This blog post from the Integral Center offers a reasonable comparison as far as I can tell. (Most of my circling experience is with facilitators who were trained in the Circling Europe style; I’ve had one or two Circling Institute circles and one or two Integral Center circles.)
Given that you seem to have a deeper experience in multiple styles of cirling I would be interested in a post exploring the differences.
I learned circling mostly in the Circling Europe style and I would love to know how the thing in the Bay Area differs.
This blog post from the Integral Center offers a reasonable comparison as far as I can tell. (Most of my circling experience is with facilitators who were trained in the Circling Europe style; I’ve had one or two Circling Institute circles and one or two Integral Center circles.)