-Aki Vehtari
-Alan Saul
-Andreas Damianou
-Andrei Paleyes
-Fela Winkelmolen
-Huibin Shen
-James Hensman
-Javier Gonzalez
-Jordan Massiah
-Josh Fass
-Neil Lawrence
-Rasmus Berg Palm
-Rodolphe Jenatton
-Simon Kamronn
-Zhenwen Dai
-see also GPy and GPyOpt contributors in GitHub