Many schools (Columbia for instance) include Strategy in their Management departments. At Tuck, the department is called "Strategy and Management". Additionally, a reading of the top 10 in this list pretty much does look like the what one would expect the top 10 strategy schools in the US to be. Ergo, this is probably what you're looking for.
But,If so, I beg to differ at the point that where is MIT there, and Booth also ?
I also think that one can also consider the Phd programs of the schools whether they are having a strategy Phd.
What do you think ?