The Week’s 10 Biggest Funding Rounds: SiFive Leads With $400M For Custom Chip Designs As Aviation, Biotech And Defense Startups Also Raise Big
$400M. SiFive just raised a massive custom chip design round—and it signals where semiconductor funding is flowing in the AI arms race.
Why it matters
SiFive's $400M round demonstrates continued investor appetite for AI chip infrastructure beyond NVIDIA, with custom silicon design becoming a competitive edge for enterprise AI deployments. This week's broader funding patterns show capital flowing into compute-adjacent sectors (aerospace, defense, biotech) that will drive AI infrastructure demand.
The key facts
5 to knowSiFive leads week with $400M funding round
Focus: custom chip designs for AI/enterprise applications
No billion-dollar rounds in this week's top 10
Capital spread across semiconductors, aerospace, biotech, and defense sectors
Published April 10, 2026 — recent market activity
Go to the source
Crunchbase Newsnews.crunchbase.com
Publisher excerpt: While no billion-dollar rounds led this week’s list, we nonetheless saw a variety of startups in industries ranging from semiconductors to aerospace to biotech raise sizable rounds.