Apogee Enterprises, Inc.
- Designs, engineers, manufactures window systems for commercial, institutional, detention and security buildings. Bloomington, Minnesota. (Nasdaq: APOG)
- http://www.apog.com/

Cambria Corporation
- Specializes in alarm sensors for water leaks and door openings for military and industrial applications.
- http://www.cambriasensors.com

Roll-a-way
- Manufactures storm and security shutters for windows, sliding glass doors, balconies, and screened enclosures. Authorized dealers, technical specifications, and locations. Based in Saint Petersburg, Florida.
- http://www.roll-a-way.com/

Birkdale Doors
- Manufacture and installs security roller shutter and garage doors for the domestic and commercial markets. Product photos available. Located in Scunthorpe, North Lincolnshire, England.
- http://birkdaledoors.co.uk/

ACE/Security Laminates
- International manufacturer of safety and security window films.
- http://www.smashandgrab.com/

EurexShutters
- Business beautification and protection.
- http://www.eurex.com/

Ialco Serramenti srl
- Italian supplier of security windows and frames. Includes a portfolio of completed projects.
- http://www.ialco.net/

Der Tzone Industrial Co., Ltd.
- Manufacturer of polycarbonate sheet, bullet resistant laminate, and safety windows.
- http://www.derstrong.com.tw/

Screenmobile
- Manufacture and install aluminium and steel security doors.
- http://www.screenmobile.com/

Metro Door
- Commercial security closures including security grilles, shutters and service doors.
- http://www.metrodoor.com/

Kikgard
- Doorjamb protection to prevent forced enty.
- http://www.kikgard.com/

SwissShade and Security, Inc.
- Supplier explosion proof windows.
- http://www.swissshade.com/fauser_index.htm

Roll Shutter Solutions
- Sells and installs rolling aluminum security and storm shutters.
- http://www.rollshuttersolutions.com/

Global Security Australia
- Company supplies and installs security doors, monitors and CCTV.
- http://www.globalsecurity.com.au/

Best Lock Corp.
- Designed and supplies access control systems and security.
- http://www.bestlock.com/

B.E.A., Inc.
- Sensors for automatic doors.
- http://www.beainc.com/

Dor-O-Matic Automatic Door Systems
- Automatic door manufacturers.
- http://www.doromatic.com/