Open work permit..

[sanjeev reddy]

Hi everyone,
Is it possible to change employer if I'm on employer sponsored work permit, if not what is the procedure to change my employer and also please let me know is there is any opportunity to get an open work permit to a person who has not pursued his education in Canada.
if you know any agencies which are helping in getting such permits please inform me.

Thanks in advance...

Regards,
Sanjeev