Where is the company registered?
123 HIGHLAND AVE STE 201, NEEDHAM HEIGHTS, Massachusetts 02494, United States
Registered location from SAM.gov; award performance locations may differ.
Active
Small Business
Overview
- Legal name
- STEALTH BIOTHERAPEUTICS INC.
- Registered location
- NEEDHAM HEIGHTS, MA, USA
- Website
- Company website ↗
- Primary NAICS
- 541714 — Research and Development in Biotechnology (except Nanobiotechnology)
- Latest award activity
- Not available
Read company summary
STEALTH BIOTHERAPEUTICS INC. is associated with UEI W1W8YMMWC3U5 and CAGE 18MZ7 in public federal records. AcornBids currently links 0 prime awards totaling $0 in obligations to this entity. Its primary SAM.gov NAICS is 541714 (Research and Development in Biotechnology (except Nanobiotechnology)). Its public SAM.gov registration lists NEEDHAM HEIGHTS, MA, USA.
At a glance
Lifetime prime obligations$0
Prime awards0
Awards with future end dates0
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Oct 20, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- STEALTH BIOTHERAPEUTICS INC.
- UEI
- W1W8YMMWC3U5
- CAGE
- 18MZ7
- Registered address
- 123 HIGHLAND AVE STE 201, NEEDHAM HEIGHTS, MA, 02494, USA
- Registration status
- Active
- Primary NAICS
- 541714 — Research and Development in Biotechnology (except Nanobiotechnology)
- SAM activation
- Feb 4, 2026
- Initial registration
- May 3, 2024
- Entity start
- Oct 22, 2007
- SAM updated
- Feb 4, 2026
- Registration expires
- Jan 28, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- DE, USA
Research brief
Source facts
- Loaded prime-award records link 0 awards and $0 in reported obligations to this legal entity. Source
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
No matching records in the loaded data.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Feb 4, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | May 3, 2024 |
| Entity start | Oct 22, 2007 |
Registration classifications: Self Certified Small Disadvantaged Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 541714 — Research and Development in Biotechnology (except Nanobiotechnology) | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| JASON MAY | Government business | Contact method not published | SAM registration | Not available |
| DAVE BROWN | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 541714 — Research and Development in Biotechnology (except Nanobiotechnology)
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
About STEALTH BIOTHERAPEUTICS INC.
What is its primary registered industry?
541714 — Research and Development in Biotechnology (except Nanobiotechnology).
Primary SAM.gov NAICS classification.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.
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