Oticon is a hearing aid manufacturer based in Copenhagen, Denmark. The company is a subsidiary of the Demant Group. It was founded in 1904 by Hans Demant, whose wife was hearing impaired. The company claims to be the world's second-largest manufacturer of hearing aids, and uses a management style known as "spaghetti organization" introduced by Lars Kolind under his leadership between 1988 and 1998.

Cochlear is a medical device company that designs, manufactures, and supplies the Nucleus cochlear implant, the Hybrid electro-acoustic implant and the Baha bone conduction implant.