Hari,

I think the most important thing is that you have a contact listed that can verify your involvement in the project. I don't think it is critical that they are still at the same company or whether the company exists any longer. I think PMI understands that people move and reporting relationships change a lot. I would just provide the current organization that your contact is working for and it is ok if their organization or number is different for different projects. That is the ethical thing to do.

Good luck,

Mark

For Company A and Company B, the organization details are different but the organization contact (name, phone number, email) will be the same since I had the same boss at both companies. Is it OK to fill out the application in this manner? Is there a better way?

Also, to make matters a little bit complicated, Company A has been acquired after I left, operations consolidated and the department that I used to work in evolved into something else and moved to the parent company's (acquiring company's) headquarters in a different city. Which organization's name, address and phone number should I provide?
Thank you!