Funding Round · Crunchbase News
The Week’s 10 Biggest Funding Rounds: Large Rounds For AI Infrastructure, Space Tech And Investment Management Lead
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This is a weekly feature that runs down the week’s Top 10 announced funding rounds in the U.S. Check out last week’s biggest funding deal roundup here.
Key facts
- Temporal Technologies, $550M, AI infrastructure: Temporal Technologies, developer of an open source platform for building and operating long-running AI agents and other enterprise systems, secured
- Cornelis Networks, $205M, networking: Wayne, Pennsylvania-based Cornelis Networks, a developer of networking technology for AI and high-performance computing workloads, closed on $205 million in new
- Factory, $200M, AI software development: San Francisco-based Factory, a provider of AI tools for enterprise software development, announced a $200 million funding round at a $5 billion valuation
- 7. (tied) Arcee AI, $150M, foundational AI: Arcee AI, a developer of open-weight AI models, closed on $150 million in Series B funding at a valuation of more than $1 billion
Summary
Want to keep track of the largest startup funding deals in 2026 with their curated list of $100 million-plus venture deals to U.S.-based companies? After a week of multiple billion-dollar-plus rounds, startup investors have reduced the number of zeroes on their funding checks. The remaining list of big rounds featured mostly AI-focused companies in sectors including investment management, networking, coding and marketing as well as some energy and biotech. Temporal Technologies, $550M, AI infrastructure: Temporal Technologies, developer of an open source platform for building and operating long-running AI agents and other enterprise systems, secured $550 million in Series E funding at a $12.55 billion valuation.