Private Secretariat
Simplify Your Daily Life with Quality Private Secretarial Services
We offer a comprehensive private secretarial service to centralize and streamline the administrative and accounting management for our clients.
Our goal: to provide you with smooth and secure organization of your personal and professional affairs.
Our private secretarial services include :
- insurance management (property and personal),
- cash flow management, payments, and accounting operations,
- administration of family companies,
- mail management,
- rental management tracking,
- assistance in personnel administrative management.

Secure Digital Archiving: Protect Your Sensitive Documents
To complement our private secretarial service, we implement and manage a secure digital archiving. All essential documents and patrimony items are centralized in a protected space, allowing quick access to information at any time.
Aware of security issues, we use highly secure data transfer solutions to ensure the confidentiality and integrity of your information.

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.