Bio

Paul Sieben, Head of O’Melveny’s Silicon Valley office, represents all stages of technology companies as well as numerous venture capital firms, other investors and market participants. Paul’s practice is focused on M&A, venture capital, private equity, early liquidity transactions, spin-offs, recapitalizations, public equity offerings and private debt transactions. Paul has served as lead counsel on more than 1,000 venture capital, angel and private-equity financings, more than 200 M&A transactions of all sizes, and a significant number of recapitalizations, public offerings and other transactions — many on behalf of, or opposite, major tech companies, venture capital and private equity firms. Paul’s practice stems from his relationships with a combination of early and late stage venture capital firms, large public technology companies and from his startup company practice, where he handles formation, founder-related matters, seed investments and venture capital financings for early-stage companies and then continues to represent them in various matters including later stage financings, M&A and corporate governance matters as they grow into larger private and public companies. His clients include companies in a wide range of technology markets, including fintech and crypto, security, software, autonomous vehicles, storage, gaming, cloud, big data and AI, media, social, clean technology, healthtech and biotech. Paul also has significant cross-border experience. Paul has been recognized by several publications for his work, including, Best Lawyers (which has listed Paul one of the Best Lawyers in America 2023), the International Financial Law Review 1000 (which has named Paul one of its leading lawyers for private equity), Legal 500 US (which has recognized him as a leading lawyer in its Venture Capital and Emerging Companies category, citing the “extraordinary support” he provides to clients and his ability to “produce very high-quality work on short timelines”) and Super Lawyers’ “Rising Stars” list of Northern California’s best young attorneys in the area of Mergers & Acquisitions.