Lawrence W. Keeshan

The Sierra Club Foundation is a public charity that provides financial support to the Sierra Club and other environmental organizations for charitable projects. They fund environmental projects which fall into the three general categories of public education, litigation, and training. The foundation was founded in 1960 and is located in San Francisco, CA.

PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY.

Gibson, Dunn & Crutcher LLP provides legal services. It offers services to labor, employment, entertainment and media law, toxic torts and other environmental services. The company was founded in 1890 and is headquartered in Los Angeles, CA.

Heller Ehrman LLP provides legal services. It offers litigation, business, and intellectual property services. The company was founded in 1980 and is headquartered in San Francisco, CA.