| Cafco: Specializes in air filtration sales, service and technology. |
| Civacon: Couplings used in transport tankers, rail cars, containers, ships and processing plants to guard against petroleum or chemical spills, tank overfill and dangerous vapor emissions. |
| Clean Air Concepts: Provides air cleaners for offices, industrial applications, vehicle exhaust, and homes. |
| Environmental Enterprises, Inc.: Operates a hazardous waste treatment and storage facility offering turnkey lab pack, household hazardous waste, emergency response, and transportation services. |
| Environmental Quality Management, Inc.: Provides environmental engineering for waste management, air quality, waste water, remediation, health and safety audits, compliance, and site assessments. |
| Environmental Training Center: Presents over two hundred compliance and environmental training courses and seminars throughout the year. |
| Fernald Environmental Management Project: Information on the environmental cleanup of the FEMP at Fernald, Ohio. |
| Microbiological and Chemical Exposure Assessment Research Division: Conducts research to measure, characterize and predict the exposure of humans to chemical and microbial hazards. |
| Tipton Environmental International Inc.: Manufactures packaged wastewater treatment equipment and packaged air blower motor units for international customers. |
| United Air Specialists: Specializes in solving commercial and industrial environmental problems through a diverse product offering. |
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