noun
enterprising person; businessperson; industrialist
Refers to someone who undertakes business ventures, often with a connotation of initiative and enterprise. More formal and less everyday than 実業家.
彼は若い頃から事業家として成功した。
He succeeded as an entrepreneur from a young age.
その事業家は新しい分野に投資している。
That industrialist is investing in new fields.
起業家 specifically means 'entrepreneur' or 'startup founder'; 事業家 is broader and can include established industrialists.
Compound of 事業 (enterprise, business) and 家 (person who does that as a profession).