Recruiting dilemma

Hello everyone! Hope this is the right place to ask but I have a dilemma. I am in two recruitment process for a contractor position at ESA with two outsourcing companies. The position are different but similar in requirements, still in different departments. I am in the final stage of both of these processes and it requires a meeting with the client, in this case an ESA representative.

My question is, would this be an issue? I am referring to applying for two positions and having two final meetings with them? I don’t want this to be a deal breaker but working at ESA was a dream job of mine and I don’t want to let go of one position until I am not certain that I will get an offer from the other one.

Thank you in advance!