I have a dataset of about 5,000 U.S. small energy companies (company name and location). I need an intelligent, fluent english speaker to Google each company and identify if a) it still exists; and b) if it is selling anything. If it does not exist, you need to try to find out when it went bankrupt or "died." This primarily involves trying to find a company website, and then examining the website to find out if the firm has any products for sale and is actively in business. You may also need to try to understand situations where the company has changed names, and document that change.