CompetitorsWide moat

Microsoft is unusual among the companies in this app in that it competes seriously in almost every market it entered, and leads outright in only some of them. That mixed record is the point: its moat is not any single dominant product but the enterprise relationship that lets a second-place product win anyway.

In cloud it genuinely came second. Amazon reached the market years earlier and still holds the larger share — roughly 28% against Azure's 21% by mid-2026¹ — though Azure has been growing faster for years and the gap keeps narrowing. In productivity the rival is Google, which attacks Office with a free alternative and now attacks Copilot with Gemini, having never managed to displace Microsoft where the money is. In applications the field is Salesforce, ServiceNow and a dozen others, all of whom now find Microsoft selling agents into accounts they thought were theirs.

The most underrated front is one Microsoft won without anyone declaring it a contest. Its security business generated roughly $37 billion in fiscal 2025 — larger than CrowdStrike, Palo Alto and Zscaler put together² — assembled almost entirely by bundling protection into subscriptions enterprises already bought.

The competitor not given a page here is OpenAI, because it already has two: Microsoft holds about 25% of it, booked $24.1 billion of revenue from it last year, sells its models, buys its technology, and is simultaneously building in-house replacements — a relationship covered under Future Bets rather than treated as ordinary rivalry. The pattern across all of these is the same: Microsoft rarely arrives first and rarely has the best standalone product, but it is already inside the building when the purchase order is written.