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IBM Integration Bus vs OpenESB comparison

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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 October 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.3%, down from 20.5% compared to the previous year. The mindshare of OpenESB is 2.8%, up from 1.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
IBM Integration Bus16.3%
OpenESB2.8%
Other80.9%
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

"The most valuable feature is the security."
"It is user-friendly and a value-added tool for banks and other verticals."
"Web interface, REST API for viewing services, admin, stats, and deployment are premium features, which makes IIB stand among its competition."
"It's stable across multiple platforms and across multiple applications."
"The product helps efficiently work with different connectors from different back-end systems."
"I have rated IBM Integration Bus a 10 out of 10."
"Promotes the reuse of developed resources to more efficiently consume resources."
"IBM support is fantastic and quick."
"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."
"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 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."
"Millions of people were connecting every month on the system and there were no issues."
"The process-oriented solution allows you to define choreography and orchestration."
"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."
"The core is very stable."
 

Cons

"We used a third-party vendor, who help us install the solution and it was not easy."
"Development toolkit (based on Eclipse) should be improved in terms of responsiveness."
"The price could be better. It would also be better if they simplified the code."
"The solution could improve by having built-in implementation and secure monitoring without the need for API Connect."
"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."
"It provides all the features that are required for day-to-day work. So far, I haven't seen any major issues that impact our work. I have been told that IBM App Connect Enterprise, which is the next version of IIB, is really good. It is better than IIB, and it gives you more coverage in terms of application integration."
"I would like to be able to run and install this solution on different platforms and using containers and using modern micro-service and cloud environments."
"IBM provides a quite complicated licensing model."
"Cloud deployment is weak and needs to be improved."
"Regarding its management, a web console being able to synchronize distributed instances would be great."
"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 — maybe they could add more accurate tutorials."
"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."
 

Pricing and Cost Advice

"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 Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"Our licensing is based on a five-year contract, and as far as I know, there are no costs in addition to the standard licensing fee."
"The pricing could be improved to make it more competitive."
"Pricing is on par with its competition."
"The price is reasonable considering the features we receive."
"The price of the license could be cheaper."
"For small companies, First of all, there are a lot of free products that could be used for integration. It can use the cloud or new implementation in the past. But if the tool is IBM, the official box in your company, you can make your submission and also publish the cloud to the work file. But let’s say, if you are working with premises, then you have to buy a reasonable main full support and gain experience with your product."
"The Community Edition is a full product you can use in production, it does not have limitations like other alternatives."
"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."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Outsourcing Company
10%
Manufacturing Company
9%
Comms Service Provider
7%
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: September 2026.
915,287 professionals have used our research since 2012.