Holoxica
HACO
GWU-Lasertechnik
GRINTECH
GratingWorks
Goyo Optical
FOHRENBACH
FOGALE
FINISAR
Heliotis
Finger Lakes
ficonTEC
FIBERPRO
HEADWALL
Fiberoptics Technology
Fiberoptic Systems Inc
GEViCAM
GenScope
GIGAPHOTON
Genia Photonics
Gamma Scientific
GALVOPTICS
Frontier Optics
Fresnel Technologies Inc