Given the size of most engineering programs in France and the way students are admitted into these programs, talking about some 10% top doesn't make sense, espe

Given the size of most engineering programs in France and the way students are admitted into these programs, talking about some 10% top doesn't make sense, especially with the criteria that you mention and that cannot be assessed just 2 years after graduation. Many of these students do start their careers elsewhere, partly due to the way the curriculum is planned (which leads many of them to finish their studies abroad). If you do look for them for your company/startup you'll be able to see them, although you could have to dig a bit deeper due to the small size of these programs (advertising in one specific French university does not have the same impact as in the UK/US and most other countries in the world).