Get Email Addresses From A Directory

Hi

I have access to a directory which lists out all the participants of a conference I am attending.

I need you to get all there email addresses and company name.

There is a total of 8,000 contacts in 8 categories but a lot would be just duplicates.

I would need the list in the categories with all the duplicates taken out.

I have full login details etc for the site/directory.

Thanks