Alphabet Inc. (Google) vs Microsoft Corporation

Larry Page and Sergey Brin met at Stanford in 1995. By 1996 they had built a search engine called BackRub — named after its method of analysing backlinks. It ran on Stanford's servers and consumed so much bandwidth that the university repeatedly asked them to take it down.

Sun Microsystems co-founder Andy Bechtolsheim wrote Google a cheque for $100,000 in August 1998 after a brief demo in a Stanford parking lot. There was one problem: Google Inc. didn't exist yet. Page and Brin had to incorporate the company before they could cash it.

In 1999, Page and Brin tried to sell Google to Excite CEO George Bell for $1 million. Bell turned them down — the search was too good, it would send users away from Excite's portal too quickly. Bell later called it the worst decision of his career. Excite filed for bankruptcy in 2001. Google became worth more than $2 trillion.

When OpenAI launched ChatGPT in November 2022, Google declared an internal "code red." The company that had invented the transformer architecture — the technology that made ChatGPT possible — had published its research openly and was now scrambling to compete with the system it had inadvertently enabled. Google rushed Bard to market. It made a factual error in its first public demo. The stock dropped $100 billion in a single day. Google's search share fell from 80% to under 70% as users migrated to ChatGPT, Perplexity, and Claude.

In September 2025, a U.S. federal court ruled that Google had illegally maintained its monopoly in search, ordering the company to end exclusive distribution contracts with Apple, device manufacturers, and browser makers. The Apple deal alone had been worth approximately $20 billion per year to keep Google as the default search engine on Safari. The court stopped short of forcing Google to sell Chrome or Android, but the ruling was the most consequential antitrust action against a technology company since the Microsoft case of 1998. Google announced it would appeal. The case is expected to reach the Supreme Court.

In January 1975, Paul Allen showed Bill Gates an issue of Popular Electronics featuring the Altair 8800. Neither of them had written a BASIC interpreter for it. But Gates called MITS and told them Microsoft had a working version ready. They then had eight weeks to actually build it. It worked. Gates was 19.

IBM approached Microsoft in 1980 to write an operating system for its new PC. Microsoft didn't have one. Gates bought QDOS from a Seattle programmer for $50,000, renamed it MS-DOS, and licensed it to IBM — while retaining the right to license it to other manufacturers. IBM thought hardware was the business. Gates understood it was software. The decision made Microsoft the most powerful company in computing for the next two decades.

When Satya Nadella became CEO in 2014, Microsoft was widely regarded as a company that had missed mobile, missed search, and missed social. Nadella pivoted to cloud computing, transformed Microsoft's culture from internal competition to growth mindset, and repositioned Azure as the foundation of the enterprise. The market cap tripled in his first five years. The transformation is studied in business schools as one of the greatest corporate turnarounds in history.

Microsoft invested $10 billion in OpenAI in January 2023, securing exclusive access to GPT-4. Within months, "Copilot" had been embedded in Word, Excel, Teams, GitHub, and Bing — repositioning Microsoft as the leading AI company in enterprise software. By early 2025, Microsoft's AI business had crossed $13 billion in annualised revenue, growing 175% year-over-year.

By Q3 fiscal 2026, Microsoft's AI business had surpassed $37 billion in annualised revenue — growing 123% year-over-year. Azure revenue grew 40%. Microsoft 365 Copilot had over 20 million paid seats, with the number of enterprise customers deploying more than 50,000 seats having quadrupled year-over-year. Cloud revenue crossed $50 billion in a single quarter. Microsoft had extended its OpenAI partnership, securing a 27% stake in the company and cementing its position as the most important distribution partner for large language models in enterprise software.