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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 (28th)
 

Mindshare comparison

As of August 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.1%, down from 21.8% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.3%, down 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 Bus16.1%
WSO2 Enterprise Integrator5.3%
Other78.6%
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 is offering with the Integration Bus a very robust and stable solution."
"REST API design and development support are useful. Building and exposing APIs using GUI API designer with editor makes implementation a breeze."
"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 most valuable feature is that it's robust and its time to market is very short."
"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."
"What I like best are the monitoring features."
"From a performance point of view, it's very good and it doesn't need very much in terms of CPU resources."
"IBM Integration Bus's best feature is integration."
"The productivity is the most valuable feature. It is very easy to write remediations."
"The learning curve for this solution is very good."
"The solution's customer service is good."
"The stability is excellent."
"Currently, I find the configuration part quite valuable, where you can easily configure things."
"The customer service executives are very responsive."
"While I am still exploring the solution, I've so far been pretty satisfied with it."
"It was mostly easy to set up the product."
 

Cons

"Surely something that can be improved is session management. Sometimes sessions hang, and practically every day we hear about session congestion and this kind of thing."
"We decided to move away from IBM Integration Bus for IT technical refreshments."
"We have come across many customer complaints about the excessive time it takes for IBM to provide customer and technical support."
"I would like for them to make the training much easier."
"IBM Integration Bus can improve by implementing no-code or drag-and-drop adapters development, similar to what is available in Red Hat."
"The Toolkit itself is based on Eclipse and Java, and it does not respond sometimes."
"The memory footprint should be minimized."
"The product does not provide API management."
"They should release upgrades more frequently."
"For simpler tasks or simpler use cases, we avoid using WSO2 Enterprise Integrator because it is quite complex."
"The integration capabilities need to be improved."
"I would like to see better documentation for the open-source version."
"The product's price is an area of concern where improvements are required."
"The server is very specific and it is very difficult to get experience with it."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
"The customization can be a bit difficult."
 

Pricing and Cost Advice

"It is not cheap. It has its cost. It is one of the high-cost solutions."
"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 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."
"The pricing of the solution is high."
"The price of this product could be lower."
"The price of the license could be cheaper."
"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."
"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 open-source, unsupported version is available free of charge."
"It is a low-cost solution."
"The cost is better than IBM Cloud Pak."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Manufacturing Company
8%
Outsourcing Company
8%
Construction Company
6%
Financial Services Firm
10%
Outsourcing Company
10%
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: August 2026.
909,647 professionals have used our research since 2012.