Dolby Laboratories Licensing Corp., a subsidiary of Dolby Laboratories, Inc., is an American company. The firm provides patent buying, licensing and leasing services.

Widex A/S manufactures and distributes hearing aid devices for adults, babies, infants, and older children. It offers various types of hearing aids, such as completely-in-canal, receiver-in-the-ear, receiver-in-canal, and behind-the-ear hearing aids. The firm sells products under brand names such as Inteo, ALKIA, FLASH, Senso, Bravissimo, Bravo, SCOLA, and CAMISHA. The company was founded by Christian Topholm and Erik Westermann in 1956 and is headquartered in Lynge, Denmark.

Starkey is a world leader in the design, development and distribution of comprehensive hearing solutions. As the only privately held and American-owned company in its industry, Starkey Hearing Technologies is recognized across the globe as a premier provider in hearing healthcare.

Sivantos GmbH engages in the development, production, and distribution of hearing aids. It also offers accessories, adjustment software, and smartphone apps. The company was founded by Werner von Siemens in 1878 and is headquartered in Erlangen, Germany.

Micro Ear Technology, Inc. manufactured hearing aids. The company was headquartered in Eden Prairie, MN.

SensoDetect AB engages in the research and development within the medical diagnostics field. Its products and services include SensoDetect BERA, consultancy, and training activities within the psychiatric and neurological area. The company was founded by Olle Olsson, Sören Nielzén, and Johan Källstrand in 2005 and is headquartered in Mamlo, Sweden.

Natus is a leading provider of healthcare products used for the screening, detection, treatment, monitoring and tracking of common medical ailments in newborn care, hearing impairment, neurological dysfunction, epilepsy, sleep disorders, and balance and mobility disorders. Natus products include computerized neurodiagnostic systems for audiology, neurology, polysomnography, and neonatology, as well as newborn care products such as hearing screening systems, phototherapy devices for the treatment of newborn jaundice, head-cooling products for the treatment of brain injury in newborns, incubators to control the newborn’s environment, and software systems for managing and tracking disorders and diseases for public health laboratories.

Sonion Nederland BV designs and manufactures micro-acoustic and micro-mechanical components for hearing instruments. It offers products such as receivers, microphones, noise cancelling microphone, boom microphones, vibration sensors, passive telecoils, bone conduction vibrator, volume controls, switches, connector systems, trimmers, faceplates, tapers and sound dampers. The company is headquartered in Hoofddorp, the Netherlands.

Manufactures hearing instruments

IpVenture, Inc. (doing business as IP Venture, Inc.) is a private company headquartered in San Jose, CA. The firm offers services related to patent.

3M Innovative Properties Co. acquires and manages intellectual property right. It engages in the acquisition and ownership of the intellectual property rights to the products designed and manufactured by its parent company 3M Corporation. The company was founded on May 10, 1999 and is headquartered in Roseville, MN.

Sivantos Pte Ltd. manufactures and markets hearing instruments. Its products include receiver-in-canal (RIC) hearing aids, behind-the-ear hearing instruments, In-the-ear hearing instruments, pocket hearing instrument, hearing instruments for kids & teens, hearing protection, wireless accessories and handling videos. The company was founded in 1974 and is headquartered in Singapore.

Xi'an Hepu Acoustic Technology Co., Ltd., established on 2017-07-19, The scope of business includes acoustic and optical technology as well as related computers and the Internet,Electronics and Information Technology,Technology development of intelligent and automation equipment,transfer,consult,Production of services and related products,Install,System integration and import and export business,Sales and after-sales service;Acoustic and optical technology and related computer and Internet,Electronics and Information Technology,Security products related to intelligence and automation equipment technology,conference system,Research and development of public address systems and smart home products,Production,sales and installation,After-sales service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Natus Medical Denmark ApS develops, manufactures and markets computer-based audiological, otoneurologic and vestibular instruments. It offers hearing assessment, fitting systems, balance assessment, screening, software, and accessories solutions. The company was founded in 2001 and is headquartered in Taastrup, Denmark.

Algorkorea Co., Ltd. supplies hearing aid, hearing loss, digital, DSP chip. Its products include wireless, in the ear and behind the ear. The company was founded in 2004 and is headquartered in Seochogu, South Korea.

Yamaha Corp. engages in the manufacture and sale of musical instruments, audio equipment and electronic components. It operates through the following segments: Musical Instruments, Audio Equipment, and Others. The Musical Instruments segment provides piano, strings, percussion, wind, and electronic musical instruments. The Audio Equipment segment offers audio products, professional audio equipment, and telecommunications equipment. The Others segment deals with the electronic parts, automobile interior parts, factory automation equipment, golf equipment, and resort businesses. The company was founded by Torakusu Yamaha in November 1887 and is headquartered in Hamamatsu, Japan.

RhinoMetrics A/S, part of William Demant Fonden, is a Danish company. The firm provides financial intermediation services.