Yes, of course, it is possible. All you have to consider is whether the casinos belong to the same group of companies. In this case, the welcome bonus may only be possible once. Furthermore, do not forget that each bonus comes with a set of terms and conditions. There is a completely different question of what is the benefit of having many welcome bonuses because you have to clear them with a certain amount of effort. Therefore, it is better not to take on too many obligations if you are still a beginner player.