The Info Tech field has become overloaded with obscure and strange terms, acronyms and abbreviations no one can possibly keep up with. IT geeks trying to sell software throw them people and businesses in order to make themselves appear smart and knowledgeable. Frankly, I'm sick of seeing it.
The Enterprise Market is a fairly well established term, having been around for a long time and in a “business vernacular” and not a hi-tech venacular.
Merriam-Webster says of “enterprise” - a business organization.