- Custom Thumbs Inserts
 - Offers kits allowing users to produce an insertable thumbhole mould. - Donkee Products
- Bowling ball spinners and carriers.
- Ebonite
- Manufacturer of bowling balls, bags, and accessories.
- Handy Bowl
- Manufacturer of bowling ramps for the physically challenged.
- Innovative Bowling Products
- Manufacturer of bowling ball spinners and pro shop equipment.
- J.T. Bowling Enterprises, Inc.
- Makers of Thom's Thum, a bowling ball thumb insert system.
- Robby's
- Makers of gloves, wrist supports, shoe covers, and skin conditioners.
- Storm Products, Inc.
- Manufacturer of performance bowling balls, bags, and other bowling accessories.
- Team Cobra Products
- manufacturer and distributor of hi-tech bowling wrist supports, including the Cobra, the Scorpion, and the Eagle.
- Young Il Trading Co.
- Manufacturer and exporter of bowling bags.
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