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| Fibertec Environmental Services Offers laboratory services, geoprobe services and asbestos/environmental hygiene services, mobile lab services |   |
| OP-TECH Environmental Services Provider of demolition, asbestos removal, lead removal and environmental cleanup services for small- and large-scale projects. |   | |
| Atlantic Environmental Provider of environmental, indoor air quality, health and safety services in hazardous waste, industrial hygiene and permits. |   | |
| FAST-TEK Environmental services firm providing water well drilling, asbestos abatement and hazardous substances removal. |   | |
| Boelter and Yates Environmental consultants providing services in asbestos management, hazardous waste management, mold and mycotoxin investigations, indoor air quality management and risk assessments. |   | |
| Woodard & Curran Inc. Environmental consulting firm of over 450 environmental engineers, and support personnel concentrating in the interrelated disciplines of industrial waste, scientists, operations specialists, hazardous waste and support personnel concentrating in the interrelated disciplines of industrial waste, hazardous waste, environmental studies and permitting. |   | |
| Environmental Resource Center Offers environmental consulting services in the areas of hazardous waste management, toxic substances, impact assessment , water effluents, pesticides, air emissions and compliance auditing. |   | |
| Refuse/Environmental Systems Environmental management company providing services in solid and hazardous waste management, heavy metal soil remediation, wastewater treatment , recycling, odor control, consulting and composting. |   | |
| Environmental Protection Services Company (EPSCO) Performs asbestos and lead abatement and hazardous waste cleanup operations for a wide range of commercial, industrial, institutional and residential customers. |   | |
| Lang Environmental Environmental contracting service firm offering asbestos removal, hazardous materials cleanup, lead paint abatement and demolition and dismantling services. |   | |
| Enviro Safe Air (ESA) Contractors working in asbestos removal, water and soil remediation, lead abatement and other environmental services. |   | |
| HydroQual Environmental engineering and science firm offering services in ecological risk assessment, water and wastewater treatment, watershed management, marine circulation, hazardous waste management and wastewater treatment, hazardous waste management, permitting and more. |   | |
| Precision Works Environmental cleanup company for the eradication of asbestos, toxins, lead and other contaminants. |   | |
| A.H. Reppert & Associates Specializes in asbestos, lead, hazardous materials and occupational safety. Provider of environmental consulting and safety training. |   | |
| Specialty Systems of Ohio (SSI) as well as the installation of new insulation. Full-service abatement contractor specializing in the removal of asbestos, lead and microbial contaminants. |   | |
| EnSafe Inc. The company provides nationwide assistance in establishing and maintaining environmental, safety and health programs. Services include impa. Provider of services relative to hazardous materials, hazardous waste and other environmental services. |   | |
| SCS Engineers Parent/holding company with a high-tech unit involved in hazardous substance remediation services, solid waste landfill maintenance services, landfill gas related mainte. Provider of hazardous and solid waste engineering and consulting services. |   | |
| APC Contractors Provider of hazardous materials abatement services to public and private entities, including lead, asbestos and contaminated soil. |   | |
| Seattle Tank Removal Environmental firm offering excavation, filling, cleaning and installation of commercial/residential contaminated oil/fuel storage tanks. |   | |
| New Age/Landmark, Inc. Provides mobile onsite testing capabilities for organic and inorganic compounds. |   | |
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