There are several options for buying WiMAX or microwave / mmwave radios in North America and Europe. Most of these are relatively well-established players, with a quality product.
Canada – mmwave Radios (WiMAX Radios)
DragonWave
Novatel Wireless
Redline Communication
RIM
Sierra Wireless
Wavesat Inc.
United States manufacturers or WiMAX and mmwave Broadband radios
Airlinx
Airspan Networks
ApaceWave
Aperto Networks
Cisco Systems
Intel
Motorola Solutions
China – mmwave Radios
ZTE Corporation
Finland – mmwave Radios and Mobile infrastructure
Nokia
Nokia Siemens
France
Alcatel Lucent
Israel – WiMAX equipment
Alvarion
Korea
LG Electronics
LG Nortel
Samsung
Sweden
Ericsson
Taiwan
HTC Corporation