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Who We Are

Founded in 1984 by three litigation attorneys from a major Philadelphia law firm, Conrad O’Brien has established itself as the insider’s law firm—winning bet-the-company cases for AmLaw 100 firms and Fortune 500 companies, as well as high-stakes cases for government entities and individuals. Our attorneys are adept at resolving clients’ matters behind the scenes, but when that’s not possible, we do what we do best: take the case to trial and win.

By The Numbers


former law clerks


Conrad O'Brien attorneys individually ranked as industry leaders in Chambers USA 2019


languages spoken


marathons (and about 84 half-marathons) run


kids (and counting) being raised to have excellent argumentation skills


practice areas in which Conrad O’Brien was awarded a Tier 1 ranking in Philadelphia by U.S. News & World Report, "Best Law Firms" 2020.

Our Approach

tenacity, flexibility, and collaboration

creative, big-picture thinking

empathy, integrity, and responsive service