Veg Oil Motoring
- Offers one- and two-tank conversions for diesel vehicles in the Wales, United Kingdom. They also sell duty-paid vegetable oil.
- http://www.rodbowen.co.uk/daniel/home.htm

LoveCraft BioFuels
- They convert vehicles to run on vegetable oil and they have set up biodiesel fueling stations throughout the region. Based in Los Angeles, California, United States. Also has forums and tips on collecting oil.
- http://www.lovecraftbiofuels.com/

Veggie Fuel Systems
- Offers straight vegetable oil conversions, parts, and kits. Also provides on-site installation in central Florida, United States and conversions for all diesel applications.
- http://www.veggiefuelsystems.com

Greasel.com
- Offers kits and accessories to allow diesel cars and trucks to run on straight vegetable oil. Includes FAQs, illustrations, a chat room, and technical specifications.
- http://www.greasel.com

Greasecar Vegetable Fuel Systems
- Allows mechanically injected diesel vehicles to run on straight, filtered vegetable oil. Lists testimonials, a message forum, assembly pictures, and technical details.
- http://www.greasecar.com/

PlantDrive.com
- Offers a straight vegetable oil conversion kit for diesel vehicles. FAQs, a blog, product benefits, kits offered, and pictures.
- http://www.plantdrive.com/

ELSBETT
- A German company that sells a conversion kit to heat vegetable oil before it enters a vehicle's motor. Lists other products, kits available, and benefits of vegetable oil.
- http://www.elsbett.com/

Frybrid
- Manufactures a commercial conversion system for automobiles to run on WVO/SVO. Describes how it works, kits for sale, and biodiesel sales information.
- http://www.frybrid.com