Data research

I am in need of a freelancer who can provide me with a list of email addresses for decision makers. My target audience is C-level executives and the decision makers. The ideal freelancer for this job should have experience in data research and data mining. They should also have expertise in finding email addresses and have access to reliable databases. The freelancer must be highly organized, detail-oriented and able to deliver the project within a set timeline. I need this to be done on a list that I have of 5000 domains linked to these companies. Thank you!