{"changes":[],"country":"US","description":"Castelion develops affordable hypersonic strike weapons and test vehicles produced via SpaceX-style vertical integration. Customers are the US Department of Defense and allied buyers seeking high-volume hypersonic capabilities. The company plans serial manufacturing rather than the one-off prototypes typical in defense.","domain":"castelion.com","employees":null,"founded":2022,"fundingTotalQuarantined":false,"githubOrg":null,"githubStars":null,"industry":"infra","investors":[],"lat":33.85088,"lng":-118.350906,"location":"El Segundo, USA","name":"Castelion","rounds":[{"amountQuarantined":false,"amountUsd":350000000,"currency":"USD","date":"2025-12-01","investors":[],"leadInvestor":null,"source":{"fact":"round","publisher":"crunchbase","retrievedAt":"2026-05-18","status":"attributed","url":null},"status":"attributed","type":"series-d+","url":null}],"slug":"castelion-com","sources":[{"fact":"round","publisher":"crunchbase","retrievedAt":"2026-05-18","status":"attributed","url":null},{"fact":"existence","publisher":"castelion.com","retrievedAt":"2026-05-18","status":"self-reported","url":"https://castelion.com"},{"fact":"description","publisher":"castelion.com","retrievedAt":"2026-05-18","status":"self-reported","url":"https://castelion.com"}],"stage":"series-b+","techStack":["Cloudflare","PHP 8.0.28","Lenis 1.0.42","reCAPTCHA","Google Analytics G-?GA4:","Google Tag Manager","jsDelivr","DoubleClick Floodlight","WordPress","jQuery","MySQL","textsplitter 9.6.0"],"totalRaisedUsd":553200000,"updatedAt":"2026-05-18"}