Coblentz Patch Duffy & Bass

Coblentz Patch Duffy & Bass is a San Francisco-based law firm founded in 1890, advising businesses that range from family-owned companies to multinational corporations. The firm also acts as outside general counsel to clients. It operates from two offices, in San Francisco and Napa, California.

Practice areas cover corporate law, litigation, real estate, employment, data privacy and cybersecurity, intellectual property, tax, family wealth, exempt organizations, and white-collar defense and investigations. Clients served include family-owned businesses, emerging-growth ventures, multinational corporations and nonprofit or exempt organizations across the Bay Area and beyond.

The firm maintains a long-standing commitment to pro bono work, having contributed tens of thousands of pro bono hours since its founding and committing 3% of total billable hours per year to pro bono matters. Its stated approach emphasises depth of experience, specialised expertise and service focused on client objectives.