The Clayton Fire Company is an all volunteer fire company that was founded in 1891 and has been serving the area since then. The fire company is made up of 146 members of whom approximately 70 are active members. The company is made up of several different types of membership to fit every need.

CNOOC Safety Technology Services Co., Ltd. is a professional global provider of HSE technology and engineering services with over 238 employees providing tailored QHSSE solutions for oil & gas industry, including R&D of safety and environmental technology QHSE assessment and evaluation, QHSE management consultancy, QHSE supervision and survey, security products and services, fire prevention and fighting, & explosion-proof devices.

Cobb County Fire and Emergency Services provides superior fire, rescue, and emergency services to the citizens and visitors of Cobb County in a proficient, professional, and compassionate manner. They continuously promote life safety within the county by practicing prevention, planning, education, and training.

CCI is a Fire Protection Engineering and Life Safety Consulting firm that adds value to the projects for which they are retained by providing the highest quality, most creative state–of–the–art concepts, solutions, and engineered designs.

Cofessco Fire Protection is West Michigan’s largest fire protection company. Cofessco Fire Protection personnel are trained, tested, certified and licensed. They provided Fire sprinkler systems, Fire alarm systems, Kitchen exhaust hood fire suppression systems, Special hazard fire suppression systems and much more.

Columbus Fire & Safety is a diverse fire protection and safety company that is committed to providing its customers products and services necessary to meet their fire protection and safety requirements. The company's professional staff performs commercial and industrial installations, inspections, repairs, and service for building fire alarm systems, special hazard fire suppression systems, and kitchen vent-hood fire suppression systems.

Comelit Group UK specializes in designing and manufacturing video entry, video surveillance, anti-intrusion, home automation, access control and fire protection systems.

Complete Fire Protection is based in the Dallas-Fort Worth metroplex and proudly serves all major Texas markets. They provide quality water based fire protection systems, Fire Sprinkler Systems, Inspection, Install, Service, Annual Inspections, 24 Hour Emergency Service, and Fire Sprinkler System Retrofits.

Complete Fire Protection, Inc. is a full service and licensed fire sprinkler company helping thousands of commercial, industrial and residential building owners located in the Southwest. In addition to the installation of new sprinkler systems the company handle all repairs, tests, and inspections for existing facilities to meet all the users insurance requirements.

Located in Attleboro, MA, Comtran is a provider of specialty cable and system solutions for a variety of applications, including structured cabling, fire safety, circuit integrity, and transit communications.

Conair Group Inc. (Conair) is a pioneer in specialty aircraft operations, delivering a comprehensive range of purpose-engineered, aerial firefighting, multi-role aircraft, and services worldwide. Conair manufactures modified RJ85, Q400M, and Q400AT aircraft for use in aerial firefighting and transporting people/cargo in support of emergency response operations.

Confires is a renowned fire protection company in the US regions of New Jersey (NJ), Delaware (DE) and Pennsylvania (PA).

Connecticut Fire Equipment, Inc. is a full service fire protection company. The company provides fire extinguishers testing and training, fire sprinklers and sprinkler system, fire pumps, fire suppression systems, fire alarms and fire alarm monitoring training services.

At Continental Fire Sprinkler Company, the company's mission is to save lives and protect property. Services include fire suppression, installs, services and inspection of fire protection systems with the highest commitment to customer safety and satisfaction.

Controlled Ltd has evolved into a professional systems Integration organization covering electronic security, fire and communications disciplines. They provide all electronic security and communication applications including Networked based Lenel Access Control, Genetec CCTV, Commend IP Door entry, Vesda Aspirated Systems and monitored Fire and Intruder Alarm systems.

Cooke & bern provides fire stopping and passive fire protection. They provide private and commercial building services, as well as a specialist passive fire stopping service. The fire stopping measures are designed to restrain the growth and spread of fire, allowing the building occupants time to escape safely.