I've been working with Bob (name changed) as a subcontractor. He's always had some interesting projects with well-known companies and well-known people. However, since I had been working as a subcontractor, many of those companies and people might not know that he had been aided by other people.
To get to the heart of the issue, if I don't include these projects, my work experience would be very light, since he is one of the first people I've worked for on serious projects. I've worked for Bob almost full-time, almost every day, and during working hours. I still consider it as a freelance gig, since we don't have a written contract between us, and if I have other work to do, I just inform him of the work.
Is it professional to include subcontractor work, or should I ask for Bob's permission first?