- Riverhead Administrators Association Contract
- Riverhead Central Faculty Association Contract
- Riverhead Teaching Assistants Association Contract
- Riverhead CSD Non-Instructional Unit, Suffolk County Educational Local 870, CSEA Local 1000 AFSCME AFL-CIO
- Riverhead School Teacher Aides Unit, Suffolk County Educational Local 870, CSEA Local 1000 AFSCME AFL-CIO
- Non-Aligned Personnel
