Arnold & Porter is widely recognized for our successful record in sensitive, complex, or high-stakes litigation. We partner with our clients to determine how they define success, and then find the optimal path to effective resolution of their legal dispute.

Our litigation clients include some of the leading corporations in the world: Adobe, AstraZeneca, AIG, Airbus, Barnes & Noble, Bayer, Boston Scientific, BP, ExxonMobil, General Electric, GlaxoSmithKline, HarperCollins Publishers, Honeywell, Lutron Electronics, Norfolk Southern, Novartis, Pfizer, Philip Morris, Samsung, VISA, and Wells Fargo.

Breadth of experience. Our lawyers have been involved in precedent-setting cases in virtually every major sector including:

Deep bench of skilled litigators. Nearly 750 litigators work across 10 offices as one multi-disciplinary team. We draw on the significant experience of former federal, state, and international prosecutors; former government officials; former clerks to the US Supreme Court, and appellate and district courts; and our seasoned trial lawyers to provide creative, effective solutions.

Renowned regulatory and industry experience. Clients benefit from our firm's distinctive regulatory and industry expertise. We combine a deep understanding of the business issues facing our clients with creative legal analysis to develop the most effective defense strategy.

Trial-ready approach. With a deep bench of first chair trial lawyers, our team has successfully represented clients in hundreds of jury and bench trials. By preparing each case for trial, we are able to aggressively pursue the most favorable results for our clients—whether it is securing a verdict, winning through motion practice, or avoiding the risks of litigation through negotiation.

Premiere class action defense. Our firm has defended hundreds of class actions and other cases involving aggregate claims lawsuits, and we regularly prevail on dispositive motions, class certification motions, at trial, and on appeal. We frequently are asked to develop and implement and lead joint defense groups, coordinate multi-district or multi-forum litigation, and litigate non-class mass actions.


Auxilium Pharmaceuticals Holtsclaw v. Auxilium

Obtained jury verdict in bellwether trial case for multidistrict litigation involving testosterone replacement therapy.

BP West Coast Products Hoskin Hogan v. BP West Coast Products LLC

Secured jury trial victory against allegations of overcharging and a defective point of sale computer system.

VISA USA Visa "indirect purchaser" litigation

Defend client in more than 40 state court "indirect purchaser" actions filed by consumers alleging higher prices paid as a result of the purported "tying" and other alleged anti-competitive conduct.

Philip Morris USA Engle progeny litigation

Represent client in over 8,000 cases filed by plaintiffs in state and federal courts in Florida asserting claims for personal injury and wrongful death.

Atlantic Richfield Co. County of Santa Clara, et al. v. Atlantic Richfield Company, et al.

Successfully defended client against public nuisance claims brought by cities and counties in California.



Arnold & Porter Discusses Ninth Circuit Ruling on Section 14(e) of Exchange Act
The CLS Blue Sky Blog
Lit Alerts—May 2018
A Publication of the Litigation Practice Group
Departing from Five Other Circuit Courts, the Ninth Circuit Holds That Section 14(e) of the Exchange Act Requires Only a Showing of Negligence
Lit Alerts—April 2018, Vol. 2
A Publication of the Litigation Practice Group
Lit Alerts—April 2018, Vol. 1
A Publication of the Litigation Practice Group


"Firms That Dominated the Federal Circuit" (2017)
Litigation Powerhouse (2016)
Chambers USA
Litigation: General Commercial (2004-2017)
Product Liability and Mass Tort (Nationwide) (2004-2017)
Litigation: Appellate (California) (2012-2017)
Appellate Law (Nationwide) (2013-2017)
Litigation: White-Collar Crime & Government Investigations (DC) (2014-2017)
Corporate Crime & Investigations (2015-2017)
The Legal 500 US
Litigation: Supreme Court and Appellate (2012-2017)
Commercial Litigation (2015-2017)
White-Collar Criminal Defense (2013-2016)
Product Liability and Mass Tort Defense: Consumer Products (including tobacco) (2008-2015)
Product Liability and Mass Tort Defense: Toxic Tort (2011-2015)
Product Liability and Mass Tort Defense: Aerospace/Aviation (2015)

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