(Series with open competition are underlined)
Avon: British GT; various British road-racing, hill-climb, rally-cross and vintage series.
BFGoodrich: IRC: USAR stock car series; SCCA Barber Dodge; NHRA; CORR; SCORE; WSORR; Grand-Am Miller Cup; various off-road, rock-crawling and drifting championships; Legends/Thunder Racers.
Bridgestone: FIA Formula 1; FIA Formula GP2; IRL IndyCar and Indy Lights (Firestone brand); Super GT (Japan).
Cooper: Champ Car Atlantic Series; British Formula 3; Formula Ford 2000; drifting; NHRA (with Mickey Thompson brand).
Dunlop*: ALMS; LMS; British, French, German Touring Car Championships; Australian V8 Supercar Series; Super GT (Japan).
Falken: ALMS; drifting.
General Tire: SNORE; WSORR
Goodyear: NASCAR Sprint Cup, Nationwide Series, Camping World Truck Series, Canada, etc.; NHRA Top Fuel, Funny Car and Pro Stock; SCCA road racing; Star Mazda Championship; WSORR; off-road; rock-crawling.
Hankook: ALMS: IMSA Lites; Pacific F2000; SCCA; NASA; CORR; Rally America; German Formula 3.
Hoosier: ARCA; NASCAR West, etc.; WOL; various dirt and paved circle track series; Grand-Am Koni Challenge; F2000 Championship; SCCA road racing and solo; NHRA (various classes up through Pro Stock); IHRA; USAC Silver Crown, Sprint Cars, Midgets; Lucas Oil Dirt Racing; karting.
Kumho: ALMS; CORR; WSORR; drifting; SCCA Mazda MX-5 Cup; FIA Formula 3 Eurochampionship.
Maxxis: WSORR; off-road; drifting; rock crawling.
Michelin: ALMS; LMS; A1GP; Formula BMW; Super GT (Japan).
Nitto: SCORE; NASA-USTCC.
Pirelli: Grand-Am Rolex Series; VW Jetta TDI Cup; Drivers Cup USA: FIA World Rally Championship; IRC; FIA GT.
Specialty Tires/American Racer: WOL; Lucas Oil Dirt; various dirt track series.
Toyo: CORR; SCORE: BITD; WSORR; SCCA Speed World Challenge and national events; NASA (various series); NHRA; Super GT (Japan).
Yokohama: ALMS; Patron GT3 Challenge; Formula 3 (Asia); FIA European Touring Car Championship; Formula International; SCORE; BITD; drifting, rock crawling; IRC.
* Dunlop racing activities are handled by Dunlop Tyres Ltd.'s Dunlop Motorsport Division, which designs and builds Dunlop racing tires at the firm's plant in Birmingham, England, and which coordinates racing activities in Asia with Sumitomo Rubber Industries Ltd.
RACING SANCTIONING ENTITIES:
American Le Mans Series (ALMS); Automobile Racing Club of America (ARCA) Inc.; American Speed Association (ASA); Best in the Desert (BITD); Championship Off Road Racing (CORR); Formula Drift Holdings L.L.C.; Federation Internationale de l'Automobile (FIA); Grand American Road Racing Association (Grand-Am); Indy Racing League (IRL); Intercontinental Rally Championship (IRC); International Hot Rod Association (IHRA); Le Mans Series (LMS); National Auto Sport Association (NASA); National Hot Rod Association (NHRA); National Auto Stock Car Racing (NASCAR); SCORE International; Southern Nevada Off-Road Enthusiasts (SNORE); Sports Car Club of America (SCCA); United Speed Alliance Racing (USAR); United States Auto Club (USAC); World of Outlaws (WOL); World Series of Off-Road Racing (WSORR).