On May 28, 2026, IAM 1000 recognized Wilson Sonsini in the 2026 edition of IAM Patent 1000. The firm earned three rankings, and five Wilson Sonsini attorneys received individual recommendations.

The publication praised the firm’s “diversely talented line-up” of patent-focused experts, corporate lawyers, technology transactions specialists, and litigators. James Heslin and Matthew Bresnahan were highlighted as “standouts” on the patent team. Ken Clark was acknowledged as one of the “leading transactional lawyers” in the pharmaceutical and biotech sectors, while James Yoon was honored among the “most experienced trial lawyers.”

Wilson Sonsini’s firm rankings include:

• National: Recommended for Transactions
• California: Highly Recommended for Transactions
• California: Bronze Ranking for Litigation

The recommended attorneys that received individual recognition include:

• Matthew Bresnahan
• Ken Clark
• James Heslin
• Michael Rosato
• James Yoon

Click here to view the complete guide.