Edit and upgrade my working data scrapping script for website

I have a fully working script for the webiste www.gelbeseiten.de . It loads all the pages of a search result which takes some time and in the end downloads all the emails that are found in the entries.
I need you to edit my script so it not only takes all the emails it also should scrap the name of the company that belongs to the email adress.

If possible you can upgrade the script so it works faster.

I send you the working script when you are interested to edit it