Here's some information of Bitfinex based on whois[1]:
Name:- Jean-Louis
Organization:iFinex Inc.
Street:NA
City:Road Town
Postal Code:00000
Country:VG
Phone:+62.9963419
Email:admin@bitfinex.com
What are you planning on doing with this information? If you don't mind saying.
[1]
https://www.whois.com/whois/bitfinex.com