The Hearing Instrument Manufacturers' Software Association (HIMSA) was founded at the beginning of 1993 with the objective of developing, marketing and supporting NOAH – one standard for integrated hearing care software.

HIMSA is a privately owned company, but it operates much like a consortium – all suppliers within the hearing care industry who are HIMSA members have a significant say in the running of HIMSA and in how the standard evolves.

Today, nearly 90 companies support the NOAH software standard. Nearly half of these companies are hearing instrument manufacturers, representing a market share of approximately 90 percent. These manufacturers have either released NOAH-compatible software or will do so in the near future.

HIMSA's single largest market is served by its U.S. subsidiary in Minneapolis, USA. Over 16000 copies of NOAH have been sold in the U.S. as of January 2008, and over 70 percent of hearing health care professionals in the US are NOAH users.

NOAH is also available in localized versions for over 20 markets. As of January 2008, total sales of NOAH amounted to more than 32000 units worldwide.

In 2002, HIMSA released NOAHlink, a hardware interface for programming hearing instruments. As of January 2008, over 27000 NOAHlink units have been sold.