Alain Merieux has an estimated net worth of $3.4 billion as of April 2016, according to Forbes. Since 1974, Alain Merieux sits as the president of one of the world's leading laboratory diagnosis, BD Mérieux which took the name of bioMérieux when Alain became the largest shareholder in the company. Alain is the grandson of Marcel Mérieux, a student of the famous Louis Pasteur. Marcel Mérieux developed the first ever Marcel Mérieux tetanus sera in a laboratory which he founded in Lyon.

Currently, the company operates in more than 150 countries worldwide and hires a total of 6,000 employees. BioMérieux is the leading Alain Merieux currently sits as the president of Merieux Alliance and chair of Foundation Mérieux, which is known for its charity works.