
Winston & Strawn LLP has built a strong reputation for handling complex civil, criminal, and appellate antitrust cases, including matters intersecting with intellectual property and technology. Recent highlights include successfully defending consolidated class action litigation and securing summary judgment for clients accused of price-fixing conspiracies. The team has also achieved significant dismissals in monopolization and Sherman Act disputes, among other notable victories. Co-chairing from New York, Eva Cole specializes in cartel investigations and class actions. In Chicago, co-chair James Herbison recently secured summary judgment and a DOJ dismissal of criminal charges for a client in the high-profile broiler chicken litigation. Based in New York, Jeffrey Kessler is frequently entrusted to lead challenging antitrust, sports law, and IP cases, including major jury trials. Other key contributors include New York-based Jeffrey Amato and Chicago’s Mike Mayer .
Legal 500 Editorial commentary
- Profile
Testimonials
Collated independently by Legal 500 research team.
- ‘Jim Herbison is the antitrust team leader at Winston and is best in class in any pertinent areas including substantive antitrust experience, ability to provide practical advice, willing to take time to understand and appreciate the business context.'
Key clients
- Activision Blizzard
- Actor's Equity Association
- Delta Dental Insurance Company
- Discover Financial Services
- Equifax
- KAR Auction Services
- Motorola Solutions
- National Pork Producers Council
- NorthShore University HealthSystem
- Panasonic Corporation and related entities
Work highlights
- Represented Actors’ Equity; a union representing actors in Broadway theatres.
- Secured a win for clients in a long-running dispute with independent power producer Hu Honua Bioenergy.
- Represented NorthShore University HealthSystem in a long-running class action alleging violation of the Sherman and Clayton Acts.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Eva Cole; James Herbison
Other key lawyers
Jeffrey Kessler; Jeffrey Amato; Mike Mayer; Tom Neuner