When our son was researching prep schools, it was tough to find info about engineering and robotics programs that schools might offer.
This might be a good place for prospective and current students to post information that might be helpful to others with similar interests.
From our research (which is a full year old now - and things can change fast!) here are some schools which had either active clubs or actual coursework in robotics or engineering (listed in no particular order):
St. Marks (FIRST Robotics, electric car competition)
Loomis Chaffee (FIRST Robotics)
Ridley College (VEX Robotics)
Deerfield Academy (electric car competition)
Milton Academy (robotics club)
Choate (robotics club)
Our son is a 9th grader at Thacher, which is one of a small handful of high schools in the country which have access to the highly-sophisticated, artificial intelligence robots called NAO. Here's a link to a Thacher news article about NAO: