Aquacomputer do some. Have their 720 Aquaduct, absolutely fantastic unit, lets me keep my case which I love but lacks radiator capacity while packing in power hungry parts.
These units come with a pump built in along with acting as a res / radiators and has an Aquero unit built in, all in one solution. Has a trigger so powers on and off the entire thing with the PC and USB cable to feed data back like flow rate, temp in / out etc to Aquasuite and third party software like HWINFO.
Downside is its pricey, but build quality is superb.