"Home use" pertains to relatively small volumes - what a family is likely to use. These machines are NOT certified for commercial use. If you are selling espresso-based drinks, or make large volumes throughout the day (as in many offices), you will need commercial equipment. Commercial equipment is more rugged, and will be NSF, ETL, or UL certified. You should ask the local inspector what is required before purchasing for business use.
For those of us who really love coffee and everything to do with it, an espresso maker meant for home use might not be everything you’re looking for. Professional espresso machines can be installed and used at home to great effect.
Any business that tends to have customers waiting could benefit from installing commercial espresso machines. Car dealerships, mechanics, hair salons, spas, and doctor’s offices among others can offer an espresso drink to entertain and satisfy their customers while they wait