Keystone Expands Leadership Team with Addition of Former Justice Department Antitrust Leaders Malika Krishna and Brian Clark in New Washington, D.C. Office

<p>Krishna and Clark Join as Partners, Deepening Keystone's Antitrust and Competition Practice NEW YORK, July 30, 2026 /PRNewswire/ -- Keystone, a global technology and advisory firm specializing in economics, technology, strategy, and complex digital ecosystems, today announced the...</p>