
With an estimated net worth of £221.85 million ($300 million), Shark Tank star Robert Herjavec is among the top entrepreneurs and cybersecurity experts in the US.
Herjavec built his fortune by founding top cybersecurity companies and selling them to leading technology corporations and private equity firms. His first breakthrough came in 2000 when he sold Brak Systems, an internet security software integrator, to AT&T Canada for over £22.18 million ($30 million).