
Castelion Hits $13B Valuation in $1B Series C
US defense startup Castelion raises $1B Series C at a $13B valuation, co-led by JPMorgan, a16z, and Carlyle, to mass-produce its Blackbeard low-cost hypersonic strike missile for the US military.
Daily Digest
Daily Digest
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US defense startup Castelion raises $1B Series C at a $13B valuation, co-led by JPMorgan, a16z, and Carlyle, to mass-produce its Blackbeard low-cost hypersonic strike missile for the US military.

US orbital infrastructure startup Starcloud raises a $250M extension to its Series A to build and operate data centers in space as terrestrial launch capacity tightens.

Toronto AI biotech Biossil exits stealth with $70M co-led by Founders Fund and OpenAI to acquire and rescue failed drug candidates using large language models, with several molecules already in clinical trials.

US autonomous pentesting startup Horizon3 raises $250M Series E at a $2B+ valuation, co-led by NightDragon and NEA, to lead the emerging "AI vs. AI" era of cybersecurity.

AI model-routing startup OpenRouter acquired by Stripe for over $7B — more than 5x its $1.3B valuation from just three months earlier.

British defense-tech startup Agon exits stealth with $30M led by Lux Capital and Northzone to build synthetic virtual battlefields where autonomous weapons and counter-drone systems train against adaptive AI adversaries.

UK cybersecurity startup Prevalent AI, originally spun out of GCHQ, raises £16M in its first primary capital in nine years to map fragmented enterprise data into security knowledge graphs.

Boston biotech Beeline Medicines raises a $126M Series A extension backed by Bain Capital and Bristol-Myers Squibb to advance precision therapies for autoimmune and inflammatory diseases.

Semiconductor chiplet interconnect startup Eliyan raises $145M to commercialize its high-bandwidth die-to-die connection technology for next-generation AI chips.

AI startup Simile, which builds systems that replicate human decision-making, raises $200M+ Series A led by Index Ventures.

Preventive health diagnostics platform Function Health raises $450M from General Catalyst, following three acquisitions including AI imaging startup Ezra.

Live-shopping marketplace Whatnot raises $545M Series G at a $20B valuation as it expands its creator-driven commerce model globally.