• Leon Kamenev has sold two technology companies for close to $1 billion. But he is trying to combine commercial success with altruism with his latest online venture.

Kamenev, whose fortune was valued at $539 million in the BRW Rich List published this week, is a director of and owns a stake in Matific, an online mathematics education tool with a presence in 46 countries around the work.

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Leon Kamenev isn’t focused on the bottom line with his new venture.Louie Douvis

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