My Labor just certified and i am in the process of filing I-140. I may face similar experience lik you guys. As some of you posted already, my two previous companies acquired by different company and i now do not know any one in the acquired companies. I have no contacts with my co-workers. But, i do have old references dated back December 2004 which we submitted for Labor certificate. Can anyone tell me if these references would be good to prove that i have job experiences from previous companies?