| 1 | BLACK SEA SUPPLIERS SRL | Municipiul Constanţa | Constanţa | 658 |
| 2 | XAVITEL SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 296 |
| 3 | AMBIENT PRO CONCEPT S.R.L. | Municipiul Sibiu | Sibiu | 296 |
| 4 | HIGH-TECH CLIMA SRL | Bucureşti Sectorul 3 | Bucureşti | 233 |
| 5 | PYRONOVA IS SRL | Sat Şag, Comuna Şag | Timiş | 210 |
| 6 | TECHNOVA INVEST SRL | Municipiul Oradea | Bihor | 167 |
| 7 | TERRA CLEAN SERVICE SRL | Sat Malcoci, Comuna Nufăru | Tulcea | 135 |
| 8 | URBIOLED SRL | Oraş Bragadiru | Ilfov | 110 |
| 9 | ADEMCO SUPPLY S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 77 |
| 10 | SOFIMAR IMOBILIARE SRL | Sat Tămăşeni, Comuna Tămăşeni | Neamţ | 74 |
| 11 | THE PROVIDER FM S.R.L. | Sat Baloteşti, Comuna Baloteşti | Ilfov | 71 |
| 12 | EUROPAPIER ROMANIA SRL | Sat Dragomireşti-Deal, Comuna Dragomireşti-Vale | Ilfov | 52 |
| 13 | ENERGIC FAMILY S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 47 |
| 14 | R.N.B. INSTAL-CONSTRUCT SRL | Oraş Popeşti Leordeni | Ilfov | 44 |
| 15 | LAREX-IR DECOR S.R.L. | Oraş Bragadiru | Ilfov | 43 |
| 16 | MARAL SRL | Loc. Popeşti Leordeni, Oraş Popeşti Leordeni | Ilfov | 39 |
| 17 | BADGAZ SRL | Municipiul Ploieşti | Prahova | 38 |
| 18 | TRUST EURO THERM SRL | Sat Gîrcina, Comuna Gîrcina | Neamţ | 37 |
| 19 | FRESH AIR SERVICE S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 37 |
| 20 | CMV TERMOINSTAL SRL | Municipiul Craiova | Dolj | 36 |
| 21 | PETROTERM INSTAL SRL | Municipiul Medgidia | Constanţa | 31 |
| 22 | ROBERT-SIM SRL | Municipiul Iaşi | Iaşi | 29 |
| 23 | INSTAL-DAC SRL | Municipiul Braşov | Braşov | 29 |
| 24 | HTI INTERNATIONAL ROMANIA SRL | Municipiul Braşov | Braşov | 29 |
| 25 | INSTALDI SUPORT S.R.L. | Municipiul Târgu Mureş | Mureş | 29 |
| 26 | CAPITAL SRL | Municipiul Craiova | Dolj | 28 |
| 27 | ELECTRIC VALCOR SRL | Municipiul Craiova | Dolj | 28 |
| 28 | SILDOR PROD SRL | Municipiul Arad | Arad | 27 |
| 29 | GRUP SERV SRL | Municipiul Focşani | Vrancea | 26 |
| 30 | MULTIGALAXY SRL | Bucureşti Sectorul 2 | Bucureşti | 25 |
| 31 | MDT TECHNIC DEVELOPMENT S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 25 |
| 32 | CALOREX INTERNATIONAL TRADE SRL | Bucureşti Sectorul 6 | Bucureşti | 24 |
| 33 | INALDA SRL | Municipiul Piteşti | Argeş | 24 |
| 34 | HAPPY OWL D.R.L S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 24 |
| 35 | SEVATI IMPEX SRL | Bucureşti Sectorul 1 | Bucureşti | 23 |
| 36 | CORECT 2000 SRL | Bucureşti Sectorul 3 | Bucureşti | 23 |
| 37 | GB-INSTAL HVAC SRL | Bucureşti Sectorul 2 | Bucureşti | 23 |
| 38 | INSTAL CARPATICA SRL | Municipiul Braşov | Braşov | 22 |
| 39 | MERY & NICK 28 SRL | Municipiul Craiova | Dolj | 22 |
| 40 | MIRAD INSTAL-GAZ S.R.L. | Municipiul Ploieşti | Prahova | 22 |
| 41 | BAVARIA SERVICE SRL | Municipiul Constanţa | Constanţa | 21 |
| 42 | AMBIENTAL IDEAL CONSTRUCT SRL | Loc. Mihăileşti, Oraş Mihăileşti | Giurgiu | 21 |
| 43 | GHIROS INSTAL SRL | Sat Brazii de Jos, Comuna Brazi | Prahova | 21 |
| 44 | KERATO INSTAL SRL | Municipiul Cluj-Napoca | Cluj | 21 |
| 45 | SAFIR S.M. SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 20 |
| 46 | MISO SRL | Municipiul Craiova | Dolj | 20 |
| 47 | FONICAR SRL | Sat Dobric, Comuna Căianu Mic | Bistriţa-Năsăud | 20 |
| 48 | CRISMAIR TRADE SRL | Municipiul Oradea | Bihor | 20 |
| 49 | ALEYAN CLIM S.R.L. | Sat Runcu, Comuna Runcu | Vâlcea | 20 |
| 50 | EN GHEDI DISTRIBUTION SRL | Loc. Năsăud, Oraş Năsăud | Bistriţa-Năsăud | 20 |
| 51 | DAFTERM & CO S.R.L. | Municipiul Iaşi | Iaşi | 20 |
| 52 | GEO-STING INSTAL-CONSTRUCT S.R.L. | Municipiul Târgovişte | Dâmboviţa | 20 |
| 53 | MSD INSTALCONSTRUCT S.R.L. | Sat Sîngeorgiu de Mureş, Comuna Sîngeorgiu de Mureş | Mureş | 20 |
| 54 | DAMINO PRODCOM SRL | Oraş Bragadiru | Ilfov | 19 |
| 55 | INSTAL CASA SRL | Sat Sântandrei, Comuna Sântandrei | Bihor | 19 |
| 56 | MEGAPREX INSTAL SRL | Municipiul Bacău | Bacău | 19 |
| 57 | TECE ROMÂNIA S.R.L. | Sat Chiajna, Comuna Chiajna | Ilfov | 19 |
| 58 | SISTEMA FLOOR HEATING SRL | Municipiul Timişoara | Timiş | 19 |
| 59 | NEO GAS INSTAL S.R.L. | Sat Coada Izvorului, Comuna Măneşti | Prahova | 19 |
| 60 | RTC`S SOLUTION S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 19 |
| 61 | CCT INSTAL CONSULT S.R.L. | Sat Şelimbăr, Comuna Şelimbăr | Sibiu | 19 |
| 62 | ZEN REVOLUTIONARY S.R.L. | Loc. Bragadiru, Oraş Bragadiru | Ilfov | 19 |
| 63 | CALOR SRL | Bucureşti Sectorul 5 | Bucureşti | 18 |
| 64 | C&D THERM INSTALATII SRL | Municipiul Bacău | Bacău | 18 |
| 65 | NEW MAP "CASA MAGICA" SRL | Bucureşti Sectorul 2 | Bucureşti | 18 |
| 66 | CSV MEDA SRL | Municipiul Târgovişte | Dâmboviţa | 18 |
| 67 | TERMO - CALOR INSTAL S.R.L. | Municipiul Suceava | Suceava | 18 |
| 68 | WORK SOLUTION S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 18 |
| 69 | SELEN SERV SRL | Loc. Mizil, Oraş Mizil | Prahova | 17 |
| 70 | BELLE MOON SRL | Bucureşti Sectorul 1 | Bucureşti | 17 |
| 71 | SANECO SOLUTIONS SRL | Bucureşti Sectorul 4 | Bucureşti | 17 |
| 72 | ONE CONCEPT DISTRIBUTION S.R.L. | Oraş Chitila | Ilfov | 17 |
| 73 | MATTEO&PAC CONSULT S.R.L. | Sat Clinceni, Comuna Clinceni | Ilfov | 17 |
| 74 | BAVARIA SRL | Municipiul Constanţa | Constanţa | 16 |
| 75 | ROMCET GRUP SA | Bucureşti Sectorul 5 | Bucureşti | 16 |
| 76 | INSTALDI SRL | Municipiul Târgu Mureş | Mureş | 16 |
| 77 | SIMNAV SRL | Municipiul Galaţi | Galaţi | 16 |
| 78 | MATRIX ACTIVITY GRUP SRL | Sat Afumaţi, Comuna Afumaţi | Ilfov | 16 |
| 79 | GUSILV INSTAL SRL | Municipiul Bistriţa | Bistriţa-Năsăud | 16 |
| 80 | SZABOEK SRL | Municipiul Sfântu Gheorghe | Covasna | 15 |
| 81 | NIC-IMPEX-95 SRL | Bucureşti Sectorul 1 | Bucureşti | 15 |
| 82 | ARMILLARIA COM SRL | Municipiul Sighişoara | Mureş | 15 |
| 83 | S.A.B. SISTEM SRL | Bucureşti Sectorul 6 | Bucureşti | 15 |
| 84 | CENTROTERM SRL | Loc. Petrila, Oraş Petrila | Hunedoara | 15 |
| 85 | HOVAL SRL | Oraş Voluntari | Ilfov | 15 |
| 86 | CLIMA STUDIO SRL | Sat Dragomireşti-Deal, Comuna Dragomireşti-Vale | Ilfov | 15 |
| 87 | ABC CONTROL SRL | Bucureşti Sectorul 3 | Bucureşti | 15 |
| 88 | TERMOTEMP SERVICE SRL | Bucureşti Sectorul 4 | Bucureşti | 15 |
| 89 | TEHNICREATIV GRAFIC INSTAL S.R.L. | Municipiul Hunedoara | Hunedoara | 15 |
| 90 | MH AIR SYSTEMS S.R.L. | Sat Băbeni-Olteţu, Comuna Diculeşti | Vâlcea | 15 |
| 91 | UCROM-94 IMPEX SRL | Bucureşti Sectorul 6 | Bucureşti | 14 |
| 92 | HOME SYSTEMS SRL | Municipiul Brăila | Brăila | 14 |
| 93 | EUROLIGHT SRL | Municipiul Reşiţa | Caraş-Severin | 14 |
| 94 | VIOPINT SERV SRL | Municipiul Galaţi | Galaţi | 14 |
| 95 | UNIQIT SYSTEM S.R.L. | Municipiul Suceava | Suceava | 14 |
| 96 | HORVATH SERVICE SRL | Municipiul Sfântu Gheorghe | Covasna | 13 |
| 97 | DYROT IMPEX SRL | Municipiul Ploieşti | Prahova | 13 |
| 98 | LIM IMPEX SRL | Municipiul Buzău | Buzău | 13 |
| 99 | AS-ROMPRIM SRL | Municipiul Timişoara | Timiş | 13 |
| 100 | KESSEL ROMANIA SRL | Bucureşti Sectorul 3 | Bucureşti | 13 |
