PORTSMOUTH, NHCRD 114335Latest ADV December 22, 2025
Impax Asset Management LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Portsmouth, NH. Its latest Form ADV filing, dated December 22, 2025, reports $8.9B in regulatory assets under management, 93 employees, 1 office, and 27 accounts.
Assets Under Management
$8.9B
Employees
93
Offices
1 office
Total Clients
27
Primary office
PORTSMOUTH, NH
30 PENHALLOW STREET, SUITE 400, PORTSMOUTH, NH, United States
Portfolio management for pooled investment vehicles
Fee models offered
1 types reported
Asset based fees
Sources checked May 14, 2026
Client Coverage Demographics
Top client segmentInvestment Cos. represent 44.4% of total clients.
Top client categories% of clientsClients
1
Investment Cos.
44.4%
12
2
Other Advisers
29.6%
8
3
Pooled Investment Vehicles
25.9%
7
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$8.9Bas of December 22, 2025
Discretionary100.0%
$8.9B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.
Assets under management Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Latest AUM$8.9B
Total Accounts27
10Y AUM Change+$5.2B (+140.4%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees93
Clients per Employee0:1
10Y Employee Change+39 (+72.2%)
* 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.