What Drives Us

The Commitment of a Pioneer

In 2001, long before the family office became a “trendy” concept, we created MJ&Cie on a disruptive model based on comprehensive and independent support, fully aligning our interests with entrepreneurial clients and high-net-worth individuals. We have never made the slightest concession to this founding rule, which has allowed us to develop a strong relationship of trust with our clients, ensuring unmatched loyalty over the long term.

This commitment is based on fundamental principles:

  • Capital and operational independence: we depend solely on our clients.
  • Clear definition of our intervention framework (engagement letter).
  • Exclusive remuneration through fees.
  • Respect for established relations with your historical advisors.
  • Neutrality: we are not judge and jury, we supervise and control; we do not replace experts or manage our clients’ assets.
  • Systematic selection of service providers through tenders.
  • Annual strategic orientation review to assess actions undertaken and those to be implemented.
  • Monthly assessments measuring the progress of your strategy.

The Spirit of a Team

Our ambition is to be your strategic thinking partner for building a sustainable strategy. Engaging for the long term requires adapting to a changing world and exploring new avenues. It also means daily reflection on our ways practices, beliefs, and solutions.

None of this is possible without the combination of talent and skills from all our team members. We provide you with a dedicated team consisting of a family officer and experts in each of our areas of expertise: investment, wealth structuring, governance, corporate advisory, and private secretary services.
While technical expertise is one of our strengths, human connection is critical. Listening and empathy, the foundations of the relationship, offer a personalized collaboration tailored to each situation and each problem.

engagements valeurs

Values at the Core of Our Identity

Loyalty

We cultivate a relationship of trust with our clients, based on respect, listening, and fidelity to their objectives.

Your interest is our course and your story, our guide.

Integrity

Nothing matters more than the trust you place in us. We are committed to accompanying you with full transparency, aligning our actions with your story and values for a constructive and lasting partnership.

By adhering to the AFFO and ENFO charters, and benefiting from forward-looking work conducted by these associations, we ensure we adhere to the best industry practices.

Independence

Independence is at the heart of our corporate culture. It constantly invites us to look at things differently, avoiding the trap of preconceived truths to act in your long-term interest and, through diligent work and research, always innovate. Therefore, we do not apply pre-formatted solutions and adapt to your ecosystem.

Responsibility

We strive to act in accordance with our convictions by adopting responsible and sustainable practices.
Loyal to our long-term commitment and the United Nations Global Compact values, we have been supporting child welfare and integration associations for many years.

Our responsible commitment also applies to our advisory services: we implement a stringent process in selecting investments and managers, systematically considering sustainability and impact criteria.

Frequently Asked Questions

A family office is an independent structure that supports wealthy families in the comprehensive management of their wealth. A true long-term strategic partner, it acts as a coordinator, ongoing auditor, and guardian of overall asset coherence — going beyond purely financial aspects.

Its areas of expertise include:

  • financial management,
  • legal and tax structuring,
  • family governance,
  • wealth transmission,
  • and philanthropic projects.

There are two main types:

  • the single-family office, dedicated to a single family,
  • the multi-family office, which pools resources to support several families.

MJ&Cie, the first independent multi-family office founded in France in 2001, supports a deliberately limited number of families with a selective, tailor-made, and human approach.


Choosing MJ&Cie means choosing:

  • a trusted, independent partner,
  • a 360° vision — human and wealth-oriented,
  • sustainable optimization that generates savings,
  • better risk management,
  • and more time and peace of mind to focus on what truly matters to you.

Our contracts are open-ended, with a three-month notice period. The relationship is designed to last, yet remains free and flexible.