List of popular power line communication manufactures

[Magneto]

VIPA art of automation
Unikom-Ug - metering
ABB Utility Communications
ADD Semiconductor
Ascom PLC
Ambient Corporation
Amperion Inc
Ariane Controls
Broadband Horizons
Corinex
Current Technologies
devolo
DS2
Dimat
Dimonoff
EBA PLC
Echelon
EkoPLC
Electronic Intelligent Controls
Fiberbridge
GigaFast
Icosystel Icosystel Italy
Ilevo Schneider Electric subsidiary
InovaTech Asia PACific
InovaTech Group InovaTech worldwide
InovaTech EMEA
Intellon
PowerNet Communications
Powerline Publishing
Powerline World
Pancom A.S.
Mitsubishi
Main.net
Nettel
Panasonic
Poem Technology
SIPRO s.r.l. Energy Management, Metering, Home Automation, Integration with Wireless Sensor Networks
Defidev
RFL Electronics
SiConnect
Siemens
SPiDCOM, SPiDCOM a French PLC chipset developer
Sumitomo Electrics
Thomson SA
Watteco developer of the WPC low rate powerline standard
Yamar Electronics Ltd Innovator of DC powerline communication technology for automotive and aviation.
Xeline Ltd
PowerNet Ltd
Delta PLC