The first week of August produced three United States venture rounds of a billion dollars or more, and the direction of the money is the real story. The biggest checks went to factories, electric power and the security layer for AI agents rather than to model developers.
Zenity closed a $125 million Series C led by Norwest, with SoftBank Vision Fund 2, Qumra Capital, Hitachi Ventures, LG Technology Ventures and existing investors including Vertex Ventures, Third Point Ventures, DTCP and Intel Capital participating. The company, founded in 2021, sells a governance platform that allows, modifies or blocks the actions of AI agents, covering agents built on Microsoft Copilot, ChatGPT Enterprise and Gemini as well as custom systems on AWS Bedrock and Google Vertex AI. Zenity reports more than 230 employees and revenue that has tripled in each of the past two years, with most customers drawn from the Fortune 500 and Global 2000. The new capital is earmarked for expansion in Europe and Asia Pacific and for its vulnerability research arm, Zenity Labs, which probes AI platforms for weaknesses that include zero-click attacks on deployed agents.
Energy absorbed two of the week's three ten-figure rounds. Base Power, the Austin distributed-battery company, raised a $1 billion Series D at a $13 billion post-money valuation from Ribbit Capital, Addition, Valor Equity Partners and JP Morgan Chase. Valar Atomics, the El Segundo nuclear developer, matched it with a $1 billion Series B led by Sequoia Capital alongside a $200 million credit facility. Both companies sell into a grid that datacentre operators increasingly treat as the binding constraint on AI buildout.
The single largest check went to Hadrian, the Torrance developer of automated precision factories, which raised $1.37 billion in Series D funding at a $7.87 billion valuation from a group including WCM Investment Management, Washington Harbour Partners, Valor Equity Partners, 137 Ventures, JP Morgan Chase and Baillie Gifford.
Infrastructure for AI itself kept pulling large sums further down the table. Lumilens, the San Jose connectivity company, announced more than $700 million in new funding from Atreides Management, Bain Capital Ventures, Meritech Capital, Seligman Ventures and Spark Capital. Volta raised a $300 million Series A at a $2.4 billion valuation with Nvidia among its backers, Horizon3 took $250 million for autonomous penetration testing at a valuation above $2 billion, and HappyRobot closed a $150 million Series C for agentic AI in logistics. Mariana Minerals added a $310 million Series B led by Khosla Ventures, putting venture money at the raw-materials end of the same buildout.
If the week's checks are a reliable guide, investors are now funding the bottlenecks rather than the models: power generation, manufacturing capacity, network plumbing and agent control. Whether those bets pay off may depend less on model quality than on how quickly enterprises can actually absorb the machinery being financed.
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