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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 (29th)
 

Mindshare comparison

As of July 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 15.7%, down from 21.9% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.5%, up 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 Bus15.7%
WSO2 Enterprise Integrator5.5%
Other78.8%
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

"We use IBM Integration Bus for document conversions."
"It is very straightforward. It is very user-friendly integration."
"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."
"REST API design and development support are useful. Building and exposing APIs using GUI API designer with editor makes implementation a breeze."
"The product is usually very easy to deploy."
"IBM is offering with the Integration Bus a very robust and stable solution."
"We have benefited by using this solution from the IAB, we have been able to use different delivery types."
"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."
"It was mostly easy to set up the product."
"While I am still exploring the solution, I've so far been pretty satisfied with it."
"WSO2 Enterprise Integrator may cost you about twenty-five thousand dollars annually per year compared to IBM Cloud Pak, which would cost you around one million dollars."
"The customer service executives are very responsive."
"The solution's customer service is good."
"The drag-and-drop features for connectors are very valuable."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"The most valuable aspect of the solution is the integration between core banking and other systems."
 

Cons

"The solution needs to improve it's security and its proactive notification of security issues."
"The monolithic architecture is an issue. Due to the fact that it's built on monolithic architecture, the solution is not very lightweight."
"The solution could improve by having built-in implementation and secure monitoring without the need for API Connect."
"The solution needs to simplify its documentation, such as the user and operation manuals, to make them even easier to understand."
"The memory footprint needs to be improved; having this solution on-prem is taking more memory and that memory footprint should be minimized."
"It would be better with more API management features. More micro-service and container-based support."
"Sometimes migration takes too long."
"The interface could be more user-friendly."
"You cannot include the validation of XPath."
"The integration capabilities need to be improved."
"The customization can be a bit difficult."
"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."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"If I have to buy software, then it becomes expensive for me."
"I would like to see better documentation for the open-source version."
 

Pricing and Cost Advice

"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."
"Support costs are high compared to the competition. Otherwise, the support is good."
"As customers, we always try to buy things as cheaply as possible. But the price for the IBM Integration Bus is fine. When we compare it to competitors, it's pretty much the same. However, there are a lot of open-source integration platforms coming to the market as well. So overall, the price is fine as far as licensed products are concerned."
"The pricing could be improved to make it more competitive."
"IBM Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"IBM Integration Bus is expensive."
"The price of the license could be cheaper."
"The maintenance and support of the product are very expensive."
"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."
"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."
"The open-source, unsupported version is available free of charge."
"It is a low-cost solution."
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Top Industries

By visitors reading reviews
Financial Services Firm
17%
Manufacturing Company
9%
Outsourcing Company
7%
Comms Service Provider
6%
Financial Services Firm
11%
Outsourcing Company
9%
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: June 2026.
907,731 professionals have used our research since 2012.