We are developing a tool for Leads Forensic. As you know - we can get the whois info regarding B2B who has visited our site. Based on that we want to catch the ip address from where the visitor is coming, link the site name to a company (At our database or in any other suitable way) and show the company details. In the extension - based on a subscription program users signed up to we want to fetch financial info by API.
If you have experience from this area - please get in touch.