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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 (29th)
 

Mindshare comparison

As of April 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 15.9%, down from 22.1% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.3%, up from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
IBM Integration Bus15.9%
WSO2 Enterprise Integrator6.3%
Other77.8%
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

"IBM Integration Bus has a complete set of tools that are implemented between rules when it comes to run time, but it's not easy to understand."
"The most valuable feature is the security."
"We can easily and quickly create and integrate applications with the help of built-in nodes, so we are no longer required to create our own code and development is mostly just drag and drop, making deployment much easier now."
"The message queue connectors are the most valuable feature. They have built-in connectors for most of the systems, like SAP and Oracle Database."
"The most valuable feature is that it's robust and its time to market is very short."
"The Cloud Pak for Integration is a useful feature."
"Web interface, REST API for viewing services, admin, stats, and deployment are premium features, which makes IIB stand among its competition."
"The message enrichment and message transformations are great features and the solution also has great security."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"The solution's technical support is very knowledgeable."
"The connectors have been the most impactful features for handling integrations. I can use these connectors when I need specific connectivity with a third party, like a core banking system in BFSI. I don't need to do all the development. I take the specific connector, put in the IP address and password, and it takes care of everything."
"The productivity is the most valuable feature. It is very easy to write remediations."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"The drag-and-drop features for connectors are very valuable."
"WSO2's analytics capability is good, considering the ELC support they provide."
"It has improved our time management because development is quicker."
 

Cons

"Session management can sometimes hand forcing server reboots."
"The cloud deployment of the IBM Integration Bus should be made easier."
"However, with the benefit of the insights we now have, if we were to do the same process again, over five years, WSO2 has done so well, and some other middleware is also doing well. Likely we would not choose IBM if we had to choose again."
"Everything needs to be improved. As far as integration and the cloud are concerned, things are moving to the cloud side. When you use Kubernetes and similar technologies, IBM Integration Bus doesn't greatly facilitate these environments. Maybe I don't know enough about that, but I feel that when it comes to the DevOps environment, the tool needs to be deployed on production in a way that's just like pods."
"The solution requires a license and is very expensive here in India."
"We have to stop the integration server to start the debugging process."
"I contacted technical support, but I wasn't able to get the correct answer. I feel I wasn't given a good response."
"This product uses the PVU (Processor Value Unit) license model from IBM, and it is something that should be improved."
"The customization can be a bit difficult."
"The server is very specific and it is very difficult to get experience with it."
"There are a lot of security settings that when you apply you have to re-apply again every time you modify a setting."
"The scalability is not strong. If you want to scale it you have to install multiple servers."
"The setup can be difficult for those not familiar with the solution."
"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."
"WSO2 libraries are not mature enough. For example, if you want to integrate with Kafka using its Kafka library, it often has many bugs."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
 

Pricing and Cost Advice

"The price of this product could be lower."
"IBM is expensive."
"IBM Integration Bus is expensive."
"IBM Integration Bus is expensive."
"It is not cheap. It has its cost. It is one of the high-cost solutions."
"The pricing of the solution is high."
"Support costs are high compared to the competition. Otherwise, the support is good."
"IBM provides a quite complicated licensing model."
"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."
"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."
"I rate the product price a six on a scale of one to ten, where one is low price and ten is high price."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Manufacturing Company
8%
Computer Software Company
7%
Comms Service Provider
5%
Financial Services Firm
13%
Comms Service Provider
8%
Construction Company
7%
Computer Software 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 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: April 2026.
886,011 professionals have used our research since 2012.