I have no brand loyalty at all. I buy knives that appeal to me. That many come from a few companies and very few from others, simply reflects the common design philosophy of me and those companies.
I am big on Spyderco, but I am not interested in most of what they sell. I carry a Military almost as much as my Sebenza, but I don't own an Endura and wouldn't take a Captain as a gift. Nice knives, not my type. I just got a Temperance in today. Why did it take me so long ???
I have bought Kershaw long before the present era of AO and Ken Onion. Yes, now they're even better

But I don't look twice at most of their knives because I'm not interested in filling up shelves with knives I won't get around to using.
I have too many of those already.
It's good to develop confidence in a company for its quality and service but ultimately it comes down to whether I will like and use
this knife. In some ways I have more confidence in my fellow knife knuts than in the manufacturers. We discuss more than the steel, we discuss the use, and the associated gear.
Hey, I gotta go. I have a kitchen full of food I need to try my new Temperance out on ...