noun
Refers to a person who plans or organizes events, meetings, or projects. Often used in business or event contexts.
彼はそのイベントの企画者です。
He is the planner of that event.
企画者として、新しいプロジェクトを立ち上げた。
As a planner, I launched a new project.
主催者 emphasizes the role of hosting or sponsoring an event, whereas 企画者 focuses on the planning aspect.
Compound of 企画 (kikaku, 'planning') + 者 (sha, 'person'). The exact historical derivation is uncertain, but the word follows a common pattern for agent nouns.