Wirewold by designer David Salz is one the best high end audio and video cable companies in the business today. They make everything from analog audiophile cables such as interconnects and speaker cables up to $1000 high performance HDMI cables for extreme home theater and audiophile systems.
All of Wireworld's cables are HDMI 2.0/4K complaint. Wireworld's cables are sold by the best dealers worldwide. They are not really sold over the Internet in most cases.
Some notable Wireworld products include:
Wireworld's Starlight HDMI Cable
Wireworld's Platninum Eclipse
Wireworld Starlight USB Cable