NEW YORK, NY, August 27, 2026 /24-7PressRelease/ -- Ann-Elizabeth Ostrager has been selected for inclusion in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.
Ms. Ostrager has established herself as a distinguished partner at Sullivan and Cromwell LLP in New York City. Her election to partnership stands as her most notable professional achievement, reflecting both her expertise and the trust she has cultivated with clients who regularly seek her counsel. In her role, she meets with regulators, conducts employment mediations and arbitrations, and leads high-stakes litigations. She is also responsible for mentoring litigation associates, assigning work, guiding associates in their career paths and co-heading the women's initiative committee. Additionally, she plays an active part in recruiting for the firm and maintains a robust pro bono practice.
Prior to becoming a partner, Ms. Ostrager served as an associate at Sullivan and Cromwell LLP, where she developed her skills in litigation, employment law, white-collar investigations and high-stakes internal and government investigations. Her responsibilities included providing employment advisory work, arbitration and mediation services, as well as offering high-stakes employment advice to clients.
Before joining Sullivan and Cromwell LLP as an associate, Ms. Ostrager gained invaluable experience as a law clerk for the Honorable Dennis Jacobs at the United States Court of Appeals for the Second Circuit from 2010 to 2011. During the preceding year, she clerked for the Honorable Richard C. Wesley at the United States Court of Appeals for the Second Circuit. Her career began with a summer associate position at Sullivan and Cromwell LLP in 2008, where she first demonstrated her aptitude for complex legal matters and began building relationships that would support her future advancement within the firm.
Ms. Ostrager's academic background has been foundational to her success. She earned a Juris Doctor from New York University School of Law in 2009 after completing a BA in politics at Princeton University in 2005. She also maintains membership in the New York State Bar Association and the New York City Bar. Overall, she credits much of her professional growth to the willingness of partners who preceded her to invest time and provide opportunities for mentorship, combined with her own dedication to hard work and delivering exceptional results for clients.
Ms. Ostrager's civic involvement extends beyond her legal practice, serving as an interviewer for Princeton University. She is also actively involved with Dalton School and maintains a significant commitment to pro bono initiatives. Her commitment to pro bono work has been recognized by the State Bar, which has named her an honoree in multiple years.
Recognition for Ms. Ostrager's accomplishments includes being ranked in labor and employment by Chambers and Partners, being listed among The Best Lawyers in America by Best Lawyers and being named one of the Top 50 Labor and Employment Litigators by Benchmark Litigation. Additional honors include being recognized as a Future Star by Benchmark Litigation, a Rising Star by New York Law Journal in 2019 and one of the 500 Leading Corporate Employment Lawyers by Lawdragon Inc., among many others.
Born in New York City, Ms. Ostrager is deeply committed to both her family life and personal interests. As a mother of three sons, she remains active in their school communities while balancing a demanding professional schedule.
Ms. Ostrager is dedicated to serving as a trusted advisor for clients navigating complex challenges across various sectors. She has successfully represented clients in some of the most complex and high-stakes litigation, government investigations and internal matters, consistently achieving favorable outcomes. Drawing on experience across a broad range of industries, she is recognized as a thought leader and remains dedicated to advancing the legal profession through excellence in practice, mentorship and meaningful service.
About Marquis Who's Who®:
Since 1899, when A. N. Marquis printed the First Edition of Who's Who in America®, Marquis Who's Who® has chronicled the lives of the most accomplished individuals and innovators from every significant field of endeavor, including politics, business, medicine, law, education, art, religion and entertainment. The suite of Marquis® publications, including Who's Who in America® and Who's Who in the World®, remains an essential biographical source for thousands of researchers, journalists, librarians and executive search firms around the globe. Marquis® publications can be viewed at the official Marquis Who's Who® website, www.marquiswhoswho.com.
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