I'm sure there are ways around this. I'm not an American, and I was just trying to figure out whether they have data on me, because I used to work for American companies in the past.
If you worked for American companies from abroad, you probably filed W-8BEN and were considered a non-US person for all tax purposes, had no TIN and nothing was reported on you to Equifax or other credit reporting companies (e.g. Transunion or Experian).
If you filed W-9 as US person, you gave them a TIN, which in the majority of employment related cases is your SSN, and then they most likely reported your employment to Equifax.
