Radical
Radical’s StratoSats are autonomous platforms that provide satellite-like services on demand. They fly within Earth’s atmosphere to provide persistent, high performance infrastructure across applications in earth observation, connectivity, and more. Unlike satellites, StratoSats navigate freely without the need for rocket launches or orbits - reducing costs, increasing flexibility, and ensuring customers get the targeted coverage they need.
Y Combinator
yc-company-directory #5242Radical’s StratoSats are autonomous platforms that provide satellite-like services on demand. They fly within Earth’s atmosphere to provide persistent, high performance infrastructure across applications in earth observation, connectivity, and more. Unlike satellites, StratoSats navigate freely without the need for rocket launches or orbits - reducing costs, increasing flexibility, and ensuring customers get the targeted coverage they need.
sourceRadical is classified as Developer tools from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.
Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.
Companies similar to Radical
A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.
Alba Orbital
match 64Alba Orbital is building the world's largest earth observation constellation, imaging everywhere on earth, every 15 minutes. We can see events within minutes such as wildfires in real time and have signed >$85m of LOIs, with both government and commercial customers paying pre-orders for imagery. To date we have launched 62 satellites into orbit (more than any all other yc companies combined), with more launching in 2026 onwards. We have launched a number of technology demonstration imaging satel
shared extracted concept terms: customer; shared product terms: earth, observation, within, customer; shared product theme: sales and marketing; shared affiliation: Y Combinator
Voltair
match 62Voltair is building the world's first globally distributed network of autonomous drones for Earth observation. Power utilities are the perfect first customer. Aging infrastructure and extreme weather drive the need for millimeter-scale inspection data on the power grid. Utilities spend tens of billions of dollars every year just looking at their own equipment. Autonomous drone fleets will enable utilities to inspect 7 million miles of infrastructure more frequently, quickly, and accurately. Our
shared product terms: autonomou, earth, infrastructure, observation; shared product theme: developer infrastructure, sales and marketing; same category: Developer tools; shared affiliation: Y Combinator
Icarus
match 49Icarus is building the modern-day U-2 spy plane. Our autonomous solar aircraft fly at 60,000 feet for weeks at a time, eventually months and years, above weather and below satellites. They deliver persistent intelligence and connectivity for the military at a fraction of the cost of existing systems. The stratosphere is the forgotten frontier.
shared product terms: autonomou, fly, satellite, persistent; shared affiliation: Y Combinator
Eventual
match 48Every breakthrough AI application, from foundation models to autonomous vehicles, relies on processing massive volumes of images, video, and complex data. But today’s data platforms (like Databricks and Snowflake) are built on top of tools made for spreadsheet-like analytics, not the petabytes of multimodal data that power AI. As a result, teams waste months on brittle infrastructure instead of conducting research and building their core product. Eventual was founded in 2022 to solve this. Our m
shared extracted concept terms: like; shared product terms: application, autonomou, like, infrastructure; shared product theme: developer infrastructure; shared affiliation: Y Combinator
Terark
match 46Terark built a new storage engine for Database and Data Systems. Our technology enables direct search on highly compressed data, with 200X faster read performance and more than 10X storage savings (better than Google's LevelDB, Facebook's RocksDB), getting larger scalability with lower cost for big data applications. Alibaba is our paying customer, and we are a YCombinator company.
shared product terms: performance, cost, application, customer; shared product theme: developer infrastructure, sales and marketing; same category: Developer tools; shared affiliation: Y Combinator
Rudus
match 46Rudus is an AI-powered takeoff and estimation platform enabling concrete contractors to win 3x more projects yearly. It automatically identifies every concrete structure like footings, walls, columns, and slabs on plans, eliminating the manual work and reducing estimation time by 70%. Concrete is the most-used material on earth after water, and demand is surging with the AI infrastructure boom.
shared product terms: like, reduc, earth, demand; shared product theme: developer infrastructure; shared affiliation: Y Combinator