info about this corporations

i'm receiving employment offers from these three japanese companies at the same time:

-DENSO
-YAZAKI SOGYO
-AISIN SEIKI

i'd like to know how big are this corporations in japan. i know about denso being the best of the three, but I'd like to know, if possible, what's the ranking of the other two among japanese corporations.

thanks!

1.DENSO
2.YAZAKI SOGYO
3.AISIN SEIKI

all pretty big companies in japan.
AISIN SEIKI is more local than others.

DENSO could be one of the biggest car parts company, but can't live without Toyota motors..

in the end i decided to go for Yazaki Sogyo. They offered me the most interesting career plan and seems to be a very good company. i hope it was the right choice.

thanks again for the info!