Ms. O’Brien is a Managing Director on the Institutional Client Solutions team for Blackstone Infrastructure Partners.

Prior to joining Blackstone in 2024, Ms. O’Brien was a Principal on the Investor Relations team at Global Infrastructure Partners (GIP) where she led product strategy for the firm. Prior to GIP, Ms. O'Brien was a Director at BlackRock and member of the BlackRock Alternatives Specialists team, where she was responsible for distribution of the firm's global private credit platform to institutional investors in the US and Canada. Ms. O'Brien began her career in finance at Paulson & Co. where she was a Vice President on the US Institutional Investor Relations team.

Ms. O'Brien received a BA in History from Boston College and an MBA from the Leonard N. Stern School of Business at New York University.