H1-B transfer after i-140 approved for more than 5 years

[matpsr09]

Hi,

I am currently working in company A with an H-1B extension valid till 2021 based on an approved I-140 (which was approved in 2014) from company A.

I have been offered a job from Company B. The Job specifications in both the jobs company A and company B are in the same field.

Could you please help me with my concerns?

1. I want to start working in company B at the earliest. What is the best and earliest way to get immigration transferred to company B?

2. Can the company B take my I-140 approved petition (from company A) and file for H-1B transfer, without going through labor ?

2. If the company B files for new labor and new H-1B (for company B), how long does it take now a days to process in premium processing?



Please advise.

Regards
EMR.