Seattle · updated 10 November 2026

Unicorns in Seattle

4 private companies from Seattle valued at $1bn or more, worth $23.3bn combined. 1 are AI companies.

  1. 1
    Helion Energy logo
    Helion EnergyBuilding the world's first fusion power plant$15.5bn
  2. 2
    Outreach logo
    OutreachSales. Valued at $4.4bn (June 2021).$4.4bn
  3. 3$2.3bn
  4. 4
    Starcloud logo
    StarcloudData centers in space$1.1bn

Related lists

Top AI startups in SeattleAI research labs in SeattleStartups hiring in SeattleUnicorns in San FranciscoUnicorns in New York CityUnicorns in Palo AltoUnicorns in Los AngelesUnicorns in Boston

How this list is ranked

By latest reported valuation, from Wikipedia's list of unicorn companies. Ties go to the better-known company. Rebuilt every morning. Methodology · Is your company here? Claim it.