Chief Legal Officer
JD, Harvard Law School
Mark Casillas is the Chief Legal Officer of ViaeX Technologies. Mark Casillas has years of experience advising technology startup companies on business and finance matters, including company formation, founders shares, securities issuance, equity and debt finance, merger, acquisition, divestiture, restructure, strategic partner, joint venture, stock options, warrants, corporate governance, and other matters throughout the USA, Europe, Asia, and Latin America.
Mark has practiced law with large law firms headquartered in New York and in Silicon Valley. Prior to founding Casillas Law Group, Mark practiced law at Wilson Sonsini Goodrich & Rosati in Palo Alto, CA where he helped run one of Silicon Valley’s largest corporate groups. WSGR’s clients included 3,000 high technology startups and 600 publicly traded technology companies. Prior to WSGR, Mark practiced law at LeBoeuf Lamb Greene & MacRae in San Francisco. LeBoeuf was headquartered in New York, one of the world’s leading international law firms. He led transactions throughout the USA, China, Russia, Southeast Asia, Japan, India, Europe, Saudi Arabia, and Latin America, working with LeBoeuf’s offices in New York, Washington DC, London, Paris, Brussels, Moscow, Riyadh, and Almaty. He co-founded LeBoeuf’s first office in China, in Beijing.
Mark has served on the Board of Directors of numerous technology companies and businesses, a bank, a university, and non-profit organizations.
Mark received his BA (History) from Loyola Marymount University and his JD from Harvard Law School where he was Managing Editor of the Harvard CR-CL Law Review, the nation’s leading public interest law review. After Harvard, Mark clerked for the Honorable Oliver Seth, Chief Judge of the United States Court of Appeals, Tenth Circuit. Before moving to San Francisco, Mark began his career in international corporate and finance law in New York at Breed, Abbott & Morgan, an old Wall Street law firm.