Maybe... If your company name is known well enough, or becomes well know enough that potential customers can associate a specific makers name with the company, then it might be OK. However, in the custom knife world, things tend to be on a more personal, or individual to individual level than most other business scenarios. Using a company name on a knife as a custom maker is just one more level of confusion for a potential customer. I have seen instances over the years of potential customers confusing a single individual custom knifemaker with a production knife company because of the name on the knife/knives. There is a major difference in this perception.
For example, my company is "The Montana Baldesmith" but I will not mark my knives like that because it is much simpler for someone to see my name on a knife, realize that I am an individual custom maker, and find me, versus having to see "The Montana Bladesmith" then figure out who goes by that "handle", and then find my contact information.... it's just one less layer that a potential customer has to find their way through in order to get to me and the knife/knives they are seeking.
I'm not saying that marking your blades with your name is the right choice in everybody's case, but am saying that I have seen enough over the years to understand that the use of a company name on knives, when the producer was a sole individual, can work against, rather than for, those individuals.