October 11, 2026 – Axiom’s $2 billion preferred deal and TypeSafe’s $870 million raise topped a $5.07 billion week. AI, power, and energy firms took 83% of it.
In Summary
The ten biggest US rounds announced Oct. 3 to 9 raised $5.07 billion, per Crunchbase data.
Flex agreed to sell $2 billion of Axiom preferred stock at a $37.5 billion enterprise value.
TypeSafe AI raised $870 million at $7.5 billion, led by Andreessen Horowitz.
Power-related firms, including Axiom, Voltus and Type One Energy, raised $2.43 billion.
Global venture funding hit $159 billion in Q3 2026, with AI taking 64%.
AI and the power behind it took most of the money in the week’s biggest funding rounds. The ten largest US rounds announced from Oct. 3 to Oct. 9 raised $5.07 billion, Crunchbase data show. By Catenaa’s count, AI, power and energy deals took $4.2 billion, or 83%.
However, one deal dominated the list. Axiom Solutions International, the cloud and power unit of Flex, accounted for $2 billion, or 39% of the total. Meanwhile, AI startups, a quantum developer, and two energy firms filled most of the remaining slots.
Axiom tops the biggest funding rounds
Flex agreed to sell $2.0 billion of Axiom convertible preferred stock, its release shows. Specifically, the buyers are funds tied to General Catalyst, Koch Equity Development and co-investors. In turn, the deal sets an initial enterprise value of $37.5 billion. Flex then plans to spin Axiom off as a public company in the first quarter of 2027.
The preferred shares pay a 10% annual cash dividend before the split. After that, the rate steps down to 6% in cash or 7% in kind. Proceeds will help fund Axiom’s pending purchase of EPC Power. Once the separation is complete, the investment will sit solely in Axiom, Flex said.
Axiom’s Form 10 information statement helps explain why investors are paying up. Net sales rose 38% to $6.61 billion in the year to March 31, 2026. In the June quarter, sales climbed 35% to $2.20 billion. As a result, the $37.5 billion value equals about 5.7 times trailing annual sales.
Profit is growing, too. Operating income reached $480 million in fiscal 2026, up from $403 million a year earlier. Additionally, the unit employs about 31,000 people, including contractors, across 19 manufacturing sites.
AI model makers command rich prices
TypeSafe AI raised the week’s second-largest round. The San Francisco startup took $870 million at a $7.5 billion valuation, its blog states. Andreessen Horowitz led, while Sequoia Capital and DCVC joined. In addition, a16z partner Martin Casado joins the board. TypeSafe says a third of the 500 largest US companies now use Jev, its decision model.
Arena, which ranks AI models through public votes, raised $200 million at $3.1 billion, its post says. Lightspeed Venture Partners and Khosla Ventures co-led the round. The platform has logged 62 million votes across text, vision, code and other tests. Arena also reports more than $100 million in annualized revenue. That implies a price just under 31 times revenue, far above Axiom’s multiple.
Quantum and energy bets grow
Quantum computing drew the third-largest check. Oratomic has raised $775 million since its March 2026 launch, the company said. The Pasadena firm raised a $300 million Series A in July, so the new money totals about $475 million. Six firms led, including ARCH Venture Partners and Bezos Expeditions.
Energy deals also rounded out the list. Voltus, which pools batteries and flexible demand for grid operators, raised a $225 million Series D. Fusion developer Type One Energy secured a $200 million Series B. Together with Axiom, power-related firms raised $2.43 billion, nearly half the top ten.
Meanwhile, the rest of the list spread across newer AI niches. Data provenance startup SignSplit landed a $400 million seed round at a $1 billion valuation. Chip simulation firm Vinci raised $250 million at a $1.5 billion. Atomic Machines emerged from stealth with $250 million, while AI insurer Ledgebrook raised $200 million. Every one of the week’s biggest funding rounds reached at least $200 million.
How the week fits third-quarter trends
The week extends a run of large checks. Global venture funding reached $159 billion in Q3 2026, Crunchbase data show. That marked a 25% drop from Q2 but a 53% rise from a year earlier. Moreover, AI startups took $102 billion, or 64% of the total. The US alone drew $91 billion, about 57% of global funding.
Billion-dollar rounds also hit a record. Crunchbase counted 27 such deals in Q3, up from 16 in the second quarter. Repeat backers stand out, too. General Catalyst and Khosla Ventures each joined two of this week’s biggest funding rounds.
What to watch next
Two tests lie ahead. First, Axiom’s spin-off will show whether public investors accept a $37.5 billion valuation for an AI power supplier. Before that, the preferred investment still needs customary regulatory approvals to close. Second, model makers such as TypeSafe and Arena must grow into their prices. For now, investors keep paying most for the hardware, power, and software behind AI.
