| ALPS International: Provider of hearing aids, audiometers, Bera and other audiological equipment. |
| Audiomed, Inc.: Supplies audiometric, sound measuring equipment and calibration services to Central and Southern California, Southern Nevada and Hawaii. |
| Benson Medical Instruments Co.: Manufacturers of industrial audiometers, hearing conservation software, and accessories. |
| Calimaster Sound Systems: Audiology equipment. |
| Digital Hearing Systems: Produces computer-controlled industrial audiometers and software. ArkanSoftware produces a flexible multi-provider DOS/Windows appointment scheduler and a database program for volunteer fire departments. |
| Elkon: Manufacturer of hearing aids and audiometers in India. |
| Frye Electronics: Leading manufacturer of hearing aid analyzers and audiometers. |
| G M Instruments Ltd.: Information on rhinomanometers, audiometers and acoustic rhinometers |
| Gordon Stowe Audiology Equipment: Audiology equipment new and used. |
| Intelligent Hearing Systems: Develops and refines quick and cost-effective methods for newborn, infant, and adult hearing evaluation. |
| Interacoustics: Manufactures clinical audiometers and other testing equipment for specialists, hospitals and hearing aid dispensers. Includes details of worldwide distribution network. Assens, Denmark. |
| Lifeline Medical, Inc: Supplier of Welch Allyn hearing testing instruments such as audiometers and tympanometers. |
| Madsen Online: One of the world's leading manufacturers of audiological equipment and application software, primarily for the clinical audiology and ENT markets. |
| Maico Diagnostic: MAICO audiometers and impedance meters can be found in schools, hospitals, clinics and industries of all kinds throughout the world. |
| Medical Technologies, Inc.: Regional representative, located in the upper midwest, for various manufacturers of audiological and hearing-related equipment. |
| Micro Audiometrics Corp.: Manufacturer of a line of middle ear analyzers and audiometers. |
| Spectral Visualization and Development (SVD) Inc.: Provides Tinnitus Pro software. Approach is based on residual inhibition. |