I am proposing to relocate from London to San Francisco in June for a
period of 3 months in which time I will hope to get a job and
sponsorship for an
H1B visa. I am a qualified accountant and currently work within the
M&A environment for a FTSE 100 company. I am keen to try and build up
my network prior to arriving and would like to hear from anyone who
has worked with any good recruitment agencies within the financial
sector in San Francisco or any companies who actively recruit overseas
candidates. I also found a web site called www.H1Base who claim to
have lists of US companies who recruit overseas and for a fee are
prepared to make circulate your resume and arrange interviews - I
would like to hear from anyone who has used them and what they
thought.

thanks

I don't have a clue about your Question, but wanted to comment that
San Francisco is one of the most interesting, beautiful, and diverse
cities in the US.  Great Choice!