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Press Release

Partner Sophie Castillo Named a 2023 Top 50 Attorney of San Francisco

—San Francisco— Keller and Heckman Partner Sophia (Sophie) Castillo has been recognized as a Top 50 attorney of San Francisco in 2023 by Attorney Intel. 

Sophie received this distinction for her significant work within the firm’s California’s Proposition 65 and Litigation practices, assisting clients in the food and beverage, cosmetics and personal care, dietary supplement, apparel, and general consumer product industries. Notably, she guides her clients, including domestic and international importers, distributors, national brands, private labels, institutional suppliers, family-owned food processing businesses, and retail grocers, on compliance, litigation, and risk avoidance surrounding California’s Proposition 65, as well as other state and national laws related to emerging contaminants and per- and polyfluoroalkyl substances (PFAS).

“I am incredibly honored to be included in the Top 50 list amongst such talented and high-caliber attorneys,” said Sophie. “I am especially proud of this recognition because it highlights just how dedicated I am to my clients and the success of their businesses.”

Attorney Intel is a comprehensive source for research and information related to law firms and the broader legal industry.

About Keller and Heckman

Keller and Heckman LLP is an internationally renowned law firm with a broad practice in the areas of regulatory law, public policy, and litigation. From offices around the world, our attorneys represent global companies and trade associations servicing a range of industries, including advertising and promotions, food and food additives, tobacco and e-vapor, plastics, pesticides, industrial and specialty chemicals, consumer products, drugs and medical devices, transportation, and telecommunications. Keller and Heckman is a pioneer in the use of interdisciplinary approaches to problem-solving with an in-house scientific staff that works closely with the attorneys on matters of technical complexity.