| 51 | ADD PARTNERS LIMITED |
| 52 | ADELPHI CAPITAL LLP |
| 53 | ADELPHI CAPITAL MANAGEMENT LIMITED |
| 54 | ADG CAPITAL MANAGEMENT LLP |
| 55 | ADG MARKET MAKING LLP |
| 56 | ADG SECURITIES LLP |
| 57 | ADG TRADING LLP |
| 58 | ADIB UK LIMITED |
| 59 | ADM INVESTOR SERVICES INTERNATIONAL LIMITED |
| 60 | ADMIRAL MARKETS UK LIMITED |
| 61 | ADS SECURITIES LONDON LIMITED |
| 62 | ADVANCE TRADING (ARBITRAGE) LIMITED |
| 63 | ADVANCE TRADING (BRANCH) LIMITED |
| 64 | ADVANCE TRADING (OPTIONS) LIMITED |
| 65 | ADVANCED MARKETING ON THE INTERNET LTD |
| 66 | ADVANCED WALLET SOLUTIONS LIMITED |
| 67 | ADVANTAGE CAPITAL LIMITED |
| 68 | ADVENT CAPITAL MANAGEMENT |
| 69 | ADVENT INTERNATIONAL PUBLIC LIMITED COMPANY |
| 70 | ADVENT LIMITED |
| 71 | ADVICORP PLC |
| 72 | ADVISING FINANCIAL COMPANY LTD |
| 73 | AEA INVESTORS (UK) LTD |
| 74 | AELORIA LIMITED |
| 75 | AEQUILIBRIUM INVESTMENTS LIMITED |