General information for Sentry LLC
Physical address
1928 Calvin Dr, Watertown, Sd, 57201
Mailing address
1928 Calvin Dr, Watertown, SD, 57201
Points of contact for Sentry LLC
SAM.gov Points of Contact
Nick
Hendrickson
Government Business POC
1928 Calvin Drive, Watertown, SD, 57201
Lea
Alholinna
Alternate Government Business POC
1928 Calvin Drive, Watertown, SD, 57201
Alexis
Alholinna
Electronic Business POC
Chief Financial Officer
1928 Calvin Drive, Watertown, SD, 57201
Additional contact details may be available
NAICS codes for Sentry LLC
| Code | Description | Small Business |
|---|---|---|
| 236220 PRIMARY | Commercial and Institutional Building Construction | No |
| 236210 | Industrial Building Construction | No |
| 237110 | Water and Sewer Line and Related Structures Construction | No |
|
237120
|
Oil and Gas Pipeline and Related Structures Construction
|
No
|
|
237130
|
Power and Communication Line and Related Structures Construction
|
No
|
|
237310
|
Highway, Street, and Bridge Construction
|
No
|
|
237990
|
Other Heavy and Civil Engineering Construction
|
No
|
|
238110
|
Poured Concrete Foundation and Structure Contractors
|
No
|
|
238120
|
Structural Steel and Precast Concrete Contractors
|
No
|
|
238140
|
Masonry Contractors
|
No
|
|
238190
|
Other Foundation, Structure, and Building Exterior Contractors
|
No
|
|
238210
|
Electrical Contractors and Other Wiring Installation Contractors
|
No
|
|
238220
|
Plumbing, Heating, and Air-Conditioning Contractors
|
No
|
|
238290
|
Other Building Equipment Contractors
|
No
|
|
238910
|
Site Preparation Contractors
|
No
|
|
238990
|
All Other Specialty Trade Contractors
|
No
|
|
321991
|
Manufactured Home (Mobile Home) Manufacturing
|
Yes
|
|
321992
|
Prefabricated Wood Building Manufacturing
|
Yes
|
|
321999
|
All Other Miscellaneous Wood Product Manufacturing
|
Yes
|
|
332311
|
Prefabricated Metal Building and Component Manufacturing
|
Yes
|
|
332312
|
Fabricated Structural Metal Manufacturing
|
Yes
|
|
332322
|
Sheet Metal Work Manufacturing
|
Yes
|
|
332710
|
Machine Shops
|
Yes
|
|
332919
|
Other Metal Valve and Pipe Fitting Manufacturing
|
Yes
|
|
332996
|
Fabricated Pipe and Pipe Fitting Manufacturing
|
Yes
|
|
332999
|
All Other Miscellaneous Fabricated Metal Product Manufacturing
|
Yes
|
|
333132
|
Oil and Gas Field Machinery and Equipment Manufacturing
|
Yes
|
|
335313
|
Switchgear and Switchboard Apparatus Manufacturing
|
Yes
|
PSC codes for Sentry LLC
| Code | Description |
|---|---|
| 2330 | TRAILERS |
| J045 | MAINTENANCE, REPAIR, AND REBUILDING OF EQUIPMENT- PLUMBING, HEATING, AND WASTE DISPOSAL EQUIPMENT |
| J046 | MAINTENANCE, REPAIR, AND REBUILDING OF EQUIPMENT- WATER PURIFICATION AND SEWAGE TREATMENT EQUIPMENT |
|
J056
|
MAINTENANCE, REPAIR, AND REBUILDING OF EQUIPMENT- CONSTRUCTION AND BUILDING MATERIALS
|
|
N041
|
INSTALLATION OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT
|
|
N043
|
INSTALLATION OF EQUIPMENT- PUMPS AND COMPRESSORS
|
|
N059
|
INSTALLATION OF EQUIPMENT- ELECTRICAL AND ELECTRONIC EQUIPMENT COMPONENTS
|
|
R425
|
SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL
|
|
Y1AA
|
CONSTRUCTION OF OFFICE BUILDINGS
|
|
Y1AB
|
CONSTRUCTION OF CONFERENCE SPACE AND FACILITIES
|
|
Y1AZ
|
CONSTRUCTION OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS
|
|
Y1BD
|
CONSTRUCTION OF AIRPORT RUNWAYS AND TAXIWAYS
|
|
Y1BE
|
CONSTRUCTION OF AIRPORT TERMINALS
|
|
Z1DA
|
MAINTENANCE OF HOSPITALS AND INFIRMARIES
|
|
Z1DB
|
MAINTENANCE OF LABORATORIES AND CLINICS
|
|
Z1EB
|
MAINTENANCE OF MAINTENANCE BUILDINGS
|
|
Z1EC
|
MAINTENANCE OF PRODUCTION BUILDINGS
|
|
Z1FB
|
MAINTENANCE OF RECREATIONAL BUILDINGS
|
|
Z1KA
|
MAINTENANCE OF DAMS
|
|
Z2DA
|
REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES
|
|
Z2EB
|
REPAIR OR ALTERATION OF MAINTENANCE BUILDINGS
|
|
Z2EC
|
REPAIR OR ALTERATION OF PRODUCTION BUILDINGS
|
|
Z2ED
|
REPAIR OR ALTERATION OF SHIP CONSTRUCTION AND REPAIR FACILITIES
|
|
Z2EE
|
REPAIR OR ALTERATION OF TANK AUTOMOTIVE FACILITIES
|
|
Z2EZ
|
REPAIR OR ALTERATION OF OTHER INDUSTRIAL BUILDINGS
|
|
Z2FA
|
REPAIR OR ALTERATION OF FAMILY HOUSING FACILITIES
|
|
Z2FB
|
REPAIR OR ALTERATION OF RECREATIONAL BUILDINGS
|
|
Z2FC
|
REPAIR OR ALTERATION OF TROOP HOUSING FACILITIES
|
|
Z2FD
|
REPAIR OR ALTERATION OF DINING FACILITIES
|
|
Z2FE
|
REPAIR OR ALTERATION OF RELIGIOUS FACILITIES
|
|
Z2FF
|
REPAIR OR ALTERATION OF PENAL FACILITIES
|
|
Z2FZ
|
REPAIR OR ALTERATION OF OTHER RESIDENTIAL BUILDINGS
|
|
Z2GA
|
REPAIR OR ALTERATION OF AMMUNITION STORAGE BUILDINGS
|
|
Z2GB
|
REPAIR OR ALTERATION OF FOOD OR GRAIN STORAGE BUILDINGS
|
|
Z2GC
|
REPAIR OR ALTERATION OF FUEL STORAGE BUILDINGS
|
|
Z2GD
|
REPAIR OR ALTERATION OF OPEN STORAGE FACILITIES
|
|
Z2GZ
|
REPAIR OR ALTERATION OF OTHER WAREHOUSE BUILDINGS
|
|
Z2HA
|
REPAIR OR ALTERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES
|
|
Z2HB
|
REPAIR OR ALTERATION OF GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) R&D FACILITIES
|
|
Z2HC
|
REPAIR OR ALTERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) ENVIRONMENTAL LABORATORIES
|
|
Z2HZ
|
REPAIR OR ALTERATION OF GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) ENVIRONMENTAL LABORATORIES
|
|
Z2JA
|
REPAIR OR ALTERATION OF MUSEUMS AND EXHIBITION BUILDINGS
|
|
Z2JB
|
REPAIR OR ALTERATION OF TESTING AND MEASUREMENT BUILDINGS
|
|
Z2JZ
|
REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS
|
|
Z2KA
|
REPAIR OR ALTERATION OF DAMS
|
|
Z2KB
|
REPAIR OR ALTERATION OF CANALS
|
|
Z2KC
|
REPAIR OR ALTERATION OF MINE FIRE CONTROL FACILITIES
|
|
Z2KD
|
REPAIR OR ALTERATION OF MINE SUBSIDENCE CONTROL FACILITIES
|
|
Z2KZ
|
REPAIR OR ALTERATION OF OTHER CONSERVATION AND DEVELOPMENT FACILITIES
|
|
Z2LA
|
REPAIR OR ALTERATION OF AIRPORT SERVICE ROADS
|
|
Z2LB
|
REPAIR OR ALTERATION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
|
|
Z2LC
|
REPAIR OR ALTERATION OF TUNNELS AND SUBSURFACE STRUCTURES
|
|
Z2MA
|
REPAIR OR ALTERATION OF EPG FACILITIES - COAL
|
|
Z2MB
|
REPAIR OR ALTERATION OF EPG FACILITIES - GAS
|
|
Z2MC
|
REPAIR OR ALTERATION OF EPG FACILITIES - GEOTHERMAL
|
|
Z2MD
|
REPAIR OR ALTERATION OF EPG FACILITIES - HYDRO
|
|
Z2ME
|
REPAIR OR ALTERATION OF EPG FACILITIES - NUCLEAR
|
|
Z2MF
|
REPAIR OR ALTERATION OF EPG FACILITIES - PETROLEUM
|
|
Z2MG
|
REPAIR OR ALTERATION OF EPG FACILITIES - SOLAR
|
|
Z2MH
|
REPAIR OR ALTERATION OF EPG FACILITIES - WIND
|
|
Z2NA
|
REPAIR OR ALTERATION OF FUEL SUPPLY FACILITIES
|
|
Z2NB
|
REPAIR OR ALTERATION OF HEATING AND COOLING PLANTS
|
|
Z2ND
|
REPAIR OR ALTERATION OF SEWAGE AND WASTE FACILITIES
|
|
Z2NE
|
REPAIR OR ALTERATION OF WATER SUPPLY FACILITIES
|
|
Z2NZ
|
REPAIR OR ALTERATION OF OTHER UTILITIES
|
|
Z2PA
|
REPAIR OR ALTERATION OF RECREATION FACILITIES (NON-BUILDING)
|
|
Z2PD
|
REPAIR OR ALTERATION OF WASTE TREATMENT AND STORAGE FACILITIES
|
|
Z2PZ
|
REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES
|
Update history
2 change(s) tracked
Apr 10, 2026
NAICS 238190 is no longer the primary code
Apr 10, 2026
NAICS 236220 became the primary code
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