Which company is recognized as the leader in IT and networking globally?

Cisco is recognized as the leader in IT and networking globally primarily due to its extensive portfolio of networking hardware, telecommunications equipment, and high-technology services and products. The company has established itself as a key innovator in the field of networking, consistently introducing groundbreaking technologies such as routers, switches, and security solutions that are vital for modern communication and data transfer.

Cisco's dominant market position can also be attributed to its strong brand reputation, vast customer base, and significant investment in research and development to maintain technology leadership. Additionally, Cisco plays a crucial role in shaping industry standards and practices, further solidifying its leadership status in the IT and networking space.

While other companies listed also have notable influence in certain areas of IT, such as BT with telecommunications and Equinix with data centers, they do not match Cisco's comprehensive reach and impact across the entire networking landscape. Thus, Cisco's extensive offerings and leadership in innovation distinctly place it at the forefront of the IT and networking industry.