| Municipality | Number of companies |
| Tulancingo De Bravo | 19 |
| Pachuca De Soto | 15 |
| Tizayuca | 6 |
| Atotonilco De Tula | 6 |
| Tepeji Del Río De Ocampo | 5 |
| Tula De Allende | 4 |
| Mineral De La Reforma | 3 |
| Tlahuelilpan | 3 |
| Atitalaquia | 1 |