| BT Group | BT.A | £1.83 | £18.3bn | FTSE 100 FTSE 350 FTSE Eurotop 100 CBOE 100 CBOE 350 STOXX600 | 
| Bunzl plc | BNZL | £23.50 | £7.6bn | FTSE 100 FTSE 350 CBOE 100 CBOE 350 STOXX600 | 
| Burberry Group | BRBY | £13.06 | £4.7bn | CBOE 100 CBOE 350 STOXX600 | 
| Bushveld Minerals Limited | BMN | £0.00 | £7mn |  | 
| Bytes Technology Group Plc | BYIT | £3.67 | £873mn | FTSE 250 FTSE 350 | 
| CAB Payments Holdings Plc | CABP | £0.52 | £131mn |  | 
| Caffyns Plc | CFYN | £4.75 | £13mn |  | 
| Cairn Homes Plc | CRN | £1.70 | £1.1bn |  | 
| Cake Box Holdings Plc | CBOX | £2.13 | £94mn |  | 
| Caledonia Investments plc | CLDN | £3.85 | £2.0bn | FTSE 250 FTSE 350 | 
| Caledonian Holdings Plc | CHP | £0.00 | £0mn |  | 
| Calnex Solutions Plc | CLX | £0.57 | £50mn |  | 
| Cambridge Cognition Holdings plc | COG | £0.36 | £16mn |  | 
| Capital Gearing Trust | CGT | £49.65 | £808mn | FTSE 250 FTSE 350 | 
| Capital Limited | CAPD | £1.20 | £235mn |  | 
| Capital & Regional plc | CAL | £0.62 | £146mn | CBOE 250 CBOE 350 | 
| Capita Plc | CPI | £3.24 | £371mn | FTSE 350 CBOE 100 CBOE 350 FTSE 250 STOXX600 | 
| Capricorn Energy Plc | CNE | £2.03 | £143mn | FTSE 250 FTSE 350 CBOE 250 CBOE 350 | 
| Cap-XX | CPX | £0.00 | £19mn |  | 
| Card Factory Plc | CARD | £1.04 | £364mn | CBOE 250 CBOE 350 | 
| Cardiff Property | CDFF | £26.00 | £26mn |  | 
| Care REIT Plc | CRT | £1.08 | £447mn |  | 
| CareTech Holdings Plc | CTH | £7.50 | £850mn |  | 
| Carnival plc | CCL | £19.40 | £2.8bn | FTSE 350 FTSE 250 CBOE 100 CBOE 350 STOXX600 S&P 500 | 
| Carrs Group Plc | CARR | £1.33 | £69mn |  | 
| Caspian Sunrise Plc | CASP | £0.02 | £48mn |  | 
| Castings plc | CGS | £2.48 | £108mn |  | 
| Catalyst Media Group Plc | CMX | £0.45 | £9mn |  | 
| Cavendish Plc | CAV | £0.10 | £40mn |  | 
| C&C Group | CCR | £1.39 | £515mn | FTSE 250 FTSE 350 |