Matisse
Makes mono block and stereo amplifiers, pre-amplifiers, phono pre-amplifiers and cables.
http://www.signatureaudio.com/matisse.html

Advantech
Manufacturer of Solid State High Power Amplifiers (SSPA) and Low Noise Amplifiers (LNA) and associated redundancy equipment. Also manufactures broadband amplifiers and multiplexers.
http://www.advantech.ca/

Mapletree Audio Design
Manufacturers of stereo and multi-channel tube audio amplifiers, line pre-amplifiers, headphone/phono amplifiers and line router.
http://hollowstate.netfirms.com/

Bow Technologies
Manufacturer of stereo power and integrated amplifiers such as ZZ One and Wazoo, cd players and pre-amplifiers.
http://www.bowtechnologies.com/

Canary Audio
Tube amplifiers, pre-amplifiers, AC power cables and interconnect from San Jose.
http://www.canaryaudio.com/

Innersound
Manufacturer of hybrid electrostatic/dynamic loudspeakers and electronics such as amplifiers and pre-amplifiers.
http://www.innersound.net/

Cairn
cairn audio, designed and manufactured in France. Haute fidelite, concue et fabrique en France. Cairn
http://www.icairn.fr/

Manios Amplifiers
Custom hand-made high-end valve amplifiers. Greece.
http://www.m-amps.com

Melody
Manufacturer of valve power and integrated amplifiers, pre-amplifiers and a CD player. France.
http://www.melody-europe.com/

Amplifiers-R-Us
Microwave Amplifiers, Transmitters, Tubes & Power Supplies for Radar, EW, Communications & Laboratory
http://www.microwave-amplifiers.com/