Ian Simm

Ian Simm

Net worth: 13 M $ as of 31/05/2026

60 year
Finance
Consumer Services
Government

Profile

Ian Richard Simm is the founder of Impax Asset Management Ltd. (Private Equity), founded in 1996, serving as CEO; Impax Asset Management Ltd., founded in 1998, serving as Chief Executive Officer; Impax Asset Management Group Plc (Investment Management), founded in 1998, serving as Chief Executive Officer; Impax Asset Management Group Plc, founded in 1998, serving as Chief Executive Officer & Executive Director; and Impax Asset Management (AIFM) Ltd., founded in 2013, serving as Chief Executive Officer.
Current jobs include Co-Managing Director at Ambulantis BSW GmbH; Director at The Institutional Investors Group.
On Climate Change Ltd. since 2019 ; Director at Impax Global Opportunities Fund LP; Director at CCPF No.
4 (GP) Ltd. since 2014; and Member of the Net Zero Council.
Former jobs include Member at Natural Environment Research Council from 2013 to 2018 and Engagement Manager at McKinsey & Co., Inc. (United Kingdom).

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
30/09/2025 95,72,033 ( 7.53% ) 13 M $ 31/05/2026

Ian Simm active positions

CompaniesPositionStart
IMPAX ASSET MANAGEMENT GROUP PLC Founder 01/01/1998
Chief Executive Officer 01/06/1998
Chief Executive Officer 18/12/2013
Chief Executive Officer 01/01/1998
Director/Board Member 09/07/2014
Director/Board Member 01/11/2019
Chief Executive Officer 01/10/1996
Director/Board Member -
Chief Executive Officer -

Former positions of Ian Simm

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See the detail of Ian Simm's experience

Training of Ian Simm

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

56

1st degree connections

13

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies13

Finance

Consumer Services

Finance

Consumer Services

Finance

Finance

Government

Finance

Finance

Finance

Health Services

Finance

Finance