Addon Services LLC
Addon Services LLC is a small business in Alexandria, VA registered on SAM.gov to bid on federal contracts. It has won about $28.4 million in federal prime contracts since fiscal year 2024, according to USAspending.gov.
- UEI
- CZUVDNASMGP5
- CAGE code
- 8AU65
- SAM.gov registration
- Active
Registration details
| Legal business name | Addon Services LLC |
|---|---|
| Unique Entity ID (UEI) | CZUVDNASMGP5 |
| CAGE code | 8AU65 |
| Location | Alexandria, VA |
| SAM.gov registration | Active through Sep 11, 2027 |
| Business started | 2010 |
| Primary NAICS code | 236220: Commercial and Institutional Building Construction |
| Website | www.addonservicesllc.com |
Certifications and business types
- SBA-certified economically disadvantaged WOSB
- SBA-certified women-owned small business
- Minority-owned (self-reported in SAM.gov)
- Small disadvantaged business (self-reported in SAM.gov)
- Women-owned (self-reported in SAM.gov)
- Women-owned small business (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 | $8.4 million |
| FY2024 | $19.4 million |
| FY2025 | $4.1 million |
| FY2026 | $4.9 million |
Its biggest federal customers over the last four fiscal years: Washington Headquarters Services ($19.5 million), National Institutes of Health ($14.7 million), National Oceanic and Atmospheric Administration ($1.4 million), Department of the Army ($1.2 million) and Department of the Navy ($5,000).
Recent contract awards
| Awarded | Agency | What it's for | Amount |
|---|---|---|---|
| Aug 10, 2026 | National Institutes of Health | C115324 - rtp electrical underground distribution repair. Install new mv cable | $4.4 million |
| Sep 30, 2025 | Washington Headquarters Services | Design-build construction services to repair north parking structure at the mark center | $3.8 million |
| Sep 27, 2024 | Washington Headquarters Services | Design-bid-build construction to repair retaining wall | $9.5 million |
| Sep 17, 2024 | Washington Headquarters Services | Design-build construction for upgrade of north rotary road fern vehicle access control… | $3 million |
| Sep 11, 2024 | National Institutes of Health | C115956 - hvac, electrical and architectural renovations to self service store [24-004628] | $712,822 |
| Aug 22, 2024 | National Institutes of Health | Nih_c200097 - building 101, f module, replace ahu-sz-f-ad-10 and ahu-sz-f-ad-11… | $1.5 million |
Figures are prime contract obligations reported to USAspending.gov. Work done as a subcontractor isn't included.
NAICS codes Addon Services LLC is small under
On its SAM.gov registration, Addon Services LLC meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 115310 Support Activities for Forestry
- 237990 Other Heavy and Civil Engineering Construction
- 238990 All Other Specialty Trade Contractors
- 541330 Engineering Services
- 541519 Other Computer Related Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 562910 Remediation Services
- 611519 Other Technical and Trade Schools
Open contracts in Addon Services LLC's NAICS codes
765 open federal opportunities on SAM.gov use a NAICS code Addon Services LLC is small under. These are due soonest.
- SB Set-Aside under Seaport – Battle Watch Support Services for CNIC
Due in 2 daysOct 12, 2026
- Engineering Drawings IDIQ
Due in 2 daysOct 12, 2026
- PAE Maritime Professional Support Services
Due in 2 daysOct 12, 2026
- MSC Engineering Drawings IDIQ
Due in 2 daysOct 12, 2026
- Brand Name Active Navigation or Equivalent Discovery Center VA-27-00000574
Due in 2 daysOct 12, 2026
Similar small businesses
Other small businesses with the same primary NAICS code (236220) that have won federal contracts, starting with Virginia:
- TST Tactical Defense Solutions, Inc., Virginia Beach, VA
- Saw Greenland, LLC, Virginia BCH, VA
- Aleut Construction LLC, Reston, VA
- Mig Gov, LLC, Virginia Beach, VA
- Jade Creek Construction LLC, Herndon, VA
- New Dominion Construction LLC, Dumfries, VA
Frequently asked questions
What is Addon Services LLC's CAGE code?
Addon Services LLC's CAGE code is 8AU65. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Addon Services LLC's UEI?
Addon Services LLC's Unique Entity ID (UEI) is CZUVDNASMGP5. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Addon Services LLC's SAM.gov registration active?
Yes, as of the latest SAM.gov public data, Addon Services LLC's registration is active through sep 11, 2027. Registrations are renewed every year.
Is Addon Services LLC a small business?
Addon Services LLC is registered on SAM.gov as small under 8 NAICS codes. 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.