Are all foreign companies in Thailand required to be under the Board of Investment regulations, especially regarding employment for fresh graduates?

Are all foreign companies in Thailand under Board Of Investment? Apperantly this board has a rule that foreigners without 2 years work experience cannot join a company, but in this case what if we are freshers? Freshmen arent allowed to join international companies at all if they don't have prior experience?

Long story short, my company (international company) I did an internship with tried to offer me a job but since Im a fresh grad the board of investment wont let me join. So I was wondering are all international companies in Thailand operating under this Board? How does it work?