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Mike Siska

Michael Siska

Managing Director, Consumer Products & Services

Chicago skyline

About Mike

Mike Siska is a partner and managing director for William Blair based in the firm’s Chicago office. He joined the investment banking team in 2002. Before William Blair, he worked for Allstate Private Equity, 3i Group, and Andersen Corporate Finance LLC.

Board Membership

A Better Chicago – Leadership Council

Notable Transactions

  • Not Disclosed

    a portfolio company of
    Growth Catalyst Partners

    has been acquired by

    a portfolio company of CVC Capital Partners

    April 2026

    USA
    United Kingdom
    Consumer Products & Services

    William Blair acted as the exclusive financial advisor to Equine Network, a portfolio company of Growth Catalyst Partners, in connection with the pending sale to Global Sport Group, a portfolio company of CVC Capital Partners plc.

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  • Not Disclosed

    has made a majority investment in

    January 2025

    USA
    USA
    Financial Services

    William Blair acted as the exclusive financial advisor to GRAM’s Americas Buyout Fund, the private equity division of GRAM, in connection with its majority investment in UniVista Insurance, a leading distributor of insurance products and services to Hispanic communities in Florida and Texas.

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  • Not Disclosed

    a portfolio company of Gemspring Capital

    has been acquired by

    March 2024

    USA
    USA
    Financial Services
  • Not Disclosed

    a portfolio company of
    Waterland Private Equity

    has been acquired by

    November 2024

    Denmark
    USA
    Consumer Products & Services
  • Not Disclosed

    a portfolio company of
    Falfurrias Capital Partners

    has been acquired by

    November 2024

    USA
    USA
    Consumer Products & Services
  • Not Disclosed

    has acquired

    October 2024

    USA
    USA
    Consumer Products & Services
  • Not Disclosed

    has been acquired by

    November 2023

    USA
    France
    Consumer Products & Services

    William Blair acted as the exclusive financial advisor to Tastes on the Fly, a portfolio company of H.I.G. Capital, in connection with its sale to Lagardère Travel Retail.

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  • Not Disclosed

    has made a
    significant investment in

    a portfolio company of Cortec Group

    March 2023

    USA
    USA
    Consumer Products & Services
  • Not Disclosed

    has been acquired by

    March 2023

    USA
    USA
    Consumer Products & Services

    William Blair acted as the exclusive financial advisor to TileBar, a founder-led business co-owned by the founder and LongueVue Capital, in connection with its sale to AEA Investors LP.

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  • Not Disclosed

    has been acquired by

    November 2022

    USA
    USA
    Consumer Products & Services
  • Not Disclosed

    has been acquired by

    November 2021

    USA
    USA
    Consumer Products & Services
  • Not Disclosed

    has been acquired by

    November 2021

    USA
    USA
    Consumer Products & Services

    William Blair acted as the exclusive financial advisor to Home Brands Group Inc., the parent holding company of Re-Bath, a portfolio company of Webster Equity Partners and Sorenson Capital, in connection with its sale to TZP Group LLC.

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    • 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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    Consumer Products & Services

    Amid rapidly evolving consumer preferences and the proliferation of new brands and channels, our experience and relationships throughout the consumer and retail industry have allowed us to deliver outstanding outcomes for our clients. Corporate boards, management teams, and business owners turn to us for execution excellence, sector expertise, deep relationships with strategic, financial, and family buyers, and creative public and private capital market solutions.

    More about our consumer products & services 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

    • 145 billion+

      Client assets

    • 90+ Years

      Independent and employee-owned

    • 30+

      Offices worldwide*

    • 700+

      Companies under coverage

    As of March 31, 2026
    *Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Equity.

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