CERN particle physics course for high-school students (self paced, English, digital certificate on completion)
Binding blocks (English, nuclear physics masterclass, grades 10-12)
Perimeter online Go Physics! workshops (English, various topics at various points of the year, usually grades 10-12)
York University Science Enrichment Programs (English, various lengths, grades 6-12)
ID Tech (English, grades 6-12)
Coding with Kids (English, grades 6-12)
Philosophy Plus - this was great and has not run since 2023, but I have left it here in the hopes it runs again.
European Space Camp (English, 17-20 year olds)
The Walton International program is a 10-day STEM educational experience at Trinity College Dublin (English, ages 15-18)
Saturday morning physics events TU Darmstadt - program (German, any grade level)
Karlsruhe Institute of Technology, Carl Benz Summer School (English, 1 week, grades 10-12)
London International Youth Science Forum CIC (English, 2 week summer camp, grades 10-12)
TU BERLIN SUMMER SCHOOL (English)
Worcester Polytechnic Institute (English, 1 week, grades 9-11)
Worcester Ploytechnic Institute Frontiers program (English, 2 weeks, grades 10-12)
MIT Women's Technology Program (English, 4 weeks for students between 11th and 12th grade)