Cloud Provider · 2 of 6

Microsoft Azure

The enterprise cloud. Tightly integrated with Microsoft's stack — Active Directory, .NET, SQL Server, Office 365 — and the de-facto choice for most Fortune 500s already running Microsoft.

#2 by shareEnterprise-firstMicrosoft stackHybrid-strongOpenAI partnership
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Quick Facts

At a Glance

Launched
2010 (as "Windows Azure")
Parent
Microsoft
Regions
60+ (most of any cloud)
Market share
~25%
Sweet spot
Microsoft-stack enterprises
AI partner
Exclusive Azure OpenAI

Basic Concepts

  • Subscription → Resource Group → Resource — Azure's nested hierarchy.
  • Microsoft Entra ID (formerly Azure AD) is the identity backbone — same one behind Office 365.
  • ARM / Bicep for native IaC; Terraform also fully supported.
  • Region pairs for built-in geo-replication strategies.
  • Hybrid is a first-class story — Azure Arc extends Azure to on-prem & other clouds.
Services

Signature Services

CategoryServiceUse
ComputeVirtual MachinesIaaS, every flavor of Windows & Linux.
ComputeApp ServiceMature PaaS for web apps & APIs.
ComputeFunctionsServerless functions (Consumption / Premium / Flex).
ContainersAKS / ACA / ACIManaged Kubernetes / serverless containers / instances.
StorageBlob Storage / Files / Data Lake Gen2Object / file / hierarchical analytics storage.
DatabaseAzure SQL / Cosmos DBManaged SQL Server / multi-model NoSQL.
DatabasePostgreSQL / MySQL Flexible ServerManaged open-source DBs.
NetworkingVNet, Front Door, Application Gateway, Private LinkNetwork, edge, WAF, private endpoints.
IdentityMicrosoft Entra IDSSO for SaaS & in-app users.
MessagingService Bus / Event Grid / Event HubsQueues, events, Kafka-compatible streams.
AnalyticsSynapse / Fabric / DatabricksWarehouse + lakehouse + ML.
AI / MLAzure OpenAI / AI Foundry / ML StudioGPT family + Microsoft AI services.
DevOpsAzure DevOps, GitHub (Microsoft-owned)End-to-end ALM.
HybridAzure Arc, Stack HCI, Stack EdgeAzure on customer hardware & other clouds.
Mechanics

The Azure Way

Resource Hierarchy
  • Tenant = your Entra ID directory.
  • Management Group → Subscription → Resource Group → Resource.
  • Policies + RBAC apply at any level — inherited downward.
  • Multi-subscription is the norm at scale (one per environment, team, or product).
Microsoft Entra ID

Azure's killer differentiator. Same identity stack as Office 365 — single sign-on works out of the box for every internal app. Conditional Access policies, MFA, B2B / B2C variants for partners and customers.

App Service — The Beloved PaaS

Azure's mature PaaS. Push code via Git or Container Registry; Azure runs it with auto-scale, custom domains, free TLS, deployment slots (blue/green built in), and managed identity. Often a saner default than Functions for web apps.

Hybrid & Multi-Cloud

Azure Arc projects Azure's control plane onto:

  • On-prem servers & Kubernetes clusters.
  • EC2 / GCE VMs in other clouds.
  • Edge devices.

Manage them with the same RBAC, policies, monitoring, and tagging as native Azure resources — Azure's strongest moat in regulated industries.

Cost & Licensing Levers
  • Azure Hybrid Benefit — reuse on-prem Windows / SQL licenses; major saver.
  • Reserved Instances / Savings Plan — 1- & 3-year commitments.
  • EA / MCA enterprise agreements with custom pricing.
  • Spot VMs for batch & CI workloads.
When to Pick

Where Azure Wins

Microsoft-Stack Enterprises

Office 365, AD, .NET, SQL Server already in production.

Hybrid & Regulated

Azure Arc + the most compliance certifications.

OpenAI / Copilot Strategy

Azure OpenAI is the official enterprise path for GPT.

Geographic Reach

More regions than any other cloud — esp. EU sovereign clouds.

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