Top Funding Rounds of the Week

This week showcased significant investment in various sectors, with seven startups achieving funding of $100 million or more. Notably, cybersecurity and transportation companies attracted substantial investments.

1. Fleetio – $450 Million (Fleet Management)

   Fleetio, based in Birmingham, Alabama, successfully secured a $450 million funding round aimed at acquiring Auto Integrate, a maintenance authorization platform. The round, co-led by Elephant and Goldman Sachs Alternatives, boosts Fleetio’s valuation to over $1.5 billion. Founded in 2011, the company has raised approximately $620 million overall, as recorded by Crunchbase.

2. Mercury – $300 Million (Fintech)

   San Francisco’s Mercury raised a remarkable $300 million in a Series C round led by Sequoia Capital, doubling its previous valuation to $3.5 billion. Established in 2017, Mercury offers integrated bank accounts and has so far raised $452 million.

3. Island – $250 Million (Cybersecurity)

   Island, which specializes in enterprise browsers and is based in Dallas, closed a Series E funding round of $250 million, achieving a soaring valuation of $4.8 billion. The round was led by Coatue Management. Since its inception in 2020, Island has raised a total of $810 million.

4. Aura – $140 Million (Cybersecurity)

   Aura, another player in the cybersecurity space from Boston, procured $140 million in a Series G funding round, led by Ten Eleven Ventures and Madrone Capital Partners. With a focus on family-oriented security solutions, Aura now holds a valuation of $1.6 billion, having raised nearly $663 million since its launch in 2017.

5. Supira Medical – $120 Million (Medical Device)

   Based in Los Gatos, California, Supira Medical secured $120 million in a Series E funding round. New investors Novo Holdings and Qatar Investment Authority spearheaded this round. Since its establishment in 2012, Supira Medical has attracted nearly $241 million in total funding.

6. Nexthop AI – $110 Million (Artificial Intelligence)

   Nexthop AI, an infrastructure provider for artificial intelligence based in Santa Clara, California, raised $110 million, led by Lightspeed Venture Partners. The startup focuses on custom networking solutions for hyperscalers. To date, it has been involved in several significant funding rounds.

7. Also – $105 Million (Transportation)

   Palo Alto’s micromobility firm, Also, emerged from stealth mode with a funding round of $105 million, led by Eclipse Ventures.

8. Heartflow – $98 Million (Healthcare)

   Heartflow, located in Mountain View, California, gathered approximately $98 million by issuing convertible notes, with Fidelity Management & Research Co. as one of the investors. Founded in 2010, the company has raised nearly $891 million.

9. Character Biosciences – $93 Million (Biotech)

   Jersey City’s Character Biosciences has raised $93 million in a Series B round co-led by aMoon Fund and Luma Group, focusing on genomics and AI-driven drug development. Founded in 2018, the company has accumulated $120 million in funding.

10. Omaha Productions – $80 Million (Media)

    Peyton Manning’s entertainment entity, Omaha Productions from Los Angeles, raised $80 million in financing from Patrick Whitesell Holding, attaining a total company valuation of $800 million.

Global Perspective

In addition to the U.S.-based deals, the week’s largest funding round came from the U.K. startup Level, which raised nearly $136 million. This application offers comprehensive financial services, including loans, funding, and legal advice.

Funding Round Tracking Methodology

This overview includes substantial funding rounds publicly reported between March 22 and March 28, 2025, from U.S.-based companies. While most rounds are promptly updated in the Crunchbase database, some may have minor time delays in reporting.