Mark Parnes is assistant general counsel of Wilson Sonsini Goodrich & Rosati and assists the general counsel with risk-management, ethical, and other legal aspects of law practice at the firm. Along with the Pro Bono Committee, Mark also has assumed responsibility for the firm's pro bono program. Mark's responsibilities include oversight and administration of all pro bono cases, acting as the liaison between the firm and public interest legal groups and coordinating the interests of attorneys with pro bono legal opportunities. Mark also supports the board of the WSGR Foundation, the WSGR Charity/Community Events Committee, and the WSGR Green Team.

Mark presently represents a wide variety of nonprofits concerning corporate and litigation issues. Mark works with the following representative clients: ACE Charter School, Adolescent Counseling Services, Asylum Access, Blue Planet Network, Child Advocates, Children's Discovery Museum, D-Rev: Design Revolution, Family Connections, Fioli Center, Fresh Lifelines for Youth, InnVision Shelter Network, Living Goods, METTA Center for Nonviolence Education, New Teacher Center, Niroga Institute, Raising a Reader, Reading Partners, Silicon Valley Children's Fund, Silicon Valley Social Venture Fund, Sky's the Limit Fund, Sunnyvale Community Center, Sustainable Conservation, The Reach Institute, and Upwardly Global.