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RATLOG
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RATLOG is a Dresden-based aerospace startup developing reusable heavy-lift rockets to expand launch capacity for the rapidly growing space industry. The company's breakthrough lies in a novel propulsion architecture that eliminates the turbopump by physically rotating the entire engine, resulting in up to 90% fewer components than conventional rocket engines. This approach enables significantly simpler, faster, and more cost-effective production. Founded by four TU Dresden students and backed by Y Combinator (Fall 2026 batch), RATLOG has already secured $400M in launch reservations and is targeting its first orbital launch between 2029 and 2030.
Company Founded in 2025
Climate / Social Tech