I will tell another personal experience. I am based out of India and have been invited to speak at a conference in San Francisco. I applied for a business visa and was denied that visa because apparently I am young (23) and they have not heard about my startup (it is of course not an IT service giant like Infosys, TCS or Wipro) or conference (it's about A/B testing). Mind you: my startup is doing quite well financially and we pay regular taxes (had all relevant documents to prove it). Getting a simple business visa for US is so hard that from multiple sources I heard that founders of a lot of VC funded startups (with more than million $ in bank) in India many times don't get a US visa if they need to setup a sales team there or be there for some business purpose. Is doing business in US for foreign startups really this hard or I am an outlier?
It's, of course, frustrating and I don't know what to do about it.