General information for Valiant Global Defense Services Inc
Physical address
2355 Dulles Corner Blvd Ste 200, Herndon, Va, 20171
Mailing address
2355 Dulles Corner Blvd, Ste 200, Herndon, VA, 20171
Website
onevaliant.com
Points of contact for Valiant Global Defense Services Inc
SAM.gov Points of Contact
Maggie
Howe
Government Business POC
Electronic Business POC
2355 Dulles Corner Blvd, Ste 200, Herndon, VA, 20171
Matthew
Costantino
Alternate Government Business POC
Alternate Electronic Business POC
2355 Dulles Corner Blvd, Ste 200, Herndon, VA, 20171
Additional contact details may be available
NAICS codes for Valiant Global Defense Services Inc
| Code | Description | Small Business |
|---|---|---|
| 541330 PRIMARY | Engineering Services | No |
| 541199 | All Other Legal Services | No |
| 541512 | Computer Systems Design Services | No |
|
541513
|
Computer Facilities Management Services
|
No
|
|
541611
|
Administrative Management and General Management Consulting Services
|
No
|
|
541612
|
Human Resources Consulting Services
|
No
|
|
541614
|
Process, Physical Distribution, and Logistics Consulting Services
|
No
|
|
541618
|
Other Management Consulting Services
|
No
|
|
541690
|
Other Scientific and Technical Consulting Services
|
No
|
|
541714
|
Research and Development in Biotechnology (except Nanobiotechnology)
|
No
|
|
541715
|
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
|
No
|
|
541990
|
All Other Professional, Scientific, and Technical Services
|
No
|
|
561110
|
Office Administrative Services
|
No
|
|
561210
|
Facilities Support Services
|
No
|
|
611420
|
Computer Training
|
No
|
|
611430
|
Professional and Management Development Training
|
No
|
|
611699
|
All Other Miscellaneous Schools and Instruction
|
No
|
|
611710
|
Educational Support Services
|
No
|
Update history
2 change(s) tracked
Aug 7, 2026
Removed PSC B599 — SPECIAL STUDIES/ANALYSIS- OTHER
Removed PSC R702 — SUPPORT- MANAGEMENT: DATA COLLECTION
Aug 7, 2026
SAM last-updated date: May 4, 2026 → Aug 6, 2026
Debt subject to offset: No → Yes
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