Green Flag Ventures
VC Fund
Green Flag Ventures is a venture capital firm dedicated to nurturing the growth of the Ukrainian tech ecosystem through targeted investments in early-stage startups. With a keen focus on dual-use technology, the firm manages a $20M fund, strategically investing in innovative companies that show potential for both commercial and strategicapplications. Our investment range lies between $150K and $1M, aimed at startups with pre-money valuations of $1M to $25M.Our approach is unique, bridging critical gaps between the Ukrainian and US tech sectors, thereby fostering a vibrant cross-border exchange of ideas, technology, and resources. Co-founded by Justin Zeefe in the USA and Deborah Fairlamb in Ukraine, Green Flag Ventures capitalizes on its founders' diverse expertise and deep understanding of both markets. We offer more than just capital; our portfolio companies gain access to an ecosystem of support, including mentorship, network connections, and operational guidance, ensuring not just growth but also sustainable development.At Green Flag Ventures, we believe in the transformative power of technology and entrepreneurship. Our mission is to be at the forefront of this transformation, empowering Ukrainian founders both at home and abroad. We are committed to achieving superior returns for our investors while playing a pivotal role in the regional growth and stability. Through our proprietary deal flow and rigorous diligence process, we ensure that each investment is poised for outsized growth and favorable outcomes, aligning investor success with regional progress.
- Total investments:
- 10
- Last investment:
- Lead investor:
- 60%
Last updated:
For AI agents: llms.txt
Industries Green Flag Ventures invests in
Stages Green Flag Ventures invests in
Countries Green Flag Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $150k–$2.7M
Investment Focus
Industry
- Software 2 (20%)
- Military 1 (10%)
- Aerospace 1 (10%)
- Manufacturing 1 (10%)
- Public Safety 1 (10%)
Stage
- Seed 6 (60%)
- Series A 1 (10%)
Country
- Ukraine 3 (30%)
- Estonia 2 (20%)
- United States 1 (10%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Deborah Fairlamb
Founding Partner
|
Founding Partner | Total investments: 2 | Find email | |
Justin Zeefe
Founding Partner
|
Founding Partner | Total investments: 3 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| BabAI is the AI pilot for absolute battlefield advantage and turn any platform into a smart, autonomous survivor that operates in all weather conditions. | Seed / Mar 13, 2026 | ||
MaXon Systems
|
MaXon Systems operates as a defense tech company. MaXon Systems develops an autonomous air-to-air defense system. | Seed / Feb 20, 2026 | |
| Himera is a defense technology startup, manufactures communication radio stations. | $2.5M / Seed / Dec 18, 2025 | ||
| Swarmer is an AI based mission control center for coordinated drones that acts as Firmware for video streaming, logging and monitoring. | $15M / Series A / Sep 16, 2025 | ||
| Falcons is a war based company that build, test and scale effective solutions for military. | Seed / Sep 12, 2025 | ||
| TELETACTICA specializes in long-range radio communication systems. Our services include R&D for local businesses, from preliminary samples to final product development. Our priority is to delve deeply into developing new products based on scientific discoveries and meaningful engineering innovation | $1.5M / Seed / Jul 17, 2025 | ||
| Himera is a defense technology startup, manufactures communication radio stations. | $150K / Seed / Oct 11, 2024 | ||
| Swarmer is an AI based mission control center for coordinated drones that acts as Firmware for video streaming, logging and monitoring. | $2.7M / Seed / Sep 01, 2024 | ||
| See all 10 investments → | |||
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FAQ
What does Green Flag Ventures invest in?
Green Flag Ventures invests primarily in Software, Military and Aerospace startups, most often at Seed and Series A stage. Most of the 10 investments tracked by Shizune back companies in Ukraine. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Green Flag Ventures's check size?
Green Flag Ventures typically joins rounds of $150k–$2.7M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Green Flag Ventures participates in.
How do I contact Green Flag Ventures?
Public channels for Green Flag Ventures include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Green Flag Ventures?
The team at Green Flag Ventures includes Deborah Fairlamb (Founding Partner) and Justin Zeefe (Founding Partner). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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