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Apollo Atomics, Inc. launch: what they're building and where to launch next

What they're building

We make the most compact nuclear reactors

Batch
Y Combinator Spring 2026
Industry
Industrials
Based
Boston, MA, USA

Founders

apolloatomics.com ↗

See their funding details ↗

Apollo Atomics, Inc. on the record

What they shipped

  • Its own site describes it as: "Building the Most Power-Dense Nuclear System" (source)

Who is behind it

  • Assil Halimi, Founder/CEO: Founder at Apollo Atomics, Inc. (YC P26). PhD in Nuclear Engineering from MIT with 15 peer-reviewed publications and 2 patents on reactor design and fuel optimization. Previously reactor operator at Engie (Belgium's nuclear operator) and advanced reactor designer at EDF (world's largest nuclear operator). Worked with Westinghouse, NuScale, Rolls-Royce on PWR development. (source)
  • Drew Walker, Founder/COO: Co-Founder & COO of Apollo Atomics (YC P26). He previously co-founded Blue Innovations Group, an electric boat startup, and served in the White House. He holds a B.A. in Political Science from George Washington University.​​​​​​​​​​​​​​​​ (source)

Timeline

  1. 2026-05-29: "Launch YC: Apollo Atomics: The Modern Nuclear Company" posted to Hacker News by tim333, 2 points and 1 comment. (source)

Other Industrials and energy launches on FoxPlug

Where else to launch Apollo Atomics, Inc.

  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • BetaList ↗
    Self-promotion allowedPaid
    Audience: Directory listing surface; cold readers scanning categories
  • CoFoundersLab ↗
    Self-promotion allowed
    Audience: Directory listing surface; cold readers scanning categories
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Invincible Product Hunters (Global) ↗
    Self-promotion allowed, within the community's rules
    Audience: Telegram channel readers; URL-first, attention-light
  • Launching Next ↗
    Self-promotion allowedFree, with paid options
    Audience: Directory listing surface; cold readers scanning categories
  • LaunchPedia ↗
    Self-promotion allowed
    Audience: Directory listing surface; cold readers scanning categories
  • MicroLaunch ↗
    Self-promotion allowedFree, with paid options
    Audience: Directory listing surface; cold readers scanning categories

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Featured on FoxPlug: Apollo Atomics, Inc.