General information for Royal Duff Enterprises, Inc.
Physical address
1015 Saint Gregory St, Cincinnati, Oh, 45202
Mailing address
1015 Saint Gregory St, Cincinnati, OH, 45202
Points of contact for Royal Duff Enterprises, Inc.
SAM.gov Points of Contact
Olivia
Duff
Government Business POC
Electronic Business POC
President
1015 Saint Gregory Street, Cincinnati, OH, 45202
Additional contact details may be available
NAICS codes for Royal Duff Enterprises, Inc.
| Code | Description | Small Business |
|---|---|---|
| 237130 PRIMARY | Power and Communication Line and Related Structures Construction | Yes |
| 236220 | Commercial and Institutional Building Construction | Yes |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | Yes |
|
517111
|
Wired Telecommunications Carriers
|
Yes
|
|
517112
|
Wireless Telecommunications Carriers (except Satellite)
|
Yes
|
|
517410
|
Satellite Telecommunications
|
Yes
|
|
517810
|
All Other Telecommunications
|
Yes
|
|
541330
|
Engineering Services
|
No
|
|
811310
|
Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
|
Yes
|
PSC codes for Royal Duff Enterprises, Inc.
| 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) |
|
7D20
|
IT AND TELECOM - SERVICE DELIVERY MANAGEMENT (HARDWARE AND PERPETUAL LICENSE SOFTWARE)
|
Update history
2 change(s) tracked
Aug 8, 2026
Added NAICS 238210 — Electrical Contractors and Other Wiring Installation Contractors
Added NAICS 811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Elec…
NAICS 237130 became the primary code
NAICS 517111 is no longer the primary code
Aug 8, 2026
Activation date: Jul 10, 2026 → Aug 7, 2026
Submission date: Jul 8, 2026 → Aug 6, 2026
SAM last-updated date: Jul 10, 2026 → Aug 7, 2026
Registration expiration: Jul 8, 2027 → Aug 6, 2027
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