Public Service Company (capitalized) may refer one of the below listed American companies.
When not capitalized, public service company often refers to the concept of companies that offer public services.
- Central West Public Service Company, in Missouri and surrounding areas
- Eastern Shore Public Service Company, in Delaware and Maryland
- Interstate Public Service Company, in Indiana
- Kansas City Public Service Company, in Missouri
- Northern Indiana Public Service Company
- Public Service Company of Colorado
- Public Service Company of Indiana
- Public Service Company of New Hampshire
- Public Service Company of New Mexico
- Public Service Company of Oklahoma
- St. Louis Public Service Company, in Missouri