Your private investigator in the North of France


Solvest is specialized in private investigation for companies and individuals in the North of France. Our main activities are providing information and evidence for the purpose of defending the interests of our clients. The investigations performed are concluded by a formal investigation report which is admissible in a legal action.

With agencies in Lille and Dunkirk, Solvest covers the whole territory of the North of France, and especially Lille Métropole, the Côte d’Opale area (Dunkerque, Calais, Boulogne-sur-Mer, Le Touquet) and Flanders (Bailleul, Hazebrouck).

Solvest has been founded by Aymeric Vandevelde, graduated from IESEG School of Management (Lille) in 2011 and the “Institut de Formation des Agents de Recherches” (IFAR, Montpellier) in 2019, and certified in “Management of the risk of fraud and corruption” by the “École Supérieure de la Sûreté des Entreprises” (ESSE, Paris). During eight years, he held positions in financial controlling in construction and in the food industry, both in France and abroad (Africa, United Kingdom, Romania, Spain).

Investigateur Anti-Fraude

This knowledge of the industrial activities makes Solvest a key player in the corporate investigations in the North of France. Solvest and its investigator are also able to investigate abroad, thanks to their network and their skills in french, english, spanish and romanian languages.


Seeking the truth with know-how, rigour and loyalty

Our clients often face complex situations from a legal, social and even emotional point of view. As our mission is to seek the truth in complete objectivity, we are committed to fundamental values. They are the base of our work and guarantee investigations of high added value.


Because details and clues often lead to obviousness and evidence


We always keep you informed about the progress of our investigations


The respect of privacy and personal data make part of our key concerns


Our private investigators provide a fast and clear answer to your issues


Because every investigation is unique, we adapt our services to your needs


We always seek and demonstrate the truth without any value-judgement



Prevent and counter internal and external threats to your business
Unfair competition, theft, employee absenteeism, fraud, industrial property, due diligence, debtors tracing...


Seek and demonstrate the truth, defend your interests
Adultery, educational deficiencies, alimony and allowances, people tracing, protection of your privacy...

Let's talk about your issue and the best investigation strategy to implement