companies that are off my radar:
sog: it is not what it used to be
victorinox: fragile knives
ontario: rust problems and poor edge holding over the long run
ka bar: not as robust as it claims to be, some of the kabars are made in china
spyderco: no my favorite designs and not the safest folding knives
mod: not my favorite designs
dark ops: poor ergonomics and too much copied from extrema ratio
tops: nothing special
buck: it is not what it used to be
fall kniven: a laminated vg10 blade that can chip badly
companies that are on my radar:
gerber: for the silver trident with a 154 cm blade and for the markII reedition with a s30v blade
kizlyar: robust russian knives with 65x13 steel, fabulous quality
rosarms zlatoust: robust russian knives with 110x18m and 40x10-c2m steel blades, slightly above kizlyar in terms of fit and finish, fabulous quality and outstanding price too
blackjack: outstanding quality and great edge holding over the long run
randall: expensive but you get what you pay for, O1 premium steel is hard to beat
MCUSTA: great knives with great blades
extrema ratio: because of the bohler n690 steel used in the blades and because of the 3909
http://www.extremaratioknivesdivision.eu/inglese/military/3909.htm#
bark river: great design and edge holding
ardennlame: great handmade knives with solid 440c blades