| Business | Phone |
| Ambridge Boro Office 600 11th St, Ambridge 15003 | (724) 266-9895 |
| Ambridge Boro Street Commssnr 422 11th St, Ambridge 15003 | (724) 266-0390 |
| Ambridge Municipal Authority 10th St & Merchantamp;, Ambridge 15003 | (724) 266-7810 |
| Ambridge Municipal Authority 2201 Ohio River Blvd, Ambridge 15003 | (724) 266-0790 |
| Ambridge Secretary 600 11th St, Ambridge 15003 | (724) 266-4070 |
| Ambridge Secretary Office 600 11th St, Ambridge 15003 | (724) 266-7810 |
| Ambridge Traffic Clerk 600 11th St, Ambridge 15003 | (724) 266-5550 |
| Ambridge Treatment Plant Ohio River Blvd, Ambridge 15003 | (724) 266-0790 |
| Ambridge Veterans Svc Center 600 11th St, Ambridge 15003 | (724) 266-2558 |
| Harmony Township Secretary Office 2501 Woodland Rd, Ambridge 15003 | (724) 266-1910 |
| Leet Township Municipal Auth 198 Ambridge Ave, Ambridge 15003 | (724) 266-8516 |
| Leet Township Municipal Bldg 198 Ambridge Ave, Ambridge 15003 | (724) 266-2280 |