This list is from www.searchindia.com/search/Society/NRIs/Associations/Gujarati/index1.shtml
There also seems to be Vishwa Gurajari and its chapters
e.g. in Atlanta.
There are also other such lists e.g. www.garamchai.com/desiassc.htm
It has Gujarati as well as other lists.
The same website also has following Marathi
Assc / Punjabi