Questdquestd

YC Aviation and Space startups

67 Y Combinator companies in Aviation and Space, 12 of them from the last four batches. Its share of recent batches is 1.5%, up from 1.1% in the four batches before. About 15% are AI companies by YC’s tags.

Signal
Active
Since 2025
19 vs 12 in 2023–24
Acquired or public
n/a
Listed as inactive
n/a

Share of each batch

Aviation and Space companies as a share of each YC batch since 2015.

Newest entrants

Too few Aviation and Space companies are five or more years old to show outcomes.

Building in Aviation and Space?

Open problems and funding on Questd for world of atoms.

World of Atoms problems worth solving

Aviation and Space companies, newest first

67 companies

  • Inflection Space Systems

    Hyperscaling space manufacturing

    Fall 2026Aviation and SpaceLos Angeles, CA, USA
  • Orca Aerospace

    AI spacecraft operators that lives onboard the vehicle

    AI
    Fall 2026Aviation and Space5San Francisco, CA, USA
  • RATLOG

    Reusable heavy-lift rockets

    Fall 2026Aviation and Space4Dresden, SN, Germany
  • Ethos Space Resources

    We make silicon on the Moon, to power everything in space.

    Summer 2026Aviation and Space2Los Angeles, CA, USA
  • Exosat

    Building a neutral, sovereign alternative to Starlink

    AI
    Summer 2026Aviation and Space3San Francisco, CA, USA
  • Skymerse

    Autopilot for Flight Operations

    AI
    Summer 2026Aviation and SpaceSan Francisco, CA, USA
  • Dispatch

    Satellites for Manufacturing in Space

    Spring 2026Aviation and Space4San Francisco, CA, USA
  • General Aviation

    Fixing air traffic control with remote towers

    Spring 2026Aviation and SpaceNew York City, NY, USA
  • AxionOrbital Space

    Foundation models for 24/7 Earth Observation

    Winter 2026Aviation and Space2San Francisco, CA, USA
  • Beyond Reach Labs

    Space solar arrays that grow to the size of a football field in orbit

    Winter 2026Aviation and Space15New York City, NY, USA
  • Galactic Resource Utilization Space, Inc. (GRU Space)

    Moon Hotel -> The Intergalactic Construction Company of Earth

    Winter 2026Aviation and Space5Los Angeles, CA, USA
  • General Astronautics

    Superintelligent space Robots

    Winter 2026Aviation and Space4San Francisco, CA, USA
  • Wardstone

    The Modular Interceptor Platform

    Fall 2025Aviation and Space8Los Angeles, CA, USA
  • F4 Industries

    The GD&T Analysis Platform for Engineering Drawings

    Summer 2025Aviation and Space5San Francisco, CA, USA
  • Cascade Space

    Commercial alternative to the Deep Space Network

    Spring 2025Aviation and Space7San Francisco, CA, USA
  • GroundControl

    Vertical AI for highly-regulated manufacturing

    Spring 2025Aviation and Space8San Francisco, CA, USA
  • Instinct Space

    Building lunar landers

    Winter 2025Aviation and Space5London, England, United Kingdom
  • Orbital Operations

    High Thrust Space Vehicles for Satellite Defense

    Winter 2025Aviation and Space10Los Angeles, CA, USA
  • Reditus Space

    Reusable Satellites

    Winter 2025Aviation and Space12Atlanta, GA, USA
  • Apolink

    24/7 satellite connectivity in low Earth orbit

    Fall 2024Aviation and Space7San Francisco, CA, USA
  • Consus

    The fastest and cheapest way to use AI with ITAR or CUI data.

    AI
    Fall 2024Aviation and Space1San Francisco, CA, USA
  • Ares Industries

    Building low-cost cruise missiles

    Summer 2024Aviation and Space2Los Angeles, CA, USA
  • Spaceium Inc

    In-Space Refueling

    Summer 2024Aviation and SpaceOttawa, ON, Canada
  • Starcloud

    Data centers in space

    AI
    Summer 2024Aviation and Space12Seattle, WA, USA

Sector is YC’s own label in its public company directory. See the methodology, every sector side by side, or browse open problems worth solving.