"Startup" refers to a certain type of business. You wouldn't call GE a "startup". However, "business" is a broad term (which refers to actions as often as entit

"Startup" refers to a certain type of business. You wouldn't call GE a "startup". However, "business" is a broad term (which refers to actions as often as entities), so you often hear things like "corporation" or "company" more frequently when referring to established businesses.