The Week’s 10 Biggest Funding Rounds: Defense Tech, AI Tools And Infrastructure Lead The Way

CrunchbasePublished Aug 21, 2026

In the week ending August 21, 2026, Castelion led U.S. startup funding with an $800M Series C round for its hypersonic missile tech, valuing it at $13B. Other major rounds included Etched's $700M for AI inference clusters and Higgsfield's $400M for AI video tools.

#ai-inference-clusters #ai-video-creation-platforms #castelion #defense-technology #etched #groq #higgsfield #wispr-flow

The Week’s 10 Biggest Funding Rounds: Defense Tech, AI Tools And Infrastructure Lead The Way

More in Military

Elon Musk Says Ukraine Violated Starlink’s Rules

A NATO drone maker says Ukraine's underground factories hold a lesson for the West. It's learning that firsthand.

Secretive Ukrainian Unit Behind Rapid Expansion of Deep-Strike Campaign