Of course, if you own a company, you have some kind of commercial general liability insurance. Unless you are the sole owner and you’re operating the company from your studio apartment, in which case, I assume you don’t have any liability insurance.
However in many businesses today, you simply can't operate without some type of business insurance coverage. A lot more people are obtaining specialized insurance policies from bonding insurance to directors and officers insurance and many more including insurance policies that includes gaps in insurance coverage like commercial umbrella insurance.
So many businesses have ended up learning their lessons the difficult way and finding out they didn't have the protection they hoped and believed they had. Sadly , sometimes you only become a knowledgeable expert after the fact, when a fire has occurred and you make a claim only to discover there were exclusions or exceptions and you dont have insurance protection because of x, y and z. This is destructive on a business and it's vital to determine ahead of time. So educate yourself and learn everything!