| Organisation (Click to list alphabetically) | A | AA |
| A-Novo | 100.00 | 100.00 |
| ANT Software | 100.00 | 100.00 |
| AQL | 100.00 | 100.00 |
| AVST | 100.00 | 100.00 |
| Alpha Telecom | 100.00 | 100.00 |
| Alternative Networks | 100.00 | 100.00 |
| Avonline | 100.00 | 100.00 |
| Bango | 100.00 | 100.00 |
| Boltblue | 100.00 | 100.00 |
| Cellcast | 100.00 | 100.00 |
| Dynmark International | 100.00 | 100.00 |
| EDCommunications | 100.00 | 100.00 |
| Eircom | 100.00 | 100.00 |
| Elite Mobile | 100.00 | 100.00 |
| Eurolink Telecom | 100.00 | 100.00 |
| Genesys Conferencing | 100.00 | 100.00 |
| IDN Telecom | 100.00 | 100.00 |
| IDT Europe | 100.00 | 100.00 |
| Invomo | 100.00 | 100.00 |
| Jersey Telecom | 100.00 | 100.00 |
| Lebara | 100.00 | 100.00 |
| Mason Communications | 100.00 | 100.00 |
| Mediaburst | 100.00 | 100.00 |
| National Grid Wireless | 100.00 | 100.00 |
| Netsize | 100.00 | 100.00 |
| Nokia | 100.00 | 100.00 |
| OneBill Telecom | 100.00 | 100.00 |
| SITA Networks | 100.00 | 100.00 |
| Spirent | 100.00 | 100.00 |
| Spitfire Technology Group | 100.00 | 100.00 |
| THUS | 100.00 | 100.00 |
| Telecom Direct | 100.00 | 100.00 |
| Vanco | 100.00 | 100.00 |
| VarTec & TalkTalk Direct | 100.00 | 100.00 |
| Maintel Holdings | 100.00 | 99.21 |
| Avaya UK | 99.22 | 100.00 |
| Callserve Communications | 99.21 | 100.00 |
| Phones 4u | 99.21 | 100.00 |
| Toucan Telecom | 99.20 | 100.00 |
| Sky Blue Telecom | 98.89 | 100.00 |
| Vodafone | 98.40 | 100.00 |
| AT Communications Group | 98.26 | 99.13 |
| Cable & Wireless | 97.62 | 100.00 |
| Carphone Warehouse Group | 97.60 | 100.00 |
| Pipex Communications | 97.44 | 100.00 |
| Global Crossing | 96.83 | 100.00 |
| Orange Business Services | 96.12 | 100.00 |
| Verizon Business UK | 96.12 | 100.00 |
| NDS Group | 96.00 | 100.00 |
| Telecom Plus | 95.20 | 100.00 |
| Ericsson | 94.40 | 100.00 |
| Euphony Communications | 94.12 | 100.00 |
| Cisco Systems | 93.60 | 100.00 |
| Geo | 93.24 | 100.00 |
| Damovo | 92.00 | 99.20 |
| STL Communications | 91.94 | 100.00 |
| Spectrum Interactive | 90.48 | 100.00 |
| ISIS Telecom | 90.35 | 100.00 |
| Viatel | 89.76 | 100.00 |
| ECI Telecom | 88.00 | 100.00 |
| Vislink | 87.76 | 100.00 |
| FLAG Telecom | 87.60 | 100.00 |
| Orange | 84.80 | 100.00 |
| Dial-a-Phone | 80.00 | 99.20 |
| Affiniti | 76.80 | 100.00 |
| Azzurri Communications | 74.02 | 100.00 |
| Windsor Telecom | 73.60 | 100.00 |
| NEG Telecom | 63.46 | 100.00 |
| Arqiva | 61.24 | 100.00 |
| Virgin Media | 59.20 | 100.00 |
| first:telecom | 53.33 | 100.00 |
| Bailey Teswaine | 52.24 | 100.00 |
| Your Communications | 51.85 | 98.15 |
| BT Ireland | 48.72 | 100.00 |
| PageOne Communications | 46.83 | 100.00 |
| Adam Phones | 42.52 | 100.00 |
| Direct Save Telecom | 41.38 | 100.00 |
| VSNL Telecommunications UK | 39.84 | 100.00 |
| Motorola | 35.71 | 100.00 |
| COLT | 32.28 | 99.21 |
| Hypertag | 28.85 | 100.00 |
| Neos Networks | 28.57 | 100.00 |
| Level 3 Communications | 20.80 | 100.00 |
| The Cloud | 20.69 | 37.93 |
| 3 | 20.00 | 96.00 |
| Eurotel | 19.23 | 100.00 |
| Opal Telecom | 19.20 | 100.00 |
| Mobestar | 19.20 | 52.00 |
| 4D Telecom | 17.65 | 100.00 |
| Nortel | 16.28 | 100.00 |
| Admiral Group | 14.75 | 100.00 |
| Telent | 14.40 | 100.00 |
| TalkTalk | 13.49 | 100.00 |
| Sony Ericsson | 13.39 | 99.21 |
| Dot Mobile | 12.40 | 100.00 |
| Genesis Communications | 12.00 | 100.00 |
| Zen Internet | 11.11 | 100.00 |
| Smart Telecom | 10.39 | 100.00 |
| Manx Telecom | 10.16 | 100.00 |
| AOL UK | 10.00 | 100.00 |
| Armstrong Communications | 8.82 | 100.00 |
| Tiscali UK | 8.80 | 95.20 |
| Mercury Telecom | 8.00 | 96.00 |
| Data Connection | 7.94 | 100.00 |
| 4Com | 7.14 | 100.00 |
| The Number 118 118 | 6.67 | 100.00 |
| MLL Telecom | 6.40 | 100.00 |
| AT&T | 5.56 | 100.00 |
| Patientline UK | 5.00 | 100.00 |
| Teleware | 3.20 | 100.00 |
| T-Mobile | 3.20 | 97.60 |
| Easynet | 3.15 | 100.00 |
| Redstone | 2.40 | 100.00 |
| Alcatel-Lucent | 1.59 | 100.00 |
| Inmarsat | 1.59 | 100.00 |
| Virgin Mobile | 1.59 | 100.00 |
| Interoute | 1.55 | 96.90 |
| O2 | 0.79 | 96.85 |
| Claranet | 0.78 | 100.00 |
| Ascom | 0.00 | 100.00 |
| Chess Telecom | 0.00 | 100.00 |
| Mitel Networks | 0.00 | 100.00 |
| NTT Europe Online | 0.00 | 100.00 |
| NextiraOne | 0.00 | 100.00 |
| Pennine Telecom | 0.00 | 100.00 |
| Skype | 0.00 | 100.00 |
| Symphony Telecom | 0.00 | 100.00 |
| TelecityRedbus | 0.00 | 100.00 |
| Telspec | 0.00 | 99.20 |
| South West Communications Group | 0.00 | 96.49 |
| Telstra Europe | 0.00 | 95.28 |
| BT Group | 0.00 | 12.00 |
| Sense Internet | 0.00 | 4.55 |
| Arkadin | 0.00 | 1.56 |