Details of the company can be found here. They are not a Japanese company. NHN Japan is one of their subsidiaries, so Comico and the rest.
JusToon merged with Comico Korea.
Acquired Smack Jeeves.
Pocket Comics for English and French translations (change language at the bottom of the page).
Comico Japan
Comico Japan website 2
Comico South Korea
Comico Thailand (Transferred/Owned by Kidari Studio)
This is a rule only for series under Comico and will change depending on the conditions.
Please indicate the original publisher and platform. The exception is for manhwa published first in Japanese and then in Korean; you can put the platform on both (Comico Japan & Comico Korea). This is a bit confusing, but please understand that this system is new and becoming popular as the webtoon market has become very popular in Japan lately, so please only include the parties involved in the cross-production like this.