The World Before the Deal
To understand the impact of Cisco’s defining move, you have to picture the tech landscape of the early 1990s. Cisco, founded in 1984, was a fast-growing and respected company, but it was primarily known for one thing: routers. These devices were the essential
traffic cops of the burgeoning internet, directing data between different networks. The company went public in 1990 and was doing well, but the world of networking was fragmented. Local area networks (LANs) within offices were becoming faster and more complex, and a new technology—switching—was emerging to manage this internal traffic more efficiently. Cisco was a major player in routing, but it was at risk of being left behind in the crucial, high-growth switching market. The conventional wisdom for a large company was to develop new technology in-house, a slow and often bureaucratic process.
The $95 Million Gamble
The single strategic move was Cisco’s first-ever acquisition: a small, privately held startup named Crescendo Communications, purchased in September 1993 for about $95 million in stock. At the time, many observers thought Cisco was making a mistake. Crescendo had only $10 million in revenue, and paying such a premium seemed reckless. But Cisco wasn’t just buying a product; it was buying time, talent, and a ticket into the future of networking. Crescendo was a leader in a high-speed switching technology called Copper Distributed Data Interface (CDDI). By acquiring Crescendo, Cisco instantly gained a foothold in a market it couldn't afford to enter slowly. As then-CEO John Morgridge stated, the deal equipped Cisco with technology that would allow it 'greater responsiveness' to its customers' needs.
A New Playbook for Growth
The Crescendo acquisition wasn't just a one-off purchase; it became the blueprint for one of the most aggressive and successful M&A (mergers and acquisitions) strategies in corporate history. Under the leadership of John Chambers, who became CEO in 1995, Cisco turned acquiring companies into a core business function. The company perfected a repeatable process: identify a burgeoning market, find the most innovative small company leading it, acquire them, and rapidly integrate their products into Cisco's global sales and distribution machine. The technology from Crescendo formed the basis of Cisco's wildly successful Catalyst line of switches, which became a multi-billion dollar business and, for a time, even out-earned its famous router division. The acquisition proved that it was often faster and more effective to buy innovation than to build it from scratch, especially in a rapidly changing industry.
The Spin-In and the Legacy
Cisco's strategy evolved from simple acquisitions into a more complex model known as the 'spin-in'. Several key engineers who joined from Crescendo—including Mario Mazzola, Prem Jain, and Luca Cafiero—would later form new startups with funding from Cisco itself. These companies, like Andiamo Systems and Nuova Systems, operated with the agility of a startup to develop groundbreaking technology in areas like storage networking and data centers. Once the products were mature, Cisco would acquire the company, 'spinning it in' and integrating the new technology. While sometimes controversial for creating a special class of highly compensated engineers, this model allowed Cisco to stay on the cutting edge without being suffocated by its own size. This 'buy-to-innovate' model, pioneered with the Crescendo deal, became standard practice across Silicon Valley. Cisco went on to acquire over 200 companies, using this playbook to dominate new sectors from cybersecurity to collaboration.













