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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 September 2025, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 21.0%, down from 22.2% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.6%, up from 5.3% 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 Bus21.0%
WSO2 Enterprise Integrator5.6%
Other73.4%
Enterprise Service Bus (ESB)
 

Featured Reviews

Ashraf Siddiqui - PeerSpot reviewer
Helpful for complex integrations because it has tools and functionality to integrate with other systems
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. Cloud integration needs to be more facilitated with the DevOps environment. This IBM technology needs to adapt because in the recent world, in the real world, we see that everything is just a cloud pod. Whenever you need to scale anything, you just put some cloud and pod and improve it, make any server and deploy it. But in IBM Integration Bus, there is a problem because we can't do this as easily. In short, IBM needs to more emphasize or more integrate with the cloud environments as well, similar to DevOps. There are limitations in IBM Integration Bus when it comes to DevOps.
Ritesh_Shah - PeerSpot reviewer
Decreases the development timeframe and costs
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. Often, customers decide to develop using open-source tools like Spring Boot if there aren't many connectors required to avoid increasing costs. They'll develop this way and then deploy using APIM, the bare minimum needed. It is mainly required for very complicated setups with many connectors. In the implementations I've seen, people often used open-source tools because there weren't many third-party systems involved—just their organization's own systems. From WSO2 Enterprise Integrator, I expect them to bring up more and more connectors in the future. That's the main expectation. Having more connectors in various areas will help us when discussing new requirements. I don't have any specific use case right now, so I can't name a particular connector. But, as new technologies emerge, the relevant connectors should be there for those. WSO2 Enterprise Integrator mainly helps with the integration part, which can be simplified only if you have relevant connectors for whatever you're doing.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The message queue connectors are the most valuable feature. They have built-in connectors for most of the systems, like SAP and Oracle Database."
"IBM Integration Bus' most valuable features are its performance, fast and easy development, and easy support."
"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 error handling and monitoring functionalities of IBM Integration Bus are very good."
"The solution is stable and can scale relatively easily."
"The Cloud Pak for Integration is a useful feature."
"It is a stable solution."
"The product is a user-customized tool so that you can adjust it to your specific needs pretty well with little trouble."
"It was mostly easy to set up the product."
"The customer service executives are very responsive."
"WSO2's analytics capability is good, considering the ELC support they provide."
"The solution's customer service is good."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"The installation process is easy."
"The solution's technical support is very knowledgeable."
"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."
 

Cons

"The solution’s pricing could be improved."
"We decided to move away from IBM Integration Bus for IT technical refreshments."
"I would like to be able to run and install this solution on different platforms."
"The price could be better. It would also be better if they simplified the code."
"IBM Integration Bus could be easier to manage, but this is true of all vendors. It doesn't always do what it says on the box."
"The solution needs to simplify its documentation, such as the user and operation manuals, to make them even easier to understand."
"I would like to be able to build an Integration Bus cluster that is active-active."
"We have to stop the integration server to start the debugging process."
"The integration capabilities need to be improved."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"I would like to see better documentation for the open-source version."
"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."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"The server is very specific and it is very difficult to get experience with it."
"If I have to buy software, then it becomes expensive for me."
"They should release upgrades more frequently."
 

Pricing and Cost Advice

"IBM provides a quite complicated licensing model."
"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."
"It is a highly-priced solution."
"IBM Integration Bus is expensive."
"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."
"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 pricing of the solution is high."
"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."
"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."
"It is a low-cost solution."
"The open-source, unsupported version is available free of charge."
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Top Industries

By visitors reading reviews
Financial Services Firm
21%
Computer Software Company
12%
Manufacturing Company
9%
Insurance Company
7%
Financial Services Firm
16%
Computer Software Company
16%
Government
6%
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
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