On the UK register
Impax Asset Management
IMPAX ASSET MANAGEMENT LIMITED is a private limited company incorporated 1998-06-18, registered at 7th Floor 30 Panton Street, London, SW1Y 4AJ. 4 directors are currently in post, of 27 ever recorded.
The UK record
Filed with Companies House and public. This is the half of the picture Form ADV does not carry: the legal entity, who sits on it, and who controls it.
- Company number
- 03583839
- Legal form
- Private limited company
- Incorporated
- 1998-06-18
- Directors
- 4
- Accounts to
- 2025-09-30 (full)
Significant control
- Impax Asset Management Group Plccompany75 to 100% of the shares, 75 to 100% of the votes, can appoint and remove members
Companies House names the individuals with significant control and this site does not repeat them. What matters here is who controls the manager and by how much, and that is filed above in full. A controller that is itself a company keeps its name, because that is a link in an ownership chain rather than a person. The register is one click away if you need the names.
What the SEC filings add
2 SEC registered advisers are matched to this firm. The regulatory assets below belong to those entities rather than to the whole business, and for a British house that is frequently a subsidiary. Treat it as a filed figure about a registration, not as the size of the firm.
- Regulatory AUM
- $27.8bn
- Private funds
- 6
- Private equity share
- 43%
- Latest ADV
- 2026-07-30
- Impax Asset Management, Ltd.801-67631United Kingdom$25.8bn
- Impax Asset Management (aifm) Ltd.801-79931United Kingdom$2.00bn
What kind of funds
From Schedule D, weighted by gross asset value, as filed to 2024-12-31. 50% of its funds are constituted in the United Kingdom or the Crown Dependencies, which is the filed signal that placed it on this page rather than the American one.
- Other Private Fund57%$549m
- Private Equity Fund43%$413m
Where this comes from
UK record: Companies House, company 03583839, read through its public API. Assets and funds: Form ADV. The two were matched by name, so the company number is shown above for checking rather than asserted: if it is the wrong entity, the link will say so plainly.