Side-by-side comparison of AI visibility scores, market position, and capabilities
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.
Montreal zero-fee nonprofit fundraising platform with $1B+ processed; 100% donation pass-through via optional donor tips competing with Donorbox and Classy for nonprofit fundraising technology adoption.
Zeffy is a Montreal-based fundraising platform for nonprofit organizations that charges zero platform fees on donations — asking donors to optionally contribute a tip to cover Zeffy's operating costs rather than deducting fees from each donation, ensuring 100% of every donated dollar reaches the nonprofit cause. Founded in 2019 by Thibaut Davoult and Nicolas Lafleur, Zeffy has processed $1+ billion in nonprofit donations and provides a comprehensive suite including online donation forms, event ticketing, peer-to-peer fundraising campaigns, recurring donation management, and membership management — giving nonprofits a full fundraising platform at genuinely zero cost.
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