Brian Rosenberg
Head of Brand, Marketing & Communications
About Brian
Brian Rosenberg is head of Brand, Marketing, and Communications for William Blair, where he is responsible for aligning the firm’s brand and business strategy. He leads a team of multidisciplinary experts supporting the business across all internal and external channels, including content, events, web, social, and public relations.
Before joining William Blair, Brian spent more than 20 years in strategy consulting, leading brand and marketing transformation programs for clients across financial services and other industries. He was a partner in the brand strategy practice at Lippincott and, earlier in his career, an associate partner at Prophet. Brian is based in New York.
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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2,100+Employees worldwide
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156 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 June 30, 2026
*Includes strategic alliances with Allier Capital, BDA Partners, and Poalim Equity Ltd.