Alternatives in Engineering (AIE) is an established Fire Protection Engineering firm with extensive experience in new and remodeled retail, grocery, restaurant, commercial, and light industrial facilities. AIE Inspection Services provides an efficient, cost-effective nationwide solution to handle all of the inspection, maintenance, compliance, and emergency service needs for the fire protection systems of retailers nationwide.

Central Safety and Fire is one of St Louis' largest fire protection specialists. CSF is a full-service company that designs, installs, repairs, services, and inspects a wide variety of fire suppression systems.

Gateway Fire Protection is the standard in the industry when it comes to competency and extraordinary service in fire protection. They provide fire sprinkler systems, retrofit of existing structures, inspection and testing of existing systems, down to fire extinguishers and even emergency exit lighting and much more.

Hood Technologies Fire Safety Inc. provides Hood Fire Suppression systems, fire protection service, fire extinguishers, and much more. They also provide commercial kitchen hood and exhaust cleaning as required by N.F.P.A.

KENCO is a top supplier of fire, law enforcement, safety, emergency medical, rescue and homeland security equipment. They also provide fire extinguisher and fire extinguishing system equipment sales and service.

Marmic Fire & Safety Co. is a full service fire protection company that is renowned for providing fire protection equipment and services, security systems, and personal protection equipment and gear (PPE) for fire safety and protection applications. They equip retail, medical, commercial, and industrial establishments with hazard analysis, fire and personal safety products, fire suppression installations, and inspection services.

The Osage Beach Fire Protection District (OBFPD) provides fire suppression, first response medical, urban search and rescue, fire prevention inspections/permits, public fire education programs, emergency preparedness planning, fire cause and origin investigation and other services based on community needs.