Scrape website for public email addresses and company names

I need to scrape all of the email addresses, and corresponding company names and manager names as well as the corresponding category taken from: [login to view URL] These emails and names are all public. Longer lists require you to click on a letter to see that portion of the list. One problem might be that sometimes the formatting for each company page is slightly different. many company's have numerous emails. The data needs to be exported to excel/csv. Please message me with any questions or concerns.