Jensen Matress (or Jensen Matresses). Apparently they make beds and matresses that are really comfortable.
Personally I prefer Hästens or IKEA beds.
Jensen stereos. These guys seem so sell everything HiFi – everything from car stereo to amplifiers and
CD players and what have you.
Bernard Jensen deals in nutrition, iridology and wholistic health, inclding lots of pills, tablets
and other interesting things that probably can make you healthier.
Geir Jensen is perhaps better known as Biosphere a Norwegian band playing electronic music.
Georg Jensen is a Danish designer of many cool things you can put in your home, like cutlery, tea caddy,
decanter bottles and stuff that generally are useful when eating.
Luhr-Jensen is a manufacturer of fishing gear it seems, like spoons and divers and lures.
If you know of more cool and interesting businesses around the world branded Jensen or Jenssen let me know!