| Associated Builders and Contractors
(ABC)-Baltimore Chapter |
| Associated Builders and Contractors
(ABC)-Chesapeake Chapter |
| Associated Builders and Contractors
(ABC)-Metro-Washington Chapter |
| Associated Builders and Contractors
(ABC)-Virginia Chapter |
| American Subcontractors Association
(ASA) - Baltimore |
| American Subcontractors Association
(ASA) - Delaware |
| Electric League of Maryland
(ELM) |
| Environmental Protection Agency
- "Green Lights Program" |
| Independent Electrical Contractors
- Chesapeake |
| International Association of
Electrical Inspectors (IAEI) |
| National Association of Lighting
Management Companies (NALMCO) |
| Several local trade organizations |
| Building Congress & Exchange |
