Microsoft is the dominant enterprise technology company, operating Azure (world's #2 cloud), Office 365, LinkedIn, GitHub, and Xbox. Its $13B investment in OpenAI made it the first major AI-integrated productivity suite. Azure grows 25%+ annually as enterprises migrate workloads to cloud. Microsoft Teams replaced Slack in most Fortune 500 companies overnight during COVID.
Key relationships in depth
NVIDIA supplies H100, H200, and Blackwell B200 GPUs that power Azure's AI supercomputing clusters. Microsoft is one of NVIDIA's largest hyperscaler customers, ordering tens of thousands of GPUs per quarter to support Azure OpenAI Service, Azure ML, and Copilot infrastructure.
Why it matters: Azure's position as the exclusive cloud for OpenAI creates massive GPU demand that only NVIDIA can fulfill at scale. Every ChatGPT inference request and Copilot suggestion runs on NVIDIA hardware hosted in Azure. Microsoft's $13B investment in OpenAI is only as valuable as the compute it can supply.
Microsoft & Apple
Microsoft's Office 365 suite including Word, Excel, PowerPoint, Teams, and Outlook is available on iOS and macOS and ranks among the highest-grossing app categories on the App Store. The relationship traces to 1997 when Microsoft invested $150M in Apple as part of a crisis-era settlement and committed to continue developing Office for Mac. Microsoft 365 now has over 400M paid seats, a significant portion of which access the product on Apple hardware.
Why it matters: Office availability on macOS is a baseline requirement for enterprise Mac adoption. Apple's roughly 23% enterprise laptop market share in the US depends in part on Microsoft's continued platform investment. Microsoft benefits from Apple's premium user base and higher-than-average app spending habits per user.
Microsoft and Google are the world's two largest cloud and enterprise software competitors, battling across cloud infrastructure (Azure vs Google Cloud), productivity suites (Microsoft 365 vs Google Workspace), AI assistants (Copilot vs Gemini), and search (Bing vs Google Search). Microsoft's $13B OpenAI investment gave it a significant AI lead in enterprise software, which Google has aggressively countered through Gemini model integration across Workspace, Search, and GCP.
Why it matters: Both companies derive the majority of their commercial growth from cloud and AI services, making every enterprise software sale a zero-sum competitive moment. Microsoft's dominant position in enterprise productivity with Office 365's 300+ million commercial seats is the incumbent moat Google attempts to erode with Workspace, while Google's 90%+ search market share is the core revenue base Microsoft tries to chip away at with Bing and Copilot integration in Windows.
Amazon and Microsoft are the world's two largest cloud providers, with AWS and Azure together holding over 50% of global cloud infrastructure market share and competing intensely for enterprise AI, cloud migration, and digital transformation contracts. The two companies occasionally cooperate on industry standards (such as interoperability frameworks and security certifications) but compete directly for every enterprise cloud contract, with Amazon winning AWS-first deals and Microsoft winning M365-adjacent cloud migrations.
Why it matters: The enterprise cloud market is large enough for both AWS and Azure to grow simultaneously, but each hyperscaler actively displaces the other in competitive cloud consolidation deals. Microsoft has increasingly won cloud contracts by bundling Azure with M365 and Copilot AI, while AWS has defended its position with depth of services and developer ecosystem advantages that Microsoft cannot replicate.
Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.