Morgan, Lewis & Bockius LLP, commonly known as Morgan Lewis, is a prominent American international law firm founded in 1873 in Philadelphia. Established by Charles Eldridge Morgan Jr. and Francis Draper Lewis, the firm initially focused on corporate and utility law, quickly building a reputation by representing major clients such as the United Gas Improvement Company (now UGI Corp.) starting in 1882. Morris Rex Bockius joined as an associate in 1883 and became a partner in 1898, leading the firm until his death in 1939. The firm adopted its current name in 1908 and has since expanded significantly, handling high-profile cases including railroad litigation under the Federal Employers' Liability Act and bankruptcy reorganizations for coal companies. Historically, it represented entities like the Reading Company, Baldwin Locomotive Works, Scott Paper, and several major banks, solidifying its status as a white-shoe firm in the legal landscape.

Today, Morgan Lewis operates as a global powerhouse with approximately 2,200 legal professionals across 31 offices in North America, Europe, Asia, and the Middle East. The firm provides comprehensive services in corporate transactions, litigation, regulatory compliance, and advisory roles across key industries including energy, finance, technology, life sciences, healthcare, retail, e-commerce, sports, and transportation. It serves a diverse clientele ranging from Fortune 100 companies—representing three-quarters of them—to startups and government entities, emphasizing both immediate challenges and long-term strategic goals. The firm's enduring client relationships, such as with UGI Corp., underscore its adaptability to evolving economic and legal environments, from traditional Pennsylvania industries to global commerce hubs.

Morgan Lewis maintains a strong presence in strategic locations, advising on complex matters like mergers, acquisitions, ESG investing, and AI infrastructure. Its UK affiliate, Morgan, Lewis & Bockius UK LLP, incorporated in 2012, exemplifies its international footprint. The firm continues to grow, focusing on innovation in legal services while rooted in its 150-year history of excellence in Philadelphia.