Complex Litigation

Bartko is a boutique high-end law firm specializing in national and international complex litigation and investigations.

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Transactional Real Estate

Bartko handles the full range of real estate matters for clients, including tenants, property owners and commercial developers nationwide.

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Intellectual Property

For years, Bartko attorneys have achieved outstanding results for their clients in diverse areas of intellectual property litigation.

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Patent Litigation

As part of our Intellectual Property practice, Bartko patent litigators routinely represent both plaintiffs and defendants in trial courts throughout the United States.

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Real Estate Litigation

Bartko has extensive experience litigating real estate disputes of all kinds on behalf of property owners, landlords, tenants, developers, property managers, brokers, real estate investors, real estate partnerships, REITs, mortgage banks, lenders, borrowers and guarantors.

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Enforcement and Data Privacy

Our attorneys have expertise in defending clients, both in the private and public sectors, in high-stakes privacy litigation and enforcement matters.

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Recognizing Our History | Focused on the Future

Bartko, established 45 years ago, is a top 20 boutique law firm specializing in national and international complex litigation and investigations, as well as real estate and franchising transactions. We are a 45+ lawyer firm dedicated to the strategic cutting-edge representation of our clients in California, nationally and internationally.

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BZBM Selected as Top 20 Boutique Law Firm by The Daily Journal

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Patrick M. Ryan and Benjamin K. Riley Named “Top 100 Lawyer” in California

Patrick M. Ryan and Benjamin K. Riley Named “Top 100 Lawyer” in California September 15, 2023 San Francisco, CA – Patrick M. Ryan—head of Bartko law firm’s Litigation practice and Chair of its Antitrust and IP and Brand Protection groups, and a member of the firm’s Executive Committee—and Benjamin K. Riley—a principal in Bartko’s Litigation […]

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Bartko Expands Into Chicago and Announces Addition of Principal Jason A. Zweig

Bartko Expands Into Chicago and Announces Addition of Principal Jason A. Zweig July 18, 2023 San Francisco, CA – Bartko Zankel Bunzel Miller, P.C., an elite boutique litigation law firm, which specializes in complex litigation, is pleased to announce the addition of Jason A. Zweig as a Principal of the firm. Jason will be a […]

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Bartko Scores Victory Against Zazzle, as Federal Judge Resoundingly Rejects Second Attempt to Dismiss Font Designer’s Claims that Zazzle Stole Her IP

Bartko Scores Victory Against Zazzle, as Federal Judge Resoundingly Rejects Second Attempt to Dismiss Font Designer’s Claims that Zazzle Stole Her IP July 18, 2023 San Francisco, CA – On the evening of July 17, 2023, the Honorable Beth Labson Freeman of the U.S. District Court for the Northern District for California, in Laatz v. […]

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