Aalo Raises $100 Million in Series B to Build its First Nuclear Power Plant, Aalo-X

Aalo, led by Matt Loszak(CEO), Yasir Arafat(CTO), and others, has secured a $100 Million Series B funding led by Valor Equity Partners, with participation from new and existing investors including Fine Structure Ventures, Hitachi Ventures, Crosscut, NRG Energy, Vamos Ventures, Tishman Speyer, Kindred Ventures, 50Y, Harpoon Ventures, Crescent Enterprises, Alumni Ventures, MCJ, Gaingels, Perpetual VC, and Nucleation Capital, among others.

Funding is now in place to build the Aalo-X, an advanced nuclear power plant set to reach zero-power criticality by next summer—potentially the first of its kind to come online in the US in decades. Unlike a test reactor, Aalo-X will generate electricity. Beside it, an experimental data center will be built, marking the first co-location of its kind and showcasing a model for future GW-scale deployments.

Fleet-deployed, factory-built nuclear is the most efficient way to power AI, fast to deploy, sitable anywhere, low resource use, always-on, and clean. In just 20 months, Aalo has grown from its first hires to completing a 40,000 sqft pilot factory and a full-scale non-nuclear prototype. This speed addresses the biggest concern around nuclear today: that it's too slow.

Aalo aims to rapidly scale clean, reliable nuclear energy to meet the demands of AI and beyond. The strategy begins with proving product-market fit in the data center sector through Aalo-X, followed by mass deployment of modular Aalo Pods. As costs decrease, the technology will expand into broader markets such as municipal utilities, desalination, and industrial heat. A next-generation reactor—around 10 times more powerful—is also in development, with a long-term goal of delivering electricity at 3 cents per kilowatt-hour.