ZhongShan Grand Coating Glass Co. Ltd.
Chinese manufacturers specializing in design and supply of architectural glass. Varieties include coated, tempered, insulating, laminated, and curved glass.
http://glasslam-asia.com/orientop/zhongshan/zhongshan.html

Adtec Enterprises
Supplier of insulating tube, adhesive tape, mica sheet, mica tape for cables, epoxy glass laminate, insulating materials, tape, silicone tape, pallet stretch film and many others.
http://www.adtec-ent.com/

Vetroseal Glass Specialties Inc.
Manufactures all types of decorative door lites as well as insulating glass units for the window industry.
http://www.vetroseal.com/

Corning Glass
FOAMGLAS® thermal insulation for all applications: roofs, roof top car parks, foundation and floors, underground walls, green roofs, terraces, facades
http://www.foamglasinsulation.com/

Oldcastle Glass
Oldcastle Glass® is North America’s largest glass fabricator and leader in the design and manufacture of fully-integrated building envelope systems.
http://www.oldcastleglass.com

Lopour & son
Production of composite tubes and products based on glass-carbon-aramid-epoxy. Insulating poles for maintenance of overhead power, telecommunication or traction overhead lines (de-icing, manipulation), current collectors for trolleybuses, insulating tubes and rods, components for ultra-light aeroplanes. [Czech republic]
http://www.lopour.cz

J.E. Berkowitz
Producer tempered, insulating and spandrel glass.
http://www.jeberkowitz.com/

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

Custom Glass Corporation
Custom Glass Corporation offers Custom Fabricated Glass, Specialty Glass, Bent Glass, Bulletproof Glass, Silk Screened Glass, Security Glass, Transportation Glass, Bullet Resistant Glass, Safety Glass, and much more
http://www.customglass.com

NGF Canada Ltd
Manufacturer of specialised glass fibre, rubberized glass cord and glass flake. Owned by NGF (Europe), part of NSG (Japan). E-glass, K-glass and U-glass
http://www.ngfcanada.com