Jump to the top of the page
Simon Fennell

Simon Fennell

Partner, Portfolio Manager

London skyline

About Simon

Simon Fennell, partner, is a portfolio manager for William Blair’s International Growth, International Small Cap Growth, and International Leaders strategies. He joined William Blair in 2011 as a technology, media, and telecommunications research analyst focusing on idea generation and strategy more broadly.

Before joining William Blair, Simon was a managing director in the equities division at Goldman Sachs in London and Boston, responsible for institutional equity research coverage for European and international stocks. Previously, Simon was in the corporate finance group at Lehman Brothers in London and Hong Kong, working in the M&A and debt capital markets groups.

Simon received an M.A. from the University of Edinburgh and an M.B.A. from Cornell University’s Samuel Curtis Johnson Graduate School of Management.

Why We Invest Shapes How We Invest

Culture is more than the ethos that characterizes our organization; it’s the engine that guides our practices. Our people are defined by their shared values and curiosity. Our approach is defined by teamwork; a disciplined, proven methodology; and technology-enhanced collaboration. Our purpose is defined by a focus on our clients and communities. But don’t take our word for it. See what culture means to our colleagues.

Read more

About William Blair

William Blair is a premier global boutique 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 20 offices worldwide.*

  • 1935

    Year William Blair was founded

  • 1,900+

    Employees worldwide

  • 149 billion+

    Client assets

  • 89 Years

    Independent and employee-owned

  • 20+

    Offices worldwide

  • ~650

    Companies under coverage

As of September 30, 2024
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.

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 © 2024 William Blair & Company, L.L.C. | Privacy Terms

Are you sure you want to leave?

Information contained on the internet is not subject to William Blair & Company's control or review, and may not be accurate.

For disclosure information, please visit www.williamblair.com/disclosures