US startups raised at least $3.87 billion across the 12 largest funding rounds in July 2026, according to AlleyWatch's monthly analysis of Crunchbase data. AI infrastructure, quantum computing, and nuclear energy dominated the top of the list, with no company raising less than $200 million to make the cut.
The $200 million floor tells a story on its own. In a month where that sum only gets you twelfth place, the venture market is clearly rewarding deep-tech bets that require serious capital intensity: custom silicon, factory-built reactors, fault-tolerant quantum hardware. Consumer software and fintech, once perennial chart-toppers, are absent from this list entirely.
AI infrastructure leads the pack
Top 25 Countries by Startup Funding 2026 | Global Venture Capital Rankings
Three of the top twelve rounds went to companies building foundational AI tooling rather than applications. Etched, a San Jose chip startup designing silicon optimized for transformer inference, closed $300 million. The round, led by Andreessen Horowitz and Sequoia Capital with participation from SK Hynix and Jane Street Capital, brings Etched's total funding to $925.4 million. Founded in 2022 by Chris Zhu, Gavin Uberti, and Robert Wachen, Etched is betting that purpose-built chips will outperform general-purpose GPUs for large-scale generative AI workloads.
Simile, a Palo Alto company building AI agents for customer interactions, raised $200 million to land at twelfth. Index Ventures and Bain Capital Ventures led the round, joined by CVS Health Ventures and Greenoaks. Simile's founders, Joon Park, Lainie Yallen, and Michael Bernstein, started the company just last year. It has now raised $300 million total.
Meshy AI, based in Sunnyvale, also raised $400 million for its generative 3D platform. The company converts text, images, and sketches into textured, rigged 3D models ready for export, targeting game developers, product designers, and visualization studios.
Physical AI: robotics and quantum enter the top tier
Walden Robotics, a Cambridge startup founded in 2026, matched Etched's $300 million. The company builds wheeled, dual-arm robots for logistics and industrial automation. Its investor roster reads like a strategic wish list: Menlo Ventures, NVIDIA, Boeing, Toyota Ventures, CoreWeave Ventures, and Samsung Ventures all participated. That combination of chip makers, automakers, and aerospace suggests Walden is positioning its robots as a platform play, not a point solution.
Oratomic raised another $300 million for neutral-atom quantum computing. The South Pasadena company, just founded this year, develops fault-tolerant quantum architectures using error correction. General Catalyst, Index Ventures, Khosla Ventures, and Bezos Expeditions backed the round. Notably, quantum physicist Scott Aaronson and his brother David Aaronson both invested personally. Oratomic has now raised $310 million, nearly all of it in this single round.
Logicity's Take
Oratomic's $300 million debut round is the clearest signal yet that quantum computing has crossed from research curiosity to venture-scale infrastructure bet. The company raised almost its entire war chest in one go, suggesting investors see a narrow window to establish hardware leadership before fault-tolerant machines become the standard. For founders in adjacent spaces, the message is clear: if your roadmap requires serious capital before revenue, the market will fund it, but only if you can articulate a defensible position in a winner-take-most category.
Energy bets: nuclear microreactors draw Point72
Antares, a Los Angeles company building factory-produced nuclear fission microreactors, raised $370 million. Point72 Ventures led alongside Paradigm, Caffeinated Capital, and Industrious Ventures. Founded in 2023 by Jordan Bramble and Julia DeWahl, Antares targets defense installations, remote industrial sites, and other applications where grid power is unreliable or unavailable. The company has now raised $471 million.
Antares sits in a growing cohort of nuclear startups chasing modular, deployable designs. Unlike utility-scale reactors that take a decade to permit and build, microreactors aim for factory assembly and rapid deployment. Point72's involvement, alongside Paradigm (better known for crypto bets), signals that crossover investors see nuclear as a viable energy trade.
Tracks the parallel energy trend: fusion startups are also pulling in mega-rounds as investors seek alternatives to fossil fuels.
The full list: July 2026's 12 largest rounds
Here is the complete ranking, based on AlleyWatch's analysis of Crunchbase data. Note that three companies tied at $300 million for the eleventh spot.
- Meshy AI (Sunnyvale) — $400M, AI-powered 3D content generation
- Antares (Los Angeles) — $370M, factory-produced nuclear microreactors
- Etched (San Jose) — $300M, transformer-optimized AI chips
- Oratomic (South Pasadena) — $300M, neutral-atom quantum computing
- Walden Robotics (Cambridge) — $300M, dual-arm logistics robots
- Simile (Palo Alto) — $200M, AI agents for customer communication
The source data from AlleyWatch includes six additional companies that round out the top twelve. The full article provides founding team details, investor breakdowns, and total funding histories for each company.
What the numbers reveal
July's largest rounds cluster around a few themes. AI hardware and infrastructure accounted for at least four of the top twelve. Energy, including both nuclear and the compute-power demands of AI, drove multiple raises. Robotics and quantum computing each placed.
Geography stayed concentrated. Palo Alto, San Jose, Sunnyvale, South Pasadena, Los Angeles, and Cambridge accounted for every company on the partial list. New York, despite AlleyWatch's hometown focus, did not appear in the top six disclosed.
Founding years also stand out. Oratomic and Walden Robotics both launched in 2026 and immediately raised nine-figure rounds. Simile, founded in 2025, hit $300 million total in under two years. Etched, founded in 2022, has now raised nearly a billion dollars. Investors are clearly comfortable backing teams with minimal operating history if the technical thesis is compelling and the founders have relevant track records.
For contrast: how earlier-stage rounds look in the same funding climate.
Strategic investors are everywhere
Nearly every round included corporate venture arms or strategic partners. Walden Robotics pulled in NVIDIA, Boeing, Toyota, Samsung, and CoreWeave. Etched brought in SK Hynix, the South Korean memory giant. Simile attracted CVS Health Ventures. Antares drew Point72 and Industrious Ventures.
This is not new, but the density is notable. Strategic investors typically want distribution channels, supply agreements, or early access to technology. Their presence in nearly every mega-round suggests these startups are already in commercial conversations, not just running R&D labs.
For founders raising their own rounds, the implication is practical: strategic relationships are becoming table stakes for large checks. If your cap table is purely financial VCs, you may be leaving leverage on the table.
What this means for the rest of 2026
July's data suggests the venture market has bifurcated. Deep-tech infrastructure bets are pulling in hundreds of millions per round. Consumer and fintech rounds, if they are happening at this scale, are not making the top twelve.
That does not mean software is dead. It means software at the application layer is not attracting the same mega-check treatment as picks-and-shovels plays. If you are building an AI application, your fundraising path likely runs through smaller rounds and faster revenue milestones. If you are building the infrastructure, the capital is there, but so is the competition.
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Source: AlleyWatch
Huma Shazia
Senior AI & Tech Writer
Produced with AI assistance and reviewed by the Logicity editorial team. Learn more in our Editorial Policy.
