Among O'Neil/Goldman recent and current clients are:
- Alliance for Business Leadership
- Attorney General Maura Healey
- Boston Mayor Marty Walsh
- Comcast
- Committee for a Democratic House
- Good Chemistry
- House Speaker Robert DeLeo
- Mass. Building Trades Council
- Mass. Nurses Association
- New England Aquarium
- Senator Cynthia Creem
- State Auditor Suzanne Bump
- WGA Insurance
- Zip Car