General information for Greycastle Technologies LLC
Physical address
3716 South Compton Ave, St. Louis, Mo, 63118
Mailing address
3716 South Compton Ave, St. Louis, MO, 63118
Website
GREYCASTLETECHNOLOGIESLLC.COM
Points of contact for Greycastle Technologies LLC
SAM.gov Points of Contact
Oluwagbenga
Osiberu
Government Business POC
Electronic Business POC
3716 S Compton Ave, Unit B, Saint Louis, MO, 63118
Additional contact details may be available
NAICS codes for Greycastle Technologies LLC
| Code | Description | Small Business |
|---|---|---|
| 541511 PRIMARY | Custom Computer Programming Services | Yes |
| 541512 | Computer Systems Design Services | Yes |
| 541513 | Computer Facilities Management Services | Yes |
|
541519
|
Other Computer Related Services
|
No
|
|
561790
|
Other Services to Buildings and Dwellings
|
Yes
|
|
611420
|
Computer Training
|
Yes
|
|
722515
|
Snack and Nonalcoholic Beverage Bars
|
Yes
|
|
811490
|
Other Personal and Household Goods Repair and Maintenance
|
Yes
|
|
812990
|
All Other Personal Services
|
Yes
|
PSC codes for Greycastle Technologies LLC
| Code | Description |
|---|---|
| 7A20 | IT AND TELECOM - APPLICATION DEVELOPMENT SOFTWARE (PERPETUAL LICENSE SOFTWARE) |
| 7A21 | IT AND TELECOM - BUSINESS APPLICATION SOFTWARE (PERPETUAL LICENSE SOFTWARE) |
| 7B20 | IT AND TELECOM - HIGH PERFORMANCE COMPUTE (HARDWARE AND PERPETUAL LICENSE SOFTWARE) |
|
7B21
|
IT AND TELECOM - COMPUTE: MAINFRAME (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7B22
|
IT AND TELECOM - COMPUTE: SERVERS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7D20
|
IT AND TELECOM - SERVICE DELIVERY MANAGEMENT (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7E20
|
IT AND TELECOM - END USER: HELP DESK;TIER 1-2,WORKSPACE,PRINT,OUTPUT,PRODUCTIVITY TOOLS (HW/PERP SW)
|
|
7E21
|
IT AND TELECOM - MOBILE DEVICE PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7F20
|
IT AND TELECOM - IT MANAGEMENT TOOLS/PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7G20
|
IT AND TELECOM - NETWORK: ANALOG VOICE PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7G21
|
IT AND TELECOM - NETWORK: DIGITAL NETWORK PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7G22
|
IT AND TELECOM - NETWORK: SATELLITE AND RF COMMUNICATIONS PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7H20
|
IT AND TELECOM - PLATFORM PRODUCTS: DATABASE, MAINFRAME, MIDDLEWARE (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7J20
|
IT AND TELECOM - SECURITY AND COMPLIANCE PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
7K20
|
IT AND TELECOM - STORAGE PRODUCTS (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
|
Y1MG
|
CONSTRUCTION OF EPG FACILITIES - SOLAR
|
|
Z1MG
|
MAINTENANCE OF EPG FACILITIES - SOLAR
|
|
Z1QA
|
MAINTENANCE OF RESTORATION OF REAL PROPERTY (PUBLIC OR PRIVATE)
|
|
Z2MG
|
REPAIR OR ALTERATION OF EPG FACILITIES - SOLAR
|
|
Z2NZ
|
REPAIR OR ALTERATION OF OTHER UTILITIES
|
|
Z2QA
|
REPAIR OR ALTERATION OF RESTORATION OF REAL PROPERTY (PUBLIC OR PRIVATE)
|
Update history
2 change(s) tracked
Jan 2, 2026
NAICS 561790 is no longer the primary code
Jan 2, 2026
NAICS 541511 became the primary code
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