Cisco Systems, Inc. (CSCO) vs Merck & Co., Inc. (MRK)

Cisco Systems, Inc. is the world’s largest provider of networking equipment and ranks among the largest software companies globally. Its core businesses include networking hardware and software, where it holds leading market positions, as well as cybersecurity software such as firewalls. The company also offers collaboration solutions, including its Webex suite, and observability tools. Cisco primarily relies on third-party manufacturers and maintains a large sales and marketing organization of 25,000 employees across 90 countries. In total, the company employs about 80,000 people and markets its products worldwide.

Merck & Co., Inc. develops pharmaceutical products across multiple therapeutic areas, including cardiometabolic disorders, oncology, and infectious diseases. In cancer treatment, its immuno-oncology portfolio, led by Keytruda, represents a significant driver of total revenue. The company also maintains a strong vaccines business focused on preventing pediatric illnesses, alongside Gardasil for human papillomavirus. In addition, Merck markets animal health products. Geographically, 47% of the company’s sales come from its U.S. human health segment, which includes pharmaceuticals and vaccines.