Which company raised the most funding in this week's top 10?

Joulent, a Houston-based energy infrastructure startup focused on the demands of artificial intelligence and other compute-intensive industries, raised $1.75 billion（約2800億円） in strategic financing backed by National Grid Ventures.

What was Together AI's valuation after its funding round?

Together AI's Series C round of $800 million（約1300億円） set a post-money valuation of $8.3 billion（約1.3兆円） for the San Francisco-based startup.

What other sectors besides energy and AI saw significant funding?

Biotech, homebuilding, compliance, and professional sports all secured large rounds. Beeline Medicines raised $126 million（約200億円） for autoimmune therapies, Higharc raised $95 million（約150億円） for AI-enabled homebuilding tools, and the Premier Lacrosse League closed a $100 million（約160億円） Series E round.

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U.S. startups raise $5.5B in holiday week, energy and AI lead

Crunchbase News AI2d ago5 min read

Key takeaway

During a shortened holiday week, ten U.S. startups announced major funding rounds totaling $5.5 billion（約8800億円）, with energy and AI infrastructure leading the way. Joulent secured the largest deal at $1.75 billion（約2800億円） from National Grid Ventures for AI-focused energy infrastructure, while Together AI raised $800 million（約1300億円） at an $8.3 billion（約1.3兆円） valuation. The breadth of rounds—spanning compliance tools, biotech, and video AI—reflects diverse investor appetite across compute-intensive and enterprise-focused sectors.

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3 Key Points

What happened
U.S. startups announced their top 10 funding rounds during a truncated holiday week. Joulent, a Houston-based energy infrastructure startup, closed the largest round at $1.75 billion（約2800億円） in strategic financing backed by National Grid Ventures. Together AI, which provides infrastructure for companies running open source AI models, raised $800 million（約1300億円） in Series C funding, setting an $8.3 billion（約1.3兆円） post-money valuation.
Why it matters
Energy and AI companies are commanding the largest capital commitments. The heavy weighting toward AI infrastructure and energy suggests investor focus on compute-intensive industries. For enterprises, this reflects increased availability of funding for compliance tools (LeapXpert raised $180 million（約290億円）), AI-powered software development, and video AI applications.
What to watch
Together AI's $8.3 billion（約1.3兆円） post-money valuation and the full breadth of the top 10 rounds—which also include biotech ($126 million（約200億円） to Beeline Medicines for autoimmune therapies), homebuilding AI ($95 million（約150億円） to Higharc), and professional sports ($100 million（約160億円） to the Premier Lacrosse League)—show capital flowing across multiple sectors.

FAQ

Which company raised the most funding in this week's top 10?: Joulent, a Houston-based energy infrastructure startup focused on the demands of artificial intelligence and other compute-intensive industries, raised $1.75 billion（約2800億円） in strategic financing backed by National Grid Ventures.
What was Together AI's valuation after its funding round?: Together AI's Series C round of $800 million（約1300億円） set a post-money valuation of $8.3 billion（約1.3兆円） for the San Francisco-based startup.
What other sectors besides energy and AI saw significant funding?: Biotech, homebuilding, compliance, and professional sports all secured large rounds. Beeline Medicines raised $126 million（約200億円） for autoimmune therapies, Higharc raised $95 million（約150億円） for AI-enabled homebuilding tools, and the Premier Lacrosse League closed a $100 million（約160億円） Series E round.

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