The firm represents a broad spectrum of clients, including businesses, insurance companies, hospitals, physician groups, prominent law firms, public entities, and individuals. Clients ranging from Fortune 100 companies to newer entrepreneurial businesses have chosen Conrad O'Brien for its broad expertise, cost-effective representation, and dedication to client interests. Representative clients of the firm include:
- Aegon USA Inc.
- AkzoNobel Inc.
- Americo Financial Life and Annuity Insurance Company
- Barnes & Noble, Inc.
- Cephalon, Inc.
- The Children's Hospital of Philadelphia
- CitiGroup Global Markets, Inc.
- The Dow Chemical Company
- Exxon Mobil Corporation
- Globus Medical, Inc.
- Hillerich & Bradsby Company, Inc.
- IBM Corporation
- Lorillard Tobacco Company
- The Medical Protective Company
- MDU Resources Group, Inc.
- Motiva Enterprises LLC
- NEC America Inc.
- OSRAM Sylvania Products Inc.
- Pennsylvania American Water Company
- Polydyne Inc.
- Progressive Group of Insurance Companies
- QUALCOMM, Inc.
- Sallie Mae Inc. (d/b/a SLM Financial Corporation)
- Superior Steel Components, Inc.
- Susquehanna Patriot Bank
- Teledyne Continental Motors
- The Vanguard Group, Inc.