/Companies

RATLOG

YC F26

Dresden, DE · Founded 2026 · 4 employees · 1 known investors

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RATLOG develops reusable heavy-lift rockets for space launch and transport.

Founders & leadership· Y Combinator alumni (F26)

CWCharlie Weise
Charlie WeiseFounder/CEOHe previously interned at the Aerospace Institute of the Technical University of Dresden, contributing to ESA's Argonaut Moon Lander, co-founded Innuendo to develop an air-breathing cruise missile powered by a rotating detonation engine, and worked as a research assistant at Fraunhofer IWS on an ESA space telescope project.
MDMatty Driesnack
Matty DriesnackFounder/COOMatty Driesnack is Founder and COO of RATLOG, and was previously on the founding team at Lio. He holds an MS in Business Administration from TU Dresden.
FKFelix Kelm
Felix KelmFounder/EngineeringHe previously served as Electronics Lead at Innuendo, where he worked on an air-breathing cruise missile driven by a rotating detonation engine, designed PCBs for medical devices at dresden elektronik, and contributed to a printable BioPatch for blood glucose monitoring at TU Dresden's Institute of Fine Measurement Technology; he studied Electrical Engineering at TU Dresden and Telecommunication at INSA Lyon.
PKPaul Kunhart
Paul KunhartFounder/CTOPaul Kunhart is Founder/CTO of RATLOG, an aerospace engineer who designed rocket engine nozzles for ESA's Argonaut lunar lander at TU Dresden's Aerospace Institute. He previously co-founded Innuendo, where he led engine design on a rotating-detonation-engine-powered air-breathing cruise missile, and is studying Aerospace Engineering at TU Dresden.

Investors · 1

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Frequently asked questions

What does RATLOG do?
RATLOG develops reusable heavy-lift rockets for space launch and transport.
Who are RATLOG's investors?
RATLOG's investors include Y Combinator.
Where is RATLOG headquartered?
RATLOG is headquartered in Dresden, DE.