We need to locate validated email addresses for the CEO or owner of approximately 500 companies. This will require significant web research. Many of the company names are "shells" that own the business actual, so the job requires searching by physical address as well as company name. You will need to reconcile "physical" street addresses with company name and email address.
We need to find the (i) true name of the business, (ii) name of the CEO/owner, (iii) email address for CEO/owner and (iv) phone number. We will have many more to follow once this job is completed.