Pullman Manufacturing Window Division
- Offers products for both industrial and historical applications.
- http://pullmanbalances.com/

Nora-M Co
- Manufacturers and wholesale representatives at the hardware market. Mortise locks, carpet bands, knob and leversets, cylindres, door hinges, padlocks and window and door accessories.
- http://www.nora-m.com

Gaurav International
- Manufacturer of brass builder's hardware, bathroom and door fittings, cabinet and furniture accessories.
- http://www.gaurav-international.com

Cal-Royal Products Inc.
- Door hardware, locksets, door closers, and dead bolts for both home and business
- http://www.cal-royal.com/

Door Scope Security
- Door peep product.
- http://www.doorscopesecurity.com

D&D Builders Hardware Co.
- Manufactures and exports door and window hardware. Located in Taiwan. OEM/ODM business is welcome.
- http://www.dnd.com.tw/

Vogo Incorporated
- Manufactures locks for vinyl casement windows. Includes product information and contact details.
- http://www.vogo.com

Swisco Inc.
- Hard to find, discontinued, and obsolete window and door parts. Offers an online catalog with product specifications, various instructional guides, and a window and door glossary.
- http://www.swisco.com

Centor
- Makers of external bifold hardware, keyed flush-mounting dropbolts, sliding door tracks
- http://www.centor.com.au/

Titon Hardware Limited
- Offers trickle ventilators and window fittings for domestic and commercial applications. Site includes news, contact information, and product information.
- http://www.titon.co.uk/

Blaine Window Hardware, Inc.
- Manufacturing and distributing obsolete, hard-to-find and current hardware parts since 1954.
- http://www.blainewindow.com/

Preferred Engineering Ltd.
- Engineers fenestration hardware systems for the window manufacturing market.
- http://www.preferred-eng.com/