i dont think anyone will know that on top of their head.
i suggest you to do some research. get the numbers of those companies and call them up. and when or if you do get the spring rate... post them up here i would love to take a look at them compare to others like tein and Jic
ditto, but those names don't scream honda performance...... well, at least they are less well known among honda circles..... might be interesting underdogs. BUT, ill stick with my teins