Founded in 1906, the Illuminating Engineering Society (IES) is the global authority on illumination. We offer professional development, publications, and standards to lighting experts worldwide, improving …

The IES is dedicated to improving the lighted environment by bringing together those with lighting knowledge, and by translating that knowledge into actions that benefit the public.

About the IES The Lighting Authority Established in 1906, the Illuminating Engineering Society is the recognized technical and educational authority on illumination. Our mission is to improve the lighted …

The IES Lighting Library Standards Collection Discover IES Standards through our cloud-based platform Our standards library is unique in the lighting industry because of our attention to quality, topic …

The IES offers a variety of grants and scholarships designed to support professionals and students in the lighting industry. These financial resources help foster the development of the next generation of …

We are the Portland, Oregon based section of the Illuminating Engineering Society, a not-for-profit organization dedicated to all aspects of the ART and SCIENCE of ILLUMINATION. The IES is the …

IES, The Lighting Authority, LD+A, Leukos, Street and Area Lighting Conference (SALC), Light for Life, and Lighting Library are registered trademarks of the Illuminating Engineering Society.

in Anaheim, California, 21-23 August 2025 for IES’ annual conference, IES25: The Lighting Conference, the preeminent conference for all things lighting, from research to design to technology and more—a …

Somos la sección con sede en Colombia de la Illuminating Engineering Society, una organización sin fines de lucro dedicada a todos los aspectos del ARTE y la CIENCIA de la ILUMINACIÓN. La IES es …

The IES Rocky Mountain Section is the local segment of the Illuminating Engineering Society. We are based out of Denver, Colorado and offer monthly community networking events, lectures, and …