Serf Systems was a company founded by Joseph Serf, after he graduated from Harvard University in 1993.
History
The company's PR officer was John Harrison. After Serf's death in a skiing accident in Val d'Isère in 2007, Harrison assumed control of the company and used an advanced hologram of Serf maintained by Skullion slaves to advertise the SerfBoard, an apparently revolutionary computer that was actually, in Harrison's own words, "rubbish".
It was the hologram Serf's hypnotic ability that would convince consumers to buy the SerfBoards, which would make Harrison rich. This plot was foiled by Sarah Jane Smith, who freed the Skullions. Luke and his sister Sky then gained control of the hologram Serf, and made him hypnotise people into not caring about the SerfBoard. (TV: The Man Who Never Was)