Yanmar didirikan pada bulan Maret 1912 di Osaka, Jepang,<ref>{{cite book|title=New Technology Japan|url=https://books.google.com/books?id=D9RVAAAAMAAJ|year=2001|publisher=Japan External Trade Organization, Machinery and Technology Department}}</ref> byoleh Magokichi Yamaoka.<ref>{{cite book|title=World Engine Digest|url=https://books.google.com/books?id=ZNpSAAAAMAAJ|year=1980|publisher=John Martin Publications|isbn = 9780906237151}}</ref><ref name="EppingerBrowning2012">{{cite book|author1=Steven D. Eppinger|author2=Tyson R. Browning|title=Design Structure Matrix Methods and Applications|url=https://books.google.com/books?id=bdjxCwAAQBAJ&pg=PA196|date=25 May 2012|publisher=MIT Press|isbn=978-0-262-30065-0|pages=196–}}</ref>