Richard Sperber

The Associated General Contractors of America is a leading association for the construction industry, representing over 27,000 firms, including 6,500 general contractors and 9,000 specialty-contracting firms. The private company is based in Arlington, VA and has subsidiaries in the United States. The company's mission is to ensure the continued success of the construction industry. The CEO of the company is Stephen E. Sandherr.

Sperber Landscape Cos. LLC designs, builds, and maintains landscapes of resorts, corporate campuses, museums, and sports arenas. It offers design assist, water management, and golf course maintenance. The company was founded by Richard Sperber and is headquartered in Calabasas, CA.

The Urban Land Institute operates as a non-commercial research organization. It provides leadership in the responsible use of land and in creating and sustaining thriving communities worldwide. The company was founded on December 14, 1936 and is headquartered in Washington, DC.

Young Presidents' Organization, Inc. is a global leadership community of over 30,000 chief executives from 142 countries. The non-profit company is based in Irving, TX and has a global presence of subsidiaries in several regions. The company's mission is to help its members become better leaders and better people. The company was founded in 1950 by Ray Hickok, Khalid Mohamed Jassem Kanoo. Thayer Smith has been the CEO of the company since 2007.

ValleyCrest Cos. provided landscape services. It offers services to the corporate sectors. The company was founded by Burton Sperber in 1949 and was headquartered in Calabasas, CA.