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Zachary Dombrowski

Zachary Dombrowski

Managing Director, Equity Capital Markets

Boston skyline

About Zach

Zach Dombrowski is a partner and managing director for William Blair based in the firm’s Boston office. He joined the investment banking team in 2021. Prior to William Blair, he worked for BMO Capital Markets.

Notable Transactions

  • $197,949,762

    Initial Public Offering

    February 2026

  • $277,725,000

    Initial Public Offering

    December 2025

  • $294,117,640

    Initial Public Offering

    September 2025

  • $68,027,880

    Follow-On Offering

    November 2024

  • $236,524,995

    Initial Public Offering

    May 2024

  • $365,444,420

    Initial Public Offering

    June 2023

  • $37,211,421

    Block

    December 2023

  • $1,483,870,944

    Initial Public Offering

    October 2023

  • $350,000,028

    Follow-on Offering

    May 2022

  • $556,842,098

    Initial Public Offering

    September 2021

  • $178,500,000

    Initial Public Offering

    October 2021

  • Rigorous pursuit of your success. Every transaction. Every time.

    Our investment bankers are 100 percent committed to your organization’s sustained success. By drawing on our deep industry and product experience as well as our dedicated global resources, we provide advisory and financing services that allow you to capitalize on today’s opportunities and anticipate tomorrow’s challenges.

    More about investment banking at William Blair
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    Equity Capital Markets

    By connecting growth-oriented companies with a network of high-quality, long-term investors, we deliver compelling results for issuers of IPOs, public and confidential follow-on offerings, PIPEs, registered direct offerings, convertibles, and private placements. 

    More about our equity capital markets expertise
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    About William Blair

    William Blair is a premier global partnership with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 30 offices worldwide.*

    • 1935

      Year William Blair was founded

    • 1,950+

      Employees worldwide

    • 154 billion+

      Client assets

    • 90+ Years

      Independent and employee-owned

    • 30+

      Offices worldwide*

    • 650+

      Companies under coverage

    As of December 31, 2025
    *Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Equity.

    More about William Blair affiliated entities

    This content is for informational and educational purposes only and not intended as investment advice or a recommendation to buy or sell any security. Investment advice and recommendations can be provided only after careful consideration of an investor's objectives, guidelines, and restrictions.

    Copyright © 2025 William Blair & Company, L.L.C. | Privacy Terms

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