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Amazon AWS vs Microsoft Azure vs Oracle Cloud Infrastructure (OCI) comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.2
Amazon AWS offers cost-effective, scalable solutions with pay-as-you-go pricing, enabling quick deployment and significant financial benefits.
Sentiment score
6.1
Microsoft Azure is favored for reducing costs, offering flexible scalability, and enhancing service reliability while shifting expenses to operational.
Sentiment score
6.3
Oracle Cloud Infrastructure boosts ROI through cost reduction, with many clients seeing benefits within one to two years.
The value for money is good, and Microsoft Azure has positively impacted our operational costs.
IT Support Specialist at Sorbonne University Abu Dhabi
When we use Microsoft Azure, it provides enhanced security from our perspective, though I am not certain about the financial return on investment or benefits for our users as I do not have that information.
Head Of Security Management at Ipko Telecommunications
 

Customer Service

Sentiment score
6.8
Amazon AWS customer service is highly effective and responsive, with knowledgeable support and comprehensive documentation, enhancing user satisfaction.
Sentiment score
6.5
Microsoft Azure's support is responsive and knowledgeable, but speed and accessibility vary with the service level purchased.
Sentiment score
6.2
Oracle Cloud Infrastructure's support is considered good but inconsistent, with varying responses and room for improvement in escalation processes.
Reaching out to them and talking is different from receiving a complete solution to your problem.
Principal Consultant at a tech vendor with 10,001+ employees
We have a direct line to Amazon AWS, with premium support and AWS members located within the company.
Senior Machine Learning Engineer at sportsbet
Amazon AWS has good technical engineers available, making their customer service reliable.
Cloud Technical Program Manager at a tech vendor with 1,001-5,000 employees
Microsoft needs to engage L3 and L2 in support when specified in service tickets.
Snr. Infrastructure Architect (Data Centre) at LogicEra
We eventually get the resolution we seek.
Freelancer at a tech services company with 1,001-5,000 employees
I would rate their technical support a ten because we have various support channels available.
Solutions Architect at a tech vendor with 10,001+ employees
Oracle support is very friendly and provided free of cost.
Associate Director at LTI - Larsen & Toubro Infotech
 

Scalability Issues

Sentiment score
7.8
Amazon AWS offers exceptional scalability, enabling effortless resource expansion and efficient scaling to support diverse user needs globally.
Sentiment score
7.6
Microsoft Azure is highly rated for its scalable resource management, suitable for businesses of all sizes and workloads.
Sentiment score
7.3
Oracle Cloud Infrastructure offers scalable, flexible, and high-performance services with a pay-as-you-go model appreciated by enterprises.
The scalability of Amazon AWS is excellent.
Principal Consultant at a tech vendor with 10,001+ employees
Amazon AWS provides strong scalability features, but the scaling process could be made more straightforward.
Cloud Technical Program Manager at a tech vendor with 1,001-5,000 employees
When setting up resources, the maximum limit can go high or low, at which time instances are increased, which helps maintain latency standards.
Architect at ebzss
Microsoft Azure is not just one product; it is a platform with multiple products within Microsoft Azure, and I would say it is scalable and would rate it a nine.
Director at Apeiros Solutions
The scalability of Microsoft Azure is excellent for growth and adaptation, depending on company requirements.
Head Of Security Management at Ipko Telecommunications
It has different kinds of designs that allow for management and deployment in multi-zones, offering both scalable and non-scalable options.
Snr. Infrastructure Architect (Data Centre) at LogicEra
There are no issues with Oracle Cloud Infrastructure's support for scalability demands.
Associate Director at LTI - Larsen & Toubro Infotech
 

Stability Issues

Sentiment score
8.1
Amazon AWS is highly reliable, with strong performance and minimal outages, earning high satisfaction for robustness and stability.
Sentiment score
7.7
Microsoft Azure is generally stable with high uptime, though users note occasional issues and some prefer AWS for reliability.
Sentiment score
7.9
Oracle Cloud Infrastructure is valued for stability, performance, and uptime, comparable to AWS and Azure, despite occasional connectivity issues.
If I am spinning up any managed service from the console, sometimes it fails to start up, and there will be no information about why it failed.
Senior Machine Learning Engineer at sportsbet
We noticed a few critical servers went down due to a Microsoft Azure-end hardware issue.
Senior Associate at a consultancy with 10,001+ employees
We are now migrating clients without the zoning into mandatory multi-zone deployments, so if one zone goes down, their application and database remain live.
Snr. Infrastructure Architect (Data Centre) at LogicEra
Microsoft Azure is quite stable, but recent outages and security issues have slightly decreased my confidence.
Works at a energy/utilities company with 10,001+ employees
 

Room For Improvement

Amazon AWS users seek better cost management, integration, user interfaces, security, performance, support, and simplified billing and setup processes.
Azure users seek a user-friendly interface, better pricing, enhanced support, compatibility improvements, and additional customization with security enhancements.
Oracle Cloud users want improved support, documentation, integration, usability, pricing, availability, automation, AI, globalization, security, and performance.
Amazon AWS could improve its user interface to make it more user-friendly, especially for people who are not highly technical.
Cloud Technical Program Manager at a tech vendor with 1,001-5,000 employees
When using scripts for APIs to fetch data, they don't match the data exactly with the request.
Principal Consultant at a tech vendor with 10,001+ employees
If I create a Glue job, that will create S3 buckets and other resources that have cost implications, but once I clean up a Glue job, it does not delete the other accessory resources.
Senior Machine Learning Engineer at sportsbet
Recent outages and security issues are also a concern, causing a decrease in confidence, especially when partnering with third-party companies.
Works at a energy/utilities company with 10,001+ employees
The administrative side is suitable for technical people, but our finance and HR super users find it less user-friendly, as they prefer drag-and-drop features to build their own solutions without contacting IT.
IT Support Specialist at Sorbonne University Abu Dhabi
There is still room for improvement in terms of pricing.
Director at Apeiros Solutions
AWS services typically offer more flexibility to end users.
Associate Director at LTI - Larsen & Toubro Infotech
In Autonomous, for example, where I think an autonomous database should manage storage correctly on its own, my experience is that often we have many allocated storage spaces that are free, but it is impossible to reclaim.
DBA at a tech services company with 5,001-10,000 employees
 

Setup Cost

Amazon AWS offers flexible pricing with cost-effectiveness, but managing expenses can be complex compared to Azure or GCP.
Microsoft Azure's competitive pricing and flexible options attract users, despite concerns about long-term cost predictability and specific charges.
Oracle Cloud Infrastructure offers competitive pricing with potential savings, but costs can vary and reach up to $40,000 monthly.
After three to four years, if you are not managing it correctly, you will be paying more than an on-premise solution, which applies to all cloud providers, so you must regularly maintain and manage for efficiency.
Principal Consultant at a tech vendor with 10,001+ employees
Currently, Amazon AWS is known to be on the higher price range because popular and in-demand services often come at a premium.
Cloud Technical Program Manager at a tech vendor with 1,001-5,000 employees
Microsoft solutions might be cheaper than some services like AWS, but some solutions may be more expensive depending on the services compared.
Works at a energy/utilities company with 10,001+ employees
Copilot is expensive based on recent pricing for our POC.
IT Support Specialist at Sorbonne University Abu Dhabi
They have discounts and also provide promotions for a three-year reservation which comes with significant discounts on the infrastructure part.
Snr. Infrastructure Architect (Data Centre) at LogicEra
A 50% cost reduction compared to AWS was estimated.
Associate Director at LTI - Larsen & Toubro Infotech
 

Valuable Features

Amazon AWS provides scalable compute, flexible pricing, high security, and integration, ideal for building efficient applications with minimal infrastructure.
Microsoft Azure excels in scalability, integration, security, and cost-effectiveness, enhancing development and operational efficiency with robust support.
Oracle Cloud Infrastructure offers comprehensive features including scalability, security, integration, and cost-effective solutions with advanced AI support and automation.
Amazon AWS provides IAM features for user access management as well as KMS through key management service with private and public key encryption methodology.
Architect at ebzss
Amazon AWS offers flexibility and scalability.
Cloud Technical Program Manager at a tech vendor with 1,001-5,000 employees
One aspect I appreciate in Amazon AWS is their support team, which is excellent.
Principal Consultant at a tech vendor with 10,001+ employees
Power BI, another feature of Azure, is extremely elegant and has robust features that support forecasting using R and Python.
Works at a energy/utilities company with 10,001+ employees
If Microsoft gives a report, such as a server performance report in a detailed way, which shows what is consuming more CPU, memory, and disk IO, and network utilization during a particular time, it would be helpful to visualize that information.
Senior Associate at a consultancy with 10,001+ employees
What is very interesting in terms of scalability is the automatic possibilities to provision some new machines to be able to absorb the number of users we have in the system.
Technical Director / Market Evangelist at CAST Software
Applications using Oracle Database not only work seamlessly on Oracle Cloud Infrastructure (OCI) but also benefit from a 25% offset on Oracle Database licenses.
Associate Director at LTI - Larsen & Toubro Infotech
Oracle Cloud Infrastructure (OCI)'s cost management tools helped us create a map of the cost of the various objects and services.
DBA at a tech services company with 5,001-10,000 employees
 

Mindshare comparison

As of April 2026, in the Infrastructure as a Service Clouds (IaaS) category, the mindshare of Amazon AWS is 17.4%, up from 14.7% compared to the previous year. The mindshare of Microsoft Azure is 9.9%, down from 19.3% compared to the previous year. The mindshare of Oracle Cloud Infrastructure (OCI) is 4.9%, down from 8.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Infrastructure as a Service Clouds (IaaS) Mindshare Distribution
ProductMindshare (%)
Microsoft Azure9.9%
Amazon AWS17.4%
Oracle Cloud Infrastructure (OCI)4.9%
Other67.80000000000001%
Infrastructure as a Service Clouds (IaaS)
 

Featured Reviews

Asif  Meem - PeerSpot reviewer
Senior Machine Learning Engineer at sportsbet
Managed cloud services have helped accelerate experiments with flexible configuration options
Sometimes the costs associated with spinning up a service, especially managed services, have implications. For example, if I create a Glue job, that will create S3 buckets and other resources that have cost implications, but once I clean up a Glue job, it does not delete the other accessory resources. Sometimes, I have to go hunting for what resources Amazon AWS might have provisioned and how it is costing behind the scenes. It can be complex depending on your level of expertise. It is not as easy to get started, especially when it comes to secure practices. Amazon AWS is more hands-on than other platforms.
Syed Abid  - PeerSpot reviewer
Snr. Infrastructure Architect (Data Centre) at LogicEra
Versatile integrations and reliable customer satisfaction elevate cloud service experience
For Microsoft Azure improvement, they need to enhance their support system. The first level of support should be improved in terms of quality and response time. They need more technical support at the first level, as there are currently only one or two technical people among five to ten staff members at this level. They should ensure that the first level support is more technical because we normally provide services to technical users ourselves. When an issue arises, it usually escalates to the second or third level. When facing first level support, they may have limited knowledge and only collect screenshots to forward to their seniors. They should ensure that the first level support is aligned with L2 and L3 to better assist us, especially since we mention in the ticket that our issues are related to specific problems and require that sort of support.
Labhesh Hase - PeerSpot reviewer
Associate Director at LTI - Larsen & Toubro Infotech
Cost-effectiveness and pricing consistency support diverse high-intensity applications
The services of Oracle Cloud Infrastructure (OCI) are quite competent when compared to AWS Cloud, and they are also lower in cost. We use compute, storage, and network services. A notable feature is Oracle Cloud Infrastructure's consistent global pricing, which is advantageous. Furthermore, applications using Oracle Database not only work seamlessly on Oracle Cloud Infrastructure (OCI) but also benefit from a 25% offset on Oracle Database licenses.
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Comparison Review

it_user8586 - PeerSpot reviewer
Engineer at a tech consulting company with 51-200 employees
Aug 14, 2013
Amazon vs Rackspace vs Microsoft vs Google: Cloud Hosting Services Comparison
Amazon Web Services, Rackspace OpenStack, Microsoft Windows Azure and Google are the major cloud hosting and storage service providers. Athough Amazon is top of them and is oldest in cloud market, Rackspace, Microsoft and Google are giving tough competition to each other and to Amazon also for…
 

Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
9%
Computer Software Company
7%
Educational Organization
6%
Financial Services Firm
11%
Manufacturing Company
11%
Computer Software Company
7%
University
6%
Financial Services Firm
9%
Manufacturing Company
9%
Computer Software Company
9%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business131
Midsize Enterprise48
Large Enterprise114
By reviewers
Company SizeCount
Small Business140
Midsize Enterprise54
Large Enterprise149
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise20
Large Enterprise54
 

Questions from the Community

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What do you like most about Oracle Cloud Infrastructure Registry?
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What needs improvement with Oracle Cloud Infrastructure Registry?
I have not used Oracle Cloud Infrastructure (OCI)'s networking solutions today. I studied it somewhat, but it is not ...
 

Also Known As

Amazon Web Services, AWS
Windows Azure, Azure, MS Azure
Oracle Cloud Infrastructure Registry, Oracle OCIR, OCIR, Oracle Cloud, Oracle Cloud Platform, Oracle Data Cloud
 

Overview

 

Sample Customers

Pinterest, General Electric, Pfizer, Netflix, and Nasdaq.
BMW, Toyota, easyJet, NBC Sports, HarperCollins, Aviva, TalkTalk Business, Avanade, and Telenor.
Kenya Airways, Cell, Panasonic, Frontera, M&C Saatchi, Lumentum, WA
Find out what your peers are saying about Microsoft, Amazon Web Services (AWS), Akamai and others in Infrastructure as a Service Clouds (IaaS). Updated: March 2026.
885,667 professionals have used our research since 2012.