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S4 Capital PLC is a digital advertising and marketing services company that operates internationally across the Americas, Europe, the Middle East, Africa, and the Asia Pacific. Founded by Sir Martin Sorrell in 2018, the company offers a comprehensive range of services through three main segments: Content, Data & Digital Media, and Technology Services. S4 Capital is publicly traded under the ticker symbol SFOR on the London Stock Exchange, focusing on providing integrated and innovative marketing solutions to global clients.

Cisco Systems is the largest provider of networking equipment in the world and one of the largest software companies in the world. Its largest businesses are selling networking hardware and software (where it has leading market shares) and cybersecurity software such as firewalls. It also has collaboration products, like its Webex suite, and observability tools. It primarily outsources its manufacturing to third parties and has a large sales and marketing staff-25,000 strong across 90 countries. Overall, Cisco employs 80,000 people and sells its products globally.