Query regarding my Sponsor's employer

[VisitTheUSA]

Hi,

My sister is sponsoring my B2 visa. Her contracting company and client are located in different cities. What should be my answer to the potential question "Where does she work?"
Should it be somewhat like:
"She works for the <contracting company> at...

[baghloli]

Hello everyone,
My parents wish to visit UK on return from USA. I currently live in USA and my parents already have US visa and visited in past. However, I am not clear whether I can provide the sponsorship letter to them to fulfill this visa requirement.
Can I provide this letter (along...