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Impax Asset Management (aifm) Ltd.

● SEC registered since 2014CRD 171783SEC# 801-79931London
Export (members)
Ranks #2,183 of 6,004 private fund managers by regulatory AUM.
Reg. AUM
$2B
Fund GAV
$310.2M
Private funds
3
Employees
165
Accounts
4
Location
London

Impax Asset Management (aifm) Ltd. assets under management

Impax Asset Management (aifm) Ltd. is a registered investment adviser overseen by the SEC based in London. The firm has been registered since 2014. It reports $2 billion in regulatory assets under management and employs 165 people. Impax Asset Management (aifm) Ltd. manages 3 private funds with combined gross assets of $310.2 million, including Global Resource Optimization Fund LP. By regulatory assets, it ranks 2,183 of 6,004 private fund managers.

Impax Asset Management (aifm) Ltd. private funds

3 funds · $310.2M GAV
FundTypeGross assetsMin.
Global Resource Optimization Fund LPOther Private$299.2M$5M
New Energy Investors III LPPrivate Equity$10.6M$1M
Impax New Energy Investors II LPPrivate Equity$359K$1M

Impax Asset Management (aifm) Ltd. owners & executives

6 reported
NameTitleOwnershipSince
Daniel Gunter Von Preyss ControlDirectorUnder 5%2020
Darren Michael Johnson ControlGlobal Chief Operating OfficerUnder 5%2023
Ian Richard Simm ControlDirector, Chief Executive OfficerUnder 5%1998
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Frequently asked questions

How much does Impax Asset Management (aifm) Ltd. manage?

Impax Asset Management (aifm) Ltd. reports $2 billion in regulatory assets under management on its Form ADV.

How many private funds does Impax Asset Management (aifm) Ltd. manage?

Impax Asset Management (aifm) Ltd. manages 3 private funds with combined gross assets of $310.2 million.

How many employees does Impax Asset Management (aifm) Ltd. have?

Impax Asset Management (aifm) Ltd. reports 165 employees.

Where is Impax Asset Management (aifm) Ltd. located?

Impax Asset Management (aifm) Ltd. is based in London and has been SEC-registered since 2014.

Does Impax Asset Management (aifm) Ltd. disclose fund performance?

Impax Asset Management (aifm) Ltd. is not required to publicly disclose fund returns. Form ADV filings include assets, ownership, and service providers, shown above.

Contact & registration

Address7th Floor, 30 Panton Street, London SW1Y 4AJ
Phone+44 (0)20 3912 3000
Fax+44 (0)20 7434 1123
Office hours9.00a.m. - 5.30p.m.
SEC regionHQ
Discloses disciplinary historyNo

Regulatory AUM

$2BNo change
Dec '25 — $2BJan '26 — $2BFeb '26 — $2BMar '26 — $2BApr '26 — $2BMay '26 — $2BJun '26 — $2B
Dec '25Form ADV, monthlyJun '26

How this firm compares

Regulatory AUMTop 22%
Larger than 78% of 16,271 advisers
AUM vs fund managersTop 36%
Larger than 64% of 6,004 private-fund managers
Number of fundsTop 53%
More funds than 47% of fund managers
EmployeesTop 5%
More than 95% of 16,825 advisers

Assets under management

$2Bregulatory AUM
Discretionary $2B

Fund type mix

Private Equity2
Other Private1