This plane in the photo is US registered. All US registered aircraft have numbers that begin with the letter N. If you have the entire number you can look up the owner and aircraft particulars at

https://registry.faa.gov/aircraftinquiry/Search/NNumberInquiry

Many corporate aircraft are owned by a shell corporation to hide the information about the company operating the aircraft. Often when you look up the N number of a commercial airliner you will find that the plane is owned by a leasing company.