Principals:

Les Yingling has over 41 years of design and management experience in the electrical construction industry. He has focused his career on creative and innovative lighting systems.  His work can be seen all over Denver, across Colorado and throughout the United States.

Kevin Yingling has 9 years of experience with IES Inc., including his internship during which he has completed multiple complex design projects.  He holds a BS in Architectural Engineering from the University of Colorado at Boulder and is a licensed professional engineer.

Dianne Yingling has been the Office Manager providing

administrative support for IES Inc. since its inception. Her duties were expanded to Chief Financial Officer in 2004 when she took over accounting duties for the company.

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