National Association of Independent Lighting Distributors

The NAILD is an organisation supporting lighting distributors in the US with publications, training, and conferences.
http://www.naild.org/

Association of Lighting Designers

The ALD is a british organization for professionals from all fields of lighting.
http://www.ald.org.uk/

International Association of Lighting Designers

The IALD provides education and networking for architectural lighting designers.
http://www.iald.org/

Illuminating Engineering Society of North America

The IESNA is a large organization for the lighting industry in the USA, Canada and Mexico. Links to regional section sites.
http://www.iesna.org/

International Association for Energy-Efficient Lighting

The IAEEL is a global contact network and an information resource for energy-efficient lighting.
http://www.iaeel.org/

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/

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/

InterNational Association of Lighting Management Companies

The NALMCO is an organization of lighting management and related companies.
http://www.nalmco.org/

National Council on Qualifications for the Lighting Professions

The NCQLP is a US non-profit organization offering certification services for the lighting industry.
http://www.ncqlp.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/

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/

International Commission on Illumination

CIE is responsible for the international coordination of lighting related technical standards.
http://www.cie.co.at/ciecb/

CIBSE Society of Light and Lighting

A professional body for lighting in the UK, subsidiary of the Chartered Institution of Building Services Engineers.
http://www.cibse.org/index.cfm?action=showpage&PageID=68&TopSecID=11

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/

DALI

An organisation promoting the Digital Addressable Lighting Interface lighting control standard.
http://www.dali-ag.org/

Association of Swedish Lighting Designers

The SLF is an independent and non profit national organisation for professional lighting designers.
http://www.svenska-ljus.se/2ndlevel/english.htm

Professional Lighting and Sound Association of Germany

The VPLT is an Association of german manufacturers, distributors, suppliers, and service companies of the lighting and sound industry.
http://www.vplt.org/en/index.html

Illuminating Engineering Society of Australia and New Zealand

The IESANZ is the central organization for the local associations in the area.
http://www.iesanz.org/

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.org.uk/