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Amazon AWS vs Microsoft Azure vs NTT Cloud 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:
 

Mindshare comparison

As of October 2025, in the Infrastructure as a Service Clouds (IaaS) category, the mindshare of Amazon AWS is 16.6%, down from 19.0% compared to the previous year. The mindshare of Microsoft Azure is 14.9%, down from 18.2% compared to the previous year. The mindshare of NTT Cloud is 0.8%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Infrastructure as a Service Clouds (IaaS) Market Share Distribution
ProductMarket Share (%)
Microsoft Azure14.9%
Amazon AWS16.6%
NTT Cloud0.8%
Other67.7%
Infrastructure as a Service Clouds (IaaS)
 

Featured Reviews

Asif  Meem - PeerSpot reviewer
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
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.
Famir Shah - PeerSpot reviewer
Performance and availability of services need improvement
NTT Cloud needs to analyze feature offerings from AWS and Azure. Additionally, they should do marketing and be more vocal about the services. They should further ensure the availability of the services as well. I rate NTT Cloud a three out of ten. In comparison, AWS and Azure are easier to fit into the environment in terms of reliability.

Quotes from Members

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

Pros

"With the pay-as-you-go model, we don't have to predict future IT needs. We can just scale up as we want. That helps with a lot of agility in deploying stuff in our IT infrastructure."
"It is easy to spin up resources."
"It is very easy to set up. It is also easy to use. It has a lot of services and integrations. We've been able to integrate whatever we need until now."
"The scalability of the product is the solution's most valuable feature."
"Amazon AWS is easy to use and in the past two years, I've never had any issues with scalability or stability."
"Its scalability is powerful. We are providing services for people to schedule an appointment for the vaccine and for COVID testing to see whether they are positive or negative. In one night, we can have 240,000 people in one minute to schedule an appointment. I am very happy with the scalability."
"The most valuable features I have found are the Database Migration Service (DMS) for monitoring the host and routing, Route 53, and EC2 tools. The DMS is not available in any other solution that I am aware of. They have a very flexible and professional solution."
"The documentation is very good."
"There are many different components such as SaaS, PaaS, and API so every month they are releasing a few hundred new features."
"The most valuable feature of this solution is the ease of use."
"The benefit of this integration in Microsoft Azure is that it is very flexible and beneficial to users, bridging internal integration, all kinds of applications, databases, and services such as Entra and other tools."
"It was easy to deploy our applications on it."
"We are using Microsoft Azure because our organization uses a lot of Microsoft solutions. We have used Microsoft technology for a long time and we have internal engineers with great capability that understand the technology. This is why Azure is the best for us."
"Microsoft Azure is an optimized solution when we compare it to any other particular cloud solution."
"The best feature in Microsoft Azure is that I don't have to change computers. I don't have to upgrade or if something breaks or a hard drive crashes. The lack of a physical aspect is the major feature for me."
"The solution provides multiple well integrated services which happen to work together seamlessly and provide flexibility and scalability for use cases all around the industry."
"The initial setup process is more accessible than one of its competitors."
"The pricing and services that surround the solution are great. For example, if we need to find a partner in a country where they do not have a cloud, they will help us find that partner. Solutions such as Amazon and Oracle do not offer this level of service."
 

Cons

"Like anything, Amazon AWS has room for improvement, but it's not bad."
"Amazon AWS could improve by being more secure and adding more features."
"There is room for improvement in pricing."
"It would be ideal if they could provide automatic health reports. That way, I would be able to understand at a glance the state of my services at any given time."
"The customization could be improved."
"Amazon tools are for more mature DevOps. The process and the Dev is very good, but it doesn't compare to the ease of using the Google Cloud Platform."
"Our API Management solution is integrated with Lambda, and last year, we had an issue while upgrading Lambda from version 8.0 to version 10. It seemed like Lambda runtime was changed by AWS, and there was a bug that caused the downtime. The loading of the dashboard is slow. It could be because I am located in China."
"It works very well with open-source solutions like Java, but not with .NET technologies."
"Lacks flexibility in terms of storage or resource allocation."
"Microsoft Azure can be pretty advanced and difficult to understand. I would like it to be simplified. The licensing especially needs to be simplified."
"The solution is less mature than AWS."
"We have faced some challenges trying to deploy a new ESP application."
"Microsoft's technical support could be improved."
"The product is not user-friendly."
"They should create integrations with more platforms."
"Azure does not handle scalability as well as its competitors. Sometimes a 10 percent increase in a server with 20 percent of CPU usage pushes the server up to 100 percent load, and you start having performance issues."
"NTT Cloud’s performance could be better."
"The solution could use more advanced monitoring."
 

Pricing and Cost Advice

"Billing for cloud services can be difficult at times."
"It is comparable if you add in the price structure to an on-prem solution."
"For the initial 12 months, the solution is reasonably priced. On enterprise license contracts where you negotiate, have been reasonable too."
"The price is good and licensing fees are paid on a monthly basis."
"I rate the tool's pricing a six to seven out of ten."
"The pricing depends on the workload. For example, if your workload involves Windows technologies, AWS may not be the most cost-effective option. In that case, you might be better off with Azure."
"Amazon AWS is on the cheaper side, as their pricing is more competitive. There are no additional costs besides the license. However, Azure sells Microsoft licenses, so they have an advantage."
"The prices are a bit high."
"Microsoft Azure overall is an expensive solution."
"Pricing is very difficult to guesstimate. With so many a la carte options and individual pricing it can be a hassle to understand."
"Azure is cheaper than solutions from other cloud vendors like AWS or Google."
"The subscription models can be confusing and it would be beneficial for them to simplify them. We are on an annual subscription."
"The pricing is very competitive."
"The cost is more or less the same across all cloud service providers."
"We are on a monthly subscription for Microsoft Azure and the cost is more expensive than some of the competitors, such as Amazon AWS. They should be more competitive with other solutions."
"Price could always be cheaper. Its licensing and usage aren't always cheap. We pay monthly."
"I rate the product’s pricing a four out of ten."
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Comparison Review

it_user8586 - PeerSpot reviewer
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
16%
Computer Software Company
11%
Manufacturing Company
9%
University
7%
Financial Services Firm
13%
Manufacturing Company
11%
Computer Software Company
10%
University
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business131
Midsize Enterprise48
Large Enterprise112
By reviewers
Company SizeCount
Small Business140
Midsize Enterprise53
Large Enterprise148
No data available
 

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Also Known As

Amazon Web Services, AWS
Windows Azure, Azure, MS Azure
OpSource IaaS Cloud, NTT IaaS Cloud
 

Overview

 

Sample Customers

Pinterest, General Electric, Pfizer, Netflix, and Nasdaq.
BMW, Toyota, easyJet, NBC Sports, HarperCollins, Aviva, TalkTalk Business, Avanade, and Telenor.
Dai Nippon Printing Co. Ltd., DNP Information Systems Co. Ltd., Independent Data Services (Asia) Sdn. Bhd., Toshiba Corporation
Find out what your peers are saying about Microsoft, Amazon Web Services (AWS), Akamai and others in Infrastructure as a Service Clouds (IaaS). Updated: September 2025.
869,771 professionals have used our research since 2012.