Amazon Web Services (AWS), the cloud computing service of Amazon.com, is the largest cloud service provider globally. From its data centers, the business provides over 200 fully featured services including compute, storage, and database.

AWS currently has 33 regions and 105 availability zones in operation. These regions and availability zones are located throughout the United States, AWS GovCloud (US), Americas, Europe, Asia Pacific, as well as in the Middle East and Africa.

Amazon Web Services (AWS) has grown net sales from approximately $8 billion in 2015, to more than $17 billion for 2017, reaching $35 billion by 2019, and now generating $96.8 billion on an annual basis. This staggering growth has been driven by the expansion of AWS from 32 availability zones in 2015, to 52 availability zones in 2017, and now reaching 105 availability zones at present. In parallel, the company has launched thousands of new AWS services which has also fueled its expansion.

Microsoft Corporation’s Intelligent Cloud segment contains Azure, the second largest cloud service provider globally. Through Microsoft Azure, the company delivers a consistent hybrid cloud experience, developer productivi

ty, artificial intelligence (AI) capabilities, and security & compliance.

Microsoft Azure presently has 64 regions and 126 availability zones in operation. These regions and availability zones are distributed throughout the United States, Azure Government, Americas, Europe, Asia Pacific, as well as in the Middle East and Africa.

Over 300 physical Microsoft Azure data centers are located worldwide, which house computer servers, each fitted-out with independent power, cooling, and networking. The company connects this data center infrastructure with more than 175,000 miles of fiber lines across 140 countries.

Microsoft’s Intelligent Cloud revenue, which includes revenue from Azure, other cloud services, and server products, reached $25.9 billion for the latest quarter, an increase of 19% year-over-year. Therefore, on an annualized basis, Microsoft’s Intelligent Cloud revenue currently stands at $103.5 billion. However, Microsoft does not explicitly disclose Azure revenues, meaning that Azure is only a subset of total Intelligent Cloud revenue.

Google Cloud Platform (GCP), part of Alphabet Inc, is the third largest cloud service provider globally, providing enterprise-ready cloud services. GCP enables developers to build, test, and deploy applications on its distributed and scalable infrastructure, while utilizing the service’s capabilities in security, data management, analytics, and artificial intelligence (AI).

Google Cloud today has 40 regions and 121 availability zones in operation. These regions and availability zones are situated throughout the United States, Americas, Europe, Asia Pacific, as well as in the Middle East and Africa.

Alphabet Inc’s Google Cloud unit earns revenue from the fees it charges for its infrastructure, platform, and other services. For the latest quarter, Google Cloud generated $9.2 billion in revenue, an increase of 26% year-over-year. Therefore, on an annualized basis, Google Cloud produces $37 billion of revenue.

Oracle Corporation’s Cloud Services offerings include Oracle Cloud Software-as-a-Service (SaaS) and Oracle Cloud Infrastructure (OCI). Through OCI, the company is a cloud service provider, delivering infrastructure technologies as-a-service including compute, storage, and networking services.

Oracle Cloud presently has 48 regions and 58 availability zones in operation. These regions and availability zones are located throughout the United States, Canada, Europe, the Middle East, & Africa (EMEA), Latin America, and Asia Pacific. In addition, Oracle Cloud offers government cloud regions for the U.S. government, U.S. Department of Defense (DoD), and UK government, as well as two Sovereign regions for customers across the European Union (EU).