founder (of a company)
会社の創業者が会長職を退任した。
The company's founder stepped down as chairman.
創業者は小さな店から始め、世界的企業に育て上げた。
The founder started with a small shop and built it into a global company.
新店舗のオープニングに創業者が挨拶した。
The founder gave a speech at the new store's grand opening.