Shield Capital
VC Fund
San Francisco, United States
Shield Capital is a venture capital firm that invests in founders building frontier technologies. Shield Capital is a team of veteran investors, founders, and national security leaders focused on helping founders build solutions in cybersecurity, AI, space, and autonomy for commercial and government enterprises.
- Total investments:
- 53
- Last investment:
- Lead investor:
- 45%
- Fund size:
- $186M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Shield Capital invests in
Stages Shield Capital invests in
Countries Shield Capital invests in
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Investment Focus
Industry
- Software 9 (17%)
- Artificial Intelligence 9 (17%)
- Information Technology 8 (15%)
- Cyber Security 5 (9%)
- Machine Learning 5 (9%)
Stage
- Series A 15 (28%)
- Seed 9 (17%)
- Series B 9 (17%)
- Funding Round 3 (6%)
- Pre-Seed 1 (2%)
Country
- United States 25 (47%)
- Israel 1 (2%)
- The Netherlands 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
John Serafini
Venture Partner
|
Venture Partner | Total investments: 4 | Find email | |
|
Michael Brown
Partner
|
Partner | Total investments: 0 | Find email | |
Michael Brown
Partner
|
Partner | Total investments: 6 | Find email | |
Philip M. Bilden
Founder and Managing Partner
|
Founder and Managing Partner | Total investments: 2 | Find email | |
Raj Shah
Managing Partner
|
Managing Partner | Total investments: 11 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Ent.AI is an end-to-end platform that enables organizations to rapidly build world-class AI models and applications. They provide video and image annotation, text and document annotation, 3d point cloud annotation, and data sourcing. Cloud-hosted deep learning models that provide human-like interpretation of video, image, audio and text. | $100M / Seed / Jun 16, 2026 | ||
| Welcome to the new edge. Armada is the world’s first full-stack edge computing platform, revolutionizing connectivity, compute, and AI solutions where they’re needed most - anywhere on Earth. | $230M / Series B / May 19, 2026 | ||
| Star Catcher creates first energy grid for space. Star Catcher's orbital infrastructure will transform how satellites are powered. | $65M / Series A / May 12, 2026 | ||
| Autonomous Cyber is an artificial intelligence platform for cybersecurity solutions. | $12M / Seed / May 05, 2026 | ||
| Starfish Space is a space technology company focused on developing infrastructure for in-orbit satellite servicing and maintenance. It designs autonomous spacecraft, particularly its Otter vehicle, which can rendezvous with, dock to, and interact with satellites already in orbit. The company’s technology enables services such as extending theoperational life of satellites, repositioning them, and safely removing defunct satellites or debris from space. Its systems rely on advanced robotics, navigation software, and electric propulsion to perform precise proximity operations in orbit. Through these capabilities, it aims to make satellite servicing more affordable and scalable, supporting the long-term sustainability and growth of space activities. | $111.7M / Series B / Apr 07, 2026 | ||
| Seifert Dynamics L.L.C. develops operational software and infrastructure systems engineered for demanding environments where reliability, continuity, and disciplined execution are foundational requirements. The company focuses on real‑time data synthesis across distributed operational contexts, structured situational awareness, resilience andcontinuity planning, and support for complex infrastructures with traceability and accountability built into system design. Seifert Dynamics works with organizations in critical infrastructure, industrial operations, logistics, public sector support, and defense‑adjacent sectors, helping them maintain operational clarity and robustness under pressure. The company’s philosophy emphasizes engineering discipline, operational longevity, and integration readiness over transient features or superficial metrics. | $13.4M / Series A / Apr 05, 2026 | ||
| TENEX.AI is an automation-first security company designed for the AI-driven era. By leveraging cutting-edge artificial intelligence, TENEX.AI automates and enhances security measures to protect digital assets, networks, and data. Their solutions are built to address modern threats in real-time, providing proactive defense and rapid response. As thelandscape of cyber threats evolves, TENEX.AI ensures businesses stay one step ahead with intelligent, automated security solutions that minimize risks and maximize protection. | $250M / Series B / Mar 31, 2026 | ||
| Seifert Dynamics L.L.C. develops operational software and infrastructure systems engineered for demanding environments where reliability, continuity, and disciplined execution are foundational requirements. The company focuses on real‑time data synthesis across distributed operational contexts, structured situational awareness, resilience andcontinuity planning, and support for complex infrastructures with traceability and accountability built into system design. Seifert Dynamics works with organizations in critical infrastructure, industrial operations, logistics, public sector support, and defense‑adjacent sectors, helping them maintain operational clarity and robustness under pressure. The company’s philosophy emphasizes engineering discipline, operational longevity, and integration readiness over transient features or superficial metrics. | $3.3M / Seed / Mar 28, 2026 | ||
| UFORCE is a defence technology business that specialises on combat-proven unmanned systems for air, ground, and marine operations. | $50M / Seed / Mar 05, 2026 | ||
| Chariot Defense is developing the sophisticated hardware and software framework to address the military's most pressing problem: the distribution, control, and transformation of energy into power on the contemporary battlefield. | $34M / Series A / Feb 25, 2026 | ||
| See all 53 investments → | |||
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FAQ
What does Shield Capital invest in?
Shield Capital invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Series A and Seed stage. Most of the 53 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Shield Capital?
Public channels for Shield Capital include LinkedIn, X (Twitter) 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 Shield Capital?
The team at Shield Capital includes John Serafini (Venture Partner), Michael Brown (Partner) and Michael Brown (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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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