AWS Control Tower vs OpenNebula comparison

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AWS Control Tower

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Executive SummaryUpdated on Dec 17, 2024

OpenNebula and AWS Control Tower both compete in the cloud management sector. AWS Control Tower seems to have the upper hand due to its comprehensive service offering and integration within the AWS ecosystem.

Features: OpenNebula offers open-source customization and management of private and hybrid clouds with a focus on simplicity. It provides flexible user management, supports various hypervisors, and has a strong community for support. AWS Control Tower is known for its automation in setting up AWS accounts, management guardrails, and comprehensive management of multi-account environments.

Room for Improvement: OpenNebula could enhance its technical documentation and expand its integrations. Its reliance on community support might not suit enterprises needing immediate assistance. AWS Control Tower could improve in simplifying its cost structure and enhancing integration with non-AWS services. Fine-tuning its configuration processes to be more user-intuitive would also be beneficial.

Ease of Deployment and Customer Service: OpenNebula is easy to deploy and manage, suited for organizations seeking simplicity. Its community-based support might require more technical expertise. AWS Control Tower offers streamlined deployment with centralized management and comprehensive AWS customer support, making it suitable for enterprises requiring reliable service.

Pricing and ROI: OpenNebula presents an economical option with a potentially higher ROI for businesses minimizing upfront costs. AWS Control Tower involves higher initial investment due to its extensive features and enterprise support but provides strategic ROI through increased efficiency and reduced operational overhead for AWS-integrated users.

To learn more, read our detailed AWS Control Tower vs. OpenNebula Report (Updated: December 2025).

AWS Control Tower vs. OpenNebula

December 2025

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Review summaries and opinions

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

Categories and Ranking

AWS Control Tower

Ranking in Cloud Management

18th

Average Rating

8.6

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

OpenNebula

Ranking in Cloud Management

8th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of January 2026, in the Cloud Management category, the mindshare of AWS Control Tower is 1.5%, down from 1.8% compared to the previous year. The mindshare of OpenNebula is 3.7%, down from 8.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Management Market Share Distribution
Product	Market Share (%)
OpenNebula	3.7%
AWS Control Tower	1.5%
Other	94.8%

Cloud Management

Featured Reviews

Sharkrit Impat

Head of Platform Engineering at Ascend Group Co., Ltd.

Streamlines governance and security management but requires effort in managing hidden costs

I believe AWS Control Tower could be improved. I compare it with Huawei Cloud's enterprise project, which is a similar concept but different implementation. In Huawei Cloud, you partition in one single account, but in AWS, you have to separate many accounts. You end up with maybe 20 or 30 accounts if you try to separate. It has limitations; you pay a fixed amount for 15 accounts, but if you exceed that, you have to pay more. It could be useful for implementing a Cloud Center of Excellence (CCOE) for multiple organizations, but for one organization, I would advise against it; it is too much overhead and adds hidden costs. There are limitations on the Landing Zone feature as well. If we implement AWS Control Tower, we need to implement Landing Zone and the security policy, guardrails, and Account Factory; it is not one single product. Using another cloud's enterprise project, you can just create the project and manage it already. It requires some learning curve to get hands-on. For pricing and licensing of AWS Control Tower, it has hidden costs. The Control Tower itself does not cost much, but the child accounts created from AWS Control Tower add costs for checking all configurations, logging, and metrics.

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FOURES Jean-Philippe

Products Manager at a tech services company with 501-1,000 employees

Reliable, simple to manage, and offers great technical support

The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.

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Quotes from Members

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

Pros

"One of the standout advantages is the fine-grained control it offers in terms of permissions and privileges."

"I would rate the solution a 10 out of 10."

"It provides centralized solutions for all AWS accounts in one place, customized to meet the organization's specific needs."

"It offers automated recommendations for security and policies, creating a landing zone and providing a list of policies."

"The most intriguing feature is the automatic generation of user accounts. Leveraging Active Directory and global company settings, AWS Cloud Tower enables the creation of AWS user accounts based on job descriptions in Active Directory. This establishes a direct correlation between the user's name, job definition, and the corresponding rules applied to each account."

"AWS Control Tower helps companies save costs."

"There are two features in Control Tower which are the most valuable. One is the guardrails because it has preventive and detective guardrails."

"Compliance is the most valuable feature."

More AWS Control Tower pros

"What's best about OpenNebula that people like is that it's easy to deploy. It's also easy to manage. It's interesting because people choose OpenNebula over other solutions because of the ease of management."

"The service feature appeals most to us, thus it is the most valuable."

"OpenNebula is lightweight, stable, and easy to customize."

"It is quite easy to deploy."

"The ability to use it almost like a public cloud for an organization is a big asset, as it will create a value proposition and can control costs in a great way."

"For the entire data center, as a private cloud, I believe that user management, expert management, and the virtual data center is completely magic for the users."

"It's easy to integrate OpenNebula with our IT systems."

"The solution provides templates for configurations that can easily be exchanged to VMs."

More OpenNebula pros

Cons

"The sole drawback is its restriction to enable only one Control Tower."

"There aren't any additional features that I feel are missing. However, it's worth noting that Control Tower seems to function as a layer utilizing standard AWS products in the background. Occasionally, the interface may appear less streamlined, with changes in layout based on the underlying products being used. While this doesn't impact functionality, having a more standardized user interface, irrespective of the background products, could enhance the user experience."

"It would be beneficial if AWS offered the capability to seamlessly deploy your infrastructure to another region to ensure continuous availability and redundancy."

"It is essential to clarify that this isn't necessarily a drawback of the service, but having a clear and concise set of predefined guidelines from AWS for moving existing accounts under AWS Control Tower would be highly beneficial as it would simplify the process and make it more user-friendly."

"By making APIs and organizational units more centralized, it would be simpler to pinpoint the source of issues in case of a breach and would ultimately benefit everyone involved."

"The integration with other AWS functions has room for improvement."

"The tool's setup is very technical. Its pricing can be cheaper."

"The initial setup is complex."

More AWS Control Tower cons

"There are small things that are hard. For example, making sure that it is going to be installable on public clouds."

"As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today."

"It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet."

"The storage feature that they have is a bit confusing."

"Backup features are only available in the enterprise edition. The community version lacks a good solution for making backups."

"An area for improvement in OpenNebula is the number of features it has. The solution doesn't have that many cloud features compared to other solutions. You'd say, "Okay, simplicity over a rich feature list?" Some say, "No, I need a big machine or a cloud interface for my customers to manage resources. I don't have to go and do it for them." Some people do it that way, and it works, but I'd like to improve the limited features in OpenNebula."

"There are no payment gateways in OpenNebula."

"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."

More OpenNebula cons

Pricing and Cost Advice

"The pricing is efficient, not overly expensive but also not very cheap."

"The product's affordability depends on the value it brings to specific organizations."

"It is expensive but it is an investment in my opinion."

"It is cost-effective and the associated cost is quite minimal."

"The pricing structure is closely intertwined with the specifics of your environment and the billing strategy you employ."

"The cost is reasonable, but there are opportunities for improvement in terms of pricing for larger enterprises."

"It operates on a pay-as-you-go model, meaning we are charged only for the services we actively use within it."

"On a scale of one to ten, where one is a low price and ten is a high price, I rate the pricing an eight."

More AWS Control Tower pricing and cost advice

"We use the Community Edition, rather than the Enterprise Edition."

"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."

"OpenNebula gives good value for money."

"VRA is very expensive but OpenNebula is free."

"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."

"The solution is open source so is free."

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Financial Services Firm

11%

Manufacturing Company

Insurance Company

Computer Software Company

14%

Financial Services Firm

10%

University

10%

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	9
Midsize Enterprise	2
Large Enterprise	7

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	6
Large Enterprise	3

Questions from the Community

What do you like most about AWS Control Tower?

The most intriguing feature is the automatic generation of user accounts. Leveraging Active Directory and global company settings, AWS Cloud Tower enables the creation of AWS user accounts based on...

What is your experience regarding pricing and costs for AWS Control Tower?

Control Tower within the AWS Organization does not have a charge. It is free and does not incur additional charges.

What needs improvement with AWS Control Tower?

What do you like most about OpenNebula?

The live migration feature has been great and is something we use very often.

What needs improvement with OpenNebula?

The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...

What is your primary use case for OpenNebula?

Previously, we were using VMware, but recently, we've started using OpenNebula for cloud management. As a big cloud provider, it helps give customers increased control over their clusters. We use L...

Sangfor HCI - Hyper Converged Infrastructure vs AWS Control Tower

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Product Reports

Download AWS Control Tower product report

AWS Control Tower

January 2026

Download OpenNebula product report

January 2026

Overview

AWS Control Tower offers the easiest way to set up and govern a new, secure, multi-account AWS environment. It establishes a landing zone that is based on best-practices blueprints, and enables governance using guardrails you can choose from a pre-packaged list.

Amazon Web Services (AWS)

OpenNebula provides the most simple but feature-rich and flexible solution for the comprehensive management of virtualized data centers to enable private, public and hybrid IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT assets, protecting your investments, and avoiding vendor lock-in.

OpenNebula is a turnkey enterprise-ready solution that includes all the features needed to provide an on-premises (private) cloud offering, and to offer public cloud services.

Sample Customers

Expedia, Intuit, Royal Dutch Shell, Brooks Brothers

Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.