Green Flag
Venture capitalActively deployingWoodland Hills · 12 people tracked
Investment thesis
Green Flag Ventures positions itself as a leading dual-use venture capital firm that is active on the ground. It backs founders building technology that can be field-tested in real-world conditions today and commercialized across global markets in the future. The firm's emphasis on dual-use technology suggests a focus on solutions with both defense and commercial applications, supporting companies that validate their products operationally before scaling internationally.
Source: firm website, verified Aug 3, 2026.
Team · 12 people
from the firm's websiteWhat they invest in
from 3 of 7 portfolio companiesDefense Tech ×3Deep Tech ×2AI & Machine Learning ×1Hardware ×1Robotics ×1
HQs:Estonia×1United States×1
Investments · 7 tracked
founders shown can be your intro pathSwarmer builds AI-driven autonomy software for drones, providing autonomous navigation, real-time combat data, and swarm collaboration for military units.
AI & Machine LearningDefense TechRoboticsAustin, US
Serhii Kupriienko(Executive Officer, Director)Alexander Fink(Executive Officer, Director)
BoardPhilip Wagenheim(Director)
Board seatJustin Zeefe· per SEC Form D
Co-investorsRadius Capital Ventures
AI-powered onboard threat detection and evasive maneuver software that keeps drones alive in contested airspace.
PartnerJustin Zeefe· solo GP
Portable, low-cost, passive anti-radiation targeting and tracking system.
PartnerJustin Zeefe· solo GP
Himera builds secured communication systems designed to operate in environments with electronic warfare and radio jamming, using encryption, mesh/MANET networking, frequency hopping, and blue-force tracking.
Deep TechDefense TechHardware
PartnerJustin Zeefe· solo GP
Portable, cost-effective products for detecting, tracking, jamming, and cataloging enemy UAS.
PartnerJustin Zeefe· solo GP
Cost-effective, autonomous air-to-air interception system to protect cities and critical infrastructure from long-range strike drones.
PartnerJustin Zeefe· solo GP
Teletactica develops video intelligence technology, with a featured product offering long-range (150 km) video intelligence capabilities.
Deep TechDefense Tech
PartnerJustin Zeefe· solo GP
Portfolio news
latest coverage across their companiesHimera · yahoo.com · Dec 18, 2025
Teletactica · arcticstartup.com · Aug 6, 2025
Frequently asked questions
- How many investments has Green Flag made?
- Green Flag has 7 tracked investments, including 1 dated in the last 24 months.
- What sectors does Green Flag focus on?
- Green Flag focuses on AI & Machine Learning, Deep Tech, Defense Tech, Hardware.
- Where is Green Flag located?
- Green Flag is headquartered in Woodland Hills, US.
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