This question is not very clear, but I assume that it means “Which companies of International repute hire from Thapar?”
If this is the case, I must tell you that most of the companies are of that stature. Thapar is very old, and have established some relations to big companies that they visit Thapar.
However, if you are looking for the names of few popular companies, then I have written this answer for you.
For international positions, Works applications of Japan comes here.
Samsung may also hire for international positions, for Indian R&D positions, it is quite regular.
Microsoft India is important and comes regularly.
Amazon, Adobe, Maruti, Tata Motors, Walmart Labs, Texas Instruments, SanDisk, DeShaw and Schneider Electric are regular recruiters too.
Many financial firms come here, the most .i