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American Lighting Association
The ALA is a trade association for manufacturers and distributors of residential lighting products in the USA and Canada.
http://www.americanlightingassoc.com/
Association of Lighting Designers
The ALD is a british organization for professionals from all fields of lighting.
http://www.ald.org.uk/
DALI
An organisation promoting the Digital Addressable Lighting Interface lighting control standard.
http://www.dali-ag.org/
DIAL GmbH
An independent service provider, created as an initiative of the lighting industry in the german language countries of Europe.
http://www.dial.de/
Institute of Lighting Engineers
The ILE is a professional lighting association in the UK, renamed from the former Association of Public Lighting Engineers.
http://www.ile.co.uk/
National Lighting Bureau
The NLB is a non-profit but industry sponsored US lighting information source, focusing on the quality of lighting.
http://www.nlb.org/
Professional Lighting And Sound Association
PLASA is a UK-based trade association representing member companies worldwide who work in the entertainment and venue technology fields.
http://www.plasa.org/
Society of Television Lighting Directors
The STLD offers information about television lighting, lighting directors and lighting equipment in the UK.
http://www.stld.org.uk/