| 1 | ROMSTAL IMEX SRL | Bucureşti Sectorul 4 | Bucureşti | 1.4 bn | 1,412 |
| 2 | MELINDA-IMPEX INSTAL S.A. | Municipiul Odorheiu Secuiesc | Harghita | 400.1 m | 346 |
| 3 | HONEST GENERAL TRADING SRL | Bucureşti Sectorul 3 | Bucureşti | 356.1 m | 399 |
| 4 | NOVASERVIS FERRO GROUP SRL | Municipiul Cluj-Napoca | Cluj | 249.9 m | 93 |
| 5 | WINTER COM SRL | Municipiul Bistriţa | Bistriţa-Năsăud | 161.8 m | 98 |
| 6 | DANFOSS SRL | Bucureşti Sectorul 5 | Bucureşti | 160.0 m | 140 |
| 7 | CONBETA SRL | Sat Goleşti, Comuna Goleşti | Vrancea | 137.0 m | 69 |
| 8 | GOLDEN FISH SRL | Sat Ştefăneştii de Jos, Comuna Ştefăneştii de Jos | Ilfov | 130.4 m | 121 |
| 9 | PURMO GROUP ROMANIA S.R.L. | Sat Juc-Herghelie, Comuna Jucu | Cluj | 125.4 m | 28 |
| 10 | INDUSTRIAL M.D.TRADING SRL | Bucureşti Sectorul 1 | Bucureşti | 119.5 m | 9 |
| 11 | SECPRAL PRO INSTALATII SRL | Municipiul Cluj-Napoca | Cluj | 112.1 m | 95 |
| 12 | TOYA ROMANIA SA | Bucureşti Sectorul 1 | Bucureşti | 105.6 m | 82 |
| 13 | MAGDOLNA IMPEX SRL | Municipiul Odorheiu Secuiesc | Harghita | 97.3 m | 75 |
| 14 | PETROUZINEX SRL | Municipiul Piatra Neamţ | Neamţ | 94.8 m | 42 |
| 15 | GEORG FISCHER GMBH ALBERSHAUSEN SUCURSALA BUCURESTI | Bucureşti Sectorul 2 | Bucureşti | 91.0 m | 42 |
| 16 | HERZ ARMATUREN ROMANIA SRL | Bucureşti Sectorul 5 | Bucureşti | 90.0 m | 16 |
| 17 | SOLARGROUP ENERGY RO S.R.L. | Municipiul Salonta | Bihor | 89.4 m | 13 |
| 18 | TECE ROMÂNIA S.R.L. | Sat Chiajna, Comuna Chiajna | Ilfov | 79.0 m | 19 |
| 19 | AMP GRUP SRL | Municipiul Craiova | Dolj | 74.9 m | 46 |
| 20 | ROYAL N SRL | Municipiul Câmpina | Prahova | 67.4 m | 49 |
| 21 | FISCHER FIXINGS ROMANIA S.R.L. | Municipiul Cluj-Napoca | Cluj | 62.2 m | 45 |
| 22 | TRIVAS GRUP SRL | Bucureşti Sectorul 2 | Bucureşti | 59.6 m | 34 |
| 23 | SOLAR HEV S.R.L. | Municipiul Salonta | Bihor | 58.4 m | 5 |
| 24 | SALUS CONTROLS ROMANIA SRL | Municipiul Cluj-Napoca | Cluj | 58.1 m | 34 |
| 25 | INSTAL-DAC SRL | Municipiul Braşov | Braşov | 57.9 m | 29 |
| 26 | TIEMME SYSTEMS SRL | Sat Bolintin-Deal, Comuna Bolintin-Deal | Giurgiu | 57.1 m | 19 |
| 27 | HOMPLEX S.A. | Sat Căţelu, Comuna Glina | Ilfov | 56.9 m | 43 |
| 28 | EXPRESS INSTALL DISTRIBUTION SRL | Bucureşti Sectorul 4 | Bucureşti | 55.0 m | 22 |
| 29 | AEROGINERO S.R.L. | Municipiul Suceava | Suceava | 51.4 m | 17 |
| 30 | MACO SOLAR S.R.L. | Municipiul Târgu Mureş | Mureş | 48.0 m | 1 |
| 31 | KERATO INSTAL SRL | Municipiul Cluj-Napoca | Cluj | 47.9 m | 21 |
| 32 | FERBAT SERV SRL | Municipiul Ploieşti | Prahova | 45.2 m | 36 |
| 33 | KREATIV SRL | Municipiul Satu Mare | Satu Mare | 43.0 m | 46 |
| 34 | FRANKE ROMANIA SRL | Loc. Pantelimon, Oraş Pantelimon | Ilfov | 42.7 m | 21 |
| 35 | SCHULLER EH KLAR SRL | Municipiul Cluj-Napoca | Cluj | 40.6 m | 37 |
| 36 | WINTEC SRL | Bucureşti Sectorul 6 | Bucureşti | 38.7 m | 36 |
| 37 | VERTICAL CIA SRL | Bucureşti Sectorul 6 | Bucureşti | 36.9 m | 17 |
| 38 | INSTAL CARPATICA SRL | Municipiul Braşov | Braşov | 36.3 m | 22 |
| 39 | HYDROSYSTEMS SRL | Municipiul Petroşani | Hunedoara | 34.5 m | 44 |
| 40 | COMFORTEX ENERGY S.R.L. | Sat Glina, Comuna Glina | Ilfov | 32.5 m | 2 |
| 41 | SIMPLEX TRADE INVESTMENT SRL | Bucureşti Sectorul 1 | Bucureşti | 31.8 m | 25 |
| 42 | B & S DISTRICONSTRUCT SRL | Sat Miroslava, Comuna Miroslava | Iaşi | 31.6 m | 12 |
| 43 | TOPMET BEST SRL | Municipiul Făgăraş | Braşov | 31.5 m | 2 |
| 44 | LUDOTERM SRL | Bucureşti Sectorul 6 | Bucureşti | 31.5 m | 30 |
| 45 | N F G TRADE SRL | Bucureşti Sectorul 6 | Bucureşti | 31.0 m | 35 |
| 46 | PRESTCOM INSTAL SRL | Bucureşti Sectorul 1 | Bucureşti | 30.1 m | 29 |
| 47 | GEZE ROMANIA SRL | Bucureşti Sectorul 2 | Bucureşti | 29.5 m | 20 |
| 48 | Riello Ro SRL | Bucureşti Sectorul 1 | Bucureşti | 28.8 m | 11 |
| 49 | ELIOSTERM SRL | Municipiul Iaşi | Iaşi | 28.1 m | 14 |
| 50 | DENIROM 2000 SRL | Municipiul Buzău | Buzău | 28.0 m | 16 |
| 51 | ADMIRA DISTRIBUTION S.R.L. | Municipiul Timişoara | Timiş | 27.3 m | 6 |
| 52 | EURO ISSA COMPANY SRL | Bucureşti Sectorul 4 | Bucureşti | 26.8 m | 23 |
| 53 | REDOMAR SRL | Municipiul Baia Mare | Maramureş | 26.5 m | 16 |
| 54 | ORDEA PRODCOM SRL | Municipiul Târgu Mureş | Mureş | 25.5 m | 36 |
| 55 | ERATA IMPEX SRL | Municipiul Braşov | Braşov | 25.1 m | 39 |
| 56 | ASSA ABLOY GLOBAL SOLUTIONS ROMÂNIA S.R.L. | Bucureşti Sectorul 6 | Bucureşti | 24.2 m | 17 |
| 57 | AMBER TECHNOLOGIES SRL | Bucureşti Sectorul 2 | Bucureşti | 23.9 m | 36 |
| 58 | LYON BUSINESS SRL | Sat Vlădiceni, Comuna Tomeşti | Iaşi | 23.7 m | 14 |
| 59 | BENDKOPP ELECTRO SRL | Municipiul Cluj-Napoca | Cluj | 23.1 m | 31 |
| 60 | IMI INTERNATIONAL CO. SRL | Bucureşti Sectorul 3 | Bucureşti | 22.7 m | 10 |
| 61 | M & M SOLUTII TERMICE SRL | Municipiul Bacău | Bacău | 22.4 m | 10 |
| 62 | IVAR HVAC ROMANIA SRL | Oraş Pantelimon | Ilfov | 22.0 m | 11 |
| 63 | BENDKOPP FASTENERS IMPORT EXPORT SRL | Municipiul Cluj-Napoca | Cluj | 21.3 m | 29 |
| 64 | BOLLHOFF SRL | Sat Borş, Comuna Borş | Bihor | 20.5 m | 20 |
| 65 | MATRIX ACTIVITY GRUP SRL | Sat Afumaţi, Comuna Afumaţi | Ilfov | 20.2 m | 16 |
| 66 | BDR THERMEA ROMANIA SRL | Bucureşti Sectorul 2 | Bucureşti | 20.1 m | 6 |
| 67 | THERMICA GOTO DISTRIBUTION S.R.L. | Municipiul Iaşi | Iaşi | 19.3 m | 3 |
| 68 | MDI CONSTRUCT TRANS EXPERT SRL | Comuna Afumaţi | Ilfov | 19.0 m | 26 |
| 69 | CUSTOM TECHNOLOGIES SRL | Municipiul Iaşi | Iaşi | 18.7 m | 9 |
| 70 | SMART HOME INSTAL IASI S.R.L. | Sat Golăieşti, Comuna Golăieşti | Iaşi | 18.7 m | 11 |
| 71 | ROMSTAL MURES SRL | Municipiul Târgu Mureş | Mureş | 18.5 m | 31 |
| 72 | SMS INDUSTRIES EUROPE S.R.L. | Bucureşti Sectorul 1 | Bucureşti | 17.9 m | 1 |
| 73 | LINOX TEHNIC SRL | Sat Vlădiceni, Comuna Tomeşti | Iaşi | 17.8 m | 11 |
| 74 | ALUNU SRL | Loc. Balş, Oraş Balş | Olt | 17.5 m | 43 |
| 75 | CRISMAIR TRADE SRL | Municipiul Oradea | Bihor | 17.4 m | 20 |
| 76 | PROINSTAL PIPE SRL | Oraş Ştefăneşti | Argeş | 16.9 m | 23 |
| 77 | RECA BUCURESTI SRL | Bucureşti Sectorul 1 | Bucureşti | 16.4 m | 21 |
| 78 | KERATO TIM S.R.L. | Sat Săcălaz, Comuna Săcălaz | Timiş | 15.4 m | 7 |
| 79 | STARINST PROEXPERT SRL | Municipiul Cluj-Napoca | Cluj | 15.1 m | 14 |
| 80 | EURO VALVES DISTRIBUTION SRL | Bucureşti Sectorul 5 | Bucureşti | 14.9 m | 5 |
| 81 | ELETERM SRL | Municipiul Beiuş | Bihor | 14.7 m | 19 |
| 82 | AMADEUS SRL | Municipiul Satu Mare | Satu Mare | 14.5 m | 11 |
| 83 | ACQUA SERVICE SA | Bucureşti Sectorul 6 | Bucureşti | 14.4 m | 17 |
| 84 | LEBRO TRADING SRL | Bucureşti Sectorul 6 | Bucureşti | 14.1 m | 3 |
| 85 | PACEGO SRL | Loc. Buftea, Oraş Buftea | Ilfov | 14.0 m | 10 |
| 86 | MÜPRO ROMANIA S.R.L. | Sat Chiajna, Comuna Chiajna | Ilfov | 13.8 m | 9 |
| 87 | TEONIC SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 13.5 m | 14 |
| 88 | DONI DECOR SRL | Municipiul Craiova | Dolj | 13.4 m | 18 |
| 89 | MEISER ROMANIA SRL | Municipiul Oradea | Bihor | 13.3 m | 8 |
| 90 | MARISIM TOTAL INSTAL SRL | Sat Bradu, Comuna Bradu | Argeş | 13.3 m | 15 |
| 91 | SANIMET COM SRL | Municipiul Ploieşti | Prahova | 12.7 m | 19 |
| 92 | TEOPET SERVCOM SRL | Municipiul Bacău | Bacău | 12.6 m | 8 |
| 93 | FRIA TECHNIC WELD S.R.L. | Municipiul Mediaş | Sibiu | 12.5 m | 5 |
| 94 | BOGDAN STORE S.R.L. | Sat Dobroeşti, Comuna Dobroeşti | Ilfov | 12.3 m | 12 |
| 95 | ENDER INSTAL SRL | Bucureşti Sectorul 2 | Bucureşti | 12.3 m | 11 |
| 96 | AIR TECHNIK SRL | Sat Giarmata, Comuna Giarmata | Timiş | 12.3 m | 18 |
| 97 | ARIMAT ONE S.R.L. | Municipiul Vaslui | Vaslui | 12.2 m | — |
| 98 | LINEX-PROD SRL | Municipiul Râmnicu Vâlcea | Vâlcea | 12.0 m | 14 |
| 99 | LIC 29 INSTALATII SRL | Sat Giroc, Comuna Giroc | Timiş | 11.5 m | 10 |
| 100 | TOP DEVELOPMENT INSTAL SRL | Sat Fundeni, Comuna Dobroeşti | Ilfov | 11.4 m | 4 |
