# APAX PARTNERS US, LLC

APAX PARTNERS US, LLC of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 157110
- Type: SEC-registered investment adviser
- SEC file number: 801-73724
- Location: 601 LEXINGTON AVENUE, 58TH FLOOR, NEW YORK, NY, 10022
- Phone: 212-753-6300
- Latest filing: 2026-06-29
- Regulatory AUM: $768.3M
- Discretionary AUM: $768.3M
- Clients: 133
- Accounts: 5

## Business model

- Compensation: % of AUM, Other
- Clients served: Investment cos

## Officers, owners & control persons (21)

| Name | Role | Location |
| --- | --- | --- |
| [Salim Nathoo](https://search.stillhousedata.com/person/83862) | INVESTMENT COMMITTEE MEMBER | London, X0 |
| [Simon Bernard Cresswell](https://search.stillhousedata.com/person/130620) | GENERAL COUNSEL | St Peter Port, Y7 |
| [Bharat Patel](https://search.stillhousedata.com/person/208502) | GLOBAL HEAD OF FINANCE/CFO | Las Vegas, NV |
| [Sarah Mary Butcher](https://search.stillhousedata.com/person/692488) | CHIEF COMPLIANCE OFFICER | — |
| [Mitchell Loeb Truwit](https://search.stillhousedata.com/person/692489) | CEO | — |
| [Ralf Gruss](https://search.stillhousedata.com/person/692490) | COO | — |
| [Andrew Paul Sillitoe](https://search.stillhousedata.com/person/692491) | INVESTMENT COMMITTEE MEMBER | — |
| [Roy Mackenzie](https://search.stillhousedata.com/person/692492) | PARTNER/INVESTMENT COMMITTEE MEMBER | New York, NY |
| [Jason A Wright](https://search.stillhousedata.com/person/695105) | PARTNER | — |
| [MEGRUE JOHN F](https://search.stillhousedata.com/person/799507) | CEO | — |
| [MARSDEN ROBERT J](https://search.stillhousedata.com/person/813946) | CCO; CFO; CFO/CCO | — |
| [BUTCHER SARAH MARY](https://search.stillhousedata.com/person/833241) | CHIEF COMPLIANCE OFFICER | — |
| [ZANGL ZACHARY](https://search.stillhousedata.com/person/833670) | CCO (INTERIM) | — |
| [CRESSWELL SIMON BERNARD](https://search.stillhousedata.com/person/855059) | GENERAL COUNSEL | — |
| [TRUWIT MITCHELL LOEB](https://search.stillhousedata.com/person/880828) | CEO | — |
| [Patel Bharat](https://search.stillhousedata.com/person/880829) | GLOBAL HEAD OF FINANCE; GLOBAL HEAD OF FINANCE/CFO | — |
| [GRUSS RALF](https://search.stillhousedata.com/person/883748) | COO | — |
| [SILLITOE ANDREW PAUL](https://search.stillhousedata.com/person/883749) | INVESTMENT COMMITTEE MEMBER | — |
| [Mackenzie Roy](https://search.stillhousedata.com/person/883750) | PARTNER/INVESTMENT COMMITTEE MEMBER | — |
| [NATHOO SALIM](https://search.stillhousedata.com/person/883751) | INVESTMENT COMMITTEE MEMBER | — |
| [Michael Antony Lampshire](https://search.stillhousedata.com/person/1624981) | GENERAL COUNSEL | — |


## Private funds (3)

| Fund | Type | Formed | Owners | GAV | Min investment |
| --- | --- | --- | --- | --- | --- |
| APAX US VII, L.P. | Private Equity Fund | Cayman Islands | 60 | $41.2M | — |
| APAX VANTAGE SOFTWARE I L.P. | Private Equity Fund | Guernsey | 18 | $11.8M | $10.0M |
| APAX HELIX US FUND, L.P. | Private Equity Fund | Delaware | 0 | — | $10K |


## Fund service providers (2)

- custodian: APAX HELIX US FUND (TE) L.P.
- custodian: AVS I (FEEDER) L.P.

## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/157110/brochure
- Similar advisers: https://search.stillhousedata.com/firm/157110/similar
- Related entities: https://search.stillhousedata.com/firm/157110/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/157110

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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.