- Hollman, Inc.
 - Manufacturer and supplier of racquetball and squash court systems and locker rooms for projects around the world. - A Best Enterprises, Inc.
- Offers Doubleplay glass wall systems for racquetball, squash, and handball courts.
- Court Company, The
- Designer and builder of racquetball and squash courts.
- Allied Racquetball Products, LLC.
- Specializes in racquetball court construction and renovation, athletic maple and rubber flooring, rubber mats, tiles, and flooring for fitness centres, home gyms, and kennels.
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