Dorian Concept

His is blue and light grey, and can be seen sitting on top of his audio interface in this video

At 3:44 he states he uses Ableton.

You can see Dorian Concept using the Casio SA-21 on one of his old youtube videos.

In this video, Dorian Concept explains how he was discovered through a video featuring the MicroKORG and how he uses some of its features in this video.

Old video, yes, but this synth is pretty focal in the performance.

Visible throughout but most notably at 1:40

Plays the Micron heavily in 2nd half of video.

"Seen playing it in the video"

In the video "Dorian Concept - J Buyers (Live)" on YouTube, Dorian Concept uses the Boss RC-1 Loop Station.

You can see his Rane TTM 56 in this video.

Quite recent (April 2015) given he doesn't put out a lot of content. The Launchkey in this video is the lower of the two keyboards, visible throughout.

His is the blue and light grey skin model, but it can be seen in this live video

Visible sitting on top of his Novation Launchkey in some blurrier shots but definitive around 2:15 and 2:47

Seen in the first seconds of the video.

"Seen in the beginning of the video."

Dorian Concept uses the Korg Minilogue XD, as seen in a video titled "Fooling around on Minilogue XD" where he performs a loop-based piece with his presets, and mentions he contributed some sounds to Korg's new "minilogue xd" synthesizer.

Dorian Concept is confirmed to use the Boss RSD-10 in the video titled "Shelf Life," as noted in the video description by the artist himself on YouTube.

Dorian Concept uses the Vesta Fire RV-2 2-Channel Spring Reverb, as shown in the YouTube video "Shelf Life" by Dorian Concept, where the gear is listed in the source description.