| ncqlp.org | National Council on Qualifications for the Lighting Professions |
| nalmco.org | InterNational Association of Lighting Management Companies |
| naild.org | National Association of Independent Lighting Distributors |
| ile.org.uk | Institute of Lighting Engineers |
| cie.co.at | International Commission on Illumination |
| nlb.org | National Lighting Bureau |
| ald.org.uk | Association of Lighting Designers |
| nema.org | National Electrical Manufacturers Association |
| rpi.edu | Lighting Research Center |
| ieee.org | Institute of Electrical and Electronics Engineers |
| lightforum.com | www.lightforum.com/ |
United States , Illinois , Park Ridge