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King & Spalding

King & Spalding

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United States • Dispute resolution

2

General commercial disputes - premium ($500m+)

King & Spalding regularly prevails in billion-dollar disputes worldwide, deploying deep industry knowledge across financial services, technology, media, energy, healthcare, and transportation. The business litigation practice is headed by Atlanta-based Jessica Corley, who is well-equipped to handle commercial and regulatory disputes, alongside New York’s Damien Marshall, who argues antitrust, securities, and consumer protection litigation matters. Also in New York, office managing partner Richard Marooney tries an extensive array of general commercial disputes, while Leigh Nathanson advises on antitrust, market manipulation, and distressed investment litigation. Operating between Los Angeles and San Francisco, Lisa Bugni is ‘particularly strong’ in securities litigation. Further key contacts include Atlanta’s David Balser, instrumental in professional liability litigation, and Chicago’s Livia Kiser who leads on consumer fraud, false advertising, and privacy disputes. While 2025 saw the departure of Randy Mastro, the practice expanded with the additions of senior appellate and trial lawyer Paul Watford (Los Angeles); investigations and commercial disputes specialist Will Rollins (Los Angeles); antitrust and competition litigator Neel Chatterjee (Washington DC); and Matthew D. McGill (New York), known for judgment and arbitral award enforcement.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Broad bench of commercial litigators with a geographic footprint across the US. They can also work seamlessly with government/regulatory investigations lawyers on parallel civil and regulatory matters.’

  • ‘Rich Marooney is our go-to civil litigator. Lisa Bugni is particularly strong for securities litigation.’ 

  • 'The firm has a top tier big ticket US litigation practice and is a top pick for complex commercial disputes.'

  • 'The firm employs former federal prosecutors and senior officials from the DOJ and SEC. This gives them additional insights, especially where there may be parallel criminal or regulatory proceedings.'

  • The firm has strong cross-border capabilities and a multi-disciplinary approach, connecting their litigators with colleagues in related areas such as insurance, financial services regulatory and restructuring. The firm benefits from a deep bench of high caliber litigators. The firm also has strong links with associated services providers. This is important to the overall service received by clients.'

  • 'Of particular note are Leigh Nathanson and Brian Donovan. They always make themselves available when needed and their ability to think strategically as well as tactically is invaluable.' 

Key clients

  • Progressive Casualty Insurance Company
  • JP Morgan
  • NatWest
  • Skillz Inc.
  • ORIX USA
  • Capital One
  • Equifax

Work highlights

Secured victory for NatWest in long-running multidistrict litigation relating to the London Interbank Offered Rate (LIBOR) when the SDNY granted summary judgment in favor of our client.
Achieved four significant wins for Progressive Insurance affiliates in a string of class certification wins on appeal. We persuaded the Third, Fourth, and Seventh Circuits to reverse class certification, and the Ninth Circuit to affirm the denial of class certification, in cases concerning the insurance company’s estimate of the actual cash value of its insureds’ total-loss vehicles.
Secured a complete victory for Buena Vista Home Entertainment, Inc., a subsidiary of The Walt Disney Company, in a copyright litigation matter concerning the 2016 animated feature film “Moana.”
Practice head

Jessica Corley; Damien Marshall

Other key lawyers

Richard Marooney; Leigh Nathanson; Lisa Bugni; David Balser; Livia Kiser; Paul Watford; Will Rollins; Neel Chatterjee; Matthew McGill; Brian Donavon