Impax Asset Management, Ltd. is an SEC registered investment adviser. Its latest Form ADV filing, dated December 22, 2025, reports $25.8B in regulatory assets under management, 165 employees, and 686 accounts.
Assets Under Management
$25.8B
Employees
165
Offices
--
Total Clients
686
Primary office
LONDON
7TH FLOOR, 30 PANTON STREET, LONDON, United Kingdom
Portfolio management for individuals and small businesses
Portfolio management for investment companies
Fee models offered
2 types reported
Asset based fees
Performance-based fees
Sources checked May 13, 2026
Client Coverage Demographics
Top client segmentHNWI represent 81.9% of total clients.
Top client categories% of clientsClients
1
HNWI
81.9%
562
2
Individuals
4.8%
33
3
Pooled Investment Vehicles
3.9%
27
4
Corporations
2.5%
17
5
3 OTHER & 10 NON-DISCRETIONARY ACCOUNT
1.9%
13
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$25.8Bas of December 22, 2025
Discretionary94.6%
$24.4B
95% of total RAUM94.6%
Non-discretionary5.4%
$1.4B
5% of total RAUM5.4%
Regulatory assets under management are split between discretionary and non-discretionary assets.
Assets under management Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Latest AUM$25.8B
Total Accounts686
10Y AUM Change+$21.0B (+428.9%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees165
Clients per Employee4:1
10Y Employee Change+100 (+153.8%)
* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.