David Schellhase is a Ballistic Entrepreneur-in-Residence. He brings over 25 years of legal and operational leadership with a track record of scaling high-growth technology companies and guiding them through pivotal transitions. He has served as General Counsel at six companies, including Salesforce and Groupon during their IPOs, and most recently at Slack Technologies, where he also led teams responsible for legal, privacy, corporate development, business development, public affairs, the Slack Fund, and Slack for Good. He led Slack through their IPO and their $28B sale to Salesforce. He also spent the past two years as Of Counsel at the law firm of Sullivan & Cromwell and co-taught a course last term in Stanford’s School of Management Science and Engineering. Additionally, he serves as an advisor to Airtable and Webflow.