1. RFI Rete Ferroviaria Italiana, Gruppo Ferrovie dello Stato (Italian Railway)
1.1. high speed track
1.1.1 signalling
1.1.2 overhead line
1.1.3 telecommunications
1.1.4 lighting
1.2. ordinary track
1.2.1 signalling
1.2.2 overhead line
1.2.3 telecommunications
1.2.4 lighting
1.2.5 level crossing.
2. ITALFERR Gruppo Ferrovie dello Stato (Italian Railway engineering)
2.1. high speed track
2.1.1 signalling
2.1.2 overhead line
2.1.3 telecommunications
2.1.4 lighting
1.2. ordinary track
2.2.1 signalling
2.2.2 overhead line
2.2.3 telecommunications
2.2.4 lighting
3. TRENITALIA Gruppo Ferrovie dello Stato (Italian Railway passenger transportation)
4. FNM Ferrovie Nord Milano (Regional Railway Lombardia)
5. MM Metropolitana Milanese (Public Transportation Company of Milan engineering)
6. RFT Rete Ferroviaria Toscana (Regional Railway Tuscany)
6.2. ordinary track
6.1.1 signalling
6.1.2 overhead line
6.1.3 telecommunications
6.1.4 lighting
6.1.5 level crossing.
7. ATAF (Public Transportation Company of Florence)
7.1. ordinary track
7.1.1 overhead line
8. FCU Ferrovia Centrale Umbra (Regional Railway Umbria)
8.1. ordinary track
8.1.1 signalling
9. ATAC (Public Transportation Company of Rome)
9.1. ordinary track
9.1.1 signalling
9.2 road traffic management
9.2.1 design and implementation of automation systems for controlling vehicle access, parking management exchange and remote control of automation systems
10. FC Ferrovie della Calabria (Regional Railway Calabria)
10.1. ordinary track
10.1.1 signalling
11. ALSTOM Transport
11.1. high speed track
11.1.1 signalling
11.1.2 overhead line
11.1.3 telecommunications
11.1.4 lighting
11.2. ordinary track
11.2.1 signalling
11.2.2 overhead line
11.2.3 telecommunications
11.2.4 lighting
11.2.5 level crossing.
12. ANAS (Italian National Road Agency)
13. ANSALDO STS
13.1. high speed track
13.1.1 signalling
13.2. ordinary track
13.2.1 signalling
14. ASTALDI
14.1. ordinary track
14.1.1 signalling
14.1.2 overhead line
14.1.3 telecommunications
14.1.4 lighting
15. COOPSETTE
15.1. high speed track
15.1.1 signalling
15.1.2 overhead line
15.1.3 telecommunications
15.1.4 lighting
16. ENEL (Main Italian electricity operator)
17. TERNA (First grid operator for electricity transmission in Europe.)
18. VAE Voest Alpine Railway
18.1. high speed track
18.1.1 signalling
19. CNR (National Research Council)
19.1. maintenance of electrical systems
20. MUNICIPALITY OF ROME
20.1. road traffic management
20.1.1 maintenance of centralized systems for traffic management
20.1.2 implementation of traffic lights and of its centralized system