Kate O’Sullivan


Kate O’Sullivan is the General Manager of Digital Diplomacy within Microsoft’s Corporate, External, and Legal Affairs Department.

In this role, Kate leads a team focused on Microsoft’s global cybersecurity policies that aim to protect people, organizations and societies in cyberspace including through the advancement of a “Digital Geneva Convention”, and by protecting democratic processes and institutions.

Prior to working at Microsoft, Kate was managing director at the global communications and public affairs consultancy, Burson-Marsteller, heading up their Corporate Practice in San Francisco. Earlier in her career, Kate was an executive founder and vice president of marketing and communications at SEVEN Networks—a leading mobile applications company. Before SEVEN, Kate was vice president and managing director at Ogilvy Public Relations Worldwide, and managed Ogilvy’s Silicon Valley technology practice. At Ogilvy, Kate was a recipient of the Ogilvy Chairman’s Award for Vision and Values, and the Ogilvy Professional Achievement in Technology Award.

Kate is currently is on the Board of Directors of 826 National and member of IESE Business School’s US Advisory Council. Kate graduated from University of Colorado in Boulder, Colorado, USA with a degree in International Relations.