| 1 | PET COMMUNICATIONS SRL | Municipiul Constanţa | Constanţa | 20.8 mil | 112 |
| 2 | ITALOTEHNICA T&D IMPEX SRL | Bucureşti Sectorul 6 | Bucureşti | 15.3 mil | 17 |
| 3 | ELBIM GRUPSERV SRL | Municipiul Oneşti | Bacău | 10.4 mil | 51 |
| 4 | UT4FB CONTROL SRL | Sat Brătuleni, Comuna Miroslava | Iaşi | 9.6 mil | 21 |
| 5 | ENEROPTIM SRL | Bucureşti Sectorul 3 | Bucureşti | 8.6 mil | 20 |
| 6 | ALM POWER GROUP SRL | Sat Gherceşti, Comuna Gherceşti | Dolj | 6.8 mil | 85 |
| 7 | LUKAND ENERGY STUDIO S.R.L. | Municipiul Craiova | Dolj | 6.0 mil | 3 |
| 8 | COMTEC 2000 INC. SRL | Bucureşti Sectorul 6 | Bucureşti | 5.6 mil | 67 |
| 9 | RESONANCE DISTRIBUTION SRL | Municipiul Iaşi | Iaşi | 5.3 mil | 46 |
| 10 | TEHNOINSTAL SRL | Bucureşti Sectorul 2 | Bucureşti | 5.3 mil | 40 |
| 11 | ENERGY CONTROL SYSTEMS SRL | Bucureşti Sectorul 3 | Bucureşti | 4.8 mil | — |
| 12 | OPEN POWER ELECTRIC GLOBAL S.R.L. | Loc. Slănic, Oraş Slănic | Prahova | 4.7 mil | 9 |
| 13 | PROEXIB INSTAL SRL | Sat Săcălaz, Comuna Săcălaz | Timiş | 4.2 mil | 26 |
| 14 | IHUNT TECHNOLOGY IMPORT-EXPORT S.A. | Municipiul Ploieşti | Prahova | 4.1 mil | 29 |
| 15 | TOTAL ELECTRIC AUTOMATIZĂRI SRL | Municipiul Buzău | Buzău | 4.1 mil | 52 |
| 16 | ELBI ELECTRIC & LIGHTING SRL | Comuna Chiajna | Ilfov | 3.7 mil | 286 |
| 17 | NEWTECH AUTOMATION S.R.L. | Loc. Dragoeni, Municipiul Târgu Jiu | Gorj | 3.5 mil | 37 |
| 18 | R.C.T.I. COMPANY SRL | Municipiul Braşov | Braşov | 3.4 mil | 121 |
| 19 | CSATARI PLAST SRL | Municipiul Cluj-Napoca | Cluj | 3.4 mil | 10 |
| 20 | PROMELEK XXI S.A. | Comuna Apahida | Cluj | 3.3 mil | 168 |
| 21 | BIOTEL SRL | Municipiul Târgovişte | Dâmboviţa | 3.1 mil | 8 |
| 22 | ELECTRO SET S.R.L. | Municipiul Zalău | Sălaj | 2.9 mil | 40 |
| 23 | ELECTROBLUE SRL | Bucureşti Sectorul 2 | Bucureşti | 2.8 mil | 14 |
| 24 | ENOVA AUTOMATION & SERVICES SRL | Loc. Rovinari, Oraş Rovinari | Gorj | 2.8 mil | 86 |
| 25 | DIGITOP IMPEX SRL | Municipiul Suceava | Suceava | 2.7 mil | 15 |
| 26 | ELEMATIS TECH SRL | Municipiul Iaşi | Iaşi | 2.6 mil | 61 |
| 27 | INDUSTRIAL ELECTRICAL SOLUTIONS SRL | Bucureşti Sectorul 6 | Bucureşti | 2.6 mil | 7 |
| 28 | MHT EXPERIENCE SRL | Bucureşti Sectorul 3 | Bucureşti | 2.6 mil | 44 |
| 29 | LR E MOTION SRL | Municipiul Cluj-Napoca | Cluj | 2.5 mil | 7 |
| 30 | SAIP AUTOMATION INTERNATIONAL S.R.L. | Sat Sâncraiu de Mureş, Comuna Sâncraiu de Mureş | Mureş | 2.5 mil | 19 |
| 31 | ELECTRO PRO SOLUTIONS SRL | Sat Chiajna, Comuna Chiajna | Ilfov | 2.4 mil | 13 |
| 32 | CESIVO SRL | Municipiul Craiova | Dolj | 2.3 mil | 32 |
| 33 | TEKOTEHNIC SRL | Sat Mărgineni, Comuna Mărgineni | Bacău | 2.2 mil | 10 |
| 34 | ELECTRO TOTAL SYSTEM SRL | Bucureşti Sectorul 2 | Bucureşti | 2.2 mil | 15 |
| 35 | SON SISTEM SRL | Municipiul Constanţa | Constanţa | 2.2 mil | 15 |
| 36 | ZAPPA AUTOMATIZARI SRL | Sat Sâncraiu de Mureş, Comuna Sâncraiu de Mureş | Mureş | 2.2 mil | 2 |
| 37 | VOLTA GRUP SRL | Municipiul Piatra Neamţ | Neamţ | 2.0 mil | 135 |
| 38 | BACHMANN ROMANIA SRL | Municipiul Mediaş | Sibiu | 1.9 mil | 222 |
| 39 | ORION & GDS ELECTRIC SRL | Municipiul Baia Mare | Maramureş | 1.8 mil | 20 |
| 40 | INGINERIE SI TEHNOLOGIE INDUSTRIALA ELECTRA SRL | Bucureşti Sectorul 6 | Bucureşti | 1.8 mil | 30 |
| 41 | DHELECTRIC SYSTEM S.R.L. | Municipiul Oradea | Bihor | 1.8 mil | 25 |
| 42 | ELVON ELECTRIC SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 1.8 mil | 18 |
| 43 | SFC CLEAN ENERGY S.R.L. | Municipiul Cluj-Napoca | Cluj | 1.6 mil | 34 |
| 44 | DAFY ELECTRICAL WORK S.R.L. | Sat Bălţeşti, Comuna Bălţeşti | Prahova | 1.5 mil | 17 |
| 45 | REGENERGY S.R.L. | Municipiul Bacău | Bacău | 1.4 mil | 7 |
| 46 | ALPHAPOWER SRL | Municipiul Timişoara | Timiş | 1.4 mil | 4 |
| 47 | TRIPOL SISTEM ENERGY SRL | Municipiul Buzău | Buzău | 1.4 mil | 10 |
| 48 | AMPER PROIECT SRL | Municipiul Oradea | Bihor | 1.4 mil | 15 |
| 49 | DACOM IMPEX SRL | Bucureşti Sectorul 2 | Bucureşti | 1.4 mil | 19 |
| 50 | ELPREST SRL | Comuna Pieleşti | Dolj | 1.4 mil | 27 |
| 51 | SCHREDER ROMANIA SRL | Municipiul Cluj-Napoca | Cluj | 1.4 mil | 24 |
| 52 | R.T.S. ELECTRO SRL | Bucureşti Sectorul 6 | Bucureşti | 1.3 mil | 12 |
| 53 | ATELIER ELECTRIC KIBEDI SRL | Loc. Cristuru Secuiesc, Oraş Cristuru Secuiesc | Harghita | 1.3 mil | 1 |
| 54 | DELPRO SRL | Municipiul Oradea | Bihor | 1.3 mil | 12 |
| 55 | AXT SCADA S.R.L. | Municipiul Cluj-Napoca | Cluj | 1.3 mil | 1 |
| 56 | ENEERS PRIM S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 1.2 mil | 1 |
| 57 | SIRIUS FACTORY AUTOMATION S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 1.2 mil | 4 |
| 58 | MEDIUM ELECTRIC SRL | Bucureşti Sectorul 1 | Bucureşti | 1.2 mil | 16 |
| 59 | ELECTRIC COM 3M SRL | Municipiul Sibiu | Sibiu | 1.2 mil | 20 |
| 60 | LUCADI ELECTRIC SYSTEM S.R.L. | Sat Remetea Chioarului, Comuna Remetea Chioarului | Maramureş | 1.2 mil | 28 |
| 61 | INTRA SERV SRL | Municipiul Târgu Mureş | Mureş | 1.2 mil | 33 |
| 62 | GLOBAL ENERGY POWER SRL | Bucureşti Sectorul 4 | Bucureşti | 1.2 mil | 3 |
| 63 | DIAT AUTOMATION S.R.L. | Oraş Bragadiru | Ilfov | 1.2 mil | 1 |
| 64 | ALPHATECH ENGINEERING S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 1.1 mil | 1 |
| 65 | DEPISTO STAR SRL | Municipiul Gheorgheni | Harghita | 1.1 mil | 14 |
| 66 | TEHPRO SRL | Municipiul Cluj-Napoca | Cluj | 1.1 mil | 12 |
| 67 | EL-NESS SRL | Municipiul Craiova | Dolj | 1.1 mil | 6 |
| 68 | OBEN TECHNOLOGY S.R.L. | Municipiul Piteşti | Argeş | 1.0 mil | 15 |
| 69 | INEL SA | Municipiul Buzău | Buzău | 1.0 mil | 23 |
| 70 | PHI ELECTRO DISTRIBUTION SRL | Municipiul Cluj-Napoca | Cluj | 1.0 mil | 42 |
| 71 | SISELEC SRL | Municipiul Braşov | Braşov | 975.8 mii | 7 |
| 72 | WEB EYE ELECTRIC SERVICES S.R.L. | Municipiul Oradea | Bihor | 969.0 mii | 9 |
| 73 | ELECON PLUS SRL | Municipiul Arad | Arad | 965.4 mii | 15 |
| 74 | QUADRA ELECTRIC SRL | Bucureşti Sectorul 1 | Bucureşti | 944.8 mii | 3 |
| 75 | PROINSTAL SRL | Municipiul Ploieşti | Prahova | 891.1 mii | 16 |
| 76 | R. BIESSE SRL | Sat Ghiroda, Comuna Ghiroda | Timiş | 832.1 mii | 6 |
| 77 | CLASS ELECTRIC SRL | Bucureşti Sectorul 6 | Bucureşti | 792.0 mii | 17 |
| 78 | BASEL SERV S.R.L. | Municipiul Bacău | Bacău | 791.1 mii | 0 |
| 79 | ELECTROBRUM ENERGY AUTOMATION S.R.L. | Loc. Comăneşti, Oraş Comăneşti | Bacău | 731.1 mii | 7 |
| 80 | ASSOCIATION FOR RESEARCH IN ELECTRONICS AND AUTOMATICS SRL | Sat Sânandrei, Comuna Sânandrei | Timiş | 717.0 mii | 8 |
| 81 | VIL SERVICE IMPEX SRL | Bucureşti Sectorul 6 | Bucureşti | 710.2 mii | 9 |
| 82 | GREEMAN SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 696.3 mii | 12 |
| 83 | ELECTRIC POST SRL | Bucureşti Sectorul 2 | Bucureşti | 696.1 mii | 4 |
| 84 | PARAGON ELECTROINVEST S.R.L. | Municipiul Cluj-Napoca | Cluj | 695.2 mii | 1 |
| 85 | ENERGOGREEN SMART HOUSING S.R.L. | Municipiul Timişoara | Timiş | 692.6 mii | 3 |
| 86 | DT ELECTRIC SOCIETATE CU RASPUNDERE LIMITATĂ | Sat Valea Dobârlăului, Comuna Dobârlău | Covasna | 625.6 mii | 1 |
| 87 | GMA GLOBAL SYSTEM ENERGY S.R.L. | Loc. Năvodari, Oraş Năvodari | Constanţa | 618.0 mii | 1 |
| 88 | EVAL IND S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 614.4 mii | 2 |
| 89 | ALMAR ELECTRIC SRL | Loc. Vălenii de Munte, Oraş Vălenii de Munte | Prahova | 610.9 mii | 8 |
| 90 | ZAPPA ELECTRIC SRL | Sat Sâncraiu de Mureş, Comuna Sâncraiu de Mureş | Mureş | 608.6 mii | 23 |
| 91 | ELECTRO MANAGEMENT CONSULT SRL | Bucureşti Sectorul 3 | Bucureşti | 602.7 mii | 5 |
| 92 | AUT TECHSOL S.R.L. | Loc. Negreşti-Oaş, Oraş Negreşti-Oaş | Satu Mare | 594.5 mii | 9 |
| 93 | SOLUTIONS SERVICES SPECTRUM S.R.L. | Bucureşti Sectorul 5 | Bucureşti | 560.3 mii | 1 |
| 94 | ROMZIN SRL | Sat Lilieci, Comuna Hemeiuş | Bacău | 558.8 mii | 1 |
| 95 | SOLAR GREEN ENGINEERING S.R.L. | Municipiul Iaşi | Iaşi | 549.9 mii | 1 |
| 96 | KEVIN INTERNATIONAL SRL | Municipiul Braşov | Braşov | 548.9 mii | 9 |
| 97 | VOLTA X SOLAR SYSTEMS S.R.L. | Municipiul Piatra Neamţ | Neamţ | 547.7 mii | 94 |
| 98 | FELDER GRUPPE ECHIPAMENTE SRL | Bucureşti Sectorul 6 | Bucureşti | 538.6 mii | 21 |
| 99 | DELPRO SYSTEMS S.R.L. | Municipiul Oradea | Bihor | 536.1 mii | 6 |
| 100 | VEST SOLARMAN S.R.L. | Municipiul Timişoara | Timiş | 521.4 mii | 3 |
