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Litigation Star


New York

Practice area:


Demian Ordway represents clients in an array of complex commercial matters, with a recent focus on antitrust. That focus includes his longstanding representation of Visa in In re Payment Card Interchange Fee and Merchant Discount Antitrust Litigation, a multidistrict class action litigation in which virtually every merchant in the country has brought antitrust claims against Visa and Mastercard. Demian recently represented Valassis Communications, Inc., a MacAndrews & Forbes company, as plaintiff in a jury trial in the Southern District of New York involving a massive antitrust claim against News Corp. and its subsidiaries. The case ultimately settled confidentially. His other antitrust work includes advising a major German financial institution on potential antitrust claims stemming from the LIBOR scandal, and counseling companies on the scope of non- compete clauses. 

Outside of antitrust, Demian has also defended Visa in significant commercial disputes, including actions brought by Kroger, the nation’s largest grocer, and Walmart, the world’s largest retailer, both of which he helped Visa settle on favorable terms. He defended Collineo Asset Management, a German asset manager, from claims alleging hundreds of millions of dollars in losses due to failed collateralized debt obligations, and defended Cowen Inc., an investment bank and financial services company, against copyright infringement claims alleging, again, hundreds of millions of dollars in damages. Demian again helped his clients favorably settle both of those actions, and in his representation of Cowen, after successfully obtaining dismissal of most of plaintiff ’s case on summary judgment. Further, he has represented multiple bank trustees as plaintiffs seeking to determine responsibility for billions of dollars in losses in residential mortgage-backed securities. 

Demian has also given back to the community, handling pro bono matters on issues of personal importance to him, representing clients such as the American Diabetes Association, National Women’s Law Center, Center for Reproductive Rights, and Brennan Center for Justice. Together with the NAACP Legal Defense Fund, he is currently lead counsel prosecuting claims under Section 2 of the Voting Rights on behalf of plaintiffs and against the State of Arkansas in Christian Ministerial Alliance v. Thurston. As Holwell Shuster & Goldberg’s chief technology officer, Demian handles all decisions regarding the firm’s IT systems, including technology purchases, staffing, and vendor negotiations. He has been recognized by Benchmark Litigation since 2017. 

Prior to joining HSG, Demian was a litigation associate at Paul, Weiss, Rifkind, Wharton & Garrison LLP and clerked for Judge Richard J. Holwell in the Southern District of New York and Judge M. Blane Michael in the Fourth Circuit. 

Key Practice Areas:

  • Antitrust
  • Banking & Financial Services
  • Business & Commercial
  • Securities 

Year Joined Firm:


  • New York University School of Law (J.D., magna cum laude)
  • Columbia University (M.A.)
  • Harvard University (A.B., cum laude) 


Updated Aug 2021