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California aerospace company developing Duality electric adaptive engine for supersonic trans-Pacific flight; $27.1M raised in 2025 from a16z, Lowercarbon, and United Airlines Ventures as YC W24 company.
Astro Mechanica is a Sebastopol, California-based aerospace company developing the Duality — an electric adaptive engine for supersonic commercial aviation — targeting viable trans-Pacific supersonic flight at commercially sustainable operating costs. Founded in 2020 and backed by Y Combinator (W24) with $27.6 million total raised including a $27.1 million round in April 2025 co-led by Andreessen Horowitz, Lowercarbon Capital, Giant Step, United Airlines Ventures, and Neo, Astro Mechanica's 23-person team aims to demonstrate trans-Pacific supersonic flight within three years.
Columbus IN power technology (NYSE: CMI) at record $34.1B 2024 revenue, net income $3.9B; diesel + hydrogen + electric power solutions, Jennifer Rumsey first female CEO, Accelera EV segment competing with Caterpillar.
Cummins Inc. is a Columbus, Indiana-based power technology manufacturer — publicly traded on the New York Stock Exchange (NYSE: CMI) as an S&P 500 Industrials component — designing, manufacturing, and distributing diesel, natural gas, electrified power, and hydrogen power solutions for commercial trucks, buses, construction and mining equipment, generators, rail, and marine applications through approximately 73,000 employees in 190 countries and territories. In fiscal year 2024, Cummins reported record full-year revenues of $34.1 billion (flat versus 2023), record net income of $3.9 billion ($28.37 diluted EPS), and record EBITDA of $6.3 billion — an exceptional performance given a significant decline in heavy-duty truck build rates in North America, demonstrating the benefit of geographic diversification and product breadth across power segments. Results included gains from the 2023 separation of Atmus Filtration Technologies (NYSE: ATMU) as an independent public company. CEO Jennifer Rumsey — the first female CEO of a major engine company in US history, who assumed leadership in 2022 — leads Cummins' strategic evolution through its Destination Zero strategy: achieving near-zero carbon emissions from Cummins products by 2050 through a portfolio of diesel, natural gas, hydrogen internal combustion engine, hydrogen fuel cell, and battery electric power solutions that allows customers to decarbonize at their own pace based on fuel availability, infrastructure, and economics. Cummins' Accelera (electrification) business unit develops battery systems, fuel cell modules, and e-axles for the zero-emission commercial vehicle transition.
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