In many ways, Reaper Miniatures fulfills the spot held by Ral Partha and Grenadier in the 80s. No other miniatures company currently offers the volume and variety of Reaper. Unlike a company like Games Workshop, Reaper doesn't focus on regiments (though I kinda wish they would explore that option a bit), rather it's targeted more directly at the roleplaying crowd and there are very few gaps in its catalogue as it strives to cover every option for player character or monster one could want.
As far as sculpts, Reaper tends to be all over the map, giving an overall impression of blandness, for lack of a better term. For the most part, Reaper miniatures are going to provide a solid design. Nothing too fancy, little that is special per se, but overwhelmingly competent. And this is where it falls a bit short of the 80s companies I compared it to. Its hard to fault Reaper miniatures, but at the same time its hard to praise them.
Reaper started in Fort Worth Texas in 1992, incidentally somewhere I lived in 1995, but by that point they'd moved to Lewisville. Originally they sold fantasy jewelry and WW2 plane models, then got into the fantasy miniatures game in with the Dungeon Dweller 25mm line, a conglomerate of several molds they'd purchased from defunct companies. After briefly dabbling in the CCG craze in the wake of Magic: The Gathering, Reaper launched their own 25mm fantasy line, Dark Heaven. Dark Heaven is now considered the "top-selling fantasy role-playing game (RPG) miniature line in the world."
Reaper currently maintains 9 miniature lines, including Chronoscope, Warlord, Pathfinder, Bones, etc. Though most of these are listed as 25mm, scale actually varies wildly, sometimes within the same range of figures. More accurately, Reaper miniatures range from True 25mm at the smallest to Heroic 28mm (bordering on 32mm) at the largest, and it seems to depend on the individual sculptor rather than any attempt to maintain coherence.
Better pictures of the line are pretty far and few between online, but I've managed to find a few, anyone interested in painted examples should check out this website.
though its a shame not more of an effort was made for a comprehensive line to replace The Verminites.
This was compensated for somewhat when an "Oh, Rats!" option was added to the incredibly popular Bones II Kickstarter, featuring a Wererat Matriarch, Wererat Centaur, Wererat Ogre, along with an assassin and two warriors. To date this is the extent of the Wererat options available through Reaper, though the recent announcement of a Bones IV Kickstarter in spring of 2017 brings hope of more to come.