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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 the biggest funding rounds of last week here.

The pace of large-scale startup fundraising slowed a bit this week, with no giant late-stage rounds for GenAI unicorns. However, we did see a good bit of funding activity in the fintech area, led by business payments platform Airwallex, along with some healthcare- and AI-related dealmaking.

1. Airwallex, $300M, fintech:Business payments platform Airwallex closed on $300 million at a $6.2 billion valuation. The financing includes $150 million in Series F funding and another $150 million for secondary share purchases for the San Francisco-headquartered company, which was founded in 2015 in Melbourne, Australia.

2. Awardco, $165M, HR tech:Awardco, a platform for employee rewards and recognition, raised $165 million in a Series B round backed by Sixth Street and Spectrum Equity. The financing set a valuation of over $1 billion for the Salt Lake City-based company, which was founded in 2012.

3. LMArena, $100M, AI:San Francisco-based LMArena, which describes itself as an open community platform for evaluating AI models, secured $100 million in seed funding. Andreessen Horowitz and UC Investments led the financing.

4. Monarch Money, $75M, personal finance:Monarch, a personal finance platform offering budgeting and planning tools for consumers, closed on $75 million in Series B financing. FPV Ventures and Forerunner Ventures led the round for the 6-year-old Covina, California-based startup.

5. (tied) Siro, $50M, sales:New York-based Siro, a mobile app for tracking in-person sales performance, raised a $50 million Series B round led by SignalFire. Founded in 2020, Siro had previously raised $18 million from backers including Index Ventures and Fika Ventures.

5. (tied) RevenueCat, $50M, subscription management:San Francisco-based RevenueCat, a platform for managing subscription apps, raised $50 million in a Series C led by Bain Capital Ventures. Founded in 2017, the company says its tools are currently used to help power over one?third of all new subscription apps worldwide.

7. Slash, $41M, fintech:Slash, a San Francisco-based banking platform for online businesses that offers checking accounts and payment cards, raised $41 million in Series B funding. Goodwater Capital led the round, joined by Menlo Ventures and NEA, setting a $370 million valuation for the 5-year-old company.

8. Fore Biotherapeutics, $38M, cancer therapeutics:Philadelphia-based Fore Biotherapeutics, a developer of therapeutics for hard-to-treat cancers, raised $38 million in Series D-2 financing. Founded in 2011, the financing brings total funding to date to more than $200 million, per Crunchbase data.

9. DataHub, $35M, AI:Palo Alto, California-based DataHub, an open source platform for metadata on AI and data assets, secured $35 million in Series B funding led by Bessemer Venture Partners. The 4-year-old company says it has seen 6x sales growth for its enterprise service, DataHub Cloud, over the past two years.

10. General Medicine, $32M, healthcare:Salt Lake City-based General Medicine, a platform for consumers to directly access care for specific medical problems, raised $32 million in venture funding led by Matrix. The company’s founders, Elliot Cohen and TJ Parker, previously launched pharmacy startup PillPack.

Methodology

We tracked the largest announced rounds in the Crunchbase database that were raised by U.S.-based companies for the seven-day period of May 17-23. 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

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