Fulcrum Group of Companies
- Since the early 1980's the Fulcrum group of Companies have developed into the UK's leading source for the design, manufacture, supply and repair of voice communications equipment.
- http://www.fulcrum-group.co.uk/

GN Netcom
- Develops and manufactures handsfree communications products.
- http://www.gnnetcom.com/

Plantronics Inc
- A publicly held mobile headsets manufacturer headquartered in Santa Cruz, California.
- http://www.plantronics.com/

Walker Equipment
- Manufacturer of replacement telephone handsets.
- http://www.handset.com/

Universal Tele-Plaste
- Manufacturer and exporter of telephone headsets used in aviation, call centres and similar applications. Located in India.
- http://universalteleplaste.com/

Clarisys
- Manufacturer of internet telephones and speakerphones for VOIP applications.
- http://www.clarisys.net/

Chameleon Headsets
- Developes, manufactures and supplies telephone headsets for a variety of applications.
- http://www.chameleonheadsets.com/

The Boom
- Manufacturer and distributor of "the Boom" cellular phone headset featuring noise-cancelling microphone ideal for noisy environments.
- http://www.theboom.com/

Audiosears Corporation
- Manufacture standard handsets, headsets, and component parts for telephone applications. Product specifications, photographs and color charts.
- http://www.audiosears.com/

Altesys
- Manufacturer and supplier of headsets for a range of applications and related products.
- http://www.altesys.com

Acoustical Innovations
- Manufacturer and distributor of telephone headsets, amplifiers and telephones. Information on products and catalog request.
- http://ebm.aiheadsets.com/