A reverse whois tool based on Whoxy API based on @jhaddix's talk on Bug Hunter's Methodology v4.02.
$ whoxyrm -company-name "Oath Inc."
or
$ whoxyrm -name "Oath Inc."
or
$ whoxyrm -email "test@example.com"
or
$ whoxyrm -keyword "yahoo.com"
$ go get -u github.com/milindpurswani/whoxyrm
Also, Make sure you export your whoxy api key as follows: without this, it won't work.
$ export WHOXY_API_KEY="..."
you can grab one from https://www.whoxy.com