Yes, Little Nemo could be partially considered a goth band because on some of their albums they played Coldwave, Gothic Rock, and Darkwave, which are among the core subgenres of goth music. Albums like Sounds In The Attic, Turquoise Fields, and Private Life are examples of their goth sound.
Some of the other goth artists that are similar to them are Asylum Party and And Also The Trees.
Little Nemo is located in France, Paris, active in 1983 — 1992, 2008 — present. You can find more information about Little Nemo on their GothDB band page.