Parent Company files a pre-lien, sub contractor purchases materials from "child company" and never pays, who has lien rights?

As a General Contractor, we hired a Electrical Contractor who purchases materials from a vendor. The vendor, a larger company, is owned by a parent company, and then that company is owned by yet another parent company. 4 tiers total, from the top. 4- big parent company 3- smaller parent company 2- local supplier 1- our sub contractor Direct- My Company. I have known of, from being around, the big parent company. I then learned they owned the small parent company. I never heard of, or knew the bigger companies owned any of the smaller ones. The smaller parent company filed the pre lien, the electrical contractor buys materials from the local supplier. Eventually a lien is filed by the big parent company with a DBA, as the smaller parent company. I paid all of my bills to the sub contractor timely and correct, they never paid the local supplier, which in reality was the parent company, but i never knew.