| 1 | ELSACO ELECTRONIC SRL | Municipiul Botoşani | Botoşani | 933.5 m | 310 |
| 2 | ACVATOT SRL | Bucureşti Sectorul 2 | Bucureşti | 485.9 m | 576 |
| 3 | CIS GAZ SA | Comuna Sântana de Mureş | Mureş | 305.6 m | 212 |
| 4 | EUSKADI SRL | Municipiul Timişoara | Timiş | 257.1 m | 78 |
| 5 | AQUA SERV SRL | Municipiul Cluj-Napoca | Cluj | 226.6 m | 187 |
| 6 | ERBASU EDIL CONSTRUCT SA | Bucureşti Sectorul 6 | Bucureşti | 209.4 m | 254 |
| 7 | ERBASU TOTAL CONSTRUCT SA | Bucureşti Sectorul 6 | Bucureşti | 169.6 m | 237 |
| 8 | INSPET SA | Municipiul Ploieşti | Prahova | 169.1 m | 210 |
| 9 | INOVECO S.R.L. | Oraş Voluntari | Ilfov | 168.1 m | 215 |
| 10 | OCSA CONSTRUCTII SI INFRASTRUCTURA SRL | Bucureşti Sectorul 1 | Bucureşti | 167.0 m | 33 |
| 11 | INSTGAZ SRL | Sat Bărdeşti, Comuna Sântana de Mureş | Mureş | 157.3 m | 187 |
| 12 | I R I G C INTREPRINDEREA DE REPARATII SI INSTALATII GAZE SI CONSTRUCTII IMPEX SRL | Bucureşti Sectorul 1 | Bucureşti | 142.4 m | 243 |
| 13 | TUBULAR TEHNO SISTEM SRL | Municipiul Timişoara | Timiş | 138.3 m | 54 |
| 14 | TEOVAL & CO. SRL | Loc. Târgu Frumos, Oraş Târgu Frumos | Iaşi | 130.2 m | 181 |
| 15 | TERMOPRO EDIL SRL | Municipiul Oradea | Bihor | 108.7 m | 125 |
| 16 | GAZPET INSTAL SRL | Municipiul Ploieşti | Prahova | 92.4 m | 106 |
| 17 | TOP SCAV SRL | Municipiul Suceava | Suceava | 92.2 m | 82 |
| 18 | HIDRONIC SRL | Sat Vâlcele, Comuna Feleacu | Cluj | 81.7 m | 55 |
| 19 | LEKO CONSTRUCT SRL | Municipiul Oradea | Bihor | 80.3 m | 91 |
| 20 | PORT TRANS SRL | Sat Sălcuţa, Oraş Titu | Dâmboviţa | 80.2 m | 75 |
| 21 | AVVA CONSTRUCT TRD SRL | Bucureşti Sectorul 6 | Bucureşti | 67.5 m | 24 |
| 22 | CON BUCOVINA SA | Municipiul Suceava | Suceava | 65.3 m | 136 |
| 23 | GROUP CONSTRUCT BUCOVINA SRL | Loc. Plopeni, Oraş Salcea | Suceava | 58.0 m | 80 |
| 24 | ENERGOCONSTRUCT SRL | Sat Băcani, Comuna Băcani | Vaslui | 55.5 m | 150 |
| 25 | SZABADICS ROMANIA S.R.L. | Municipiul Cluj-Napoca | Cluj | 53.7 m | 8 |
| 26 | FLUID DEVELOPMENT SRL | Municipiul Constanţa | Constanţa | 52.6 m | 68 |
| 27 | ANTREPRIZA MONTAJ INSTALATII SA | Municipiul Baia Mare | Maramureş | 49.5 m | 154 |
| 28 | ACETI SRL | Municipiul Slatina | Olt | 49.4 m | 77 |
| 29 | AMBIENT CONSTRUCT SOLUTIONS SRL | Bucureşti Sectorul 4 | Bucureşti | 45.3 m | 47 |
| 30 | CORDEP SRL | Sat Tămăşeni, Comuna Tămăşeni | Neamţ | 44.8 m | 24 |
| 31 | RDC GENERAL CONTRACTOR SRL | Bucureşti Sectorul 2 | Bucureşti | 43.5 m | 86 |
| 32 | CONSCUT-CONSTRUCTII SRL | Bucureşti Sectorul 2 | Bucureşti | 43.3 m | 73 |
| 33 | TRYADA TRANSGLOBAL SRL | Bucureşti Sectorul 5 | Bucureşti | 39.4 m | 56 |
| 34 | RODIAN INVEST SRL | Sat Voiceşti, Comuna Voiceşti | Vâlcea | 38.7 m | — |
| 35 | MBG AMBIENT STANDARD S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 38.4 m | 35 |
| 36 | EPRS.RO SRL | Bucureşti Sectorul 3 | Bucureşti | 37.9 m | 33 |
| 37 | CIRRUS PROJECT S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 37.9 m | 5 |
| 38 | NEW GRANDE CONSTRUCT S.R.L. | Sat Creţuleasca, Comuna Ştefăneştii de Jos | Ilfov | 37.8 m | 2 |
| 39 | TALPAC SRL | Municipiul Constanţa | Constanţa | 37.7 m | 66 |
| 40 | ZOCETOP S.R.L. | Municipiul Galaţi | Galaţi | 37.4 m | 4 |
| 41 | ACVAFOR PROIECT SRL | Municipiul Piteşti | Argeş | 37.3 m | 53 |
| 42 | GIRONAP PROD SA | Municipiul Oneşti | Bacău | 33.9 m | 103 |
| 43 | OMNI CONSTRUCT LOGISTIC SRL | Municipiul Constanţa | Constanţa | 33.4 m | 37 |
| 44 | TOP GAZ SRL | Municipiul Târgu Mureş | Mureş | 33.1 m | — |
| 45 | HIDROTERM SA | Municipiul Roman | Neamţ | 32.2 m | 89 |
| 46 | MIRAL INSTAL COMPANY SRL | Bucureşti Sectorul 3 | Bucureşti | 31.6 m | 97 |
| 47 | AEDO TECHNOLOGIES S.R.L. | Oraş Măgurele | Ilfov | 29.8 m | 27 |
| 48 | ALPENSIDE SRL | Bucureşti Sectorul 5 | Bucureşti | 29.3 m | 133 |
| 49 | ANTOPREST ACTIV SRL | Bucureşti Sectorul 1 | Bucureşti | 28.8 m | 102 |
| 50 | COMESAD RO SA | Municipiul Piteşti | Argeş | 27.3 m | 127 |
| 51 | ROSATT COMPANY SRL | Loc. Negreşti-Oaş, Oraş Negreşti-Oaş | Satu Mare | 27.0 m | 38 |
| 52 | PROPLAST MEDI SRL | Sat Tuluceşti, Comuna Tuluceşti | Galaţi | 25.9 m | 16 |
| 53 | LIATI CONSTRUCT IMPEX SRL | Sat Şimian, Comuna Şimian | Mehedinţi | 24.6 m | 68 |
| 54 | CADVYLL CONST SRL | Municipiul Bacău | Bacău | 24.6 m | 66 |
| 55 | MEDCONTROL GAZ SRL | Municipiul Medgidia | Constanţa | 24.5 m | 10 |
| 56 | COMPORSA SRL | Sat Giarmata-Vii, Comuna Ghiroda | Timiş | 22.6 m | 54 |
| 57 | AQUAEDUCT SRL | Municipiul Arad | Arad | 20.8 m | 39 |
| 58 | ROCO INSTAL COMUNAL S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 20.6 m | 39 |
| 59 | KEVIEP EPITOIPARI ES KERESKEDELMI SRL DEBRECEN SUCURSALA ORADEA | Municipiul Oradea | Bihor | 20.5 m | 2 |
| 60 | ELCAS PRODIMPEX SRL | Municipiul Ploieşti | Prahova | 19.6 m | 44 |
| 61 | EDILINFRA CONSTRUCT SRL | Bucureşti Sectorul 5 | Bucureşti | 18.8 m | 28 |
| 62 | EXOTIC-PROD SRL | Municipiul Turnu Măgurele | Teleorman | 18.7 m | 8 |
| 63 | VLAD INVEST SRL | Loc. Patârlagele, Oraş Patârlagele | Buzău | 18.4 m | 19 |
| 64 | ACIM SA | Bucureşti Sectorul 3 | Bucureşti | 17.8 m | 51 |
| 65 | GREEN AGRO SERVICES SRL | Sat Filipeşti, Comuna Filipeşti | Bacău | 17.7 m | 3 |
| 66 | GEOMASTER S.R.L. | Sat Jucu de Mijloc, Comuna Jucu | Cluj | 17.7 m | 39 |
| 67 | ROMINSTA SRL | Sat Cristeşti, Comuna Cristeşti | Mureş | 17.2 m | 43 |
| 68 | KATO GROUP SRL | Sat Ploieştiori, Comuna Blejoi | Prahova | 17.0 m | 51 |
| 69 | KAUFMANN INDUSTRIES SRL | Sat Mintia, Comuna Veţel | Hunedoara | 16.9 m | 49 |
| 70 | ASPROM S.R.L. | Bucureşti Sectorul 3 | Bucureşti | 16.6 m | 23 |
| 71 | GLOBAL PORTS'S SERVICES SRL | Loc. Eforie Sud, Oraş Eforie | Constanţa | 16.4 m | 39 |
| 72 | EUROPARTENER SRL | Sat Brătuleni, Comuna Miroslava | Iaşi | 16.2 m | 44 |
| 73 | MIHOC PRIMA SRL | Sat Crăieşti, Comuna Bozieni | Neamţ | 15.6 m | 55 |
| 74 | ALEX VALDAN SRL | Sat Buceşti, Comuna Iveşti | Galaţi | 15.6 m | 39 |
| 75 | PLAST - EDILITARE SRL | Sat Dudoviceşti, Comuna Simnicu de Sus | Dolj | 15.5 m | 14 |
| 76 | ROLENA SERV SRL | Sat Bunghi, Comuna Poienari | Neamţ | 15.4 m | 13 |
| 77 | BIANDRA TRADING SA | Bucureşti Sectorul 5 | Bucureşti | 15.1 m | 21 |
| 78 | DESIGN PROIECT SRL | Municipiul Iaşi | Iaşi | 14.9 m | 11 |
| 79 | VAST IMPEX SRL | Municipiul Constanţa | Constanţa | 14.0 m | 20 |
| 80 | SGM CONTRACTOR SRL | Municipiul Galaţi | Galaţi | 13.9 m | 20 |
| 81 | CARPATIN PRESTCOM S.R.L. | Oraş Pantelimon | Ilfov | 13.5 m | 29 |
| 82 | KIPPER TRANS SRL | Comuna Podoleni | Neamţ | 13.5 m | 32 |
| 83 | PAMAVI HOUSE INSTAL S.R.L. | Sat Zimandu Nou, Comuna Zimandu Nou | Arad | 13.3 m | 28 |
| 84 | DINAMIC CONSTRUCT SRL | Municipiul Tulcea | Tulcea | 13.0 m | 46 |
| 85 | DAV CIVIL ENGINEERING SRL | Loc. Videle, Oraş Videle | Teleorman | 12.6 m | 12 |
| 86 | RAMAROM FOREST SRL | Sat Bălţeşti, Comuna Bălţeşti | Prahova | 12.5 m | 10 |
| 87 | PREST-SERV-INSTAL SRL | Municipiul Slatina | Olt | 12.3 m | 16 |
| 88 | M.G.M. CONSTRUCŢII GENERALE SRL | Municipiul Sibiu | Sibiu | 12.2 m | 12 |
| 89 | ISOTECH SRL | Municipiul Mediaş | Sibiu | 11.4 m | 17 |
| 90 | LAZETI SRL | Municipiul Timişoara | Timiş | 11.3 m | 30 |
| 91 | AQUA GETICA S.R.L. | Sat Ploieştiori, Comuna Blejoi | Prahova | 11.2 m | 47 |
| 92 | MEDIR SRL | Municipiul Călăraşi | Călăraşi | 11.2 m | 10 |
| 93 | PREPITECH SRL | Municipiul Sibiu | Sibiu | 11.0 m | 25 |
| 94 | AQUA - MONTAJ SRL | Bucureşti Sectorul 6 | Bucureşti | 10.8 m | 10 |
| 95 | GRUP 4 INSTALATII SA | Municipiul Cluj-Napoca | Cluj | 10.5 m | 48 |
| 96 | VENTICOSIN S.R.L. | Municipiul Brăila | Brăila | 10.2 m | 13 |
| 97 | FEROTERRA SRL | Municipiul Mediaş | Sibiu | 10.1 m | 25 |
| 98 | TRANS AR TRUST INSTALAŢII S.R.L. | Municipiul Arad | Arad | 10.1 m | 24 |
| 99 | INSTALATII PELICANUL SRL | Municipiul Lugoj | Timiş | 10.0 m | 11 |
| 100 | ANTARES TECH CONSULTING S.R.L. | Sat Lipia, Comuna Merei | Buzău | 9.8 m | 4 |