Since there's a parent company that's still in existence, they most likely made arrangements to send out W-2s for the company that went out of business. Wait until early February and see if you get a W-2. The company's EIN and all the other information that you need for your tax return will be on the W-2. Don't try to make up a W-2 that you did not actually receive. Making it up yourself will just lead to trouble with the IRS and will seriously delay your refund.
