The week's 10 biggest funding rounds: OpenAI takes the spotlight with record-setting $110B round. February 27, 2026 Want to keep track of the largest startup funding deals in 2025 with our curated list of $100 million-plus venture deals to U.S.-based companies? Check out The Crunchbase Megadeals Board. 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. It was going to be a fairly business as usual top 10 list this week until OpenAI decided to disrupt our Friday with news that it raised $110 billion in new funding. Yes, $110 billion. That is so much money, and so record-setting as a private company funding round, that it makes all those other $100 million and $200 million rounds we usually write about look very paltry by comparison. That said, we did nonetheless see a number of these kinds of rounds, in sectors including semiconductors, AI, healthcare and biotech. 1. OpenAI, $110B, artificial intelligence: Generative AI giant OpenAI announced that it has raised $110 billion in new investment at a valuation of $730 billion pre-money, or $840 billion post-money. The deal includes $50 billion from Amazon, $30 billion from SoftBank, and $30 billion from Nvidia. San Francisco-based OpenAI says more investors are expected to join as the round progresses. 2. (tied) MatX, $500M, semiconductors: MatX, a startup that designs custom chips and hardware architectures to support large language models, secured $500 million in Series B funding as it prepares to scale manufacturing. Jane Street Capital and Situational Awareness led the financing for the Mountain View, California-based company. 2. (tied) Vero Networks, $500M, broadband: Boulder, Colorado-based Vero Networks, a fiber infrastructure and broadband internet provider, picked up $500 million in a growth funding round backed by Braemont Capital, Hamilton Lane and Delta-v Capital. 4. Shine Technologies, $240M, fusion: Janesville, Wisconsin-based Shine Technologies, a developer of fusion technologies with applications in the medicine and energy sectors, raised $240 million in equity funding led by NantWorks. 5. Revel, $150M, hardware testing tools: Revel, developer of a software platform for hardware test and control, closed on $150 million in Series B funding. Index Ventures led the financing for the Los Angeles-based company, which plans to expand its offerings across aerospace, defense, robotics and industrial sectors. 6. Honest Health, $140M, healthcare: Nashville, Tennessee-based Honest Health, a provider of tech-enabled tools for primary care providers, secured $140 million in a new financing led by NewSpring. 7. Slate Medicines, $130M, biotech: Slate Medicines, a startup working on therapeutics for headache disorders, announced its launch alongside $130 million in Series A financing. RA Capital Management, Forbion Capital Partners and Foresite Capital led the investment for the Raleigh, North Carolina-based company. 8. Ubicquia, $106M, smart infrastructure: Fort Lauderdale, Florida-based Ubicquia, provider of an analytics platform for smart lighting, grid monitoring and public safety applications, raised $106 million in Series D funding. 67 Capital and Marunouchi Innovation Partners led the financing for the 12-year-old company. 9. (tied) Basis, $100M, AI-enabled accounting: Basis, an AI agent platform for accountants, closed on $100 million in Series B funding at a $1.15 billion valuation. Accel led the round for the New York-based startup, along with Google Ventures, Lloyd Blankfein and Khosla Ventures. 9. (tied) Aalyria, $100M, satellite and network communication: Google spinout Aalyria, a developer of software that configures communications satellites to meet demand, secured $100 million in Series B funding. Battery Ventures and J2 Ventures led the financing for the Livermore, California-based company. 9. (tied) Viture, $100M, smart glasses: Viture, a San Francisco-based maker of extended reality (XR) smart glasses and accessories, says it raised $100 million in a financing led by Legend Capital. Methodology. We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of Feb. 21-27. 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. Stay up to date with recent funding rounds, acquisitions, and more with the Crunchbase Daily. February 27, 2026 Venture funding to companies in Crunchbase space tech and satellite categories hit a high last year of nearly $12 billion. So far, 2026 is off to a... 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Honest Health, a Nashville-based value-based care enablement company, has raised $140 million in a funding round led by NewSpring Healthcare. K2 HealthVentures and existing investors including Rubicon Founders, Oak HC/FT, Welsh Carson Anderson & Stowe, and Durable Capital Partners participated. The physician-led startup partners with health systems and providers to implement value-based payment models through technology-enabled care coordination and quality improvement. Founded in 2021 by Rubicon Founders' Adam Boehler, Abe Sutton and Matt Kim, the company is now led by CEO Rob Bessler, who previously founded Sound Physicians. The funding will support expansion into new markets and partnerships with health systems, provider organisations and payers. Leerink Partners served as financial adviser and Ropes & Gray as legal counsel.

Through its proven expertise in value-based care, Honest Health will empower the Albany Med Health System's physicians, advanced practice providers, and nurses with real-time insights, predictive analytics, and population health management strategies. This approach enables clinicians to focus their time and energy where it matters most - delivering proactive, high-quality care, rather than navigating outdated, volume-driven payment models. "The Albany Med Health System is committed to delivering the highest quality of care to the communities we serve," said Dennis P. McKenna, MD, president and CEO of the Albany Med Health System. "Through our partnership with Honest Health, we are ensuring our providers have access to innovative solutions that enhance patient outcomes, improve operational efficiency, and create a more sustainable future for health care in our region.". With initial focus on traditional Medicare, a key aspect of this partnership includes a shared commitment to clinical and financial accountability, ensuring that both organizations are aligned in delivering measurable improvements in care