Camillus also has some good ones. I have always liked Camillus even though the quality can be hit and miss. I have gone through a couple of their marlinspike folders. Both broke the backspring on the marlinspike after about a year, but for the price it’s still a good deal. Marlinspike knives only come in two flavors- cheap and very expensive. I tend to drop things in the water on the regular, so a cheapy serves me well. If I ever get around to making my own it will definitely have a lanyard attached when I’m on the water.