| 1 | ORANGE ROMANIA SA | Bucureşti Sectorul 1 | Bucureşti | 7.5 bn | 3,931 |
| 2 | DIGI ROMANIA S.A. | Bucureşti Sectorul 5 | Bucureşti | 6.0 bn | 9,680 |
| 3 | VODAFONE ROMANIA SA | Bucureşti Sectorul 2 | Bucureşti | 5.7 bn | 3,023 |
| 4 | ORANGE SERVICES SRL | Bucureşti Sectorul 2 | Bucureşti | 583.1 m | 1,677 |
| 5 | SOCIETATEA NATIONALA DE RADIOCOMUNICATII SA | Bucureşti Sectorul 4 | Bucureşti | 258.9 m | 1,142 |
| 6 | CENTRUL PENTRU SERVICII DE RADIOCOMUNICATII SRL | Bucureşti Sectorul 1 | Bucureşti | 223.7 m | 57 |
| 7 | GTS TELECOM SRL | Bucureşti Sectorul 5 | Bucureşti | 180.5 m | 140 |
| 8 | COMBRIDGE SRL | Bucureşti Sectorul 4 | Bucureşti | 162.8 m | 127 |
| 9 | FOCALITY SRL | Municipiul Iaşi | Iaşi | 147.8 m | 46 |
| 10 | PRIME TELECOM SRL | Bucureşti Sectorul 1 | Bucureşti | 94.9 m | 147 |
| 11 | TELCOR COMMUNICATIONS SRL | Bucureşti Sectorul 2 | Bucureşti | 94.9 m | 25 |
| 12 | COMPANIA MUNICIPALĂ ILUMINAT PUBLIC BUCUREȘTI S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 83.9 m | 154 |
| 13 | NEXTGEN COMMUNICATIONS SRL | Bucureşti Sectorul 1 | Bucureşti | 82.5 m | 315 |
| 14 | RARTEL SA | Bucureşti Sectorul 1 | Bucureşti | 81.0 m | 41 |
| 15 | NETCITY TELECOM S.A. | Bucureşti Sectorul 6 | Bucureşti | 73.2 m | 32 |
| 16 | Telecomunicatii C.F.R. SA | Bucureşti Sectorul 1 | Bucureşti | 71.7 m | 524 |
| 17 | INES GROUP SRL | Bucureşti Sectorul 1 | Bucureşti | 70.6 m | 60 |
| 18 | ROMSERVICE TELECOMUNICATII SRL | Bucureşti Sectorul 2 | Bucureşti | 57.8 m | 48 |
| 19 | NTH MOBILE SRL | Bucureşti Sectorul 4 | Bucureşti | 52.4 m | 1 |
| 20 | EUROWEB ROMANIA S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 52.0 m | 39 |
| 21 | COLT TECHNOLOGY SERVICES RO SRL | Municipiul Sibiu | Sibiu | 51.8 m | 191 |
| 22 | DIRECT ONE SA | Bucureşti Sectorul 1 | Bucureşti | 48.5 m | 64 |
| 23 | MAGUS PROTECT TECHNOLOGIES S.R.L. | Oraş Voluntari | Ilfov | 47.1 m | 18 |
| 24 | CONNECT44 NETWORK SERVICES SRL | Bucureşti Sectorul 5 | Bucureşti | 46.7 m | 201 |
| 25 | ALTMEDIA TELECOM SRL | Bucureşti Sectorul 2 | Bucureşti | 43.2 m | 2 |
| 26 | INTERKVM HOST S.R.L. | Loc. Lipova, Oraş Lipova | Arad | 40.6 m | 10 |
| 27 | VOXILITY SRL | Bucureşti Sectorul 2 | Bucureşti | 36.4 m | 49 |
| 28 | RED IT SOLUTIONS SRL | Bucureşti Sectorul 2 | Bucureşti | 29.6 m | 8 |
| 29 | IDILIS SRL | Bucureşti Sectorul 1 | Bucureşti | 28.1 m | 4 |
| 30 | BACKUP TECHNOLOGY SRL | Municipiul Timişoara | Timiş | 27.6 m | 21 |
| 31 | TELCORE SOLUTIONS S.R.L. | Sat Cristeşti, Comuna Cristeşti | Mureş | 25.1 m | 0 |
| 32 | MIRA TECHNOLOGIES GROUP SRL | Bucureşti Sectorul 2 | Bucureşti | 23.2 m | 32 |
| 33 | PAYTEL SRL | Sat Satu Nou, Comuna Muntenii de Sus | Vaslui | 21.1 m | 6 |
| 34 | FOMCO GPS S.R.L. | Sat Cristeşti, Comuna Cristeşti | Mureş | 18.0 m | 28 |
| 35 | ASCOM MOBILE SOLUTIONS ROMANIA S.R.L. | Municipiul Cluj-Napoca | Cluj | 15.5 m | 48 |
| 36 | TELLERRA CALL S.R.L. | Bucureşti Sectorul 5 | Bucureşti | 15.1 m | 4 |
| 37 | UNIVERSAL CARD SYSTEMS SA | Bucureşti Sectorul 1 | Bucureşti | 14.2 m | 29 |
| 38 | TV SAT 2002 SRL | Municipiul Râmnicu Sărat | Buzău | 14.1 m | 35 |
| 39 | TELENES MOBILE CONNECT SRL | Bucureşti Sectorul 1 | Bucureşti | 13.9 m | 3 |
| 40 | TELECONSTRUCT COMPANY SRL | Municipiul Iaşi | Iaşi | 13.8 m | 35 |
| 41 | ORANGE BUSINESS ROMANIA S.A. | Bucureşti Sectorul 2 | Bucureşti | 13.6 m | 6 |
| 42 | EURODESIGN MONDIAL CONSTRUCT SRL | Bucureşti Sectorul 6 | Bucureşti | 12.8 m | 29 |
| 43 | COMPANIA DE CABLU SI COMUNICATII ELECTRONICE SRL | Bucureşti Sectorul 4 | Bucureşti | 11.8 m | 1 |
| 44 | DENIS DTH TV SRL | Sat Ştefăneştii Noi, Oraş Ştefăneşti | Argeş | 11.7 m | 7 |
| 45 | KPO - COMPUTERS SRL | Bucureşti Sectorul 2 | Bucureşti | 10.5 m | 7 |
| 46 | GEL VITRA SRL | Loc. Cernavodă, Oraş Cernavodă | Constanţa | 10.3 m | 32 |
| 47 | INTERADA-SERVICE-COM SRL | Bucureşti Sectorul 2 | Bucureşti | 9.3 m | 53 |
| 48 | ARELION ROMANIA S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 9.1 m | — |
| 49 | EXA INFRASTRUCTURE ROMANIA S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 8.8 m | 3 |
| 50 | DATA COMMUNICATIONS SERVICE S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 8.4 m | 10 |
| 51 | KAMPOS GROUP TELECOM SRL | Bucureşti Sectorul 6 | Bucureşti | 8.3 m | 16 |
| 52 | LIGHTNING NET SRL | Bucureşti Sectorul 6 | Bucureşti | 8.1 m | 11 |
| 53 | TI NET SRL | Municipiul Sibiu | Sibiu | 8.1 m | 23 |
| 54 | ILSAT NETWORK SRL | Bucureşti Sectorul 2 | Bucureşti | 7.5 m | 31 |
| 55 | INVOKER TRANS IT S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 7.5 m | 6 |
| 56 | INFINILINK S.R.L. | Municipiul Timişoara | Timiş | 7.3 m | 14 |
| 57 | AGEXIMCO SRL | Bucureşti Sectorul 4 | Bucureşti | 7.0 m | 25 |
| 58 | INTERSAT SRL | Municipiul Constanţa | Constanţa | 6.9 m | 17 |
| 59 | PAYTEL VEST S.R.L. | Municipiul Iaşi | Iaşi | 6.3 m | 5 |
| 60 | A.S.K. TIM SRL | Municipiul Timişoara | Timiş | 6.3 m | 20 |
| 61 | IRISTEL ROMANIA SRL | Bucureşti Sectorul 3 | Bucureşti | 6.1 m | 33 |
| 62 | GREEMAN SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 6.0 m | 12 |
| 63 | NETWORK INNOVATION FUTURE S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 5.9 m | 3 |
| 64 | ALPHATEL SATELIT S.R.L. | Municipiul Slatina | Olt | 5.8 m | 20 |
| 65 | INSIDE TELECOM SRL | Municipiul Cluj-Napoca | Cluj | 5.7 m | 8 |
| 66 | DARIA TELECOM SRL | Sat Albota, Comuna Albota | Argeş | 5.5 m | 14 |
| 67 | GTT Communications Netherlands B.V. Amsterdam Sucursala Bucuresti | Bucureşti Sectorul 1 | Bucureşti | 5.4 m | — |
| 68 | ENIASAN SRL | Municipiul Motru | Gorj | 4.8 m | 6 |
| 69 | TELEVOL SYSTEMS SA | Oraş Voluntari | Ilfov | 4.6 m | 15 |
| 70 | TOTAL GRUP TELECOM SRL | Bucureşti Sectorul 1 | Bucureşti | 4.6 m | 5 |
| 71 | VERIZON ROMANIA SRL | Bucureşti Sectorul 1 | Bucureşti | 4.5 m | — |
| 72 | COMUNICATII STARNET MEDIA SRL | Municipiul Cluj-Napoca | Cluj | 4.5 m | 12 |
| 73 | PAYTEL EST S.R.L. | Municipiul Iaşi | Iaşi | 4.4 m | 5 |
| 74 | DIGITAL CABLE SYSTEMS SA | Bucureşti Sectorul 2 | Bucureşti | 4.3 m | 6 |
| 75 | TRIOPT ROMANIA S.R.L. | Municipiul Cluj-Napoca | Cluj | 4.2 m | 25 |
| 76 | PAYTEL SUD S.R.L. | Municipiul Iaşi | Iaşi | 4.2 m | 5 |
| 77 | NEXT START SRL | Loc. Hârlău, Oraş Hârlău | Iaşi | 4.2 m | 17 |
| 78 | TELEFONICA 2000 SRL | Municipiul Mangalia | Constanţa | 4.2 m | 19 |
| 79 | LANSOFT DATA SRL | Sat Tunari, Comuna Tunari | Ilfov | 4.1 m | 1 |
| 80 | NICOLAE TELECOM S.R.L. | Sat Bucova, Comuna Băuţar | Caraş-Severin | 4.0 m | 19 |
| 81 | JETSTREAM RO SRL | Bucureşti Sectorul 2 | Bucureşti | 4.0 m | 0 |
| 82 | ALARMTEL SRL | Municipiul Vaslui | Vaslui | 4.0 m | 16 |
| 83 | FIBER NET SA | Bucureşti Sectorul 1 | Bucureşti | 3.9 m | 14 |
| 84 | RADTELEKOM CONNECTIONS SRL | Bucureşti Sectorul 4 | Bucureşti | 3.9 m | 12 |
| 85 | MICRO WORLD SRL | Bucureşti Sectorul 1 | Bucureşti | 3.9 m | 5 |
| 86 | TELESON SRL | Comuna Albeşti | Mureş | 3.7 m | — |
| 87 | TELECOMMUNICATIONS SPEED SRL | Sat Breazu, Comuna Rediu | Iaşi | 3.7 m | 25 |
| 88 | FNB TELECOMUNICATII S.R.L. | Oraş Voluntari | Ilfov | 3.4 m | 9 |
| 89 | MOBILIS SRL | Municipiul Iaşi | Iaşi | 3.3 m | 15 |
| 90 | VIO-NET SRL | Loc. Buziaş, Oraş Buziaş | Timiş | 3.2 m | 5 |
| 91 | CARO NETWORK SRL | Bucureşti Sectorul 2 | Bucureşti | 3.1 m | 4 |
| 92 | EXPERTNET SRL | Municipiul Olteniţa | Călăraşi | 3.1 m | 2 |
| 93 | SINICA GROUP SRL | Bucureşti Sectorul 1 | Bucureşti | 3.1 m | 11 |
| 94 | TETRA TECHNOLOGIES SOLUTIONS S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 3.0 m | 1 |
| 95 | INTELLECTRIC SRL | Bucureşti Sectorul 2 | Bucureşti | 2.9 m | 13 |
| 96 | DOTRO TELECOM SRL | Bucureşti Sectorul 1 | Bucureşti | 2.9 m | 9 |
| 97 | WAVENET SRL | Municipiul Cluj-Napoca | Cluj | 2.9 m | 8 |
| 98 | SMART NUMBER TELECOM SRL | Bucureşti Sectorul 3 | Bucureşti | 2.9 m | 2 |
| 99 | INSYTE ENGINEERING SERVICES S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 2.8 m | 10 |
| 100 | TOP FORAJ BUCOVINA S.R.L. | Oraş Cajvana | Suceava | 2.8 m | 6 |