Nothing says Pym is not involved
In fact , I bet he is
- In the movie, Stark "jumpstarts a dormant program" (as per the official description from Marvel)
- In Antman, we have an older Hank Pym, and in the SDCC footage, he says that he doesnt care for superheroes
So he could have created that program that became dormant while working for SHIELD
Maybe he even worked on it with Howard Stark and Arnim Zola