.co.uk/

Davis Unified Ignition
- Manufacturer of ignition products for a variety of cars.
- http://www.performancedistributors.com/

Comesys Europe
- Manufacturer of drive by wire systems for engine control. Includes product overview, technological aspects and company profile.
- http://www.comesyseurope.com