The Silicon Valley Leadership Group, founded in 1978 by David Packard of Hewlett-Packard, represents more than 400 of Silicon Valley's most respected employers on issues, programs and campaigns that affect the economic health and quality of life in Silicon Valley, including energy, transportation, education, housing, health care, tax policies, economic vitality and the environment. Leadership Group members collectively provide nearly one of every three private sector jobs in Silicon Valley and have more than $3 trillion in annual revenue.