| Business | Phone |
| Ontario City Clerk 303 E B St, Ontario 91764 | (909) 395-2009 |
| Ontario City Hall 303 E B St, Ontario 91764 | (909) 395-2000 |
| Ontario City Manager 303 E B St, Ontario 91764 | (909) 395-2010 |
| Sam Crow For Mayor 437 N Euclid Ave, Ontario 91762 | (909) 986-5004 |