noun
submitter; presenter; proposer
Refers to a person who submits or presents something, such as a document, proposal, or application.
書類の提出者は、受付で名前を記入してください。
The submitter of the documents should write their name at the reception desk.
企画の提出者として、彼が会議で説明した。
As the proposer of the plan, he explained it at the meeting.