| 1 | RENAULT TECHNOLOGIE ROUMANIE S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 1,1 mld. | 1.572 |
| 2 | ENEVO GROUP SRL | Bucureşti Sectorul 2 | Bucureşti | 699,1 mil. | 194 |
| 3 | EXIMPROD ENGINEERING S.A. | Municipiul Buzău | Buzău | 305,9 mil. | 105 |
| 4 | ADREM ENGINEERING S.A. | Bucureşti Sectorul 1 | Bucureşti | 249,2 mil. | 76 |
| 5 | WEATHERFORD ATLAS GIP SA | Municipiul Ploieşti | Prahova | 229,8 mil. | 258 |
| 6 | ADREM INVEST SRL | Oraş Otopeni | Ilfov | 229,0 mil. | 586 |
| 7 | BERTRANDT ENGINEERING TECHNOLOGIES ROMANIA SRL | Municipiul Sibiu | Sibiu | 190,8 mil. | 957 |
| 8 | EMERSON PROCESS MANAGEMENT ROMANIA SRL | Bucureşti Sectorul 2 | Bucureşti | 187,0 mil. | 62 |
| 9 | ALEWIJNSE MARINE GALAŢI SOCIETATE PE ACŢIUNI | Municipiul Galaţi | Galaţi | 181,6 mil. | 450 |
| 10 | GAUSS SRL | Municipiul Timişoara | Timiş | 181,5 mil. | 192 |
| 11 | TECHNOSYSTEMS DELIVER SRL | Bucureşti Sectorul 6 | Bucureşti | 178,4 mil. | 38 |
| 12 | AMICII BUILDING SRL | Sat Tiha Bârgăului, Comuna Tiha Bârgăului | Bistriţa-Năsăud | 164,0 mil. | 139 |
| 13 | PROSPECTIUNI SA | Bucureşti Sectorul 1 | Bucureşti | 158,3 mil. | 379 |
| 14 | PROCESS ENGINEERING SRL | Bucureşti Sectorul 2 | Bucureşti | 156,9 mil. | 127 |
| 15 | PROACTIV SRL | Loc. Călan, Oraş Călan | Hunedoara | 155,2 mil. | 230 |
| 16 | GEA REFRIGERATION ROMANIA SRL | Municipiul Cluj-Napoca | Cluj | 148,3 mil. | 58 |
| 17 | CLEAN ROOM CONSULTING SRL | Bucureşti Sectorul 5 | Bucureşti | 147,0 mil. | 98 |
| 18 | KROMBERG & SCHUBERT ROMANIA TI SRL | Municipiul Timişoara | Timiş | 129,1 mil. | 585 |
| 19 | QUARTZ MATRIX SRL | Municipiul Iaşi | Iaşi | 126,1 mil. | 94 |
| 20 | VALIANT TMS RO SRL | Municipiul Oradea | Bihor | 122,1 mil. | 188 |
| 21 | LEVIATAN DESIGN SRL | Bucureşti Sectorul 3 | Bucureşti | 119,7 mil. | 92 |
| 22 | ELECTROVALCEA SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 117,6 mil. | 190 |
| 23 | CONCRETE & DESIGN SOLUTIONS SRL | Bucureşti Sectorul 1 | Bucureşti | 110,8 mil. | 137 |
| 24 | ARCADIS EXCELLENCE CENTER ROMANIA S.A. | Municipiul Iaşi | Iaşi | 110,4 mil. | 509 |
| 25 | AKKODIS ROMANIA S.R.L. | Bucureşti Sectorul 5 | Bucureşti | 109,8 mil. | 548 |
| 26 | URS ENGINEERS & CONSTRUCTORS ROMANIA SRL | Bucureşti Sectorul 2 | Bucureşti | 101,1 mil. | 380 |
| 27 | GEOTOP SRL | Municipiul Slatina | Olt | 100,9 mil. | 34 |
| 28 | TECNIC CONSULTING ENGINEERING ROMANIA SRL | Bucureşti Sectorul 1 | Bucureşti | 95,9 mil. | 83 |
| 29 | SAIDEL ENGINEERING S.A. | Bucureşti Sectorul 1 | Bucureşti | 93,2 mil. | 105 |
| 30 | TRIDENT SERVICII SI MENTENANTA S.A. | Bucureşti Sectorul 4 | Bucureşti | 92,2 mil. | 103 |
| 31 | TECHNYX EURO SERVICES SRL | Municipiul Braşov | Braşov | 91,0 mil. | 424 |
| 32 | MICROCHIP TECHNOLOGY SRL | Bucureşti Sectorul 6 | Bucureşti | 86,0 mil. | 203 |
| 33 | ANTISEL RO SRL | Bucureşti Sectorul 3 | Bucureşti | 83,2 mil. | 40 |
| 34 | ARRK RESEARCH & DEVELOPMENT SRL | Municipiul Cluj-Napoca | Cluj | 82,1 mil. | 388 |
| 35 | TRANSGEX SA | Municipiul Oradea | Bihor | 80,3 mil. | 190 |
| 36 | GOTRACAM SRL | Bucureşti Sectorul 2 | Bucureşti | 78,3 mil. | 13 |
| 37 | CANADIAN NUCLEAR PARTNERS S.A. | Bucureşti Sectorul 2 | Bucureşti | 77,8 mil. | 12 |
| 38 | BLUESPACE TECHNOLOGY S.A. | Oraş Bragadiru | Ilfov | 75,7 mil. | 136 |
| 39 | MARINE ENGINEERING SRL | Municipiul Galaţi | Galaţi | 75,7 mil. | 195 |
| 40 | RAMBOLL SOUTH EAST EUROPE S.R.L. | Municipiul Târgovişte | Dâmboviţa | 75,6 mil. | 121 |
| 41 | RAPTRONIC PROCESS ENGINEERING SRL | Municipiul Braşov | Braşov | 75,2 mil. | 97 |
| 42 | ALTEN DELIVERY CENTER EASTERN EUROPE S.R.L. | Municipiul Iaşi | Iaşi | 74,8 mil. | 336 |
| 43 | SELLM SRL | Municipiul Timişoara | Timiş | 74,2 mil. | 9 |
| 44 | ROMAIR CONSULTING SRL | Bucureşti Sectorul 1 | Bucureşti | 73,6 mil. | 101 |
| 45 | TPF INGINERIE S.R.L. | Bucureşti Sectorul 5 | Bucureşti | 65,2 mil. | 112 |
| 46 | ENSYS RENEWABLE SOLUTIONS S.A. | Municipiul Oradea | Bihor | 64,3 mil. | 95 |
| 47 | ICEPRONAV ENGINEERING SRL | Municipiul Galaţi | Galaţi | 63,6 mil. | 230 |
| 48 | LUDAN ENGINEERING SRL | Bucureşti Sectorul 5 | Bucureşti | 60,7 mil. | 113 |
| 49 | VARD ENGINEERING CONSTANȚA SRL | Municipiul Constanţa | Constanţa | 58,9 mil. | 200 |
| 50 | CONSITRANS SRL | Bucureşti Sectorul 1 | Bucureşti | 58,5 mil. | 194 |
| 51 | DATCOMP SRL | Sat Chişoda, Comuna Giroc | Timiş | 58,0 mil. | 43 |
| 52 | TRACTEBEL ENGINEERING SA | Bucureşti Sectorul 1 | Bucureşti | 57,7 mil. | 135 |
| 53 | SFC CLEAN ENERGY S.R.L. | Municipiul Cluj-Napoca | Cluj | 57,0 mil. | 34 |
| 54 | ELSATERM CONSTRUCT SRL | Municipiul Cluj-Napoca | Cluj | 56,2 mil. | 3 |
| 55 | LE BON PROJET SRL | Municipiul Braşov | Braşov | 55,7 mil. | 40 |
| 56 | EGIS ROMANIA SA | Bucureşti Sectorul 1 | Bucureşti | 54,6 mil. | 113 |
| 57 | TECHNO ENGINEERING & ASSOCIATES SRL | Bucureşti Sectorul 4 | Bucureşti | 54,6 mil. | 66 |
| 58 | I.S.P.C.F. SA | Bucureşti Sectorul 1 | Bucureşti | 54,2 mil. | 115 |
| 59 | FEV ECE AUTOMOTIVE SRL | Bucureşti Sectorul 4 | Bucureşti | 53,1 mil. | 137 |
| 60 | SWARCO TRAFFIC ROMANIA SRL | Bucureşti Sectorul 1 | Bucureşti | 52,3 mil. | 34 |
| 61 | BAICONS IMPEX SRL | Bucureşti Sectorul 2 | Bucureşti | 52,1 mil. | 75 |
| 62 | PENTANOVA AUTOMATIZĂRI SRL | Municipiul Oradea | Bihor | 51,8 mil. | 32 |
| 63 | SEGULA TECHNOLOGIES ROMANIA SRL | Bucureşti Sectorul 4 | Bucureşti | 50,8 mil. | 285 |
| 64 | GREEN DESIGN AUTOMATION SRL | Bucureşti Sectorul 6 | Bucureşti | 50,8 mil. | 35 |
| 65 | ILF CONSULTING ENGINEERS ROMANIA S.R.L. | Municipiul Ploieşti | Prahova | 50,6 mil. | 71 |
| 66 | SABARO GC S.R.L. | Municipiul Timişoara | Timiş | 49,8 mil. | 3 |
| 67 | SERVELECT SRL | Municipiul Cluj-Napoca | Cluj | 48,7 mil. | 54 |
| 68 | DURAMAT TACNET S.R.L. | Bucureşti Sectorul 5 | Bucureşti | 48,6 mil. | 6 |
| 69 | IRD Engineering SRL Roma Sucursala Bucuresti | Bucureşti Sectorul 1 | Bucureşti | 46,3 mil. | 91 |
| 70 | RAVLUX PROIECT SRL | Sat Mihai Viteazu, Comuna Mihai Viteazu | Cluj | 46,1 mil. | 3 |
| 71 | LAURA UNLIMITED SRL | Sat Găiseni, Comuna Găiseni | Giurgiu | 45,3 mil. | 14 |
| 72 | ROCONSULT TECH SRL | Municipiul Ploieşti | Prahova | 43,3 mil. | 53 |
| 73 | KINECTRICS NUCLEAR ROMANIA S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 43,2 mil. | 33 |
| 74 | F & R WORLDWIDE SRL | Bucureşti Sectorul 2 | Bucureşti | 42,6 mil. | 82 |
| 75 | OPTIM PROJECT MANAGEMENT SRL | Bucureşti Sectorul 1 | Bucureşti | 41,7 mil. | 47 |
| 76 | COMPANIA MUNICIPALĂ ENERGETICA SERVICII BUCUREŞTI S.A. | Bucureşti Sectorul 3 | Bucureşti | 41,7 mil. | 225 |
| 77 | ZOORK S.R.L. | Sat Tomeşti, Comuna Tomeşti | Iaşi | 41,6 mil. | 90 |
| 78 | ICA PROBUILT S.R.L. | Sat Hărman, Comuna Hărman | Braşov | 40,5 mil. | 51 |
| 79 | YÜKSEL PROJE ANONIM SIRKETI ANKARA - SUCURSALA BUCURESTI | Bucureşti Sectorul 1 | Bucureşti | 39,2 mil. | 16 |
| 80 | ENERGOICE SRL | Sat Săvineşti, Comuna Săvineşti | Neamţ | 38,9 mil. | 48 |
| 81 | DASSTEC B2B SRL | Sat Căţelu, Comuna Glina | Ilfov | 38,2 mil. | 44 |
| 82 | DB ENGINEERING & CONSULTING GMBH BERLIN GERMANIA - SUCURSALA BUCURESTI ROMANIA | Bucureşti Sectorul 2 | Bucureşti | 37,0 mil. | 149 |
| 83 | MONSSON OPERATION SRL | Municipiul Constanţa | Constanţa | 36,8 mil. | 99 |
| 84 | GMV INNOVATING SOLUTIONS SRL | Bucureşti Sectorul 1 | Bucureşti | 36,8 mil. | 61 |
| 85 | IPIP SA | Municipiul Ploieşti | Prahova | 36,7 mil. | 130 |
| 86 | GDT CONCRET SRL | Municipiul Bistriţa | Bistriţa-Năsăud | 36,7 mil. | 9 |
| 87 | JDA CONSULT SRL | Municipiul Timişoara | Timiş | 35,9 mil. | 11 |
| 88 | ALSECA ENGINEERING SA | Loc. Buftea, Oraş Buftea | Ilfov | 35,1 mil. | 90 |
| 89 | MEGA MÜHENDISLIK MÜȘAVIRLIK ANONIM SIRKETI ANKARA SUCURSALA BUCURESTI | Bucureşti Sectorul 3 | Bucureşti | 35,1 mil. | 23 |
| 90 | SEPTEMBRIE CONSULTING SRL | Bucureşti Sectorul 5 | Bucureşti | 35,0 mil. | 38 |
| 91 | GPI BUILDING LOGISTIC SRL | Bucureşti Sectorul 1 | Bucureşti | 34,8 mil. | 35 |
| 92 | SEIV INSTAL SRL | Municipiul Târgu Mureş | Mureş | 34,6 mil. | 43 |
| 93 | POPP & ASOCIATII SRL | Bucureşti Sectorul 3 | Bucureşti | 34,0 mil. | 62 |
| 94 | PRIMUL MERIDIAN SRL | Municipiul Slatina | Olt | 34,0 mil. | 32 |
| 95 | DREAMS RIVIERA SRL | Municipiul Galaţi | Galaţi | 33,5 mil. | 9 |
| 96 | INTO SRL | Sat Războieni, Comuna Ion Neculce | Iaşi | 33,4 mil. | 38 |
| 97 | ELEMENTAL ENERGIES S.R.L. | Bucureşti Sectorul 2 | Bucureşti | 32,8 mil. | 5 |
| 98 | GFS ENGINEERING & TECHNICAL CONSULTING S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 32,7 mil. | 6 |
| 99 | CORNEL & CORNEL TOPOEXIM SRL | Bucureşti Sectorul 2 | Bucureşti | 32,7 mil. | 105 |
| 100 | GEODATA SERVICES S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 31,7 mil. | 28 |