The 11-year-old ed tech unicorn led by Under 30 alumni Sam Chaudhary and Liam Don was quietly valued at $1.25 billion by Tencent last fall as part of its virtual push. ClassDojo president Liam Don ...

the 31-year-old ex-education consultant who founded ClassDojo alongside one-time games developer and fellow former Londoner Liam Don. Founders Liam Don (left) and Sam Chaudhary After winning ...