Updated list - with the Wigan E300s, Stockton's due in the next few weeks

Alexander Dennis Enviro400MMC Euro6
10431-10442 (SK15 HCN/O/P/U/X/Y/Z, HDA/C/D/E/F): Oxford
10443-10451: Wigan
10452-10456: Exeter
10457-10487: Manchester Hyde Road

Scania N230UD Alexander Dennis Enviro400 Euro5
15211-15220 (YN15 KHH/J/K/L/M/U/R/O/?/?): Fenstanton (Guideway)
15221-15225: Lillyhall (GOLD Spec)
15226-15249: Chorley (GOLD Spec)
15250: Torquay (GOLD Spec)
15251-15260: Exeter (GOLD Spec)

Scania N230UD Alexander Dennis Enviro400MMC Euro6
15261-15290: Herne Bay

Volvo B8RLE/Wrightbus Eclipse Urban 3
21301-21310: Fenstanton (Guideway)

Alexander Dennis Enviro200MMC 11.8M Euro6
26001-26019: Cowdenbeath
26020-26023: Barnsley
26024-26033: Rawmarsh

Alexander Dennis Enviro300 Euro5
27211-27228 (SK15 HBJ/L/N/O/P/U/X/Y/Z, HCA/B/C/D/F/G/H/J/L): Glasgow (Euro6)
27229-27237 (SK15 HFR/S/T/U/V/W/X/Y/Z): Wigan
27238-27254: Stockton
27255-27272: Birkenhead Rock Ferry (GOLD Spec)
27273-27286: Cwmbran (GOLD Spec)
27287-27299: Liverpool Gillmoss

Scania K230UB Alexander Dennis Enviro300
28721-28741 (YN15 KFO/R/T/U/P/V/W/X/Y/Z, KGA/E/F/G/J/K/O/P/U/V/X): Cwmbran
28742-28746 (YM15 FPL/N/O/P/T): Banbury (GOLD Spec)
28747-28748: Lillyhall (GOLD Spec)

Alexander Dennis Enviro200 Euro5
37301-37319 (SK15 HDG/H/J/L/N, HEV, HFA/B/C/D/E/F/G/H/J/L/M/N/O): South Shields
37320-37326 (YY15 OWG/H/J/K/N/O/P): Gloucester
37327 (YY15 OWR): Hastings

Alexander Dennis Enviro200MMC Euro6
37401-37405: Oxford
37406-37423: Winchester

Optare Solo SR Euro6
47941-47943 (YJ15 ACV/EP/CX): Carlisle (Blue 60)
47944-47948 (YJ15 AEU/V/W/X/Y): Carlisle (Pink 61/61A)
47949-47953 (YJ15 AEZ/FA/EB/C/D): Carlisle (Purple 62/62A)
47954-47957 (YJ15 AEE/F/G/K): Carlisle (Orange 76)
47958-47966 (YJ15 AEL/M/N/O/T/CY/Z, ADO/U): Carlisle (Rainbow Generic)
47967-47980: Leamington (GOLD Spec)

Optare Solo SLR Euro6
48001-48002 (YJ15 ANF/MW): Carlisle (Honister spec)
48003-48025 (YJ15 ADV/X/Z, AEA, ABF/K/N/O/U/X/Z, ACF/O/U, AAE/F/K/N): Exeter
48021-48025 (YJ15AAZ, ANP/R/U/V): Kings Lynn

Volvo B8R/Plaxton Elite Euro6
53801-53812: Aberhill

Volvo B11R/Plaxton Elite I Euro6
54241-54257: Buchan
54258-54262: Glasgow
54263-54276: Rugby Megabus
55021-55028: Rugby Megabus (Left Hand Drive)

Van Hool Astromega TDX27 Euro6
56028-56050 (EZ 160-182 SZ): Megabus Italy Milan

Volvo B5LH/Alexander Dennis Enviro400MMC Euro6 London
13061-13082 (BG15 KGK/N/P/U/V/X/Y/Z, KHB/C/D/G/H/J, TVZ, TWA, KHA, TWC, KGJ/O, KHE/?): Plumstead

Alexander Dennis Enviro200MMC Euro6 London
36601-36608 (YY15 OWU/V/W/X/Z, OXA/B/C): Romford

Alexander Dennis Enviro400H Euro6 London
12364-12389 (SN15 LRJ): Plumstead

Alexander Dennis Enviro400MMC Euro6 London
10301-10307 (YY15 OYS/T/U/V/W/X/Y): Romford