Antitrust Update Blog is a source of insights, information and analysis on criminal and civil antitrust and competition-related issues. Patterson Belknap’s antitrust lawyers represent clients in antitrust litigation and counseling matters, including those related to pricing, marketing, distribution, franchising, and joint ventures and other strategic alliances. We have significant experience with government civil and criminal/cartel investigations, providing the unique perspectives of former...
Practice Expertise
Areas of Practice
- Appellate
- Class Action Litigation
- Complex Commercial Actions
- Cross-Border Capital Markets
- False Advertising
- Intellectual Property Litigation
- Litigation
- Trade Secrets, Trademark, and Copyright ... View More
Profile
Adeel Mangi is a litigator with extensive experience trying high-stakes cases to judges and juries in state and federal courts around the country. For three consecutive years (2023-2025), Benchmark Litigation has named Mr. Mangi to its lists of the “Top 100 Trial Lawyers” in the U.S., which consists of “partners who have been venerated by peers and clients as being the best in breed at the nuanced practice of trial law . . . based on an intensive peer-and-client review." Benchmark Litigation also named Mr. Mangi as a Litigation Star for each of the last three years (2023-2025) and has noted that peers describe Mr. Mangi as “meticulous and relentless,” and “an unflappable whiz at everything he does.”
Chambers USA quotes clients as saying Mr. Mangi is “one of the best litigators in the country right now,” “a first-class trial lawyer with excellent instincts,” and “one of the best up-and-coming trial attorneys in the country.” Clients quoted by Chambers also noted that “few, if any, attorneys can match his oral advocacy” and highlighted his “unflinching advocacy,” “masterful grasp of the facts of a case,” and ability “to think many steps ahead and devise winning strategies.”
Mr. Mangi secured the largest jury verdict in the history of the Virginia court system with a $2 billion verdict after a seven-week jury trial in a case involving theft of trade secrets in the software industry—a case that is now on appeal. Mr. Mangi also secured the largest settlement with New York state in history in cases involving the death of a state prison inmate on the morning of closing arguments after a two-and-a-half week jury trial in the Southern District of New York. Mr. Mangi has represented other clients in a variety of industries in state and federal courts and arbitrations around the country across a range of subject matters including commercial contracts, false advertising, and consumer protection statutes.
Benchmark awarded its "Impact Case of the Year" recognition for 2023 to Mr. Mangi and his team. In 2023, Mr. Mangi was also named to The National Law Journal’s General Litigation Trailblazers list. In 2022, he was featured in The American Lawyer’s ‘Litigators of the Week’ section in connection with a jury trial verdict. He has also been highlighted repeatedly, including in 2022, as a “Client Service All-Star” by The BTI Consulting Group. This award recognizes attorneys who “stand above all the others in delivering the absolute best in client service.”
Earlier, Mr. Mangi was named a "Future Star" for the years 2017-2022 by Benchmark Litigation. From 2016-2018 Mr. Mangi was also named to Benchmark’s “40 & Under Hot List.” The list recognizes “the achievements of the nation’s most accomplished legal partners” ages 40 and under. Mr. Mangi was previously named a “2014 Rising Star” by the New York Law Journal, which recognizes the most promising lawyers under the age of 40 who have demonstrated that they are top contributors to the practice of law and their communities; a “Rising Star” by the Minority Corporate Counsel Association’s Diversity & the Bar magazine, which selected 12 up-and-coming attorneys for 2014; and as one of the National Asian and Pacific American Bar Association's "Best Lawyers Under 40" for 2014. Mr. Mangi is also a 2013 graduate of the Microsoft Litigation Group's highly prestigious Trial Advocacy Academy.
Mr. Mangi has also litigated numerous high-profile civil rights cases. These included some of the most closely watched religious freedom cases of the Trump era, which involved two different Muslim communities denied permission to build mosques in Bernards Township and Bayonne. These lawsuits were the subject of seven editorials in New Jersey’s largest newspaper and were covered extensively in the national press. Both cases eventually resulted in settlements under which the mosques were approved and the municipalities involved paid significant compensation to the affected Islamic groups. Mr. Mangi also tried a lawsuit in 2020 involving the death of a mentally ill African-American inmate who was alleged to have been killed by white prison guards in a retaliatory beating. The resulting landmark settlement included an unprecedented provision requiring New York to install a comprehensive network of video recording cameras and microphones throughout the Sullivan Correctional Facility. Mr. Mangi has filed a series of amicus briefs on behalf of a coalition of cross-faith religious groups on issues including DACA, the border wall, and on LGBTQ+ civil rights issues. Between 2017 and 2019, based upon work pioneered and led by Mr. Mangi, Patterson Belknap was awarded the "Outstanding Service Award" by the Alliance of Families for Justice; the “Legal Leadership Award” by the American Civil Liberties Union—New Jersey; the “Champions of Justice” award by the Muslim Bar Association of New York; the “Religious Liberty Award" (2018) and the “Landmark” litigation award (2017) by the New Jersey Muslim Lawyers Association; and the Trailblazer Award by the South Asian Bar Association of New Jersey. Mr. Mangi was also declared Pro Bono Attorney of the Year by the South Asian Bar Association of New York. Also in 2017, Mr. Mangi Chaired the Federal Bar Council’s annual Law Day Dinner celebrating the Rule of Law before some 850 attorneys and federal judges.
Mr. Mangi joined the firm in 2000 upon his graduation from Harvard Law School with an LL.M. Mr. Mangi was at Harvard as a Kennedy Memorial Scholar. Prior to that time, Mr. Mangi qualified as a British Barrister at Law as a Member of the Honorable Society of Lincoln's Inn, during which time his two-person team won the National Bar Providers Moot Court Competition. Mr. Mangi also holds a First Class Degree in Law from the University of Oxford (Pembroke College), where he held the Roger Bannister Scholarship for Academics and Sports and Domus scholarships. Mr. Mangi's two-person team was also the winner of the Oxford University Inner Temple Moot Court Competition.
Bar Admissions
- U.S. Supreme Court
- U.S. Court of Appeals, First Circuit; Second Circuit; Third Circuit; Fourth Circuit; Eighth Circuit; Ninth Circuit; Federal Circuit
- U.S. District Court, Southern, Eastern and Northern Districts of New York; District of New Jersey
- New York
- New Jersey
Education
- Harvard Law School (LL.M., 2000)
- Lincoln's Inn (Barrister at Law, 1999)
- University of Oxford (BA/Law, with honors, 1998)
Areas of Practice
- Appellate
- Class Action Litigation
- Complex Commercial Actions
- Cross-Border Capital Markets
- False Advertising
- Intellectual Property Litigation
- Litigation
- Trade Secrets, Trademark, and Copyright Litigation
Blogs
Data Security Law Blog
DataSecurityLaw.com is the firm’s resource for the latest news, analysis, and thought leadership in the critical area of privacy and cybersecurity law. Patterson Belknap’s Privacy and Data Security practice provides public and private enterprises, their leadership teams and boards with comprehensive services in this critical area. Our team of experienced litigators, corporate advisors and former federal and state prosecutors advises on a broad range of privacy and data protection matters...
Misbranded
Misbranded is Patterson Belknap’s blog covering false advertising litigation—both consumer class actions and competitor suits—with a particular focus on FDA-regulated products (foods/beverages, pharmaceuticals, cosmetics, and dietary supplements).
New York Commercial Division Decisions
The blog is a source for insights and developments related to practice in the Commercial Division of the New York State Supreme Court. This blog reviews key developments in the Commercial Division, including important decisions handed down by the Commercial Division and appellate court decisions reviewing Commercial Division decisions. The blog also covers changes and proposed changes to Commercial Division rules and practice, including revisions to the rules since January 2015. The...
Meet our Firms and Professionals
WSG’s member firms include legal, investment banking and accounting experts across industries and on a global scale. We invite you to meet our member firms and professionals.
