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For over thirty-five years, O'Brien & Ryan, LLP, has represented entities and individuals in state and federal courts throughout Pennsylvania and New Jersey, as well as in administrative tribunals and various alternative dispute forums covering a diverse range of legal matters from complex litigation to simple personal cases. We remain on the leading edge of technological advances in both the office and courtroom settings. We are comprised of attorneys selected for their wide range of legal experience and strong commitment to their clients. The size of the firm allows each client to enjoy personal and consistent attention. Our clients range from major hospitals, educational institutions and Fortune 500 companies to individual professionals and smaller commercial enterprises. O'Brien & Ryan has a well-deserved reputation as a firm that is rich in trial experience. Clients look to O'Brien & Ryan because our willingness to take cases to trial consistently yields superior results.

O'Brien & Ryan, LLP Questions

The O'Brien & Ryan, LLP annual revenue was $14.5 million in 2026.

Mary Plyter-Eigner is the Partner of O'Brien & Ryan, LLP.

30 people are employed at O'Brien & Ryan, LLP.

O'Brien & Ryan, LLP is based in Plymouth Meeting, Pennsylvania.

The NAICS codes for O'Brien & Ryan, LLP are [5411, 541, 54, 54111].

The SIC codes for O'Brien & Ryan, LLP are [81, 811].

Top O'Brien & Ryan, LLP Employees

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