- John Katzman (Princeton Review, founder)
- John Katzman (Noodle Partners, CEO)
- John Katzman (Edsurge, investor)
- John Katzman (2U, chairman, board of directors)
- John Katzman (Thinkster Math, investor)
- John Katzman (Springboard, investor)
- John Katzman (Tinkergarten, investor)
- John Katzman (StudySoup, investor)
- John Katzman (Rockit Online, investor)
- John Katzman (panOpen, investor)
- John Katzman (Woodrow Wilson Foundation, board of directors)
- John Katzman (National Alliance for Public Charter Schools, board of directors)
- John Katzman (Renaissance Learning, board of directors)
- John Katzman (Quad Learning, board of directors)