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Compass Lexecon has been involved in many of the largest and most complex antitrust litigation and financial market cases over the past 30 years.

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In September 2016, the U.S. Court of Appeals for the Ninth Circuit affirmed a March 2014 U.S. District Court decision, granting summary judgment to Defendant Honeywell International, Inc. (Honeywell) on antitrust claims brought by Aerotec International, Inc. (Aerotec). Aerotec is...


AT&T Mobility entered into a settlement with a proposed consumer class that claimed that AT&T had illegally charged its customers state and local taxes for mobile internet access, despite a prohibition on the collection of taxes during the period from...


Compass Lexecon was retained by David Boies, Don Flexner, Bob Silver, Damien Marshall, Cynthia Christian, and Alanna Rutherford of Boies, Schiller & Flexner LLP to conduct analyses and provide testimony regarding liability and damages in American Express’ suit against Visa,...