Internet linkedin / research - spreadsheet help

Hi

Need some help researching the managing directors at UK digital agencies. I have started the spreadsheet and have all the company names - nearly all the website addresses some contacts and address info. I need their email addresses - phone numbers - and for the larger agencies a couple of other contacts - the technical director and the creative director. There is about 200 companies and I guess you could get 400 names in total.

This is likely to become a regular contract

Thanks Henry