Altonimbus Entertainment is an Oregon non-profit corporation organized to host Kumoricon and other events which promote Japanese animation and related cultural and entertainment media. Altonimbus Entertainment is made up of volunteers at all levels, including the Board of Directors. The organization is governed by its bylaws.

Membership – How and why to become a member of Altonimbus Entertainment.

Altonimbus Entertainment Bylaws – Last amended August 22, 2009, effective September 10, 2009.