noun
seller; vendor; party receiving an order
Refers to the entity that receives and accepts an order, typically in a business or procurement context. The focus is on the role of accepting the order rather than just selling.
受注者は注文書を確認してから製造を開始します。
The party receiving the order will start manufacturing after confirming the purchase order.
このプロジェクトの受注者は大手建設会社です。
The vendor for this project is a major construction company.
Compound of 受注 (receiving an order) + 者 (person/party). The term is straightforward and modern, used in business and legal contexts.