| Business | Phone |
| City Of Piqua Engineering Dept 201 W Water St, Piqua 45356 | (937) 778-2044 |
| Director Of Law 201 W Water St, Piqua 45356 | (937) 778-2055 |
| Information Technology 132 N Wayne St, Piqua 45356 | (937) 778-2064 |
| Information Technology 201 W Water St, Piqua 45356 | (937) 778-2064 |
| Piqua Power Plant 919 S Main St, Piqua 45356 | (937) 778-2080 |
| Piqua Power System 123 Bridge St, Piqua 45356 | (937) 778-2077 |
| Piqua Waste Water Plant 121 Bridge St, Piqua 45356 | (937) 778-2088 |
| Springcreek Township House N Piqua Lockington Rd, Piqua 45356 | (937) 773-1018 |