Crusoe, the Denver company that designed and built OpenAI's Abilene campus, announced on September 17 the initial closing of a $3.9 billion Series F at a $30.9 billion post-money valuation, the largest venture transaction of the week and one of the largest ever for a private infrastructure company. The round, which Crusoe described as oversubscribed, was co-led by Atreides Management, Mubadala Capital, and Valor Equity Partners. It arrives roughly ten months after a $1.38 billion raise at a $10 billion valuation in October 2025; Crusoe has tripled its price in under a year.
The syndicate reads less like a startup cap table than a sovereign-wealth roster. Founders Fund, GIC, NVIDIA, the Qatar Investment Authority, Radical Ventures, and TPG were named as significant backers, with more than 30 additional participants including Fidelity, T. Rowe Price, Baillie Gifford, Tiger Global, and SemiAnalysis.
“We believe AI will usher in an era of abundance: new scientific breakthroughs, unprecedented economic growth, and human prosperity,” said Chase Lochmiller, Crusoe's co-founder and chief executive. “Getting there means controlling the infrastructure from electrons to tokens, and we're grateful to have investors who share that conviction. This Series F lets us scale every layer for the world's most ambitious AI builders.”
The numbers Crusoe attached to the announcement explain why investors were willing to pay up. The company reports more than $140 billion in total contracted value across its platform, more than 6 gigawatts of gross contracted capacity across data centers and cloud, and 1 gigawatt already delivered and operational. Crusoe Cloud bookings are up more than 20x year over year, and a managed inference product launched late last year has already contracted more than $100 million in annual recurring revenue. Earlier this month it signed a $13 billion cloud agreement with Jane Street and a multi-year partnership with Perplexity.
The capital is earmarked for what Crusoe calls AI factories, which take two forms. At one end are the vertically integrated mega-campuses like Abilene, Texas, where OpenAI trained its Astra model. At the other are Crusoe Spark units: modular data centers manufactured in Crusoe's own US plants and trucked to wherever spare power exists. Crusoe says this cuts field construction from years to weeks. Lochmiller told the Journal that a plant outside Denver will eventually produce up to a gigawatt of Spark capacity per year, and that units are already running in Reno, Nevada on repurposed electric-vehicle batteries and solar panels supplied by Redwood Materials.
That last detail is not incidental. On the same day as the funding, Crusoe added three independent directors: Cloudflare CFO Thomas Seifert, who will chair the audit committee; former Digital Realty CEO Bill Stein; and Redwood Materials founder JB Straubel, the former Tesla CTO whose company powers the Spark microgrids. Those are the appointments a company makes when it is thinking about public markets.
Investors framed the bet in explicitly industrial terms. “As AI grows, the economics flow to the lowest-cost producer of intelligence. Through a vertically-integrated model, Crusoe owns the entire value chain – a structural advantage that compounds as they build,” said Gavin Baker, managing partner and CIO of Atreides Management. Antonio Gracias of Valor, an investor for nearly six years, said the team had delivered mission-critical AI infrastructure for some of the most sophisticated customers in the world, “earning the market's trust to scale by orders of magnitude.” Ibrahim Ajami, head of ventures at Mubadala Capital, which has invested in every round since 2022, said that “what we've seen so far is only the beginning.”
Not everyone has been comfortable with the breadth of the strategy. The Journal reported, citing people familiar with the conversations, that Crusoe's board has at times suggested narrowing the focus. Lochmiller's own summary is blunt: “We sell data centres, GPUs and tokens,” he told the paper.
Why It Matters
The Crusoe round is the clearest signal yet that the AI compute shortage has stopped being a venture story and become an infrastructure-finance story. A $30.9 billion valuation is not being underwritten on software margins; it is being underwritten on $140 billion of contracted revenue, gigawatts of power, and the sort of long-dated, take-or-pay agreements that utilities and pipeline operators have always used to raise capital. Sovereign funds like Mubadala, GIC, and QIA are buying exposure to a physical bottleneck, not a product bet.
The energy-first framing is what distinguishes Crusoe from the neocloud crowd. Where CoreWeave and its peers rent chips against GPU-backed debt, Crusoe is trying to own the electrons as well, developing its own power plants and partnering across grid, battery, nuclear, thermal, and renewable sources. Straubel, the new director, put the constraint plainly: grid demand is growing faster than infrastructure can keep up, and that bottleneck is real for AI. If he is right, the next winners are not the companies with the most GPUs but the ones that can put a GPU next to a megawatt fastest and cheapest.
There is also a quiet story about inference economics. Lochmiller's observation that serving a model needs far fewer chips than training one is why Crusoe is now building small. If inference demand fragments into hundreds of sites near stranded or off-grid power, the modular factory looks less like a hedge and more like the main product. Rivals are noticing: TAR raised $120 million at a $1 billion valuation for off-grid AI power on September 10.
What to Watch
The word “initial” in the closing announcement matters; expect a second tranche, and watch whether the final round size and the investor list expand further. The board appointments make an IPO filing in 2027 a live question, and the audit-committee chair's arrival is the tell. Track the Denver Spark plant's ramp toward one gigawatt per year, the pace at which 6 gigawatts of contracted capacity becomes delivered capacity, and whether managed inference sustains its trajectory. Finally, watch the tension between Lochmiller's three-layer strategy and a board that has pushed for focus. At $30.9 billion, the market has just voted for breadth.
"Getting there means controlling the infrastructure from electrons to tokens, and we're grateful to have investors who share that conviction."— Chase Lochmiller, Co-founder and chief executive, Crusoe