LG Optical
Glass filters and lenses, from high to low volume, custom and standard designs, glass machining and glass blowing.
http://www.lgoptical.co.uk/

Glass-Supply.com
Glass Supply offers a wide selection of supplies, tools, and equipment for glass blowers and lampworkers. Our catalog includes torches, tools, color
http://www.glasssupply.com/

Vitri-Forms Inc.
Vitri-Forms, custom and specialty glass products for the consumer, science and industry. Free consultation on your needs, contact us today.
http://www.vitriforms.com/

Glasatelier Saillart
All laboratory supplies for your lab. Search our online shop or ask for a free copy or our catalogue. We have a glassblowing shop for custom fabrication of quartz and borosilicate glassware.
http://www.glasatelier-saillart.be/English/english.html

Yankee Glass Blowers Inc.
Scientific Glassblowing of Pyrex, quartz. Produce glass to metal seals such as Kovar. Fabricate and repair scientific apparatus.
http://www.yankeeglassblower.com/

Monash Scientific Glass Blowing Services
manufacturer of Pyrex and quartz scientific glass apparatus
http://www.monashscientific.com.au/

Lang Scientific Custom Glass Blowing
Manufacture of scientific glass ware for research and development. Repair of laboratory glassware.
http://www.angelfire.com/tx3/langscientific/customglassblowing.html

Hazelglas
Fabrication of custom laboratory glassware and glass blowing classes.
http://www.hazelglas.com/

Verre Labo Mula
Fabricant de matériel de laboratoire en verre sur mesure et distributeur de l'ensemble des produits et matériels de labo.
http://www.verre-labo-mula.fr/

Okandan Glass
Okandan Cam San. Ve Tic. A.S.
http://www.okandanglass.com/