RATLOG

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About RATLOG

YC company profile

Reusable heavy-lift rockets

  • YC batch: Fall 2026
  • Founded: 2026
  • Team size: 4
  • Location: Dresden, Germany
  • Country: DE
  • Status: Active
  • Industry: Industrials
  • Stage: Early
  • Tags: Commercial Space Launch
  • YC partner: Kulveer Taggar

Founders

Charlie Weise — Founder/CEO

Founder/CEO at RATLOG (YC F26). YETI G1 Fellow. Previously Research Intern at Aerospace Institute (Technical University Dresden) working on ESA's Argonaut Moon Lander. Co-founded Innuendo, developing an air-breathing cruise missile powered by RDE. Research Assistant at Fraunhofer IWS on ESA space telescope project.

LinkedIn · X

Matty Driesnack — Founder/COO

Founder/COO at RATLOG (YC F26). Founding team at Lio (YC S23, a16z), working closely with CEO and COO. MS Business Administration from TU Dresden.

LinkedIn · X

Felix Kelm — Founder/Engineering

Founder/Engineering at RATLOG. Previously Electronics Lead at Innuendo, building an air-breathing cruise missile powered by a rotating detonation engine. Developed PCB since age 16. Electrical Engineering at TU Dresden and Telecommunication at INSA Lyon.

LinkedIn

Paul Kunhart — Founder/CTO

Founder/CTO at RATLOG (YC F26). Designed rocket engine nozzles for ESA's Argonaut lunar lander at Technical University Dresden's Aerospace Institute. Previously co-founded Innuendo, leading engine design on an air-breathing cruise missile powered by a rotating detonation engine. Studying Aerospace Engineering at TU Dresden.

LinkedIn

Source: Y Combinator · Retrieved 2026-11-02. Company information is self-reported on YC.