Issue #59 • December 9, 2025
Hi Seedradar Squad! This week, the landscape shifted with a massive acquisition and a surge in kinetic defense technology. IBM made a definitive move to own the central nervous system of hybrid cloud by snapping up Confluent in a monumental deal.
Simultaneously, national security capabilities accelerated as Castelion secured huge backing to build a new campus for manufacturing hypersonic missiles. Plus, we spotlight Multifactor, a YC-backed startup building the essential "identity layer" that lets AI agents securely access sensitive accounts without ever needing a password.

📈 Important News of the Week!
• Castelion secured $350 million led by Altimeter and Lightspeed to scale production of its "Blackbeard" hypersonic missile system. The funding will support a new manufacturing campus in New Mexico to modernize US defense capabilities. - Read More
• IBM announced a definitive agreement to acquire Confluent for $11 billion to strengthen its hybrid cloud and AI portfolio. The deal positions Confluent's data streaming platform as the central nervous system for IBM's enterprise AI offerings. - Read More
• Airwallex raised $330 million led by Addition to accelerate its US expansion and AI product development. Airwallex also announced the establishment of a dual headquarters in San Francisco to cement its foothold in the American market. - Read More
• NextEra Energy announced a strategic partnership with Google Cloud to develop gigawatt-scale data center campuses powered by renewable energy. Google will also provide AI technology to optimize NextEra's grid operations. - Read More
🌱 The Next Big Thing: Our Startup Pick!

🎯 This Week's Emerging Star: Multifactor
Multifactor, a Y-Combinator-backed startup that is revolutionizing identity security by enabling credential-less access for both humans and AI agents. The company uses post-quantum cryptography to create secure, shareable links with granular permissions, allowing users to grant access to accounts—like banking or email—without ever revealing the underlying password.
By solving the critical security gap of "Agentic AI" needing access to sensitive systems, Multifactor's platform provides the necessary guardrails for the autonomous future. This infrastructure allows enterprises to safely deploy AI agents at scale, making Multifactor a startup worth watching very closely. —especially following their recent $15M seed round led by Nexus Venture Partners.
🔥 Igniting the Future: Seedradar Ventures Syndicate!

At Seedradar Ventures, we back relentless founders at the earliest stage, investing in teams solving big problems with solutions that deliver a 10–20x greater impact.
Our syndicate offers investors access to a curated pipeline of early-stage startups, sourced through our network.
🚀 Startup Radar: Movers, Shakers & Future Makers
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🛠️ Trending AI Tools to Supercharge Your Workflow!
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💼 Join the Revolution: Hot Startup Jobs!
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💼 Resource of the Week!
📝 Startup Funding: The Definitive Guide

A complete playbook for raising capital in the new year, covering AI investor priorities, data moats, and non-dilutive funding options like grants and revenue-based financing.
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Disclosure: Seedradar Ventures and/or its general partner may hold investments in some of the companies mentioned in this newsletter. This content is provided for informational purposes only and should not be considered investment advice.

