I am an Irish passport holder and I have just completed my articles to become a chartered accountant and I am enrolled to write CFA level 3. I am looking for a consulting job in the USA and I just wanted to know before I apply which firms are open to work visa sponsorship? I was hoping to apply to BCG specifically but I am open to any firm and location.
I don't think it's technically a visa. It's OPT optional practical training. It's like 2 years for Non-STEM. I think for STEM, this can be extended by 3 years, so you get a few extra shots at transferring to the H1B, if you win the lottery. If you graduate with a Masters, you have a slightly increase chance of winning the lottery, as you can get entered into a priority pool, then a general pool. The only other way to get a visa is an O visa, but you need to be like a Nobel Laureate, or world leading expert/researcher, with published work etc...
L1A/L1B transfers require mandatory 12 months in another office outside USA. Once you receive the visa, you can move instantly unlike with an H1B visa. The H1B visa cap is always oversubscribed within the first few weeks after the initial file date, and applicants usually end up being chosen by lottery. So if there are 65,000 visas, and there are 128,000 applicants, you get chosen by lottery and everyone else's application is sent back. The last time, the H1B visa cap wasn't filled immediately was after the 2008 sub prime crash.