Impax Asset Management LLC
● SEC registered since 1972CRD 114335SEC# 801-8517Portsmouth, NH
Reg. AUM
$8.94B
Employees
93
Accounts
27
Location
Portsmouth, NH
Impax Asset Management LLC assets under management
Impax Asset Management LLC is a registered investment adviser overseen by the SEC based in Portsmouth, NH. The firm has been registered since 1972. It reports $8.9 billion in regulatory assets under management and employs 93 people.
Impax Asset Management LLC owners & executives
7 reported| Name | Title | Ownership | Since |
|---|---|---|---|
| Darren Michael Johnson Control | Global Chief Operating Officer | Under 5% | 2023 |
| Edward Joseph Farrington Control | President, Elected Manager | Under 5% | 2024 |
| Ian Richard Simm Control | Elected Manager | Under 5% | 2018 |
See all 7 owners & executives — unlock the full record.
Join to unlock · $37/moFrequently asked questions
How much does Impax Asset Management LLC manage?
Impax Asset Management LLC reports $8.9 billion in regulatory assets under management on its Form ADV.
How many employees does Impax Asset Management LLC have?
Impax Asset Management LLC reports 93 employees.
Where is Impax Asset Management LLC located?
Impax Asset Management LLC is based in Portsmouth, NH and has been SEC-registered since 1972.
Does Impax Asset Management LLC disclose fund performance?
Impax Asset Management LLC is not required to publicly disclose fund returns. Form ADV filings include assets, ownership, and service providers, shown above.
Contact & registration
| Address | 30 Penhallow Street, Suite 400, Portsmouth, NH 03801 |
| Phone | 603-431-8022 |
| Fax | 603-431-9175 |
| Office hours | 9:00 a.m. To 5:00p.m. |
| SEC region | Boston Regional Office (BRO) |
| Discloses disciplinary history | No |
Regulatory AUM
$8.94BNo change
Dec '25Form ADV, monthlyJun '26
How this firm compares
Regulatory AUMTop 9%
Larger than 91% of 16,271 advisers
EmployeesTop 7%
More than 93% of 16,825 advisers
Assets under management
$8.94Bregulatory AUM
Discretionary $8.94B