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Conrad O'Brien

A uniquely agile approach to litigation

At Conrad O’Brien, we tackle complex cases with tenacity and serve clients with responsiveness and integrity.

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Why Choose Conrad O’Brien? 

Our uniquely agile, collaborative approach to litigation allows us to solve clients' problems. Whether it’s successfully taking a case to trial or preventing legal problems before they occur, we perform with the smarts and tenacity of a special-ops team.



"Real integrity as they pursue cases. And they have real empathy for the clients that they're working with."

General Counsel

"They're exceptionally skilled, terrifically capable in litigation and legal advice. They bring an extraordinarily extensive expertise."

Source in Chambers USA 2021

"They don't only act as the outside counsel, they partner with in-house counsel and they become part of your team."

General Counsel

"They are the caliber of a big firm with the strengths and decency and family approach."

General Counsel

"Strategic and tenacious."

Source in Chambers USA 2021

"They are smart, hard-working, and incredibly capable."

Client, Colleague, & Referral Source

"The team works really well together. They have a good sense of strategy in approaching litigation and they have gone the extra mile in finding the correct arguments to support our case."

Client in Chambers USA 2020

"Conrad O’Brien is 'the premier litigation boutique firm in Philadelphia.'"

Source in Chambers USA 2020

Our Expertise


While we have a formidable reputation in the courts of Pennsylvania, we also regularly take on national cases.


We deftly handle complex cases in these key practice areas:

Our Approach

How We Work


We are tenacious and driven in everything we do. We run litigation teams that embrace flexibility, collaboration, and creative problem-solving at every step. Our uniquely nimble approach yields a more efficient operation and an impressive record.

How We Think


We know the law—we’re made up of former clerks, federal prosecutors, and federal judges; experienced trial attorneys; big-firm laterals; and top law-school grads. We thrive on challenges that require creative, big-picture thinking.

How We Treat People


We value empathy and integrity just as much as getting the job done. We don’t worry too much about hierarchy, which means we’ll focus on your case, not our egos. We provide responsive service.