Addx Corporation
Addx Corporation is a small business in Alexandria, VA registered on SAM.gov to bid on federal contracts. It has won about $36 million in federal prime contracts since fiscal year 2024, according to USAspending.gov.
- UEI
- T4QLGX92KC66
- CAGE code
- 1XPA3
- SAM.gov registration
- Active
Registration details
| Legal business name | Addx Corporation |
|---|---|
| Unique Entity ID (UEI) | T4QLGX92KC66 |
| CAGE code | 1XPA3 |
| Location | Alexandria, VA |
| SAM.gov registration | Active through Aug 6, 2027 |
| Business started | 2002 |
| Primary NAICS code | 541330: Engineering Services |
| Website | www.addxcorp.com |
Certifications and business types
- Service-disabled veteran-owned (self-reported in SAM.gov)
- Veteran-owned (self-reported in SAM.gov)
SBA certifications let a business compete for set-aside contracts. See set-aside contracts explained.
Federal contract history
| Fiscal year | Prime contract obligations |
|---|---|
| FY2023 | $11.9 million |
| FY2024 | $11.8 million |
| FY2025 | $11.2 million |
| FY2026 | $13 million |
Its biggest federal customers over the last four fiscal years: Department of the Air Force ($39.7 million), U.S. Coast Guard ($4.4 million), Federal Aviation Administration ($2.6 million), Defense Information Systems Agency ($1.6 million) and U.S. Patent and Trademark Office ($303,838).
Recent contract awards
| Awarded | Agency | What it's for | Amount |
|---|---|---|---|
| Mar 17, 2026 | Department of the Air Force | Usstratcom facility operations and project management support | $632,506 |
| Dec 19, 2025 | Missile Defense Agency | Scalable homeland innovative enterprise layered defense (shield) initial order. | $500 |
| Nov 14, 2025 | Department of the Air Force | Global accelerated logistics enterprise support system engineering support (ses) for… | $3.2 million |
| Sep 25, 2025 | Defense Information Systems Agency | J-3/5/7 operations and strategic support | $1.6 million |
| Jun 26, 2025 | Federal Aviation Administration | This task order provides training programmatic, technical, and content development… | $1.5 million |
| Mar 12, 2025 | Department of the Air Force | Logistics and technical support services for comsec products section, force protection… | $9.2 million |
Figures are prime contract obligations reported to USAspending.gov. Work done as a subcontractor isn't included.
NAICS codes Addx Corporation is small under
On its SAM.gov registration, Addx Corporation meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 541330 Engineering Services
- 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 522320 Financial Transactions Processing, Reserve, and Clearinghouse Activities
- 523160 Commodity Contracts Intermediation
- 541219 Other Accounting Services
- 541360 Geophysical Surveying and Mapping Services
- 541380 Testing Laboratories and Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541513 Computer Facilities Management Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541612 Human Resources Consulting Services
- 541613 Marketing Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541618 Other Management Consulting Services
- 541620 Environmental Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541720 Research and Development in the Social Sciences and Humanities
- 541990 All Other Professional, Scientific, and Technical Services
- 561210 Facilities Support Services
- 561320 Temporary Help Services
- 561410 Document Preparation Services
And 9 more.
Open contracts in Addx Corporation's NAICS codes
860 open federal opportunities on SAM.gov use a NAICS code Addx Corporation is small under. These are due soonest.
- EVENT AUDIO VISUAL SERVICES
Due in 2 daysOct 12, 2026
- Enterprise Grocery Product Content Creation, Management, and Syndication Software-as-a-Service (SaaS) Solution
Due in 2 daysOct 12, 2026
- Optimized Storage and Replenishment Solution
Due in 2 daysOct 12, 2026
- Steris Service Contract | RFQ | 11/01/26-10/31/31
✦ The VA Network Contract Office 5 wants a contractor to do scheduled preventive maintenance on Steris equipment at the VA Perry Point and Baltimore facilities.
Due in 2 daysOct 12, 2026
- Riverain ClearRead Software in support of the VISN 23 VA Healthcare System.
✦ The VA's Network Contract Office 23 plans to award a sole source firm fixed price contract, under the Federal Supply Schedules, to Riverain Technologies for ClearRead software…
Due in 2 daysOct 12, 2026
Similar small businesses
Other small businesses with the same primary NAICS code (541330) that have won federal contracts, starting with Virginia:
- Mayvin, Inc., Alexandria, VA
- Strategic Alliance Solutions LLC, Fairfax, VA
- STS International, Incorporated, Arlington, VA
- Network Designs, Inc., MC Lean, VA
- KMS Solutions, LLC, Alexandria, VA
- The Mchenry Management Group, LLC, Chesapeake, VA
Frequently asked questions
What is Addx Corporation's CAGE code?
Addx Corporation's CAGE code is 1XPA3. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Addx Corporation's UEI?
Addx Corporation's Unique Entity ID (UEI) is T4QLGX92KC66. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Addx Corporation's SAM.gov registration active?
Yes, as of the latest SAM.gov public data, Addx Corporation's registration is active through aug 6, 2027. Registrations are renewed every year.
Is Addx Corporation a small business?
Addx Corporation is registered on SAM.gov as small under 33 NAICS codes, including its primary code, 541330. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To ask us to remove this page, email hello@fedready.us.