What are the majority of corporations in the US?

The majority of corporations in the U.S. are small businesses, often classified as "C corporations" or "S corporations," with fewer than 500 employees. These small corporations play a crucial role in the economy, contributing to job creation and local communities. While large corporations like multinationals dominate in terms of revenue and market influence, small corporations make up the vast majority in terms of numbers, highlighting the diversity of the American business landscape.