Coherent, Inc.

 Cumberland Optical (Optics)

 CVI Laser Corporation

 Daedal Positioning

 Edmund Scientific

 Karl Lambrecht (Polarizers)

 Laser Focus World

 LyqCryst Databse (liquid crystals)

 Melles Griot

 McPherson

 New Focus, Inc.

 Newport

 Optics.org

 Optiwave

 Rolyn Optics

 Spindler Hoyer (Optics, Mechanics)