Two sets of verifications should be undertaken: to check on existing identical or similar existing company names; and to examine existing identical or similar trade-marks.
Which company type should be chosen? In French law, there are several types of company (SA, SARL, SCA, SAS etc.) each with their own legal framework and rules. There is no one type of company which outclasses all the rest. The choice of the type of company should be adapted to the particular requirements in each case.
What happens if the company isn’t registered? If a company is not registered, it will not acquire legal personality and exist as a distinct legal person from its shareholders. Nevertheless, absent registration a company can exist de facto and create unlimited liability on the part of its members.