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IBM Integration Bus vs WSO2 Enterprise Integrator 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
WSO2 Enterprise Integrator
Ranking in Enterprise Service Bus (ESB)
7th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
Data Integration (29th)
 

Mindshare comparison

As of May 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 15.4%, down from 22.0% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.1%, up from 5.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
IBM Integration Bus15.4%
WSO2 Enterprise Integrator6.1%
Other78.5%
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.
AC
Technical director at Cremete
Effective data transformation and integration in complex environments with high functionality
Something that could be improved in WSO2 Enterprise Integrator is that the problem is not a lack of capability or functionalities. The problem is that it is a very complex environment. To put your hand on this environment is a very demanding task. This is the real problem. The problem is not about the product, but about the complexity to manage, to configure, to decide what to do. I have some experience using SAP R/3. It seems to me something similar. When you have to configure a situation with a client, especially for a client not in an industrial sector, but in a service sector, it is quite usual that you are in trouble for some reason. This is always the story that I found in the implementations I have done. Maybe there are only three or four big problems, in some other cases there are more than that, but this is the situation usually. For WSO2 Enterprise Integrator, not the same, but I must say it is quite often there is a need to put together some pieces and make it work in a coordinated way.

Quotes from Members

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

Pros

"I consider the solution to be one of the most stable in the market, in comparison with others such as Oracle and this assessment I maintain on an ongoing basis."
"The Aspera feature for high-speed transfer is highly effective."
"The product is usually very easy to deploy."
"The most valuable feature is that it's robust and its time to market is very short."
"The system's stability is the most valuable feature."
"The biggest advantage of this solution is that it is very easy to learn, and very easy to build applications."
"I have found the inbound and outbound adapter confirmations valuable."
"The most valuable thing is the loose coupling and making the change in only one stack of the ESB layer or the middleware layer."
"The solution basically conforms to our standards."
"The solution's customer service is good."
"The learning curve for this solution is very good."
"The most valuable aspect of the solution is the integration between core banking and other systems."
"It's a consolidated product. It works and it does its job pretty well."
"The customer service executives are very responsive."
"The stability is excellent."
"The learning curve for this solution is very good."
 

Cons

"The tracing and debugging features are not up to date with more modern technology available."
"I believe there is room for improvement in the pricing structure to make it more accessible."
"They could integrate AI technologies with the product. Additionally, ongoing developments and enhancements in integration technologies could be beneficial."
"Migrating to this solution is complex and it would be helpful if they had a way to convert existing integrations."
"The version of the technology and current knowledge is a bit outdated."
"We used a third-party vendor, who help us install the solution and it was not easy."
"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."
"The solution’s pricing could be improved."
"You cannot include the validation of XPath."
"The customization can be a bit difficult."
"The setup can be difficult for those not familiar with the solution."
"The product's price is an area of concern where improvements are required."
"They should release upgrades more frequently."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"The server is very specific and it is very difficult to get experience with it."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
 

Pricing and Cost Advice

"IBM Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"The solution requires a license and is very expensive here in India."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"It is not cheap. It has its cost. It is one of the high-cost solutions."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"The pricing could be improved to make it more competitive."
"I generally do not get involved in the licensing or pricing because I'm a hardcore technical guy, but I'm aware of the fact that IBM is highly expensive, so not everybody can afford it. All the products are licensed."
"Pricing is on par with its competition."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
"I rate the product price a six on a scale of one to ten, where one is low price and ten is high price."
"The cost is better than IBM Cloud Pak."
"It is a low-cost solution."
"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
"The open-source, unsupported version is available free of charge."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Manufacturing Company
8%
Computer Software Company
6%
Comms Service Provider
5%
Financial Services Firm
13%
Comms Service Provider
8%
Construction Company
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise17
Large Enterprise47
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise11
 

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...
What needs improvement with WSO2 Enterprise Integrator?
Something that could be improved in WSO2 Enterprise Integrator is that the problem is not a lack of capability or functionalities. The problem is that it is a very complex environment. To put your ...
What is your primary use case for WSO2 Enterprise Integrator?
A typical use case for WSO2 Enterprise Integrator is when I am in an interoperability environment with healthcare facilities and I have to put together a lot of applications that share some HL7 mes...
What advice do you have for others considering WSO2 Enterprise Integrator?
For simpler tasks or simpler use cases, we avoid using WSO2 Enterprise Integrator because it is quite complex. So it is easier to manage some more simple solutions than that. WSO2 Enterprise Integr...
 

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
West
Find out what your peers are saying about IBM Integration Bus vs. WSO2 Enterprise Integrator and other solutions. Updated: April 2026.
892,943 professionals have used our research since 2012.