| IT | AS202146 | Alpaky |
| IT | AS208017 | fastkom srl |
| IT | AS15660 | Findomestic Banca S.p.A. |
| IT | AS15663 | UMBRIA_NET |
| IT | AS48135 | Leonardo S.p.A. |
| IT | AS29094 | Banca Mediolanum S.p.A. |
| IT | AS209172 | Presidenza del Consiglio dei Ministri - Dipartimento delle informazioni per la sicurezza |
| IT | AS58150 | ITALY ADSL |
| IT | AS213970 | FIMAP SPA |
| IT | AS208775 | COMAC S.P.A. |
| IT | AS204651 | Sorint Lab Spa |
| IT | AS20819 | ALITALIA Societa Aerea Italiana S.p.A. |
| IT | AS209137 | Springo |
| IT | AS207594 | CONNECTIVIA |
| IT | AS12650 | Il Sole 24 Ore S.p.A. |
| IT | AS202500 | Cassa Depositi e Prestiti, S.P.A. |
| IT | AS202514 | KME srl |
| IT | AS29082 | BRT S.p.A. |
| IT | AS15981 | C.S.E. Consorzio Servizi Bancari Soc. Cons. a r.l. |
| IT | AS209026 | WT Tech |
| IT | AS41169 | GE AVIO S.R.L. |
| IT | AS57039 | Nord Ovest s.p.a. |
| IT | AS35051 | Nexi Payments S.P.A. |
| IT | AS12498 | FinecoBank S.p.A. |
| IT | AS60559 | Maxfon Srl |
| IT | AS20959 | Telecom Italia S.p.A. |
| GB | AS21433 | Accenture |
| IT | AS200547 | MTK S.R.L. |
| IT | AS33986 | Redder Telco |
| IT | AS200073 | LUTECH S.P.A. |
| US | AS3573 | Accenture LLP |
| GB | AS15404 | COLT Technology Services Group Limited |
| IT | AS201045 | BASE DIGITALE PLATFORM S.P.A. |
| IT | AS204358 | OPEN Dot Com S.p.a. |
| IT | AS209887 | Biesse S.p.A |
| IT | AS200448 | PCS GROUP SPA |
| IT | AS200616 | Acciaierie Bertoli Safau S.p.A |
| AT | AS209812 | Spar Business Services GmbH |
| IT | AS43843 | BrianTel |
| IT | AS60814 | Dipartimento della Protezione Civile |
| IT | AS12515 | RS Advanced Systems S.R.L. |
| IT | AS200854 | Allitude S.p.A. |
| IT | AS39808 | Fontel |
| IT | AS198462 | NEW SRL |
| IT | AS202132 | Sysman Progetti & Servizi srl |
| IT | AS41325 | REGIONE MARCHE |
| IT | AS206966 | PAC 2000 A S.C. |
| IT | AS197589 | Alfanews |
| IT | AS197807 | Eos sistemi s.r.l. |
| IT | AS41734 | Comifar Distribuzione S.p.A. |
