Are you looking for TEI marking up non-European languages, TEI being marking up non-ASCII languages, TEI being used by non-European speaking groups or in non-European groups? These are very different things with different challenges.
NZETC
http://nzetc.victoria.ac.nz/ is an English-speaking, bi-cultural group with content in en (majority), mi (significant volume), rap, rar, haw, etc. We also have done work on bi-lingual works (facing page translations) and their encoding in TEI.
I suggest you start a collectively-editable spreadsheet with suitable columns so we can add projects.
cheers
stuart