- Impax Asset Management Group plc
- Impax Asset Management LLC
In 2018, Impax Asset Management Group plc
acquired Pax World Management LLC
which was subsequently renamed Impax
Asset Management LLC.
*Corporate finance advisory firm Impax Capital Ltd was established in 1994. Ian Simm was working at Impax Capital prior to founding Impax Asset Management Ltd in 1998. Impax Capital Ltd ceased operating in September 2007.