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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 (28th)
 

Mindshare comparison

As of June 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 15.5%, down from 22.1% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.7%, 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 Bus15.5%
WSO2 Enterprise Integrator5.7%
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

"The solution has enhanced data processing capabilities by allowing efficient data integration and transformation."
"Yes IIB help us to shape up our organization in service oriented architecture."
"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 solution is very stable; we haven't found any bugs or glitches, there haven't been crashes, and it's quite reliable."
"IBM Integration Bus is a very good solution and they have come a long way with improvements over the years."
"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 has a variety of valuable features: the ESB characteristics are great, the transformation, protocol bridging and routing are great, the list of features on offer are both useful and actionable, and the cost is pretty cheap compared to what else is available in the market."
"Easy to understand documentation with a huge list of examples and tutorials."
"The installation process is easy."
"WSO2's analytics capability is good, considering the ELC support they provide."
"Currently, I find the configuration part quite valuable, where you can easily configure things."
"The drag-and-drop features for connectors are very valuable."
"The solution basically conforms to our standards."
"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."
"The learning curve for this solution is very good."
 

Cons

"Its documentation is currently lacking. We have different environments where we use our configuration services, but we are not able to find documentation about how to deploy the local code to the server and how to set it up on a server level. I would like more documents from IBM that explain which variables should be in your machine while building a project, and when you deploy the code into the server, what should be their values. There are some variable values. I could not find such documentation. While working on a project, I developed the code on a local machine, and while deploying the code to our test environment, I made a couple of mistakes. We had to change some values at the server level, but we couldn't find any documentation regarding this, which made the task difficult."
"Its licensing or subscription model should be improved for more flexible adoption. There should also be more ease of use."
"We have to stop the integration server to start the debugging process."
"It would be better with more API management features. More micro-service and container-based support."
"The solution needs to simplify its documentation, such as the user and operation manuals, to make them even easier to understand."
"The tracing and debugging features are not up to date with more modern technology available."
"The user interface could be improved in a future release."
"IBM Integration Bus isn't particularly user-friendly and has a big learning curve."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
"Most of the issues we run into with the WSO2 Enterprise Integrator deal with customizations."
"The scalability is not strong. If you want to scale it you have to install multiple servers."
"One of the reasons that we are looking for a replacement is their way of defining integration. The language of the XML structures that I use to describe the integrations are not that standard, and it's not easy to find people who are familiar with this approach."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
"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."
"They should release upgrades more frequently."
 

Pricing and Cost Advice

"Pricing is on par with its competition."
"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."
"IBM Integration Bus is expensive."
"IBM is expensive."
"It is a highly-priced solution."
"The price of the license could be cheaper."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"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 solution costs about 20,000 or 30,000 euros per year, per instance."
"The pricing of WSO2 Enterprise Integrator for enterprise subscriptions can be considered expensive, especially from the perspective of someone who prefers open-source software."
"It is a low-cost solution."
"The cost is better than IBM Cloud Pak."
"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
9%
Comms Service Provider
6%
Computer Software Company
6%
Financial Services Firm
11%
Comms Service Provider
8%
Construction Company
6%
Manufacturing 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 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.
900,125 professionals have used our research since 2012.