Links to title histories (* = defunct organization):

• Big Time Wrestling
• Capitol Wrestling Corporation *
• CHIKARA
• Extreme Championship Wrestling *
• Independent Wrestling Federation
• Jersey All Pro Wrestling
• New York Wrestling Connection
• N.W.A. Jim Crockett Promotions *
• N.W.A. On-Fire / Liberty States Wrestling
• Northeast Wrestling
• Pro-Wrestling WORLD-1
• Ring of Honor
• Total Nonstop Action Wrestling
• World Championship Wrestling *
• World Wrestling Entertainment

Other active organizations (links to official websites):

• American Championship Entertainment
• BODYSLAM Wrestling Organization
• East Coast Pro Wrestling
• EVOLVE
• Fight The World Wrestling
• Forgotten Championship Wrestling
• Independent Superstars of Pro Wrestling
• Liberty Wrestling Organization
• National Wrestling Superstars
• New Horizon Pro Wrestling
• N.W.A. Force One
• Power & Glory Wrestling
• Pro Wrestling Revolution
• Pro Wrestling Syndicate
• Victory Pro Wrestling
• Women Superstars Uncensored
• World of Unpredictable Wrestling
• Warriors of Wrestling