I wonder if you could use nmap or something like masscan(https://github.com/robertdavidgraham/masscan https://github.com/robertdavidgraham/masscan) to figure th

I wonder if you could use nmap or something like masscan(https://github.com/robertdavidgraham/masscan https://github.com/robertdavidgraham/masscan) to figure the IP addresses of people using a certain software(say mongodb on port 27017). And then reverse looking up those IPs to figure out which companies they belong to and then you contact the said companies to sell something.