Earmold Design, Inc
- Producing custom earmolds. Minneapolis, Minnesota, USA.
- http://www.800ediminn.com/

Westone Labs, Inc.
- Supplies earmolds and accessories for hearing health care professionals. Manufacturers custom fit hearing protection devices.
- http://www.westone.com/

Emtech Laboratories, Inc.
- Emtech is a dependable source for earmolds, noise and ear protectors, accessories and supplies.
- http://www.emtech-labs.com/

Precision Laboratories, Inc.
- Manufacturer of custom earmolds for hearing aids, and protection, monitors and communications for race teams and law enforcement departments.
- http://www.precisionweb.com/

Microsonic Inc.
- Microsonic is widely recognized as one of the world's leading full service earmold laboratories.
- http://www.earmolds.com/