The Week’s 10 Biggest Funding Rounds: OpenAI Takes The Spotlight With Record-Setting $110B Round

Joanna Glasner jglasner 0 Shares Email Facebook Twitter LinkedIn 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. Illustration: Dom Guzman TagsAI biotech communication fusion healthcare semiconductors startups unicorn venture Stay up to date with recent funding rounds, acquisitions, and more with the Crunchbase Daily. You may also like Defense tech • IPO • Public Markets • Startups • Venture Sector Snapshot: Space Tech Startup Funding Still Flying High Joanna GlasnerFebruary 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... Artificial intelligence • Fintech • Startups Fintech Plaid Completes Tender Offer At $8B Valuation Mary Ann AzevedoFebruary 26, 2026 Fintech infrastructure company Plaid revealed on Thursday that it has completed a new fundraise to provide liquidity to employees at a valuation of... Artificial intelligence • Fintech • SaaS • Startups • Venture How This GV Investor Looks For The Next Stripe And Other ‘Compounding’ Startups In Fintech And AI Mary Ann AzevedoFebruary 26, 2026 Crunchbase News recently spoke with GV partner Elena Sakach to find out more about her investment thesis, her thoughts on what defines winning... Artificial intelligence • IPO • Public Markets • Real estate & property tech • SaaS • Seed funding • Startups • Venture IPOs Are Holding Up In 2026, But SaaS Debuts Aren’t Happening Joanna GlasnerFebruary 25, 2026 While the first couple months of the year brought a steady stream of market entries from companies in sectors such as construction tech, space tech...