urm... yeah.
Any MIDI capable controller (that isn't a hunk of garbage) should work with any MIDI capable program.
They just put those "TOTES WERKS WIT PROREAPASTUIDIOLOOPS" for sales purposes.
At most what it means is a) they include MIDI maps to do certain things within the programs listed (which is nothing to sneeze at because it saves the user from mapping it all themselves) and/or b) they paid some goofus to sit there and press/move each key/button/fader/knob within those programs to make sure the right key/button/fader/knob affects the right default control/parameter of the CURRENT realease (at time of design/manufacture) of the programs.
Those two points CAN be useful (by simply saving some time by being able to just load up a map for your favorite DAW) and different programs DO use different MIDI maps (especially Sonar) BUT if MIDI signals are being sent as they should and the controller and/or audio program allows for programming to designate which MIDI data is sent/received when a specific physical key/button/fader/knob is manipulated then that controller will work with Sonar or any other MIDI capable program that isn't totally fizzuxxored... which SONAR (for the most part) isn't.
It is also quite possible that the manufacturers DID include a SONAR map (check the manual) but since SONAR is apparently considered the redheaded stepchild of the professional DAW world they don't point that out in their sales pitches because we aren't as large a user base as those other platforms. You also don't see Reaper mentioned a lot in those "WORKS WITH" blurbs even though it's at the top of the list of DAWS people use.
My rambling point is... it does not matter as long as the controller works as it should. The keys will trigger everything in sonar as they should (like synths and whatnot) but you MAY have to transpose the key base up or down a couple octaves. If there are transport buttons those will likely need to be mapped within SONAR (or the controller mapped to SONAR defaults). Your modulation and pitch wheels should just do what they are supposed to. Any knobs or faders will likely need to be mapped but aside from the automagic stuff a "PT ENABLED" controller will do (like adjust specific track parameters) you are gonna have to manually map that stuff anyway on a case by case basis.
Besides... I find a lot of those "automaps" to be crappy anyway. They can be a useful starting point but there is ALWAYS gonna be some dumb crap that doesn't work the way you PERSONALLY want so some personal mapping preferences/profiles (either within the DAW or controller if it has the capability) is required. It's also a good skill to learn if you are going down the MIDI rabbithole for the first time (which is the only reason I could see someone who's been using SONAR/DAWs for so long posting a thread like this).
So good luck.