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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)
6th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
Data Integration (28th)
 

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 WSO2 Enterprise Integrator is 5.3%, down from 5.4% 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%
WSO2 Enterprise Integrator5.3%
Other78.6%
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

"The most valuable feature is the security."
"It is a stable solution."
"This is a good solution from a technical and operational point of view, but they should really remove this technically complicated license controlling."
"The solution addresses all of our middleware needs in respect of transformation, parsing, security and stability; everything really."
"One of the most valuable features is how seamless and easy to use this solution is. This is a fantastic solution and a very measured product."
"I consider the solution to be one of the most stable in the market."
"IBM Integration Bus is a very strong tool."
"We've been pleased with the solution's reliability; it's stable, it doesn't crash or freeze, I don't recall facing any bugs or glitches, and it just works well all the time."
"The customer service executives are very responsive."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"The solution basically conforms to our standards."
"The solution's customer service is good."
"While I am still exploring the solution, I've so far been pretty satisfied with it."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"In my opinion, the most valuable aspect of this solution is its extensive range of adaptors and connectors. This feature holds significant importance and provides great value to users."
"From the capabilities and functional possibility and anything else technical, it is a very well-done product, I have to say."
 

Cons

"The price could be better. It would also be better if they simplified the code."
"One drawback that I have found is that there are issues with using the Java connector."
"I contacted technical support, but I wasn't able to get the correct answer. I feel I wasn't given a good response."
"I would not say that IBM Integration Bus is not a good product, I would point out that it is limited to its own infrastructure."
"To scale virtically, is difficult."
"I would like for them to make the training much easier."
"IBM Integration Bus could improve by having a more lightweight installation. Additionally, automation could improve."
"This solution would benefit from improvements to the configuration interface. It is hard to understand, and one small change can have a huge impact."
"I would like to see better documentation for the open-source version."
"Most of the issues we run into with the WSO2 Enterprise Integrator deal with customizations."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
"The customization can be a bit difficult."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"They should release upgrades more frequently."
"The integration capabilities need to be improved."
"The scalability is not strong. If you want to scale it you have to install multiple servers."
 

Pricing and Cost Advice

"The price of this product could be lower."
"IBM Integration Bus is expensive."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"IBM is expensive."
"IBM Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"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 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."
"The maintenance and support of the product are very expensive."
"It is a low-cost solution."
"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 open-source, unsupported version is available free of charge."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
"The cost is better than IBM Cloud Pak."
"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Manufacturing Company
8%
Outsourcing Company
8%
Construction Company
6%
Financial Services Firm
10%
Outsourcing Company
10%
Construction Company
8%
Comms Service Provider
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: August 2026.
908,858 professionals have used our research since 2012.