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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)
1st
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 (31st)
 

Mindshare comparison

As of February 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.7%, down from 22.6% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.3%, up from 4.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Market Share Distribution
ProductMarket Share (%)
IBM Integration Bus16.7%
WSO2 Enterprise Integrator6.3%
Other77.0%
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 solution is stable and can scale relatively easily."
"The most valuable feature is the security."
"like the API lead integration, which is more focused, and I also like real-time integration."
"I have found IBM Integration Bus is very useful because it can integrate multiple backend applications."
"The product helps efficiently work with different connectors from different back-end systems."
"I recommend it for large enterprises but only for specific use cases. You need to have a relatively mature integration practice in your organization to leverage its capabilities fully."
"The most valuable features of the IBM Integration Bus are flexibility. It's also an alternative for integrating it with other projects, which we are not ready at this time to do, such as switching to tunnels. The tunnels would be used with other partners to make sure everything is secured."
"The message queue feature is very valuable."
"The customer service executives are very responsive."
"It's a consolidated product. It works and it does its job pretty well."
"The solution's technical support is very knowledgeable."
"I like the user-friendly system and development of the service-oriented architecture."
"The drag-and-drop features for connectors are very valuable."
"Currently, I find the configuration part quite valuable, where you can easily configure things."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"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."
 

Cons

"IBM Integration Bus isn't particularly user-friendly and has a big learning curve."
"I would like to see more metered rest and API support. IBM is already working on it on Version 11, but it still needs improvement."
"One drawback that I have found is that there are issues with using the Java connector."
"IBM Integration Bus can improve JSON Schema validations. We don't have any kind of nodes that can support that kind of validation. If we want to containerize it by means of the docker's containers in the clouds, we are not able to manage it very well."
"Performance can be an issue sometimes. The tool occasionally crashes due to memory-related problems. We've reported these issues to IBM, and they are actively working on improving the tooling experience."
"IBM Integration Bus could be easier to manage, but this is true of all vendors. It doesn't always do what it says on the box."
"I think security should be more simplified."
"Storage capacity of the product should be addressed."
"They should introduce better pricing for small companies."
"You cannot include the validation of XPath."
"The product's price is an area of concern where improvements are required."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"The customization can be a bit difficult."
"The setup can be difficult for those not familiar with the solution."
"The main issue with the product is pricing. It uses core-based pricing for WSO2 Enterprise Integrator and API Manager. It would be best if you had APIM by default. It provides many connectors for easy integration with third-party systems."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
 

Pricing and Cost Advice

"The pricing could be improved to make it more competitive."
"IBM is expensive."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"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."
"The price of the IBM Integration Bus is expensive. If you compare the price to the cloud version you can purchase what you need but the on-premise version price is flat."
"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."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"The open-source, unsupported version is available free of charge."
"The cost is better than IBM Cloud Pak."
"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 pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
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Top Industries

By visitors reading reviews
Financial Services Firm
20%
Computer Software Company
9%
Manufacturing Company
8%
Insurance Company
6%
Financial Services Firm
11%
Comms Service Provider
8%
Computer Software Company
7%
Insurance Company
6%
 

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 do you like most about IBM Integration Bus?
The message queue, like, message queue connectors. Then they have a built in connectors for most of the systems, like SAP, oracle database, and this Civil connector is there. Of course, we have thi...
What do you like most about WSO2 Enterprise Integrator?
WSO2's analytics capability is good, considering the ELC support they provide.
What is your experience regarding pricing and costs for WSO2 Enterprise Integrator?
The product has reasonable and competitive pricing for enterprise customers. It is expensive for small businesses especially. They are using the open-source solution, and they find it expensive sin...
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 ...
 

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: February 2026.
881,733 professionals have used our research since 2012.