Read More France: Is the honeymoon already over for new PM?
The scheme comes amid concerns about the level of some MPs' knowledge of the private sector, given that the vast majority of French parliamentarians started their career as public servants, according to a report by academic think tank En Temps Reel.
The report, published in December 2013, also found that around 90 percent of French MPs hold several political offices and therefore do not have a job outside politics – although France's President Francois Hollande has pledged to abolish this system.
Denis Terrien, president of Entreprise et Progrès, said the internship scheme was especially important given the current economic climate.
"In a crisis context, in which growth and employment are absolute imperatives, it is crucial that MPs and corporate leaders know each other better, to work together," he said in a statement.
So far, fifteen MPs across all political parties have expressed an interest in undergoing an internship. They could end up working at some of the country's biggest companies, including L'Oreal, Suez Environment, Vinci Construction – and even foreign corporations like Pepsico France, EY, Sanofi and Total.
Read MoreVive la difference! How France and UK tackle M&A
Follow us on Twitter: