The Week’s 10 Biggest Funding Rounds: AI, Energy And Biotech Lead The Way

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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. U.S. startups announced sizable funding rounds at a steady clip during a truncated holiday week, with energy and AI leading the way. Houston-based energy startup Joulent secured the biggest round, a $1.75 billion strategic financing, followed by Together AI, a developer of infrastructure for companies running open source AI models, and LeapXpert, a provider of compliance tools for enterprises. Other big rounds were for companies focused on therapeutics, homebuilding, and even lacrosse. 1. Joulent, $1.75B, energy: Houston-based Joulent, a provider of energy infrastructure focused on the demands of artificial intelligence and other compute-intensive industries, raised $1.75 billion in a strategic investment backed by National Grid through its National Grid Ventures arm. 2. Together AI, $800M, AI infrastructure: Together AI, developer of an infrastructure layer for companies running open source AI models, secured $800 million in Series C financing. Aramco Ventures led the round, which set an $8.3 billion post-money valuation for the San Francisco-based startup. 3. LeapXpert, $180M, compliance: LeapXpert, a provider of tools for tracking enterprise communications for compliance needs, closed on $180 million in growth financing. Riverwood Capital led the financing for the New York-based company. 4.