NSBE – the National Society of Black Engineers offers STEM training for youth.
BDPA – or the Black Data Processing Association offers STEM training for youth.
CODE2040 connects Black and Latino/a engineering talent to opportunities to ensure their leadership in the innovation economy.
You can look into STEM programs for students in grades 7-12 on wwww.teenlife.com published by a company of the same name in Brookline Ma that is targeting middle and upper income suburban parents by offering expensive school programs.
The MIT k-12 outreach directory is a comprehensive resource provided by Mit University.