64 companies with NACE 3831 - in Bucuresti 32 companies with NACE 3831 - in Ilfov 31 companies with NACE 3831 - in Constanta 29 companies with NACE 3831 - in Arges 29 companies with NACE 3831 - in Cluj 28 companies with NACE 3831 - in Bacau 28 companies with NACE 3831 - in Suceava 24 companies with NACE 3831 - in Dolj 23 companies with NACE 3831 - in Mures 22 companies with NACE 3831 - in Bihor 21 companies with NACE 3831 - in Prahova 21 companies with NACE 3831 - in Maramures 21 companies with NACE 3831 - in Iasi 20 companies with NACE 3831 - in Arad 20 companies with NACE 3831 - in Hunedoara 17 companies with NACE 3831 - in Timis 16 companies with NACE 3831 - in Neamt 16 companies with NACE 3831 - in Calarasi 15 companies with NACE 3831 - in Salaj 14 companies with NACE 3831 - in Gorj 14 companies with NACE 3831 - in Dambovita 12 companies with NACE 3831 - in Valcea 12 companies with NACE 3831 - in Caras-severin 10 companies with NACE 3831 - in Buzau 10 companies with NACE 3831 - in Satu mare 10 companies with NACE 3831 - in Vaslui 9 companies with NACE 3831 - in Giurgiu 9 companies with NACE 3831 - in Botosani 8 companies with NACE 3831 - in Bistrita-nasaud 8 companies with NACE 3831 - in Galati 8 companies with NACE 3831 - in Olt 7 companies with NACE 3831 - in Alba 7 companies with NACE 3831 - in Mehedinti 7 companies with NACE 3831 - in Braila 7 companies with NACE 3831 - in Vrancea 6 companies with NACE 3831 - in Ialomita 6 companies with NACE 3831 - in Sibiu 6 companies with NACE 3831 - in Brasov 6 companies with NACE 3831 - in Teleorman 4 companies with NACE 3831 - in Covasna 3 companies with NACE 3831 - in Tulcea 2 companies with NACE 3831 - in Harghita