Silco Fire & Security is family owned and managed fire safety services business, established in 1959 with offices in Cincinnati, Dayton, Columbus, Akron, and Cleveland. They provide a range of services, such as Fire Extinguisher Service & Inspection, Sprinkler Systems, Fire Pumps & Backflows, Fire Alarms & Detection Systems, Special Hazard Suppression Systems, Exit & Emergency Lighting, Restaurant Suppression Systems & Security Systems.

Tyco SimplexGrinnell provides a comprehensive array of fire alarm, fire sprinkler, fire suppression, integrated security, emergency communications, sound, and nurse call systems and services.

Simpson Security is a Security & Life Safety Contractor. They specialize in Division 27 & 28 work which includes Fire Alarm, Communications, Security, and Nurse Call Systems.

SK FireSafety Group is composed of a well-balanced and diverse range of experienced companies that specialize in one area of expertise, protecting people and investments against fire and other accidents. They offer fire protection solutions for high risk markets such as Oil & Gas and maintenance of fire extinguishers, hose reels, emergency lighting, fire detection and extinguishing systems.

SHARKS range of innovative, new generation fire fighting products and systems are designed, manufactured and installed by Smith & Sharks Projects (India) Pvt. Ltd., a company promoted by a team of India's renowned fire engineering experts with over 40 years of outstanding performance in the field of Fire Protection Engineering and related Research & Development activities.

Smoke Control Association (SCA) members lead the way in promoting and enhancing the design, manufacture, installation and maintenance of life safety smoke ventilation systems and ensuring only independently tested and certified products are installed in buildings.

Snido brings to the market products that combine experience with modern technology to offer reliable Life Safety Systems featuring multiple communications pathways for programming, networking and maintenance tracking. Their Intelligent Fire detection line includes – smoke, heat, flame, multi sensor, smart control panels, gas detection – toxic and explosive, emergency lighting, smart interfaces and integration with 3rd party devices.

Solid Responder is a team of emergency rescue personnel committed to providing the response community with equipment designed, developed, tested, and proven to enhance the ability to succeed.

Founded in 1974, .Solid State Security Ltd has developed into the fastest reacting fire & security company. They are one of the UK’s leading specialist electrical contracting companies with over 35 years'​ experience in the design, supply, installation, commissioning and maintenance of life-safety systems including fire alarms, security systems, emergency lighting, CCTV, voice alarm systems and call systems.

Solutions for Systems is a Northern Ireland-based independently owned systems solutions firm that offers expertise in Fire, Security, Electrical and Satellite & Aerial Communication Systems.

South King Fire and Rescue is a fire district rich in its history. The fire district covers nearly 41 square miles and protects nearly 150,000 citizens. The district is made up of what used to be five former fire districts.

SMFR provides emergency and prevention services to approximately 540,000 residents and thousands more who come into our communities to work. They provide Firefighting, Paramedic, Emergency Medical Services, Aircraft Rescue, Hazardous Materials Operations, Water Rescue and Recovery, and much more.

Having a dependable and up-to-date fire alarm system is essential. If the fire alarm system needs maintenance, contact South Sound Fire & Security. They can resolve issues big and small, and they can also provide with regular inspection services.

Southbourne Electrical services Ltd provides design and build electrical installations, electrical fit outs to CAT A and CAT B, electrotechnical design and installation, EICR and PAT testing, CAD work, Fire alarm systems, Data cabling, Emergency lighting, and UPS and generator installations.

Southeast Extinguisher Service provide reliable and timely service work in the fire and life safety industry. Their goal is to provide fast, professional service at competitive prices. They provide hand held extinguishers, wireless alarms, wheeled extinguishers, fire suppression tools and much more.

Southwest Fire Protection Company was founded in 1960 by an experienced group of industry professionals to design and install the finest and most reliable life and property protection systems available. They provide system design, installation and inspection work for fire safety and protection systems.

Sovereign Alarms Ltd designs, supplies, installs, and maintains safety and security products to protect you from damage to property, fire, and theft. Their products include fire and intruder alarms, emergency lighting, CCTVs, access control, fire extinguishers as well as risk assessments and maintenance checks on existing safety and security devices.

Spartan Emergency Response vehicles are well known for safety, quality, durability, aftermarket product support, and first-to-market innovation. The company operates facilities in Michigan, Pennsylvania, South Dakota, and Nebraska.

Special Fire Systems specializes in the distribution, installation, and servicing of clean agent fire suppression systems, fire detection, and fire alarm systems, with an emphasis on special hazards. They also provide services such as installation of fire products, fire extinguisher training, fire products testing, inspection of fire products, system monitoring, consultation and much more.

Specified Technologies Inc. is a pioneer in developing innovative fire protection systems that help stop the spread of fire, smoke, and hot gases. For 30 years now, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems.

Established in 1984, Specifire is a renowned installer, services and contractor for fire sprinklers, detectors and automatic extinguishing systems.

Sphinx Sh.p.k. provides a range of services and products that includes intrusion burglar and fire protection systems. From simple systems to more complex including voice alarm system, Sphinx designs, implements, and maintains the systems respecting its commitments towards its certifications and manufacturers policies. The company's products are compliant with the European Standard EN:54 series which is also the Albanian standard.

Canadian pioneer in occupational health and safety products and services, SPI Health and Safety proposes comprehensive and specialized solutions which encompass product and technical services, fire protection services, consulting services and training.

Spokane Valley Fire Department has been serving the cities of Spokane Valley, Liberty Lake, Millwood, and parts of unincorporated Spokane County, including the communities of Otis Orchards, Pasadena Park, and the area surrounding Liberty Lake.