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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

"It is very straightforward. It is very user-friendly integration."
"It's easy to develop things, and it's easy to handle."
"REST API design and development support are useful. Building and exposing APIs using GUI API designer with editor makes implementation a breeze."
"Promotes the reuse of developed resources to more efficiently consume resources."
"IBM Integration Bus' most valuable features are its performance, fast and easy development, and easy support."
"Web interface, REST API for viewing services, admin, stats, and deployment are premium features, which makes IIB stand among its competition."
"IBM Integration Bus is flexible, easy to use, and easy to configure."
"The solution's features are all quite useful. We use all of them."
"The drag-and-drop features for connectors are very valuable."
"Currently, I find the configuration part quite valuable, where you can easily configure things."
"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."
"It was mostly easy to set up the product."
"It's a consolidated product. It works and it does its job pretty well."
"WSO2's analytics capability is good, considering the ELC support they provide."
"The customer service executives are very responsive."
"From the capabilities and functional possibility and anything else technical, it is a very well-done product, I have to say."
 

Cons

"The next versions are moving toward container use. It would be a shame to make the product highly complex just to support one pattern of deployment. It is my hope that IBM continues to focus on practical functionality that is simple and cost-effective."
"The memory footprint should be minimized."
"One drawback that I have found is that there are issues with using the Java connector."
"The tracing and debugging features are not up to date with more modern technology available."
"They could integrate AI technologies with the product. Additionally, ongoing developments and enhancements in integration technologies could be beneficial."
"Session management can sometimes hand forcing server reboots."
"I would like for them to make the training much easier."
"Technical support is something that should be better."
"You cannot include the validation of XPath."
"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."
"They should introduce better pricing for small companies."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
"I would like to see better documentation for the open-source version."
"The server is very specific and it is very difficult to get experience with it."
"The product's price is an area of concern where improvements are required."
"There are a lot of security settings that when you apply you have to re-apply again every time you modify a setting. It is something that really needs to be enhanced."
 

Pricing and Cost Advice

"IBM Integration Bus is expensive."
"IBM is expensive."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"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."
"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."
"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 price of the license could be cheaper."
"IBM Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
"The open-source, unsupported version is available free of charge."
"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 cost is better than IBM Cloud Pak."
"It is a low-cost solution."
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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.
881,515 professionals have used our research since 2012.