I am an expert in researching techniques and a lot of experience in Data Mining and Web Research. I am also an expert in Lead Generation and finding emails for leads of companies like CEO, Founders, Manager, VP, Directors, etc.
I have done many projects on finding executives of companies and their contact information for sales prospects. I'm familiar with some tools that will be a good fit for your project.
These tools are following
=> LinkedIn Sale navigator for finding executives of the company
=> Rapportive for email
=> Zoominfo for about company information i.e size, profile, Type
=> yellow Pages
=> Manta.com
=> Trip Advisor B2B & B2C Sales & Marketing