# IMPAX ASSET MANAGEMENT, LTD.

IMPAX ASSET MANAGEMENT, LTD. of LONDON is an SEC-registered investment adviser.

## Registration

- CRD: 143247
- Type: SEC-registered investment adviser
- SEC file number: 801-67631
- Location: 7TH FLOOR, 30 PANTON STREET, LONDON, SW1Y 4AJ
- Phone: 011 44 20 3912 3000
- Latest filing: 2025-12-22
- Regulatory AUM: $25.8B
- Discretionary AUM: $24.4B
- Non-discretionary AUM: $1.4B
- Clients: 165
- Accounts: 686

## Business model

- Compensation: % of AUM, Performance
- Clients served: High net worth, Pooled vehicles, Investment cos

## Officers, owners & control persons (20)

| Name | Role | Location |
| --- | --- | --- |
| Ian Richard Simm | DIRECTOR, CHIEF EXECUTIVE OFFICER | London, X0 |
| John Aquinas Boese | CHIEF COMPLIANCE OFFICER | — |
| Karen Cockburn | DIRECTOR,  CHIEF FINANCIAL OFFICER | — |
| Darren Michael Johnson | GLOBAL CHIEF OPERATING OFFICER | — |
| FALCONER KEITH | DIRECTOR | — |
| SIMM IAN | DIRECTOR | — |
| ROSSBACH PETER VAN EGMOND | DIRECTOR | — |
| JENKYN-JONES BRUCE | DIRECTOR | — |
| BROWN JACQUELINE | CHIEF COMPLIANCE OFFICER; COMPLIANCE OFFICER | — |
| KEEFE JOSEPH FRANCIS | DIRECTOR | — |
| BOESE JOHN AQUINAS | CHIEF COMPLIANCE OFFICER | — |
| TAUNT NIGEL DAVID WYNNE | DIRECTOR | — |
| KNIGHT MICHAEL BURT | CHIEF COMPLIANCE OFFICER | — |
| RIDGE CHARLES DAVID | CHIEF COMPLIANCE OFFICER; DIRECTOR; DIRECTOR AND CHIEF COMPLIANCE OFFICER (+2 more) | — |
| NORMAN ANNIKA C | CHIEF COMPLIANCE OFFICER | — |
| SIMM IAN RICHARD | DIRECTOR, CHIEF EXECUTIVE OFFICER | — |
| von Preyss Daniel Gunter | DIRECTOR | — |
| Bremner Catherine Mary | DIRECTOR, CHIEF STRATEGY AND OPERATIONS OFFICER; DIRECTOR, CHIEF STRATEGY OFFICER | — |
| Cockburn Karen | DIRECTOR,  CHIEF FINANCIAL OFFICER | — |
| ALEXANDER MARY PATRICIA | DIRECTOR | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/143247/brochure
- Similar advisers: https://search.stillhousedata.com/firm/143247/similar
- Related entities: https://search.stillhousedata.com/firm/143247/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/143247

---

Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.