James B. Gillespie, III

James B. Gillespie, III is a corporate and finance attorney with more than two decades of experience advising clients on cross-border transactions, business negotiations, and regulatory compliance. Licensed in both New York and Paris, he has built his career at the intersection of U.S. and European legal systems, representing companies, investors, and financial institutions through complex corporate matters.

James began his career in Paris with the M&A teams at Fried, Frank, Harris, Shriver & Jacobson and White & Case, where he handled transactions and joint ventures valued in the hundreds of millions. In 2013, he co-founded Piton-Gillespie, a boutique multinational firm where he served as managing partner of the Paris office for seven years. In that role, he acted as external general counsel to startups, growth-stage ventures, and mid-market companies, guiding them through financings, acquisitions, restructurings, and strategic partnerships across Europe, the Middle East, Africa, and the United States.

At Omnus Law, James continues to focus on corporate law, mergers and acquisitions, banking and finance, real estate, employment matters in France, and international arbitration. His practice emphasizes practical, business-minded counsel for clients navigating international expansion and multi-jurisdictional frameworks. He has led teams of attorneys and professionals across numerous jurisdictions, ensuring seamless execution of transactions and dispute resolution.

Fluent in French and conversant in Spanish and German, James brings a global perspective and cultural fluency to his work. His unique mix of U.S. and European legal experience, combined with his dedication to anticipating client needs, makes him a trusted advisor to businesses and investors operating in a rapidly globalizing market.