← All companies

Wardstone

ActiveHiring

The Modular Interceptor Platform

F25·Fall 2025·Industrials·Los Angeles, CA, USA·Team of 8·Founded 2025

About

Wardstone builds a low-cost, modular interceptor platform for air and missile defense. Our platform enables the warfighter to right sizes their interceptors against the threat. This allows us to defeat air-breathing and ballistic missile threats at a fraction of the cost of exquisite interceptors, adding affordable magazine depth to existing air defense systems.

Founders

  • Sebastian Fischer· Founder/CEO

    I am the cofounder & CEO of Wardstone, a missile defense company building modular interceptors to defend the U.S. and its allies from air-breathing and ballistic missiles. I have 11+ years of engineering and product experience in satellites, drones, and self-driving cars. I held leadership roles at Amazon Prime Air and Cruise Self-Driving and previously worked at Lockheed Martin and NASA on Planetary Spacecraft. I studied Aerospace Engineering at MIT and did a dual MS/MBA degree at Harvard.

  • Tobias Fischer· Founder/CTO

    I am the cofounder of Wardstone, where I lead the technical development of next-generation defense spacecraft. Previously I worked at Astranis, building, launching, and operating geostationary communication satellites. I hold a bachelor's in mechanical engineering from Cornell University. At Cornell, I was the Chief Spacecraft Engineer for a lunar CubeSat mission that demonstrated novel electric propulsion and navigation systems.

Product launches · 1 launch

Change history · 10 recorded

  1. August 30, 2026
    • Launches refreshed08:00 PM
    • Founder profile updated08:00 PM
    • Relocated to Los Angeles08:00 PM
    • YC partner updated08:00 PM
  2. July 28, 2026
    • Website updated07:00 PM
    • Pitch updated07:00 PM
    • Description rewritten07:00 PM
    • Team grew from 7 to 807:00 PM
  3. July 19, 2026
    • Location updated07:00 PM
  4. June 16, 2026
    • Team grew from 5 to 707:00 PM