English-speaking private investigator across the French Riviera
The Fondrillon Agency is a CNAPS-licensed private investigator (authorisation issued by the French Ministry of the Interior) operating throughout the French Riviera and the Alpes-Maritimes: Nice, Cannes, Antibes, Juan-les-Pins, Cap d’Antibes, Grasse, Mougins, Valbonne, the Sophia Antipolis technology park, Cap-Ferrat, Beaulieu-sur-Mer, Villefranche-sur-Mer, Menton and the Principality of Monaco. Our English-speaking investigators assist international clients — UK, USA, Middle East, Scandinavia — with discreet, legally compliant investigations whose reports are admissible before French courts.
Our investigation services on the Côte d’Azur
- Infidelity & adultery surveillance — discreet evidence gathering admissible before the French family court (Juge aux Affaires Familiales) for divorce proceedings.
- Corporate & economic intelligence — unfair competition, employee disloyalty, IP theft and due diligence, including within the Sophia Antipolis tech ecosystem.
- Asset & solvency investigations — locating assets and assessing solvency before a transaction or to enforce a judgment.
- Background checks & pre-employment screening for sensitive positions.
- Missing persons & debtor tracing across France and abroad.
- Technical sweeps — detection of GPS trackers, hidden cameras and listening devices.
Why choose a CNAPS-licensed detective?
Only a detective holding a valid CNAPS licence can lawfully conduct surveillance in France and produce reports that hold up in court. The Fondrillon Agency operates within the strict limits of French law (Article 226-13 of the Penal Code and GDPR), guaranteeing both the confidentiality of our clients and the admissibility of our findings. With premium experience in the high-end environments of the Riviera (luxury real estate, yachting in Port Vauban, international residents), our team is used to working discreetly where everyone knows everyone.
Free, confidential consultation. Call us on +33 6 03 47 71 17 or request a free quote. Notre agence intervient aussi en français : détective privé à Nice, Cannes, Antibes et Grasse.