Willenken and its partners Eileen Ahern, Paul Loh, Kenneth Trujillo-Jamison, and Jason Wilson have been recognized in the 2026 edition of Benchmark Litigation, a leading guide that ranks elite litigation firms across North America for their excellence in trial work and client service.
In the 2026 edition, Willenken is once again ranked as a “Highly Recommended” firm for litigation and dispute resolution—marking the second consecutive year the firm has earned this distinction. Partners Eileen Ahern, Paul Loh, and Jason Wilson are again recognized as “Litigation Stars,” an honor reserved for attorneys consistently praised by clients and peers as highly reputable and effective litigators. Managing Partner Kenneth Trujillo-Jamison is named a “Future Star.”
Benchmark Litigation highlighted Willenken’s unique position as a 100% minority-owned firm with a nimble structure that enables it to frequently showcase its trial capabilities in complex, high-stakes cases.
A standout example of the firm’s growing reach was its victory in Delaware Chancery Court for AbbVie. A Willenken team led by Paul Loh, and including Jason Wilson, Kenneth Trujillo-Jamison, and Eileen Ahern, secured a $500 million verdict in a long-running commercial dispute involving the drug Lupron. The case arose after Takeda, the manufacturer of Lupron, experienced regulatory shutdowns that led to a major shortage. AbbVie successfully pursued damages for its lost business, culminating in a significant trial win in March 2024.
Clients and peers described Willenken as a “litigation-specific shop noted for its trial acumen with California-centric cases” and praised the firm’s “efficient staffing, effective strategies and excellent communications.”
Clients further characterized Willenken attorneys as “responsive, cost-efficient, and insightful,” emphasizing that the firm’s services are “always geared toward obtaining the best result at the earliest juncture.”
Benchmark Litigation
See Benchmark Litigation’s full coverage of the firm here.
ABOUT BENCHMARK LITIGATION
Benchmark Litigation is the only independent guide focused exclusively on identifying and ranking the leading litigation attorneys and firms in North America. Its annual rankings are based on a rigorous six-month research process involving extensive interviews with litigators and clients, analysis of recent casework, and peer feedback across state and national practice areas.
