| LEED AP Neighborhood Development | Green Business Certification Inc. |
| Building Energy Modeling Professional Certification | American Society of Heating, Refrigerating and Air-Conditioning Engineers |
| Certified Planning Engineer | American Academy of Project Management |
| Certified Waste Management Professional | National Registry of Environmental Professionals |
| Certified Practitioner in Energy Management Systems | Association of Energy Engineers |
| ISO 50001 Lead Auditor | Association of Energy Engineers |
| Certified Environmental Professional in Training | Academy of Board Certified Environmental Professionals |
| Municipal Waste Facility Operator | American Society of Mechanical Engineers International |
| Managing Integrated Solid Waste Management Systems | Solid Waste Association of North America |
| Certified Ground Water Professional | National Ground Water Association |
| Board Certified Environmental Engineer - Hazardous Waste Management | American Academy of Environmental Engineers and Scientists |
| Certified Carbon Reduction Manager | Association of Energy Engineers |
| LEED AP Homes | Green Business Certification Inc. |
| Certified Dangerous Goods Professional | Institute of Hazardous Materials Management |
| LEED AP Building Design + Construction | Green Business Certification Inc. |
| Certified Healthcare Environmental Services Professional | American Hospital Association |
| Certified Restorer | Restoration Industry Association |
| Managing MSW Collection Systems | Solid Waste Association of North America |
| Certified Energy Auditor | Association of Energy Engineers |
| Certified Hazard Control Manager | International Board for Certification of Safety Managers |
| WSO - Certified Governmental Safety Specialist | World Safety Organization |
| Managing Construction & Demolition Materials | Solid Waste Association of North America |
| Managing Recycling Systems | Solid Waste Association of North America |
| Manager of Landfill Operations | Solid Waste Association of North America |
| Board Certified Environmental Engineer - Radiation Protection | American Academy of Environmental Engineers and Scientists |
| Board Certified Environmental Engineer - Solid Waste Management | American Academy of Environmental Engineers and Scientists |
| Board Certified Environmental Engineer - General Environmental Engineering | American Academy of Environmental Engineers and Scientists |
| Qualified Environmental Professional | Board for Global EHS Credentialing |
| Environmental Professional In-Training | Board for Global EHS Credentialing |
| Registered Environmental Professional | National Registry of Environmental Professionals |
| Diplomate, Port Engineering | Academy of Coastal, Ocean, Port & Navigation Engineers |
| Household Hazardous Waste & CESQG Collection Operations | Solid Waste Association of North America |
| Superior Energy Performance | Association of Energy Engineers |
| Certified Mold Professional | Restoration Industry Association |
| Certified Sustainable Development Professional | Association of Energy Engineers |
| High-Performance Building Design | American Society of Heating, Refrigerating and Air-Conditioning Engineers |
| Certified Stormwater Manager | American Public Works Association |
| LEED AP Interior Design + Construction | Green Business Certification Inc. |
| Board Certified Environmental Engineer - Environmental Sustainability | American Academy of Environmental Engineers and Scientists |
| Certified Environmental Professional | Academy of Board Certified Environmental Professionals |
| Certified Hazardous Materials Manager | Institute of Hazardous Materials Management |
| WSO - Certified Governmental Safety Officer | World Safety Organization |
| WSO - Certified Governmental Safety Technician | World Safety Organization |
| WSO - Certified Governmental Environmental Officer | World Safety Organization |
| Registered Environmental Manager | National Registry of Environmental Professionals |
| Certified Environmental Systems Manager | National Registry of Environmental Professionals |
| Registered Environmental Property Assessor | National Registry of Environmental Professionals |
| Board Certified Environmental Engineer - Industrial Hygiene | American Academy of Environmental Engineers and Scientists |
| Board Certified Environmental Scientist | American Academy of Environmental Engineers and Scientists |
| Certified Energy Manager | Association of Energy Engineers |
| Certified Energy Procurement Professional | Association of Energy Engineers |
