dhf is a not-for-profit trade association for companies associated with Locks & Building Hardware; Doorsets; Industrial Doors & Shutters; Domestic Garage Doors and Automated Gates.

Forensic Pathways offers unique data analysis solutions in the area of mobile phone forensics, criminal intelligence, due diligence/risk and business intelligence and is internationally recognised for taking a lead in the development of forensic products/services.

Gold Standard Security’s mission is to be recogniz\sed as a business of excellence within the security industry. Safety, security and a consistent delivery of the basics are the foundation of everything we strive for. Gold Standard Security will provide an outstanding quality service and value for every customer.

Invotech was formed in November 1995 and is dedicated to providing retail security solutions for the demands of present day loss prevention. As manufacturers, suppliers and installers and using the highest spec, state of the art technology, the company is able to offer quality systems at competitive prices.

Parking facilities manufacture & supply automatic barriers, automatic barrier systems, automatic bollards, automatic sliding gates, gate automation,canteliver gates, rising kerbs, turnstiles, speed gates, bi- folding speed gates, speed gates, barriers, manual barriers, height restrictors, speed ramps & access control to name a few. Parking Facilities Limited is today one of the UK's premier manufacturers of Parking Control Equipment.

Phaedrus Systems is a UK specialist in supporting engineers of embedded safety-critical projects. Tools include requirements tracking, estimation software,compiler validation reports, SIL3 RTOS, and reliability/failure software. They have consulted on applications ranging from automotive and rail to aerospace.

Signal Securities Ltd is a specialist in security alarms, installation and maintenance. The company has been providing security solutions to both domestic and commercial clients for over 20 years. Signal Securities Ltd. services range from security alarms, alarm systems, CCTV security systems, burglar alarms, access control, and fire alarms.

The Door & Hardware Federation represents all the key manufacturers and installers of industrial, commercial, pedestrian and garage doors and powered gates, as well as manufacturers of locks, building hardware and architectural ironmongery.