I have arranged an event in the US in New York for Aug 2021 and two of the speakers are from London (British) and two from India.
I understand that one needs a B1 visa for this charity event on world peace and none of the speakers are paid other than flights and accommodation.
My problem is that I am based in London and arranging the event and yet I need a US sponsor (institution) to act as the body applying for the B1 visa. I have tried to convince US universities to be the sponsor but no success.
Could a US citizen be our sponsor?