Foundation Stack AI Inc
Foundation Stack AI Inc is a small business in McLean, VA registered on SAM.gov to bid on federal contracts. It has won about $1.3 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI.
- UEI
- YH5VGCNHCGK3
- CAGE code
- 91SD5
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2025 | $1.3 million |
These are every prime contract USAspending.gov records under UEI YH5VGCNHCGK3, from its award search. For a company that is part of a parent company, USAspending's recipient page can show a different figure for a year, because it counts the company's own record and its parent's record separately.
Its biggest federal customers since fiscal year 2024: Department of the Air Force ($1.3 million).
Recent contract awards
New contracts, by the date each was first signed. Orders and changes to older contracts count in the yearly totals above but aren't listed here, and Defense awards appear 90 days after signing.
| Awarded | Agency | What it's for | Obligated |
|---|---|---|---|
| Sep 25, 2025 | Department of the Air Force | Enhanced denied area planning with global vertical obstruction | $1.2 million |
| Jan 30, 2025 | Department of the Air Force | Enhanced aviation mission planning with globalvo (vertical obstructions) | $74,983 |
Figures are prime contract obligations reported to USAspending.gov. Subcontract work is listed separately below.
Subcontract work reported by primes
Prime contractors reported 8 subcontracts to it worth about $6.7 million in the last five years, according to USAspending.gov. Primes only have to report subcontracts of $40,000 or more (since October 1, 2025; $30,000 before that), so smaller jobs are missing. Amounts are net of any cuts primes reported. None of this is in the prime contract figures.
| Prime contractor | For | Subcontracts | Amount | Latest |
|---|---|---|---|---|
| Applied Research Associates, Inc. | Federal Acquisition Service | 7 | $6.6 million | Oct 29, 2026 |
| Booz Allen Hamilton Inc. | Department of the Air Force | 1 | $148,831 | Mar 31, 2025 |
SBIR and STTR awards
Foundation Stack AI Inc has won 2 small business R&D awards worth $1.3 million through the SBIR and STTR programs since 2025, 1 of them Phase II. Funded by Air Force.
| Awarded | Agency | Project | Amount |
|---|---|---|---|
| Sep 25, 2025 | Air Force | SBIR Phase II Enhanced Denied Area Planning with GlobalVO | $1.2 million |
| Jan 30, 2025 | Air Force | SBIR Phase I Enhanced Aviation Mission Planning with GlobalVO | $74,983 |
Award data from SBIR.gov. SBIR and STTR awards are grants or contracts for R&D, so some don't appear in its federal contract history.
Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | Foundation Stack AI Inc |
|---|---|
| Unique Entity ID (UEI) | YH5VGCNHCGK3 |
| CAGE code | 91SD5 |
| Location | McLean, VA |
| SAM.gov registration | Active through Aug 7, 2027 |
| Business started | 2019 |
| Primary NAICS code | 541370: Surveying and Mapping (except Geophysical) Services |
| Website | www.foundationstack.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI YH5VGCNHCGK3 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet.
Check or correct this record at the source: open its SAM.gov entry, or search UEI YH5VGCNHCGK3 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Foundation Stack AI Inc is small under
On its SAM.gov registration, Foundation Stack AI Inc meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 541370 Surveying and Mapping (except Geophysical) Services
- 513210 Software Publishers
- 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 541360 Geophysical Surveying and Mapping Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Open contracts in Foundation Stack AI Inc's NAICS codes
299 open federal opportunities on SAM.gov use one of Foundation Stack AI Inc's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside. Here are a few, those in its primary code first, then those in Virginia, then the soonest due.
- Sources Sought for Architect-Engineer Indefinite Delivery Contract in Support of Geospatial Services for USACE Great Lakes and Ohio River Division
Due in 7 daysNov 13, 2026, 1:00 PM EST
- Architect-Engineering firms for surveying project.
Due in 114 daysFeb 28, 2027, 5:00 PM PST
- Altair SWMR
Due in 4 daysNov 10, 2026, 12:00 PM EST
- F-35 JPO Enterprise Data Science and Analytics Support
Due in 4 daysNov 10, 2026, 5:00 PM EST
- Enterprise Cloud Support Services
✦ NAVSUP Fleet Logistics Center Norfolk wants a small business to run secure cloud, network and Microsoft 365 services for Naval Network Warfare Command, mainly in Suffolk, Virginia.
Due in 6 daysNov 12, 2026, 2:00 PM ESTThe AI summary flags this date. Check SAM.gov.
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (541370) that have won federal contracts in Virginia:
- Mid-Atlantic Surveying & Land Design Inc, Virginia Beach, VA
- Pricus Marine - S T Hudson Engineers JV, LLC, Portsmouth, VA
- Bye UAS Inc, McLean, VA
- Precision Measurements Inc, Virginia Beach, VA
- Environmental Research Incorporated, Front Royal, VA
- Teleqo Technical Solutions Inc., Falls Church, VA
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through Aug 7, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Foundation Stack AI Inc's CAGE code?
Foundation Stack AI Inc's CAGE code is 91SD5. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Foundation Stack AI Inc's UEI?
Foundation Stack AI Inc's Unique Entity ID (UEI) is YH5VGCNHCGK3. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Foundation Stack AI Inc's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Foundation Stack AI Inc's registration is active through Aug 7, 2027. Registrations are renewed every year.
Is Foundation Stack AI Inc a small business?
Foundation Stack AI Inc is registered on SAM.gov as small under 7 NAICS codes, including its primary code, 541370. 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
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- How to become a government subcontractor
- Hiring subcontractors? List small businesses by state, NAICS code and certification
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 report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.