Established in 2005, Desu Systems BV specializes in Flame and Gas Detection & Kitchen Fire Suppression and is the Master European Distributor and Channel Partner for Spectrex SharpEye Optical Flame Detection, SafEye Quasar Open Path Gas Detection, ESP Safety Vector and SGOES Point Gas Detection, Hansentek Spark & Ember Detection, Sensia Infrared Thermal Imaging (OGI) solutions and Buckeye Kitchen Mister restaurant fire suppression.

DetectFire is America's largest independent designer, manufacturer and distributor of advanced UL Listed Fire Detection System, and UL Listed Addressable Detectors & Alarm, Voice Evacuation & Communication Systems, and Controlled Access & Security solutions, UL Listed Agent Release Panel serving the global marketplace.

The Detroit Fire Department provides a safe environment for Detroit’s citizens and visitors through public education enforcement of fire codes and deployment of efficient emergency response resources.

Devon & Somerset Fire & Rescue Service is the largest non-metropolitan fire and rescue service in the UK.

DI Fire & Safety, Inc. is based in Danville, Illinois. DI Fire & Safety provides superior extinguisher and fire safety products coupled with unparalleled customer service and technical support. They provide fire extinguishers service, installation and maintenance, kitchen suppression systems and much more.

Diversified Fire & Safety, Inc. is a full service fire protection company providing the inspection, repair and installation of fire and life safety systems (fire extinguishers, kitchen suppression systems, clean agent suppression systems, fire alarm and fire sprinkler) throughout the Southeastern United States.

Diversified Protection Systems, Inc. (DPSI) is a client’s single source provider for design, construction, installation and service of specialty systems, which support and maintain critical operations. DPSI’s life safety and cooling specialty systems provide 24-hour, 7-day protection of clean rooms, computer rooms, and telecommunication facilities, as well as high asset value facilities such as museums, libraries and entertainment entities.

dmg events is a global exhibitions and publishing company, established in 1989 and operating with 13 offices around the world. With a vast portfolio of over 95 events annually, it attracts more than 425,000 visitors, positioning as one of the major players in the industry.

dnD Fire Protection Inc. is a full-service protection partner. Their team of expert engineers and technicians provides inspection, maintenance, repair, remodeling, and consulting services for the facility of fire safety equipment and systems.

Dolan’s Fire Protection Supply, LLC is a New Jersey-based wholesaler of fire protection equipment marketing exclusively to contractors who sell and service hand portable fire extinguishers and fire suppression systems.

Domestic Fire is known to supply, install, service, certify, repair, and maintain Backflow Prevention Systems, Wet Sprinkler Systems, Dry Sprinkler Systems, Deluge and Pre-Action Systems, Foam Systems, Fire Pumps, Kitchen Suppression Systems and Portable Fire Extinguishers.

Domestic Sprinklers offers a full design and installation package for fire sprinkler systems in new build or retro residential and domestic properties.

Don Brenton’s Fire Protection offer engineering design, project management and integrated logistics support services as part of a total procurement package for marine/shipboard and off-shore solutions. In addition, they provide a complete line of Conventional and Special Hazard Fire Detection and Fire Suppression Systems, along with portable fire, fixed fire and semi-fixed fire extinguishers.

Dorplan is a pioneering provider of 3rd-party accredited doorset solutions and ironmongery, committed to delivering high-quality products and exceptional service. With the introduction of SignetFire, Dorplan continues to innovate and set new standards in the industry, ensuring safety and reliability in every project.

The new combined Dorset & Wiltshire Fire and Rescue Service came into being on 1 April 2016, and now serves the local authority areas of Bournemouth, Dorset, Poole, Swindon and Wiltshire. They are ‘passionate about changing and saving lives’ – and are excited by the possibilities that are now open to them as a larger Fire and Rescue Service.

Dosteen is a doors and logistical solution provider and they cater to the Commercial, Industrial, Residential, Defence, Oil & Gas applications in the UAE and Oman. They provide Roller Shutters, Lateral sliding fire shutters, Sectional overhead doors, High Speed Panel Doors, Fire Curtains, Smoke Curtains, Blast proof doors and many more.

Double D Piping, LLC provides full service commercial, industrial and residential fire protection services to the southeast, holding unlimited licenses in five states.

Douglas City Volunteer Fire Department provides firefighting, protection and rescue services in the Douglas City region of California, USA.

Since 1886, Dr. STHAMER has been a family owned and managed company with headquarters - including R & D and production facilities - located in Hamburg, Germany. They supply synthetic and protein based fire fighting foam agents and wetting additives to the fire safety industry. Also part of their business is the production of foam concrete additives for the construction industry.

Dragon Fire & Security Systems offers a range of fire protection services in Cardiff and professionally handle everything, from consultancy and design to installation and maintenance. It is also an independent fire and intruder alarm expert.

The Dresden Volunteer Fire Department currently serves a 90 square mile response area in the Village of Dresden, Cass Twp., Jefferson Twp., and part of Madison Twp., in Muskingum County. They provide smoke detectors and address signs, fire safety equipment, and much more.

DSPA.nl is a global manufacturer of highly innovative aerosol generators, which can be used for fire extinguishing and suppression purposes. The products are used all over the world by governments, fire fighters, first responders and various industries. They also manufacture fire fighter tools and fire responder kits.

Dubuque Fire Equipment, Inc. is a provider of Fire Extinguisher Sales/Service & Installation and Fire Suppression Sales/Service & Installation.

At Duct Hygiene they specialize in the servicing of commercial kitchen extraction systems, fresh air ventilation and Fire Damper Inspection & Testing. They provide maintenance services to both blue chip and private sector clients throughout the UK, performing over 7,500 service visits each year maintaining building safety and compliance.