Past Jobs with Contracting Agency

USA Green Card
1

Greetings,

In the process of applying for my green card via my company–does anyone know if they ever reach out to those contracting agencies? As one I worked with no longer exists. Though I gained good knowledge that will hopefully boost my GC chances

2

Some times they reachout to verify the experience of you have submitted experience letters from the past employers with contact.
USCIS understands that companies may close or get acquired so no issues.