BY Dental
ByDental srl, sbiancanti dentali, prodotti per lo sbiacamento dentale. Pistoia, Toscana, Italia
http://www.bydental.com/

Whiteness
Explanation of applying fluorescent whitening agents to increase perceived whiteness.
http://mitglied.lycos.de/whiteness/

Raghunath Dye-Chem
India. Manufacaturers of optical whitening agents for the paper, textile and detergent industries. Chemical properties and features on PDF files. Part of the RN Group.
http://www.raghunathdyechem.com/

Alconic Srl
Argentina. Importers and distributors of reactive, acid, direct, vat and disperse dyestuffs for yarn and textile dyeing. Also, optical whitening agents. English and Spanish.
http://www.alconic.com.ar/

Kuan Chuan Chemical Industries Ltd.
Manufacturer of dye chemical, fluorescent whitening dye (OBA,) dyestuff, optical brightener (textile auxiliary agent) and sunpeitin.
http://www.kuanchuan.com/

Textile Colour and Chemical
synthetic organic dyestuff for textile dyeing and printing, optical whiteing agents for paper, manufacturer and exporters of dyes and dye intermediates, chrome dyes, metal complex dyes, acid dyes, reactive dyes, direct dyes, pigments.
http://www.textilecolour.com/

Image repair
Restore damaged photographic images such as blemish removal, teeth whitening, softening wrinkles, and slimming, erase people from image.
http://www.imagerepair.net

Discus Dental
Discus Dental.
http://www.discusdental.com/

Wuhan Time Technology Co., Ltd
Wuhan Time Technology Co., Ltd. is located in Wuhan City, which is the most important transportation pivot and industrial base in China.
http://www.chemfba.com/

Keyne Image
Producer of imaging software tools for dentists, dental vendors, researchers and hardware manufacturers including software for X-Rays, intraoral cameras, and tooth whitening.
http://www.keyneimage.co.uk