NACD Ltd
Specialises in electronic door-entry access control products, including telephone controlled door entry.
http://www.telephoneentry.co.uk

Matrix Research Limited
Telephone (CATI), door-to-door, mall intercept, self-administered (such as employee surveys), fax and internet surveys.
http://www.matrixresearch.ca

Wayne-Dalton
Wayne Dalton is manufacturer of America's Safest Garage Door Systems for residential and commercial garage doors and garage door openers.
http://www.wayne-dalton.com/

Heart of England Limited
Manufacturer and supplier of hardware items for the Architectural Hardware Trade and DIY markets, including card frames, door closers, mirror screws and numerals Cardholder
http://heartofenglandltd.co.uk

Town & Country Garage Door
Town & Country garage door of Dallas services sales and repairs all residential garage doors and LiftMaster genie opener openers
http://garagedoorpartsales.com/

Glory Hardware Industry Co Ltd
Manufacture and exportation of hinges, door lever handles, door bolts, door holders and other builder's hardware.
http://www.gloryhardware.com/

The Lockbox Door Protector
Title Insurance, Mortgage Lending, Home Inspection and Real Estate Marketing Tool. Your company name at the front door.
http://www.lockboxdoorprotector.com

TeleWall Telecommunications Firewall
Helps secure telephone networks against abusive or unauthorized access and usage. Detects, logs, and controls all inbound and outbound telecom network activity based on user defined, automated security policies, protecting enterprise data networks from back-door modem access and other external attacks through the Public Switched Telephone Network working in conjunction with conventional data firewalls to secure the electronic perimeter.
http://www.securelogix.com/products/etm_overview.htm/telewall.htm

Creative Hardware
Custom residential and commercial door and cabinet hardware. Creative Hardware's exclusive design's are hand-crafted by a sculpture artist. Our unique designs create an unforgettable impression. Custom pieces are also available by working with the Creative Hardware design team.
http://creativehardware.com/

Quantometrix
Our telephone intercom systems deliver outstanding telephone services. Discount prices! Private telephone-to-telephone intercom from one room to another. Door entry answering from telephone handsets. Intercom between extension telephones in the home. Door entry access control by telephone.
http://www.quantometrix.com/