Kirsten Olsen
Managing Director, Private Capital
About Kirsten
Kirsten Olsen is head of private capital for Private Wealth Management at William Blair, where she leads William Blair Merchant Banking, the firm’s dedicated private capital investing capability, and facilitates access to private markets for private wealth clients. She oversees sourcing, underwriting, and portfolio management, delivering a disciplined, institutional approach to private investing. Before joining William Blair in 2024, she held senior roles in investment banking and investment management across both bulge-bracket firms and entrepreneurial platforms. Kirsten is a frequent speaker on private capital and the evolving role of private wealth investing.
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.*
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1935Year William Blair was founded
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1,950+Employees worldwide
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145 billion+Client assets
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90+ YearsIndependent and employee-owned
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30+Offices worldwide*
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700+Companies under coverage
As of March 31, 2026
*Includes strategic alliances with Allier Capital, BDA Partners, and Poalim Equity Ltd.