Controls

Altera Corporation
Analog Devices, Inc.
Atmel
California Eastern Labs
Color Kinetics
Cypress Semiconductor
Freescale Semiconductor
NXP Semiconductors
OSRAM SYLVANIA
STMicroelectronics
Texas Instruments

LED Drivers

ICs:

Allegro MicroSystems
Analog Devices, Inc.
Diodes, Inc.
Fairchild
Infineon Technologies
International Rectifier
Intersil
Linear Technology
Micrel
National Semiconductor
NXP Semiconductors
ON Semiconductor
Semtech
Sharp
STMicroelectronics
Supertex
Texas Instruments

Modules:

Autec
CML Innovative Technologies
Cree, Inc.
Dialight Lumidrives
Endicott Research Group (ERG)
Linear Technology
Magtech Industries Corp.
OSRAM SYLVANIA
RECOM Power
Sharp
TDK Lambda

Power Supplies

Autec
Delta
Emerson
Lambda
Magtech Industries Corp
OSRAM SYLVANIA
RECOM Power

Light Sources

HB-LEDs:

Allegro Microsystems
Avago Technologies
Chicago Miniature Lamp (CML)
Cree, Inc.
Dialight
Everlight
Harvatek
Lite-On
OSRAM Opto Semiconductors
Sharp
Stanley Electric
TT Electronics/Optek Technology

LED Modules:

CML Innovative Technologies
Color Kinetics
Cree, Inc.
Dialight
Endicott Research Group
Everlight
Harvatek
OSRAM SYLVANIA
Stanley Electric
TE Connectivity
TT Electronics/OPTEK Technology

Non-Visible Light:

Everlight
Fairchild
Lite On
OSRAM Opto Semiconductors
Sharp
TT Electronics/OPTEK Technology
Vishay

Optics

Carclo Optics
Dialight L2 Optics
Fraen Corporation
Ledil

Thermal Management

Aavid Thermalloy
AVC America
TT Electronics/IRC

Supporting Components

AVX Elco
Epcos
Littelfuse
Molex
NIC Components
Panasonic
TDK
TE Connectivity