Railway infrastructure companies are organizations responsible for the construction, maintenance, and management of railway systems. They ensure that tracks, bridges, tunnels, and stations are safe and efficient for trains to operate. These companies play a crucial role in the transportation network, facilitating the movement of goods and passengers. These companies often collaborate with government agencies and private sectors to develop and upgrade railway networks. They may also be involved in planning new routes and implementing technology to improve service reliability. Examples of such companies include Network Rail in the UK and Amtrak in the United States.