# Strat & Fi

Strat & Fi is a Multi Family Office based in Paris, France.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Paris, France
- **Region:** Europe
- **Address:** 7 rue Penthièvre, 75008 Paris, France
- **Founded:** 2000
- **Assets under management:** 750 (Altss estimate)
- **Website:** stratefi.com
- **LinkedIn:** https://fr.linkedin.com/company/strat-&-fi

## About

Strat & Fi was founded in 2000 in Paris by Managing Partner Guillaume Lange. The firm grew out of entrepreneurial wealth generated through real estate investment initiatives and financial advisory services. It now serves more than 200 client families, combining wealth management with in-house legal, tax, and private market capabilities. The firm deploys capital across a deliberate trio of asset classes: curated private equity fund commitments, direct real estate club deals, and bespoke multi-asset financial mandates. Its real estate activity is concentrated on prime Paris and the Côte d'Azur, funneled through in-house partner Globalstone, which holds a reported 75% market share in Parisian tax-advantaged property transactions. On the private equity side, Strat & Fi selects first-quartile funds with a minimum three-year track record, targeting net returns above 12%. Its financial management platform spans Luxembourg and French assurance-vie wrappers — the firm reports over €80M allocated to customized mandates within these structures. Strat & Fi operates from a single office at 7 rue Penthièvre in the 8th arrondissement. The firm's inner circle is led by Managing Partner Guillaume Lange alongside Associate Director Charlotte Donahue and Managing Directors Arnaud Bartholin and Philippe Alcaras. Alcaras maintains a professional network that extends to growth-equity partners such as Starquest. The firm also directly owns and manages a portfolio of Parisian luxury residential and hotel assets, including La Sève on Avenue Lowendal and several unnamed high-end residences across the 7th, 8th, and 13th arrondissements. The structural differentiator is vertical integration in real estate. Most multi-family offices stop at fund selection; Strat & Fi acts as merchant developer, property operator, and tax-structuring partner through Globalstone. This allows the firm to originate its own deal flow — over €150M in short-hold merchant properties and €50M in long-duration real estate company assets — and offer clients direct exposure to Parisian hard assets rather than aggregated fund vehicles.

## Sectors

- Real Estate
- Private Equity

## People

- Guillaume Lange — Managing Partner
- Charlotte Donahue — Associate Director / Managing Partner
- Arnaud Bartholin — Managing Director
- Philippe Alcaras — Managing Director

## Questions

### Who runs investment decisions at Strat & Fi?

Guillaume Lange serves as Managing Partner. Charlotte Donahue, Arnaud Bartholin and Philippe Alcaras hold Managing Director or Associate Director roles. Investment selections follow the firm's integrated advisory process.

### How does Strat & Fi source proprietary deal flow?

The firm sources real estate opportunities through its Globalstone partnership. Private equity access occurs via direct relationships with fund managers. No external aggregator data is referenced.

### Does Strat & Fi participate in fund commitments or only direct deals?

The firm commits to private equity funds and structures direct co-investments and SPVs. Real estate activity includes both club deals and proprietary projects.

### What investment stages does Strat & Fi typically target?

Private equity targets established funds with three-year track records. Real estate focuses on existing urban assets in core French markets rather than development.

### Does Strat & Fi maintain philanthropic structures?

No philanthropic vehicles or foundations are disclosed in available sources.

## Related profiles

- [Soave Private Investors](https://altss.com/profile/soave-private-investors)
- [Triton Investment Company](https://altss.com/profile/triton-investment-company)

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Last updated: 2026-07-06T00:38:39.922Z

Canonical page: https://altss.com/profile/strat-fi

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