Company Law regulates everything about commercial companies, from their foundation to any activity they can conduct with their corporate bodies (general assembly and administrators), operations with other companies (merger, spin-off, etc.) to company termination.
Company law has the task of defining the legal scope of the entire life of a commercial company (Limited Liability Company or SL; Join-Stock Company or SA; Employment Company or Sociedad laboral; Cooperative Company or Sociedad cooperativa; Simple or Mixed Limited Partnership Company or Sociedad comanditaria o mixta), all the steps needed to establish a company, which kind of operations must be taken and the way to do them to be valid, which kind of contracts can be signed with other companies, the limits to the liability of shareholders and the company termination to put an end to the life of a company.
The main Spanish law that regulate about companies (starting from October 2021) is the Royal Legislative Decree 1/2010 that approved, on the 2 of July, the Consolidated Text about corporate enterprises. Also Regulation of commercial register and the Law about structural modifications of corporate enterprises are very important.