Collect names and emails from website of event

Hi,

There is a conference happening that has 60 companies exhibiting.

I would like to get a list of:
All of the exhibitors
Contact name for marketing person
Email for marketing person

The only info listed is the company name of the exhibitors, so you will need to do some research to find out the name and marketing email for each company

I would like to get contact details as many of there 60 companies as possible.

Thanks!