Quadridox Inc.
Hillsborough, NC
- UEI
- J8EKVLUY96J9
- CAGE
- 83PJ3
- Primary NAICS
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 437 Dimmocks Mill Rd #39, Hillsborough, NC 27278, USA
- Website
- quadridox.com
- Founded
- 2018
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- SIC code
- 38 Instruments & Related Products
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $3,293,699 |
| FY2025 | $1,078,217 |
| FY2024 | $5,299,567 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Homeland Security | $3,293,699 |
Contract awards
Grant awards
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About the company
Quadridox Inc., a North Carolina-based research and development firm, develops X-ray diffraction imaging systems for security screening and medical diagnostic applications, operating exclusively as a prime contractor on federal contracts and grants with no set-aside designations. The company competes on full-and-open procurements.
Quadridox specializes in applied research and experimental development of imaging technology, grounded in three core contract awards from the Department of Homeland Security and one federal research grant. The company's primary federal work centers on explosive detection and threat resolution systems for DHS's Science and Technology Directorate. A $5.68 million definitive contract awarded February 12, 2024, funds development of a low false alarm, high throughput hybrid computed tomography and X-ray diffraction imaging explosive detection system, with place of performance in Durham, NC and completion scheduled for February 11, 2027. A second $2.35 million definitive contract from DHS S&T Directorate, awarded September 30, 2024, addresses tabletop threat resolution using transmitted and diffracted X-rays, running through October 21, 2027. Most recently, the Transportation Security Administration awarded Quadridox a $2.046 million definitive contract on September 30, 2026, for maturation and demonstration of a compact, tabletop X-ray diffraction system for through-barrier alarm resolution, with ultimate completion September 29, 2027. The company also received a federal research grant from the National Institute of Biomedical Imaging and Bioengineering (award date September 8, 2023) for development and evaluation of a combined X-ray transmission and diffraction imaging system for pathology applications, completed in collaboration with Duke University and running through August 31, 2025.
Customer concentration is narrow. The Department of Homeland Security's Science and Technology Directorate and Transportation Security Administration account for three of five total awards and $10 million of the $10.1 million combined potential value across all federal work. The Department of Health and Human Services National Institutes of Health, split between the National Institute of Biomedical Imaging and Bioengineering and the National Cancer Institute, supplies the remaining grant work. All five awards are firm fixed price or cost-plus-fixed-fee, with no task-order vehicles, GWACs, or BPAs in the portfolio.
Three of five awards (combined potential value $10.1 million) face ultimate completion within the next twenty-four months and therefore trigger recompete. SCI-reported invoicing reached $2.8 million in FY2025 against 5.7 FTEs, up from $1.2 million and 2.9 FTEs in FY2024. Across SCI-reportable prime contracts, government-paid rates ran consistently around $203 per hour, with the company self-performing substantially all contractor hours (97% of hours self-performed) and engaging minimal subcontractor support. The company's federal footprint shows nascent activity beginning in 2021, with recent acceleration in 2024 and 2026.
Quick answers
Is Quadridox Inc. registered in SAM.gov?
Yes. Quadridox Inc.'s SAM.gov registration is active through May 19, 2027.
How much has Quadridox Inc. received in federal contracts?
Federal contracts obligated $1,078,217 to Quadridox Inc. in fiscal year 2025 and $9,671,482 in fiscal years 2023 through 2027.
How does Quadridox Inc. rank among federal contractors?
Quadridox Inc. ranked #57 in PSC AJ13 in FY2025.
What is Quadridox Inc.'s most recent federal award?
Quadridox Inc.'s most recent federal contract award is Maturation and demonstration of a compact, tabletop x-RAY diffraction (TTX) system for through-barrier alarm resolution (70T04026C7573N001), from Transportation Security Administration, on September 30, 2026.
On GovTribe
See Quadridox Inc.'s full federal record
- Federal contract awards
- Federal grant awards
- Funding analysis by agency, NAICS and set-aside
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