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HarbourVest Partners raises $865m for third infrastructure opportunities fund
Fundraising - SEPTEMBER 18, 2025

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HarbourVest Partners raises $865m for third infrastructure opportunities fund

by Kali Persall

HarbourVest Partners has completed the final close of its third Infrastructure Opportunities Fund (IOF III), securing $865 million in commitments from limited partners across the globe.

IOF III was backed by both existing and new limited partners — primarily institutional clients — including 18 new investors across diverse channels and geographies.

IOF III focuses on secondary investment opportunities and is further strengthened by direct co-investments in infrastructure assets across North America and Western Europe. The successful fundraise nearly doubled the size of the fund’s predecessor, positioning IOF III to capitalize on a compelling set of secondary and direct co-investment infrastructure opportunities.

IOF III started to deploy capital in December 2023 and has built a diversified portfolio spanning traditional and emerging infrastructure sectors. Investments have been made alongside high-quality general partners, offering exposure to hard-to-acce

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