The Week’s 10 Biggest Funding Rounds: Physical AI Startup Atoms Leads In Varied Week For Large Deals

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This is a weekly feature that runs down the week’s top 10 announced funding rounds in the U.S. Check out last week’s biggest funding deal roundup here.

Startup investors poured capital into a varied lineup of large rounds this week, targeting sectors including physical AI, biotech, cybersecurity, AI infrastructure and fintech. By far the largest financing of the week was a $1.7 billion round for Uber founder Travis Kalanick’s physical AI startup, Atoms, followed by sizable investments for 3D AI model developer Meshy AI and battery technology company Sila.

1. Atoms, $1.7B, physical AI: Atoms, the physical AI startup founded by Uber founder Travis Kalanick, raised $1.7 billion in a funding round led by Andreessen Horowitz. Kalanick touted the Los Angeles-based company’s vision as “about the coming industrial revolution where large industrial economic sectors get completely digitized.”

2. Meshy AI, $400M, AI for 3D: Silicon Valley-based Meshy AI, a startup developing foundation models for AI-powered 3D generation, closed on $400 million in Series B funding at a $1.5 billion valuation. Lead backers include Monolith Capital, IDG Capital and Matrix Partners China, per Crunchbase data.

3. Sila, $300M, battery technology: Battery technology company Sila secured $300 million in a new round led by Atreides Management and Sutter Hill Ventures. The Alameda, California, company will use the funding to expand its silicon anode plant in Moses Lake, Washington.

4. Etched, $300M, inference technology: Etched, a co-designer of chips, racks, software and manufacturing methods for use in frontier models, picked up $300 million in Series C funding. Sequoia Capital led the round, which set a $10 billion pre-money valuation for the San Jose, California-based company.

5. Augustus, $180M, fintech: Augustus, a startup aimed at providing financial institutions around the world direct access to dollar accounts, secured $180 million in Series B funding. Tiger Global led the round, which set a $1 billion valuation for the San Francisco-based company.

6. Cathedral, $160M, defense tech: Cathedral, a startup aimed at expanding U.S. military cyber capabilities, reportedly raised $160 million with backing from Sequoia Capital and Andreessen Horowitz. The Washington, D.C.-based startup was reportedly founded by a ​team of former DOGE employees.

7. Crystalys Therapeutics, $130M, biotech: Crystalys Therapeutics, a biotech developing therapies for people living with gout, closed an oversubscribed $130 million Series B round. Frazier Life Sciences led the financing for the San Diego-based company.

8. Candid Health, $120M, healthcare software: San Francisco-based Candid Health, developer of a revenue cycle management platform for the healthcare industry, landed $120 million in Series D funding led by Sixth Street Growth.

9. Glow, $100M, cybersecurity: Glow, a Palo Alto, California-based AI-powered endpoint security startup, launched from stealth and announced it has raised $180 million to date, of which, per Crunchbase, $100 million comes from its newest financing. Lead backers include Sequoia Capital, Cyberstarts, Greenoaks, and Redpoint.

10. Neo Security, $75M, cybersecurity: Boston-based Neo Security, a startup working on an agentic software control platform for enterprises, picked up $100 million in a new round led by Bessemer Venture Partners and Andreessen Horowitz.

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of July 18-24. Although most announced rounds are represented in the database, there could be a small time lag as some rounds are reported late in the week.

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