Castoldi’s Jujitsu is a longtime member of Jujitsu America as well as Small Circle Jujitsu.
Professor Castoldi’s students have gone on to open their own schools of self defense. Below are some links to those schools.
| Jiava Ryu Jujitsu | New England Small Circle Jujitsu Academy | Inner Circle Jujitsu |
| North American Jujitsu Academy | Check Mate Self Defense | Relionce Self Defense |
Other Links
| Jujutsu America Newsletter |