The Week’s 10 Biggest Funding Rounds: A Varied Week For Big Deals, Led By AI And Defense

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. The pace of large-scale dealmaking picked up some this week, led by OpenAI’s disclosure that it raised another $10 billion to add to its record-setting megaround announced last month. Other big financings went to startups and growth-stage companies in sectors including defense tech, enterprise AI, autonomy and even laundry. 1. OpenAI, $10B, foundational AI: OpenAI is raising $10 billion in additional funding for its record-setting megaround announced in late February, reportedly bringing the total fundraise to the San Francisco-based company to over $120 billion. Backers in this latest financing include Andreessen Horowitz, D.E. Shaw, MGX, TPG and T. Rowe Price. 2. Shield AI, $2B, defense tech: San Diego-based defense tech unicorn Shield AI said it secured $2 billion at a $12.7 billion valuation. The round consists of $1.5 billion in Series G funding led by Advent International and JPMorgan Chase along with $500 million in preferred equity financing backed by Blackstone. Part of the proceeds will help pay for the planned acquisition of Aechelon Technology, a defense software company whose technology is used to train pilots and test advanced aircraft and autonomous systems. 3.

Cambridge Mobile Telematics, $350M, transportation safety: Cambridge Mobile Telematics, a telematics and AI company focused on enabling safer mobility, picked up $350 million in a new financing led by The Rise Fund and Allianz X. Founded in 2010, the Cambridge, Massachusetts-based company has raised over $850 million to date, per Crunchbase data. 4. (tied) Harvey, $200M, legal tech: Harvey, the fast-growing provider of AI-enabled tools for law firms and in-house legal teams, closed on $200 million in fresh financing at an $11 billion valuation. GIC and Sequoia Capital led the round, which brings total funding to 4-year-old San Francisco-based Harvey to around $1.2 billion. 4. (tied) eMed, $200M, healthcare: eMed, a provider of GLP-1 programs for employers that counts Tom Brady as chief wellness officer and backer, said it raised $200 million in new funding. Aon Consulting led the round, which set a $2 billion plus valuation for the Miami-based company. 6. Xona, $170M, satellite tech: Xona secured a $170 million Series C round led by Mohari Ventures Natural Capital. The funds will go to scaling satellite production for a planned constellation of next-generation navigation satellites. Founded in 2019, Burlingame, California-based Xona has raised over $320 million to date. 7. Cents, $140M, laundry tech: Cents, a provider of software and payments technology for the laundry industry, secured $140 million in Series C funding led by Sumeru Equity Partners.

The New York-based company said the round represents “the largest single software investment in the laundry vertical to date.” 8. Qualified Health, $125M, AI health tools: Palo Alto, California-based Qualified Health, developer of an enterprise AI platform for health systems, locked up $125 million in Series B financing led by New Enterprise Associates. 9. (tied) DashO, $110M, data observability: Dash0, an agentic observability platform, announced it closed on $110 million in Series B funding led by Balderton Capital. Founded in 2023, the New York-based company has raised over $154 million to date. 9 (tied) Performance Drone Works, $110M, drones: Huntsville, Alabama-based Performance Drone Works, a startup that designs, engineers and manufactures drones for defense and law enforcement, secured over $110 million in Series B funding led by Ondas. Methodology We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the period of March 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 defense tech drones healthcare Legal tech startups transportation unicorn venture Stay up to date with recent funding rounds, acquisitions, and more with the Crunchbase Daily. Among U.S. seed funding deals, it’s only the upper bands of larger and outlier seed rounds — those $10 million and above — that grew in 2025... Over 127,000 workers at U.S.-based tech companies were laid off in mass job cuts in 2025, per a Crunchbase News tally, and the layoffs have continued... Trayd, a startup that is building a back office operating system for the construction industry, has raised $10 million in Series A funding, it tells... San Francisco-based OpenAI has turned to M&A to boost its offerings and stay ahead of its rivals through acquisitions, which total 17 companies in...