Ferrum Forge is by far my favorite. They are extremely solid and great all around EDC knives! They always have great ergonomics, blade geometry, Heat treat, and great steel. Solid lock up, good action, durable, blade finger choil, Steel lock insert, HRD, etc. Plus they always have a new model every month or so.
I have a bunch of knives, all different makers, but FFKW gets my business the most out of all the makers I like. Plus they are good guys and are always willing to help you with any problem you might have. For instance, I bought a heavily used SM100 phototype of theirs from someone for very very cheap, sent it to them and they fixed it up like brand new for a great price, along with some extra parts for my other FFKW knives. Which I will probably never need, but nice to have them. They are built to last.
Others I have had/have which are worth considering.
Jake hoback makes great midtechs. Olamic midtechs are awesome too! Mac Wasil makes good customs under 1000. There are some production knives that are definitely equal to or above mid tech quality. I hear Reate knives are fantastic!
Got to add Jeremy Robertson. I bought some of his customs on the secondary market for a decent price and they have become my 2nd favorite for harder use EDC.