Atonarp vs Stoke Space
Side-by-side comparison of AI visibility scores, market position, and capabilities
Deep-tech sensing company developing mass spectrometry-based molecular sensing instruments for in-situ real-time process gas analysis inside semiconductor fabrication equipment; Osaka Japan and San Jose CA;
About
Atonarp is a deep-tech sensing company with headquarters in Osaka, Japan and operations in San Jose, California that develops mass spectrometry-based molecular sensing instruments designed for in-situ, real-time analysis of process gases and chemical environments inside semiconductor fabrication equipment. The company was founded with the premise that semiconductor manufacturing process control is constrained by the inability to measure the actual chemical composition of processes as they occur inside the reactor chamber — current process control relies primarily on indirect sensors like pressure, temperature, and power measurements that correlate with process conditions but do not directly measure the chemical species being deposited or etched. Atonarp's molecular sensing technology provides direct, real-time chemical composition data from inside the process environment, enabling a new class of process control that responds to actual chemical state rather than inferred process conditions.
Kent WA aerospace company developing fully reusable two-stage Nova rocket; $990M total raised with $510M Series D in 2025 from USIT plus Space Force contract competing with SpaceX for medium-lift reusable launch.
About
Stoke Space Technologies is a Kent, Washington-based aerospace launch company developing Nova — the first fully reusable two-stage rocket with both a reusable booster (first stage) and a reusable upper stage (second stage) — targeting the medium-lift launch market with a 4,500 kg to LEO payload capacity at economics enabled by full vehicle reuse rather than expendable second stages. Founded by Andy Lapsa and Tom Feldman (both Boeing engineers) and backed by Y Combinator (W21) with $990 million total raised including a $510 million Series D in September 2025 led by Thomas Tull's US Innovative Technology Fund (USIT), a $260 million Series C in January 2025 led by Breakthrough Energy Ventures, and a US Space Force National Security Space Launch contract award in 2025.
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