| 1 | MCE GEBAEUDETECHNIK ROMANIA SRL | Bucureşti Sectorul 1 | Bucureşti | 51.0 mil | 146 |
| 2 | K.T.S. CONSTRUCT SRL | Bucureşti Sectorul 5 | Bucureşti | 6.9 mil | 24 |
| 3 | FRIG TOTAL GROUP SRL | Bucureşti Sectorul 1 | Bucureşti | 2.7 mil | 3 |
| 4 | SCHWANK SRL | Municipiul Piatra Neamţ | Neamţ | 2.4 mil | 1 |
| 5 | NIV BEST COM SRL | Bucureşti Sectorul 4 | Bucureşti | 2.2 mil | 15 |
| 6 | INSTAL DIM SRL | Sat Sfântu Ilie, Comuna Şcheia | Suceava | 1.8 mil | 7 |
| 7 | MASTER HEAT CONSTRUCT SRL | Sat Corbeanca, Comuna Corbeanca | Ilfov | 1.7 mil | 4 |
| 8 | TEAW SISTEM SRL | Loc. Comarnic, Oraş Comarnic | Prahova | 1.5 mil | 4 |
| 9 | VEST KLIMA INSTAL SRL | Bucureşti Sectorul 5 | Bucureşti | 1.3 mil | 1 |
| 10 | CLIMALUX TERM 2005 SRL | Sat Pădurenii, Comuna Tisău | Buzău | 1.2 mil | 2 |
| 11 | INSTALFRIG SISTEM SRL | Sat Izvoru Dulce, Comuna Merei | Buzău | 1.1 mil | 3 |
| 12 | MONTEXTERM SRL | Bucureşti Sectorul 2 | Bucureşti | 1.1 mil | 0 |
| 13 | CLIMATEC SRL | Municipiul Piatra Neamţ | Neamţ | 1.1 mil | 1 |
| 14 | DUMI FRIGOSERV SRL | Sat Pleaşa, Comuna Bucov | Prahova | 1.0 mil | 1 |
| 15 | M.T. INSTAL CONSTRUCT SRL | Sat Căldăraru, Comuna Cernica | Ilfov | 921.1 mii | 3 |
| 16 | M C CONPREST SRL | Sat Poenari, Comuna Ulmi | Giurgiu | 752.4 mii | 6 |
| 17 | S.V. DIVERS INSTAL SERVICE SRL | Municipiul Piteşti | Argeş | 548.5 mii | 2 |
| 18 | LIV INSTAL SRL | Bucureşti Sectorul 1 | Bucureşti | 533.1 mii | 3 |
| 19 | INSTAL D.G. SRL | Municipiul Braşov | Braşov | 483.0 mii | 1 |
| 20 | CLEAN INSTAL SERV SRL | Municipiul Piteşti | Argeş | 337.4 mii | 1 |
| 21 | TERMOSTAL SERV SRL | Municipiul Craiova | Dolj | 328.4 mii | 2 |
| 22 | INSTEHN SRL | Municipiul Timişoara | Timiş | 280.9 mii | 1 |
| 23 | ABC FRIGO SRL | Municipiul Drobeta-Turnu Severin | Mehedinţi | 265.8 mii | 1 |
| 24 | METCONSTRUCT SRL | Municipiul Brăila | Brăila | 242.2 mii | 3 |
| 25 | CRISALIA SRL | Municipiul Timişoara | Timiş | 229.5 mii | 1 |
| 26 | OLTINSTAL SRL | Municipiul Roman | Neamţ | 226.3 mii | 0 |
| 27 | BEST INSTAL SRL | Municipiul Bistriţa | Bistriţa-Năsăud | 200.8 mii | 1 |
| 28 | TERMO MAX SRL | Loc. Ovidiu, Oraş Ovidiu | Constanţa | 199.6 mii | 1 |
| 29 | EDIFICII ISPACONS SRL | Comuna Izvoarele | Olt | 187.6 mii | 0 |
| 30 | CORAL INSTALL SRL | Municipiul Timişoara | Timiş | 186.8 mii | 1 |
| 31 | REBEA IMPORT EXPORT SRL | Municipiul Turda | Cluj | 184.1 mii | 0 |
| 32 | SPOOTT - INSTAL SRL | Bucureşti Sectorul 4 | Bucureşti | 179.2 mii | 2 |
| 33 | FRIGOTERM SERV SRL | Municipiul Călăraşi | Călăraşi | 175.2 mii | 0 |
| 34 | PREMIUM CONSTRUCT SRL | Municipiul Cluj-Napoca | Cluj | 150.7 mii | 3 |
| 35 | MOMENT INSTAL SRL | Municipiul Timişoara | Timiş | 144.6 mii | 0 |
| 36 | GENERAL TERMO INSTAL SRL | Bucureşti Sectorul 4 | Bucureşti | 144.6 mii | 0 |
| 37 | CRISTAL CLIMA SRL | Bucureşti Sectorul 1 | Bucureşti | 143.8 mii | 2 |
| 38 | NICORON INSTAL SRL | Sat Păuneşti, Comuna Păuneşti | Vrancea | 142.1 mii | 1 |
| 39 | VILCOINSTAL SRL | Municipiul Târgu Jiu | Gorj | 141.6 mii | 2 |
| 40 | SOVAS SRL | Loc. Cisnădie, Oraş Cisnădie | Sibiu | 139.0 mii | 1 |
| 41 | FIMA SRL | Municipiul Piteşti | Argeş | 131.9 mii | 0 |
| 42 | FININSTAL SRL | Municipiul Cluj-Napoca | Cluj | 114.4 mii | 1 |
| 43 | BLAZON PROIECT SRL | ***localitatea negasita*** | Prahova | 113.1 mii | 1 |
| 44 | VIVA SRL | Oraş Pantelimon | Ilfov | 104.3 mii | 1 |
| 45 | NYD COM PROD SRL | Comuna Domneşti | Ilfov | 92.4 mii | 1 |
| 46 | HARRER INVEST SRL | Municipiul Cluj-Napoca | Cluj | 87.6 mii | 1 |
| 47 | TERMOCOS SRL | Municipiul Brăila | Brăila | 86.2 mii | 1 |
| 48 | UMI INTERNATIONAL SRL | Municipiul Turda | Cluj | 83.4 mii | 1 |
| 49 | SANO CLIMAT SRL | Sat Adunaţi, Comuna Adunaţi | Prahova | 80.0 mii | 1 |
| 50 | GAMA LUX SRL | Municipiul Cluj-Napoca | Cluj | 77.6 mii | 2 |
| 51 | EUROINSTAL SRL | Municipiul Galaţi | Galaţi | 77.1 mii | 0 |
| 52 | ETIC IMOBILIARE SRL | Bucureşti Sectorul 3 | Bucureşti | 74.7 mii | 1 |
| 53 | FLORAD INOX SRL | Municipiul Cluj-Napoca | Cluj | 67.0 mii | 1 |
| 54 | ELECTROCASNICA SOCIETATE COOPERATIVĂ MEŞTEŞUGĂREASCĂ | Municipiul Constanţa | Constanţa | 58.6 mii | 1 |
| 55 | ASERA TERMOINSTAL SRL | Sat Cornu de Jos, Comuna Cornu | Prahova | 58.2 mii | 1 |
| 56 | POWER AMBIENT SRL | Loc. Amara, Oraş Amara | Ialomiţa | 57.6 mii | 0 |
| 57 | TERMINSTAL DESIGN SRL | Municipiul Bacău | Bacău | 43.6 mii | 0 |
| 58 | INSTAL ION SRL | Municipiul Slatina | Olt | 39.7 mii | 1 |
| 59 | CRIST.CO.CONSTRUCT SRL | Bucureşti Sectorul 4 | Bucureşti | 25.5 mii | 0 |
| 60 | DMC INSTAL & SERVICES SRL | Municipiul Piteşti | Argeş | 23.2 mii | 0 |
| 61 | VESRA SRL | Municipiul Iaşi | Iaşi | 23.2 mii | 0 |
| 62 | MIRNUS SRL | Municipiul Oradea | Bihor | 22.5 mii | 1 |
| 63 | PRESTIGE SERVICE 2002 SRL | Bucureşti Sectorul 1 | Bucureşti | 21.9 mii | 1 |
| 64 | ANTONI MASTER CALOR SRL | Oraş Ştefăneşti | Argeş | 20.0 mii | 0 |
| 65 | EDA INSTAL TERM SRL | Municipiul Medgidia | Constanţa | 16.8 mii | 0 |
| 66 | ENKO IMPEX SRL | Municipiul Buzău | Buzău | 15.1 mii | 0 |
| 67 | FRONTAL TRADING SRL | Bucureşti Sectorul 2 | Bucureşti | 15.0 mii | 0 |
| 68 | INTERCOM LOGISTIC SRL | Municipiul Ploieşti | Prahova | 14.5 mii | 0 |
| 69 | PROCUST PRESTSERV SRL | Municipiul Turda | Cluj | 10.8 mii | 0 |
| 70 | OLTING SRL | Sat Cetariu, Comuna Cetariu | Bihor | 7.7 mii | 1 |
| 71 | MARYINSTAL SERVICE SRL | Municipiul Ploieşti | Prahova | 7.0 mii | 0 |
| 72 | AUREL CONSTRUCT COM SRL | Bucureşti Sectorul 3 | Bucureşti | 6.6 mii | 0 |
| 73 | CLIMA CONFORT SRL | Bucureşti Sectorul 2 | Bucureşti | 4.4 mii | 0 |
| 74 | DUM-CO PROD 2005 SRL | Bucureşti Sectorul 3 | Bucureşti | 3.0 mii | 0 |
| 75 | FORMIAL SRL | Municipiul Roşiori de Vede | Teleorman | 2.0 mii | 0 |
| 76 | TOP OPTIM INSTAL SRL | Bucureşti Sectorul 5 | Bucureşti | 1.3 mii | 0 |
| 77 | AMI INSTAL CONSTRUCT SRL | Bucureşti Sectorul 5 | Bucureşti | 847 | 0 |
| 78 | A.M.I. CLIMA SRL | Bucureşti Sectorul 3 | Bucureşti | 0 | — |
| 79 | AXA INSTAL CONSTRUCT SRL | Bucureşti Sectorul 3 | Bucureşti | 0 | 0 |
| 80 | RAMSTAL CONSTRUCT EXCEL SRL | Municipiul Piteşti | Argeş | 0 | 0 |
| 81 | TECHNIKA CLEANROOMS CONSTRUCT SRL | Bucureşti Sectorul 2 | Bucureşti | 0 | 1 |
| 82 | RENTATERM SRL | Loc. Târgu Frumos, Oraş Târgu Frumos | Iaşi | 0 | 0 |
| 83 | WAY 4 GRUP SRL | Bucureşti Sectorul 6 | Bucureşti | 0 | — |
| 84 | DANOMAR CONTRANS SRL | Loc. Bragadiru, Oraş Bragadiru | Ilfov | 0 | — |
