| Business | Phone |
| Callahan House 312 Terry St, Longmont 80501 | (303) 776-5191 |
| City Of Longmont 310 Kimbark St, Longmont 80501 | (303) 776-6050 |
| City Of Longmont 350 Kimbark St, Longmont 80501 | (303) 776-6050 |
| City Of Longmont Power & Comm 1100 S Sherman St, Longmont 80501 | (303) 651-8386 |
| Community Svc 350 Kimbark St, Longmont 80501 | (303) 651-8633 |
| Finance Director 350 Kimbark St, Longmont 80501 | (303) 651-8622 |
| Garden Acres Ballfield 1800 Spencer St, Longmont 80501 | (303) 702-0641 |
| Longmont Accounting 350 Kimbark St, Longmont 80501 | (303) 651-8669 |
| Longmont Building Inspection 350 Kimbark St, Longmont 80501 | (303) 651-8332 |
| Longmont Cable Tv Liason Longmont 80501 | (303) 651-8621 |
| Longmont City Council 350 Kimbark St, Longmont 80501 | (303) 651-8601 |
| Longmont City Office 1821 Lefthand Cir, Longmont 80501 | (720) 652-0860 |
| Longmont City Office 400 Quail Rd, Longmont 80501 | (303) 485-8119 |
| Longmont City Warehouse 1100 S Sherman St, Longmont 80501 | (303) 651-8346 |
| Longmont Civil Engineering 408 3rd Ave, Longmont 80501 | (303) 651-8304 |
| Longmont Code Enforcement 350 Kimbark St, Longmont 80501 | (303) 651-8695 |
| Longmont Data Processing 350 Kimbark St, Longmont 80501 | (303) 651-8680 |
| Longmont Fleet Svc 1100 S Sherman St, Longmont 80501 | (303) 651-8390 |
| Longmont Human Resources 350 Kimbark St, Longmont 80501 | (303) 651-8609 |
| Longmont Parking Enforcement 350 Kimbark St, Longmont 80501 | (303) 651-8658 |
| Longmont Planning 350 Kimbark St, Longmont 80501 | (303) 651-8330 |
| Longmont Purchasing Dept 1100 S Sherman St, Longmont 80501 | (303) 651-8349 |
| Longmont Risk Management Div 350 Kimbark St, Longmont 80501 | (303) 651-8435 |
| Longmont Street Maintenance 375 Airport Rd, Longmont 80503 | (303) 651-8305 |
| Longmont Traffic Operations 375 Airport Rd, Longmont 80503 | (303) 651-8698 |
| Longmont Union Reservoir Area 461 County Road 26, Longmont 80504 | (303) 772-1265 |
| Longmont Water & Wastewater 1100 S Sherman St, Longmont 80501 | (303) 651-8376 |
| Wade Gaddis Plant 7024 Ute Hwy, Longmont 80503 | (303) 651-0701 |
| Water Waste Water 1251 Bowen Cir, Longmont 80501 | (303) 651-8468 |