Six24 Cyber Labs LLC
Gambrills, MD
- UEI
- RX9QEA851822
- CAGE
- 986S6
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
-
- 541330 Engineering Services Primary
- 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)
- 541990 All Other Professional, Scientific, and Technical Services
- 611420 Computer Training
- SAM.gov registration date
- Physical address
- 1522 Winfields Ln, Gambrills, MD 21054, USA
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| DARPA commercial solutions opening (dcso) | Defense Advanced Research Projects Agency | $493,136 | |
| Cyber agents for security testing and learning environments (castle) program. | Defense Advanced Research Projects Agency | $4,173,029 | |
| Base effort (r & d)--SIX24 cyber labs, LLC, "smart intrusion and exploitation agent for enterprise environments (siege). | ACC Aberdeen Proving Ground | $1,608,336 |
About Six24 Cyber Labs LLC
Six24 Cyber Labs LLC, a service-disabled veteran-owned small business (SDVOSB) and veteran-owned small business (VOSB) based in Gambrills, Maryland, develops artificial intelligence toolkits for cyber defense and security testing as a prime contractor to the Defense Advanced Research Projects Agency, operating exclusively on full-and-open (non-set-aside) DARPA awards. The firm is also a self-certified small disadvantaged business and black American-owned minority business; SDVOSB and VOSB certifications expire December 10, 2027.
Six24's federal footprint consists entirely of three DARPA prime contracts, all within the cyber defense and AI-driven security testing domain. The largest award is a $6.4 million cost-plus-fixed-fee contract from August 10, 2023, under the Cyber Agents for Security Testing and Learning Environments (CASTLE) program, tasking Six24 with developing a "Smart Intrusion and Exploitation Agent for Enterprise Environments" (SIEGE) to instantiate realistic network environments and train cyber agents against advanced persistent threats through reinforcement learning. A second CASTLE award of $4.8 million, issued July 1, 2024, extends through August 9, 2027, and covers an AI toolkit designed to simulate and defend network environments using open-source tools capable of modeling over one hundred attack paths and defensive actions annually. The most recent award, a $846,596 firm fixed-price contract dated January 14, 2026, funds commercialization activities under DARPA's Embedded Entrepreneurship Initiative and Commercial Solutions Opening (DCSO) program, including competitive analysis, financing strategies, market engagement, and regulatory compliance planning; this contract completes July 13, 2027.
Customer concentration is absolute: all three awards and the full $12.1 million combined potential value derive from DARPA. Six24 has not competed for sub-awards, holds no IDVs, and maintains no secondary customer relationships in the source data. Combined obligated dollars across all awards total $6.1 million (51% of potential value). All three awards reach ultimate completion within the next twenty-four months and face recompete risk across that window. Work is performed at the Gambrills, Maryland headquarters.
Quick answers
What is Six24 Cyber Labs LLC's UEI?
Six24 Cyber Labs LLC's Unique Entity ID (UEI) in SAM.gov is RX9QEA851822.
What is Six24 Cyber Labs LLC's CAGE code?
Six24 Cyber Labs LLC's CAGE code is 986S6.
What is Six24 Cyber Labs LLC's primary NAICS code?
Six24 Cyber Labs LLC's primary NAICS code is 541330 (Engineering Services).
Where is Six24 Cyber Labs LLC located?
Six24 Cyber Labs LLC's physical address in SAM.gov is 1522 Winfields Ln, Gambrills, MD 21054, USA.
Is Six24 Cyber Labs LLC registered in SAM.gov?
Yes. Six24 Cyber Labs LLC's SAM.gov registration is active through September 18, 2027.
What is Six24 Cyber Labs LLC's most recent federal award?
Six24 Cyber Labs LLC's most recent federal contract award is DARPA commercial solutions opening (dcso) (HR001126CE038), from Defense Advanced Research Projects Agency, on January 14, 2026.
On GovTribe
See Six24 Cyber Labs LLC's full federal record
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- Funding analysis by agency, NAICS and set-aside
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