Harmann Singh is a member of Orrick’s Supreme Court and Appellate practice. He represents clients in high-stakes constitutional, administrative, intellectual property, and commercial disputes across industries including technology, finance, and life sciences. His experience includes representing some of the world’s largest companies in trade secret misappropriation cases, patent and copyright disputes, challenges to federal and state laws and regulations, and complex business litigation. He excels at translating intricate legal and factual issues into concise, persuasive arguments.

Harmann maintains a robust pro bono and public interest practice. For example, he represents clients in federal immigration appeals challenging their unlawful removal from the United States, has advocated for criminal defendants in state appellate courts, and contributed to a gender equity investigation of the NCAA. Harmann has particular experience in election law, including representing Pennsylvania in defending its certification of the 2020 presidential election results at the U.S. Supreme Court, defending the constitutionality of New York’s candidate filing deadline in federal court, and submitting briefs in support of election administration grants in state and federal courts. Governor Andrew Beshear commissioned Harmann as a Kentucky Colonel—the Commonwealth’s highest civilian honor—for successfully defending the Governor’s COVID-19 public health measures at the U.S. Supreme Court.

Harmann served as a law clerk to Justice Sonia Sotomayor on the U.S. Supreme Court during the October 2023 Term. He previously clerked for Judge Raymond J. Lohier, Jr. on the U.S. Court of Appeals for the Second Circuit, and Judge Andrew L. Carter, Jr. on the U.S. District Court for the Southern District of New York. Earlier in his career, he was an associate at Kaplan Hecker & Fink LLP. Before law school, he worked as the Government & Policy Fellow at the Sikh American Legal Defense and Education Fund (SALDEF). Harmann graduated with honors from Harvard Law School and Columbia University, where he was named a Truman Scholar. During law school, he worked at the American Civil Liberties Union (ACLU), the NAACP Legal Defense and Educational Fund (LDF), the Roderick and Solange MacArthur Justice Center, and the United States Senate Judiciary Committee.