As I was getting lost on who is racing what bike in 2016 I made this overview. I've added riders/team only if I could find 'official' information. Please feel free to add your knowledge in order to make this list complete.

John McGuinness
Superbikes Honda Racing (Honda CBR1000RR)
Supersport Jackson Racing (Honda CBR600RR)

Conor Cummins
Superbikes Honda Racing (Honda CBR1000RR)
Superstock Jackson Racing (Honda CBR1000RR)
Supersport Jackson Racing (Honda CBR600RR)

Gary Johnson
Supersport Team T3 Racing (Triumph)

Michael Dunlop
Superbikes Hawk Racing (BMW S1000RR)

William Dunlop
Superstock MSS Preformance (Kawasaki ZX-10R)

Ian Lougher
Superbikes Suter Racing (Suter MMX500)

James Cowton
Superbikes Cowton Racing by Radcliffes (BMW S1000RR)
Supersport Cowton Racing by Radcliffes (Honda CBR 600)
Lightweight Cowton Racing by Radcliffes (Kawasaki ER6)

Davy Morgan
Superbikes Morgan Racing (Honda CBR1000RR)
Superstock Bumblebee Barn (Kawasaki ZX-10R)
Supersport Magic Bullet Motorsports (Yamaha R6)

Ian Hutchinson
Superbikes TAS Racing (BMW Motorrad S1000RR)
Superstock TAS Racing (BMW Motorrad S1000RR)
Supersport Team Traction Control (Yamaha R6)

Peter Hickman
Superbikes GBmoto (Kawasaki ZX-10R)

Dan Kneen
Superbikes Mar-train (Yamaha YZF-R1M)
Superstock Mar-train (Yamaha YZF-R1M)
Supersport Mar-train (Yamaha YZF-R6)

Ivan Lintin
Superbikes Devitt RC Express Racing (Kawasaki ZX-10R)
Supersport Devitt RC Express Racing (Kawasaki ZX-6R)
Lightweight Devitt RC Express Racing (Kawasaki ER6)


Malachi Mitchell-Thomas
Superbikes Burrows Engineering Racing  
Supersport Burrows Engineering Racing
Lightweight Burrows Engineering Racing

David Johnson
Superbikes Norton Motorcycles (SG5 Norton)

Cameron Donald
Superbikes Norton Motorcycles (SG5 Norton)

Alan Bonner
Superbikes Devitt RC Express Racing (Kawasaki ZX-10R)
Supersport Devitt RC Express Racing (Kawasaki ZX-6R)
Lightweight Devitt RC Express Racing (Kawasaki ER6)

Michael Booth