General information for Mainline Holdings, Inc.
Physical address
4900 S Highway 79, Rapid City, Sd, 57701
Mailing address
Po Box 3448, Rapid City, SD, 57709
Points of contact for Mainline Holdings, Inc.
SAM.gov Points of Contact
Ty
Pivonka
Government Business POC
President
PO Box 3448, Rapid City, SD, 57709
Barbara
Brown
Electronic Business POC
Controller
PO Box 3448, Rapid City, SD, 57709
Additional contact details may be available
NAICS codes for Mainline Holdings, Inc.
| Code | Description | Small Business |
|---|---|---|
| 237110 PRIMARY | Water and Sewer Line and Related Structures Construction | Yes |
| 115112 | Soil Preparation, Planting, and Cultivating | No |
| 237310 | Highway, Street, and Bridge Construction | Yes |
|
238110
|
Poured Concrete Foundation and Structure Contractors
|
No
|
|
238210
|
Electrical Contractors and Other Wiring Installation Contractors
|
No
|
|
238220
|
Plumbing, Heating, and Air-Conditioning Contractors
|
No
|
|
238350
|
Finish Carpentry Contractors
|
No
|
|
238910
|
Site Preparation Contractors
|
No
|
|
238990
|
All Other Specialty Trade Contractors
|
No
|
Update history
6 change(s) tracked
Jul 18, 2026
NAICS 238990: exception YY → NN
Jul 18, 2026
NAICS 238910: small-business status Yes → No
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