Matt Kean has joined Wollemi Capital, having spent four years as minister for energy and environment in New South Wales.
Leahy will focus on creating value through sustainability projects within L Catterton's $35 billion portfolio.
Two firms have added senior capital raising executives to their teams.
The firm has hired Anish Patel from Kerogen Capital, as first reported by Bloomberg.
Andrew Dreaneen has been recruited to lead the growth of a 'global platform of natural capital strategies', according to a statement.
The pioneering impact investing firm has recruited a veteran investor from Just Climate to co-lead the strategy.
The sustainable real assets specialist opened an office in London, its first outside the US, in October last year.
Rich Lesser is the former CEO of Boston Consulting Group and Jeff Johnson was most recently a managing director at Temasek.
The new hire replaces Lora Brill, who left Orchard Street at the start of the year to join sustainability consultancy Ramboll.
Cathy Zoi's previously served in the Obama administration.