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IBM Integration Bus vs OpenESB comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 3, 2025

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

IBM Integration Bus
Ranking in Enterprise Service Bus (ESB)
2nd
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
70
Ranking in other categories
No ranking in other categories
OpenESB
Ranking in Enterprise Service Bus (ESB)
14th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.1%, down from 21.8% compared to the previous year. The mindshare of OpenESB is 2.8%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
IBM Integration Bus16.1%
OpenESB2.8%
Other81.1%
Enterprise Service Bus (ESB)
 

Featured Reviews

RA
Associate Consultant at MindCraft Software Pvt. Ltd.
Efficient data transformation and seamless integration drive successful deployments
As for improvements in IBM Integration Bus, we are getting another feature of the retry mechanism now. Version 8.13 was upgraded, and we started using the retry mechanism itself, and we are using nodes in the development level. They are improving one of the nodes such as the HTTP request node, implementing the indirect retry mechanism itself, and we are getting new features.
PP
Integration Architect at Pymma consulting
Easily define choreography and orchestration with this process-oriented solution
We provide contracted services for our customers that include coordinating with providers and implementing the solution.  A current project includes using the solution to deploy 200 microservices.  The process-oriented solution allows you to define choreography and orchestration. This feature…

Quotes from Members

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

Pros

"IBM Integration Bus's best feature is integration."
"There are three elements that make IBM Integration Bus very important for our organization's payroll systems which are the solution's high scalability, performance, and reliability."
"It allows us to avoid the need for consumers to understand multiple API protocols and security arrangements, and in some circumstances can reduce the impact of systems being unavailable."
"The most valuable thing is the loose coupling and making the change in only one stack of the ESB layer or the middleware layer, which helps in big projects and when we have multiple channels calling back at the same time."
"IBM Integration Bus is a very good solution and they have come a long way with improvements over the years."
"We can have multiple endpoints, and we can integrate different applications from different platforms. In a large-scale enterprise setup, it becomes so easy to establish communication between applications. You can connect an application to other applications, other legacy applications, and databases. You can also connect with those applications that are in the cloud. You can connect with other well-known applications, such as Salesforce, SAP, and Workday, by using IBM Integration Bus."
"The most valuable feature is the API integration."
"The interface is quite stable."
"One of our clients is a signature company and developed on a classic Java enterprise application using OpenESB, and in one year they saved £20,000,000 on development and maintenance."
"The process-oriented solution allows you to define choreography and orchestration."
"The core is very stable."
"ESL Gaming used OpenESB for its scalability and processes 1 billion of messages daily with a large configuration deployed on a private cloud."
"One of the most valuable features is being able to implement business processes while keeping track of the design from BPMN to a BPEL Implementation."
"OpenESB pushes the organization to clearly define service boundaries and interfaces. So it motives the business and the development teams to clearly define their business services and processes they want to implement. OpenESB supports fine and coarse-grain granularity for the services and supports top-down and bottom-up approaches for the services, processes definition, and composition."
"Millions of people were connecting every month on the system and there were no issues."
 

Cons

"The memory footprint needs to be improved; having this solution on-prem is taking more memory and that memory footprint should be minimized."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"This solution would benefit from improvements to the configuration interface. It is hard to understand, and one small change can have a huge impact."
"The solution’s pricing could be improved."
"The password settings need improvement."
"IBM Integration Bus can improve by implementing no-code or drag-and-drop adapters development, similar to what is available in Red Hat."
"Regarding the pricing setup cost and licensing for IBM Integration Bus, I believe it is expensive. The IBM tool is now expensive because they moved to the cloud."
"The solution needs instruction or guidance."
"Regarding its management, a web console being able to synchronize distributed instances would be great."
"Cloud deployment is weak and needs to be improved."
"The documentation of the product must be improved. It could be tricky to find the right documentation on a topic since the documentation is spread in many places. I advise the new joiner to contact the community to get entry points and additional documentation. Tutorial and Video must be present to take up the product."
"The documentation needs to be better."
"The Studio is a good tool based on NetBeans, but some of its features have to be improved, liked local schemas management."
"The documentation needs to be better — maybe they could add more accurate tutorials."
 

Pricing and Cost Advice

"IBM Integration Bus is expensive."
"The licensing model of IBM Integration Bus is good. It's a yearly subscription. However, the price is depending on the model that you choose. If it's a Cloud version, then you can pay per month or you can pay it annually upfront. There are three-year options available, but it depends on what deployment you have."
"IBM provides a quite complicated licensing model."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"Support costs are high compared to the competition. Otherwise, the support is good."
"Pricing is on par with its competition."
"The maintenance and support of the product are very expensive."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"The Community Edition is a full product you can use in production, it does not have limitations like other alternatives."
"There are two versions. The first is the community version, which is free and contains the last part of the feature, but if you want to get the Enterprise version, you'll have to pay €60,000 which covers support and two instances on production."
"The cost for the prediction instrument is high because it is charged per instances based on prediction, but the rest of the solution is free."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Manufacturing Company
8%
Outsourcing Company
7%
Construction Company
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise17
Large Enterprise47
No data available
 

Questions from the Community

Migration from IBM Integration Bus to Mulesoft ESB for a large enterprise tech services company
I was previously part of the Oracle SOA/OSB development team. In my current capacity I architected solutions using MuleSoft Anypoint Platform on cloud / on-premises and hybrid modes and on PCE/RTF ...
IBM Integration Bus vs Mule ESB - which to choose?
Our team ran a comparison of IBM’s Integration Bus vs. Mule ESB in order to determine what sort of ESB software was the best fit for our organization. Ultimately we decided to choose IBM Integratio...
What is your experience regarding pricing and costs for IBM Integration Bus?
Regarding the pricing setup cost and licensing for IBM Integration Bus, I believe it is expensive. The IBM tool is now expensive because they moved to the cloud. I am not sure about the previous co...
Ask a question
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Also Known As

IBM WebSphere ESB
No data available
 

Overview

 

Sample Customers

Salesbox, €sterreichische Bundesbahnen (€BB), Road Buddy, Swiss Federal Railways, Electricity Supply Board, The Hartree Centre, ESB Networks
Information Not Available
Find out what your peers are saying about IBM Integration Bus vs. OpenESB and other solutions. Updated: August 2026.
908,800 professionals have used our research since 2012.