| ncqlp.org | National Council on Qualifications for the Lighting Professions |
| nalmco.org | InterNational Association of Lighting Management Companies |
| ile.org.uk | Institute of Lighting Engineers |
| cc.az.us | Huachuca Astronomy Club |
| nlb.org | National Lighting Bureau |
| nema.org | National Electrical Manufacturers Association |
| darksky.org | International Dark-Sky Association (IDA) |
| ashrae.org | American Society of Heating, Refrigerating, and Air-Conditioning Engineers |
| naild.org | National Association of Independent Lighting Distributors |
| lightingdetectives.org | The Lighting Detectives |
| lightresource.com | www.lightresource.com/ |
United States , Texas , San Antonio