| Blackrock Investment Management (uk) Limited | MLIMGB2X | 1 code |
| Blackrock Life Limited | BLLFGB21 | 1 code |
| Blackrock UK Holdco Limited | MLIAGB21 | 1 code |
| Blakeney LLP | BLLLGB21 | 1 code |
| Bloomberg Lp | BLBGGB2L | 27 codes |
| Bloomberg Lp | BLBGGB3L | 3 codes |
| Bloomberg Lp | BLBGGB4L | 22 codes |
| Bloomberg Lp | BLBGGB5L | 4 codes |
| Bloomberg Lp | BLBGGB6L | 2 codes |
| Bloomberg Lp | BLBGGB71 | 1 code |
| Bloomberg Lp | BLBGGB8L | 1 code |
| Blue Mountain (london), LLP | BMCPGB21 | 1 code |
| Blue Planet Investment Management Ltd | BPIGGB21 | 1 code |
| Bluebay Asset Management LLP | BLAMGB21 | 1 code |
| Bluecrest Capital Management (uk) LLP | BLCAGB2L | 1 code |
| Bluecrest Capital Management (uk) LLP | BPMLGB21 | 1 code |
| Bluefin Europe LLP | BLEPGB21 | 1 code |
| Bluestone Mortgages Limited | WEFIGB21 | 1 code |
| Bmo Am Investment Services Limited | ESSNGB21 | 1 code |
| Bmo Asset Management (holdings) PLC | FRISGB21 | 1 code |
| Bmo Asset Management Limited | MNNAGB21 | 1 code |
| Bmo Capital Markets Limited | NETHGB21 | 1 code |
| Bmo Capital Markets Limited | NETHGB3L | 2 codes |
| Bmo Fund Management Limited | RSAUGB21 | 1 code |
| Bmo Managers Limited | RIAMGB21 | 1 code |
| Bmo Rep Asset Management PLC | FISFGB21 | 1 code |
| Bmo Unit Trust Managers Limited | FPUTGB21 | 1 code |
| Bnkpro Ltd | BKPRGB22 | 1 code |
| Bnkpro Ltd | FXIVGB22 | 1 code |
| Bnp Capital Markets Limited | BNCMGB21 | 1 code |
| Bnp Paribas (london) Securities Len Ding | PCMSGB21 | 1 code |
| Bnp Paribas Asset Management UK Ltd | BPAEGB21 | 1 code |
| Bnp Paribas Limited | BPITGB21 | 1 code |
| Bnp Paribas London Branch | BNPAGB22 | 10 codes |
| Bnp Paribas London Branch | HNADGB2L | 3 codes |
| Bnp Paribas London Branch | PARBGB2L | 16 codes |
| Bnp Paribas London Branch | PARBGBL1 | 179 codes |
| Bnp Paribas PLC | BNPAGB21 | 1 code |
| Bnp Paribas UK Limited | PAIBGB21 | 1 code |
| Bny Mellon Capital Markets Emea Limited | BCSNGB21 | 1 code |
| Bny Mellon Capital Markets Emea Limited | BMCKGB21 | 2 codes |
| Bny Mellon Emea Limited | MEGVGB21 | 1 code |
| Bny Mellon Fund Managers Limited | MFUNGB21 | 1 code |
| Bny Mellon Fund Managers Limited | NEFMGB21 | 1 code |
| Bny Mellon Trust And Depositary (uk) Limited | NYTDGB21 | 1 code |
| Bod Wealth Management Ltd | BOWMGB21 | 1 code |
| Bodycote International Limited | BODYGB22 | 1 code |
| Bodycote PLC | BOYCGB22 | 1 code |
| Boerse Berlin | XBERGB21 | 1 code |
| Bohler And Associates Ltd | BOACGB21 | 1 code |
| Border To Coast Pensions Partnership Ltd | BCOAGB22 | 1 code |
| Border To Coast Pensions Partnership Ltd | BCOAGB33 | 1 code |
| Bordier And Cie (uk) PLC | BEAGGB21 | 1 code |
| Bottomline Payment Services Limited | FCCHGB22 | 72 codes |
| Bound Rates Limited | BOETGB22 | 1 code |
| Boussard And Management LLP | BOGGGB21 | 1 code |
| Boussard And Management Lp | BGANGB21 | 1 code |
| Bp International Limited | BPGBGB2L | 1 code |
| Bp International Limited | BPGBGB5C | 1 code |
| Bp Investment Management Limited | IMANGB21 | 1 code |
| Bp Oil International Limited | OIINGB21 | 1 code |
| Bp Oil UK Limited | OILOGB21 | 1 code |
| Bp Remit Limited | REMTGB22 | 1 code |
| Bradshaw Asset Management Limited | BRANGB21 | 1 code |
| Braemar Limited | SIPRGB21 | 1 code |
| Brains Inc Limited | BRNIGB21 | 1 code |
| Brambles Enterprises Ltd | BRAMGB2L | 1 code |
| Branston And Gothard Ltd. | BRAGGB21 | 1 code |
| Branston And Gothard Ltd. | BRAGGB31 | 1 code |
| Brazauk Ltd | CMRLGB21 | 1 code |
| Brazauk Ltd | MSBBGB2L | 1 code |
| Brazauk Ltd | MSBBGB3L | 1 code |
| Breinrock UK Ltd | BRIKGB2L | 1 code |
| Brennus Asset Mngt LLP | BSNLGB21 | 1 code |
| Brevan Howard Asset Management LLP | BRHWGB21 | 1 code |
| Brewin Broking Limited | STBOGB21 | 1 code |
| Brewin Broking Limited | WISKGB21 | 1 code |
| Brewin Dolphin Limited | BRDOGB21 | 1 code |
| Brewin Nominees Limited | BRWNGB21 | 1 code |
| Bri Wealth Management PLC | BRSMGB21 | 1 code |
| Brick Lane Capital Management Limited | BLPMGB21 | 1 code |
| Bridgepoint Advisers Limited | BRAPGB21 | 1 code |
| Bridgepoint Advisers Limited | BRDDGB2L | 1 code |
| Bridgepoint Private Equity Ltd | BRPEGB21 | 1 code |
| Bristol And West PLC | BRWEGB21 | 1 code |
| Bristol- Myers Squibb Pharmaceuticals Limited | CLGNGB22 | 1 code |
| Brit Fx Ltd | BTTTGB22 | 1 code |
| Brit Limited | BITTGB2L | 1 code |
| Britannia Global Investments Limited | BRGVGB22 | 1 code |
| Britannia Global Markets Limited | BEKFGB21 | 1 code |
| Britannia Global Payments Limited | BRGYGB22 | 1 code |
| Britannia Life Ltd. | BRTLGB21 | 1 code |
| Britannic Energy Trading Limited | BRETGB21 | 1 code |
| Britannic Trading Ltd | BRTRGB21 | 1 code |
| British Airways Management | BAEVGB21 | 1 code |
| British Arab Commercial Bank PLC | BACMGB2L | 1 code |
| British Broadcasting Corporation | BBCPGB2L | 1 code |
| British Gas Pension Funds Management Ltd. | BGPFGB21 | 1 code |
| British Telecommunications PLC | BTCTGB2L | 1 code |
| Broad Street Principal Investments UK Ltd | GSFNGB21 | 1 code |
| Broadbridge | BROAGB21 | 1 code |
| Broadridge Financial Solutions Ltd | CNETGB2L | 87 codes |
| Brokertec Europe Limited | BTECGB2L | 1 code |
| Brokertec Europe Limited | INEDGB21 | 1 code |
| Brompton Asset Management LLP | BSEPGB21 | 1 code |
| Brook Corporate Finance Limited | BCFLGB21 | 1 code |
| Brooks Macdonald Asset Management Limited | BMAAGB21 | 3 codes |
| Brooks Macdonald Asset Management Limited | RFAMGB21 | 1 code |
| Brooks Macdonald Gayer And Co Limited | BRMGGB21 | 1 code |
| Brother Finance (u.k.) PLC | BRFNGB22 | 1 code |
| Brown Advisory Limited | BRAVGB21 | 1 code |
| Brown Brothers Services Ltd | BBHIGB21 | 1 code |
| Brown Shipley And Co. Limited | BSCOGB2L | 1 code |
| Brown Shipley And Co. Limited | BSCOGB3L | 1 code |
| Brunswick Capital Management Ltd | BRCNGB21 | 1 code |
| Bryan Garnier And Co. Limited | BRGAGB21 | 1 code |
| Bt Group PLC | BTGUGB22 | 1 code |
| Bt Pension Scheme Management Limited | BTSMGB2L | 1 code |
| Btg Pactual Europe LLP | BPULGB21 | 1 code |
| Btig Limited | BTIGGB21 | 1 code |
| Btomorrow Ventures Limited | BTVEGB22 | 1 code |
| Buck And Willis Healthcare Ltd | BUWHGB21 | 1 code |
| Buck Consultants Shareplan Trustees Limited | BETRGB21 | 1 code |
| Buckinghamshire Building Society | BUCKGB2C | 1 code |
| Buckinghamshire Building Society | BUCKGBC1 | 1 code |
| Burberry Limited | BURBGB2L | 1 code |
| Burberry Limited | BURBGB3L | 1 code |
| Burdett Buckeridge And Youg Ltd | BBYOGB21 | 1 code |
| Bureau Buttercrane Ltd | BUEEGB22 | 1 code |
| Bureau Fiduciaire LLP | BUFPGB21 | 1 code |
| Burlings Bank Ltd | BURIGB22 | 1 code |
| Burton Advisers Limited | BUADGB21 | 1 code |
| Business Support And Financial Company Ltd | CGSFGB21 | 1 code |
| Bux Financial Services Limited | ELAMGB21 | 1 code |
| Bux Financial Services Limited | VDGMGB21 | 1 code |
| Byblos Bank Europe S.a. (london Branch) | BYBBGB2L | 1 code |
| Bzx Investments Ltd | BZXIGB22 | 1 code |
| C And C Global Arbitrage Limited | GLOGGB21 | 1 code |
| C And J Clark Limited | CLRKGB22 | 1 code |
| C B Financial Services Limited | ONFMGB21 | 1 code |
| C Czarnikow Sugar Futures Ltd | CZSFGB21 | 1 code |
| C-quadrat Asset Management (uk) LLP | BMPLGB21 | 1 code |
| C-view Limited | VIWWGB21 | 1 code |
| C. Hoare And Co. | HOABGB2L | 2 codes |
| Caceis Bank, UK Branch | ISAEGB2L | 1 code |
| Cadmus Organisation Ltd, The | CAORGB21 | 1 code |
| Cadogan Asset Management Limited | CDAEGB21 | 1 code |
| Caf Bank Ltd | CAFBGB21 | 1 code |
| Caf Bank Ltd | CAFBGB2M | 1 code |
| Cairn Capital Limited | CAFUGB21 | 1 code |
| Cairnsea Investments Limited | CAIGGB21 | 1 code |
| Caixabank, S.a. UK Branch | CAIXGB2L | 1 code |
| Cal Investments Ltd | CAIVGB21 | 1 code |
| Calastone Ltd | CLAOGB2L | 1800 codes |
| Calculus Capital Limited | MCGLGB21 | 1 code |
| Caledonia Investments PLC | CALIGB2L | 1 code |
| Calforex Limited | CAOXGB21 | 1 code |
| Callund Consulting Ltd | CACSGB21 | 1 code |
| Calthorpe Ltd | CALRGB21 | 1 code |
| Calthorpe Ltd. | CALTGB21 | 1 code |
| Cambria Ltd | CABBGB21 | 1 code |
| Cambridge And Counties Bank Limited | POYRGB21 | 1 code |
| Cambridge And Counties Bank Limited | POYRGB22 | 1 code |
| Cambridge Associates Ltd | CAACGB21 | 1 code |
| Cambridge Building Society | CMBGGB21 | 1 code |
| Cambridge Building Society | CMBGGB22 | 1 code |
| Cambridge Capital Ltd. | CAMTGB21 | 1 code |
| Cambridge Mercantile Corp. (uk) Limited | CMFXGB2L | 3 codes |
| Cambridge Mercantile Risk Management (uk) Ltd. | CMKMGB22 | 1 code |
| Cameron Asset Management Ltd. | CASMGB21 | 1 code |
| Cameron Mackintosh (overseas) Ltd | CAAVGB21 | 1 code |
| Cameron Mackintosh Ltd | CACTGB21 | 1 code |
| Cameron Mackintosh Services) Ltd | CMFSGB21 | 1 code |
| Camomille Associates Limited | CAAEGB21 | 1 code |
| Camomille LLP | CLLPGB21 | 1 code |
| Campbell Lutyens And Co Ltd | CALYGB21 | 1 code |
| Canaccord Genuity Hawkpoint Limited | HAPRGB21 | 1 code |
| Canaccord Genuity Limited | CSTEGB2L | 1 code |
| Canaccord Genuity Wealth Limited | EDFIGB21 | 1 code |
| Canaccord Limited | EDENGB21 | 1 code |
| Canada Life Asset Management Ltd | CLANGB21 | 1 code |
| Canada Life Limited | CNLFGB21 | 1 code |
| Canada Life Management (uk) Ltd | CALMGB21 | 1 code |
| Canadian Imperial Bank Of Commerce | CIBCGB2L | 1 code |
| Canadian Imperial Bank Of Commerce | CIBCGB5T | 1 code |
| Canara Bank | CNRBGB2L | 2 codes |
| Canonbury Group Ltd | ODPAGB21 | 1 code |
| Cantab Capital Partners LLP | CCPRGB21 | 1 code |
| Cantillon Capital Management LLP | CCGPGB21 | 1 code |
| Cantor Fitzgerald Europe | CAFLGB21 | 1 code |
| Cantor Fitzgerald Europe | CFEQGB21 | 1 code |
| Cantor Fitzgerald Europe | CFEQGB2L | 4 codes |
| Cantor Index Limited | CANXGB21 | 1 code |
| Canyon Capital Advisors (europe) Limited | CCDEGB21 | 1 code |
| Capeview Capital LLP | CPAPGB21 | 1 code |
| Capita Employee Benefits Limited | CAYBGB21 | 1 code |
| Capita Employee Benefits Limited | CAYBGB31 | 1 code |
| Capita Life And Services Limited | CLPRGB21 | 1 code |
| Capita Life And Services Limited | PEPMGB31 | 1 code |
| Capita Pensions Solutions Limited | CPLSGB2L | 1 code |
| Capita PLC | CAPTGB2L | 7 codes |
| Capita PLC | CIPTGB21 | 1 code |
| Capital Financial Markets Limited | CFMKGB22 | 1 code |
| Capital Generation Partners LLP | CGPLGB21 | 1 code |
| Capital Generation Partners Services Limited | SIALGB21 | 1 code |
| Capital House Investment Management Ltd | CHIMGB21 | 1 code |
| Capital Institutional Services Inc | CANRGB21 | 1 code |
| Capital International Limited | CPILGB2L | 2 codes |
| Capital Markets Trading UK LLP | CMTLGB21 | 1 code |
| Capital Markets Trading UK LLP | CMTPGB21 | 1 code |
| Capital One (europe) PLC | CPNUGB22 | 1 code |
| Capital Partnership (uk) Ltd, The | CAPHGB21 | 1 code |
| Capital Strategies Ltd | CATGGB21 | 1 code |
| Capital Trust Financial Management Ltd | CTFMGB21 | 1 code |
| Capital Trust Limited | CATUGB21 | 1 code |
| Capitaltrack Limited | CTRKGB21 | 1 code |
| Capitex Group Limited | CAXEGB22 | 1 code |
| Capricorn Energy PLC | CRNEGB2S | 1 code |
| Capricorn Fund Managers Limited | CPFMGB21 | 1 code |
| Capstone Investment Advisors (uk) LLP | CPIDGB21 | 1 code |
| Capula Investment Management LLP | CINLGB21 | 1 code |
| Capula Investment Management LLP | CPIMGB22 | 2 codes |
| Capula Investment Management LLP | CPIMGB2L | 1 code |
| Capvest Limited | CAVTGB21 | 1 code |
| Cardale Asset Management Limited | CATKGB21 | 1 code |
| Cardano Risk Management Limited | CRKNGB22 | 1 code |
| Cardano Risk Management Limited | CRKNGB33 | 1 code |
| Cardaq Limited | CAQAGB22 | 1 code |
| Cargill Global Funding PLC | CAFMGB22 | 21 codes |
| Cargill Global Funding PLC | CAGFGB22 | 2 codes |
| Carlin Equities Corporation | CECCGB21 | 1 code |
| Carlson Capital Holdings UK Ltd | CLAIGB21 | 1 code |
| Carnegie International Limited | CARNGB21 | 1 code |
| Carnegie Investment Bank AB | DSETGB21 | 1 code |
| Carphone Warehouse Europe Limited | BBEDGB2L | 1 code |
| Carrousel Digital Limited | CRLPGB21 | 1 code |
| Cashflows Europe Limited | CASHGB2L | 1 code |
| Cashpot Limited | CAHPGB22 | 1 code |
| Castile Acquisitions Ltd | CAAQGB21 | 1 code |
| Castle Harbour Securities LLP | CHTPGB21 | 1 code |
| Castle Hill Asset Management LLP | CHSNGB21 | 1 code |
| Castle Trust Capital PLC | CSRAGB22 | 1 code |
| Castle Trust Capital PLC | CSRAGB2A | 1 code |
| Castlebrook Limited | BAOGGB21 | 1 code |
| Castlefield Investment Partners LLP | CIPPGB21 | 1 code |
| Catalyst Fund Research Limited | CFMRGB21 | 1 code |
| Catapult Venture Managers Limited | CAVMGB21 | 1 code |
| Cater Allen Ltd. | CATEGB21 | 1 code |
| Cathedral Capital Management Ltd | CACGGB21 | 1 code |
| Cauri Ltd | CIURGB21 | 1 code |