• C++

Anders Hejlsberg

• Turbo Pascal
• Delphi
• C# (chief architect)

Lars og Jens Rasmussen

• Google Maps
• Google Wave

Rasmus Lerdorf

• PHP

Jakob Nielsen

• Usability expert

• BNF notation (with John Backus)
• Algol 60 (contributor)
• Turing award winner

Janus Friis

• Skype (co-founder)
• KaZaA (co-founder)

Henrik Wann Jensen

• The photon mapping technique

Per Brinch Hansen

• Concurrent programming pioneer
• Coined the Danish word “Datamat”

David Heinemeier Hansson

• Ruby on Rails web development framework