# J. Leon Group

J. Leon Group is a Single Family Office based in London, United Kingdom.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** London, United Kingdom
- **Region:** Europe
- **Address:** 32 Hampstead High Street, London, NW3 1JQ, United Kingdom
- **Founded:** 1929
- **Assets under management:** 384 (Altss estimate)
- **Website:** jleon.co.uk
- **LinkedIn:** https://uk.linkedin.com/company/j-leon-group

## Regulatory record

- **Reports private funds:** No

## About

J. Leon Group traces its roots to 1929 as the Leon family's investment vehicle. Fifth-generation members including Peter Leon and Simon Leon sit on the board alongside managing directors Paddy Walker and Tania Slowe. The firm invests the family's capital from its London headquarters. The portfolio spans public equity, private equity buyouts, hedge funds, and direct real estate. Geographic reach covers the UK, North America, Europe, and selected markets in Asia and Africa. Investment stages include buyouts, venture capital, and seed rounds. The group operates a philanthropic arm through the J Leon Charitable Trust and the J. Leon Philanthropy Council. Paddy Walker also chairs the Family Office Forum at the Institute of Family Business. Tania Slowe serves as a trustee of The Prince's Trust. The firm maintains no disclosed adjacent vehicles or additional offices beyond its Hampstead headquarters.

## Sectors

- PropTech
- Healthcare Services
- Robotics & Automation
- FinTech
- ClimateTech
- AgriTech & FoodTech
- Mobility & Transportation

## People

- Paddy Walker — Managing Director
- Tania Slowe — Joint Managing Director and Chair of the Philanthropy Council
- Peter Leon — Chairman
- Simon Leon — Director

## Questions

### Who runs investment decisions at J. Leon Group?

Paddy Walker serves as Managing Director. Tania Slowe acts as Joint Managing Director. Peter Leon holds the role of Chairman.

### How does J. Leon Group source proprietary deal flow?

The firm relies on relationships within the Institute of Family Business and direct networks in UK property and private equity. It does not accept unsolicited approaches.

### Is J. Leon Group structured as a single family office or does it operate more like a venture firm?

It functions as a single family office for the Leon family. The structure includes direct real estate holdings and commitments to private equity and hedge funds.

### Does J. Leon Group participate in fund commitments or only direct deals?

The firm makes both fund commitments and direct investments in real estate and private equity. Confirmed holdings include UK commercial property and farmland.

## Related profiles

- [Nebari Holdings](https://altss.com/profile/nebari-holdings)
- [Valiant Wealth Family Office](https://altss.com/profile/valiant-wealth-family-office)

---

Last updated: 2026-08-10T15:54:10.904Z

Canonical page: https://altss.com/profile/j-leon-group-family-office-leon-family-office

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology