# Astro Mechanica

> Supersonic turboelectric adaptive jet engine and aircraft developer.

## Why it is interesting

Y Combinator aerospace bet on next-gen propulsion — a16z co-led Series A for a turboelectric engine designed to enable efficient supersonic commercial flight.

## Profile

- **Stage:** series-a
- **Status:** private
- **Industries:** defense-tech, space-tech
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Series A (2025): $27.1M co-led by a16z and Lowercarbon Capital with Giant Step; Greylock among participants (Tectonic Defense)
- YC-backed aerospace propulsion startup developing turboelectric adaptive engine (Astro Mechanica site)
- Co-investors not in VCT directory: Lowercarbon Capital, Giant Step Capital

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/greylock-partners

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/astro-mechanica