Doug Trimbach

Energy Optimizers USA LLC specializes in developing, engineering and implementing energy efficiency and energy savings projects for educational, governmental and commercial customers. The firm's services include controls and building automation, energy auditing, energy education programs, energy monitoring services, lighting retrofits and wind, solar and geothermal projects. The company was founded by Gregrey Scott Smith in 2009 and is headquartered in Tipp City, OH.

The Association of Energy Engineers promotes scientific and educational interest in the energy industry. The firm offers training seminars and learning programs. The company was founded by Albert Thumann in 1977 and is headquartered in Atlanta, GA.

The U.S. Green Building Council, Inc. is a non-profit organization that aims to transform the way buildings and communities are designed, built, and operated to create an environmentally and socially responsible environment. The non-profit company is based in Washington and was founded in 1993 by Steven Richard Fedrizzi. The organization provides a framework for creating healthy, efficient, and cost-saving buildings through the Leadership in Energy and Environmental Design (LEED) rating system. The LEED certification is available for virtually all buildings, communities, and homes. The organization offers various resources, including exam prep materials, to help professionals advance their careers in green building. Peter Templeton has been the CEO of the American company since 2021.