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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 (32nd)
 

Mindshare comparison

As of October 2025, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 20.4%, 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 Bus20.4%
WSO2 Enterprise Integrator5.6%
Other74.0%
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 solution's features are all quite useful. We use all of them."
"The solution has enhanced data processing capabilities by allowing efficient data integration and transformation."
"The product helps efficiently work with different connectors from different back-end systems."
"It is very straightforward. It is very user-friendly integration."
"The product is a user-customized tool so that you can adjust it to your specific needs pretty well with little trouble."
"The solution offers good performance and is stable."
"Seamlessly integrates your different applications."
"IBM Integration Bus's best feature is integration."
"The solution's technical support is very knowledgeable."
"The drag-and-drop features for connectors are very valuable."
"It was mostly easy to set up the product."
"It's a consolidated product. It works and it does its job pretty well."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"The installation process is easy."
"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."
 

Cons

"The tracing and debugging features are not up to date with more modern technology available."
"They need to come up with Integration Platform as a Service (iPaaS). It should also have a feature for integrating with those applications that are on the cloud."
"IBM Integration Bus could improve by having a more lightweight installation. Additionally, automation could improve."
"The solution is too expensive for smaller companies."
"The version of the technology and current knowledge is a bit outdated."
"We have to stop the integration server to start the debugging process."
"The solution needs instruction or guidance."
"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."
"The server is very specific and it is very difficult to get experience with it."
"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."
"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."
"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 customization can be a bit difficult."
"You cannot include the validation of XPath."
"They should introduce better pricing for small companies."
"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."
"The maintenance and support of the product are very expensive."
"IBM is expensive."
"The price of this product could be lower."
"Support costs are high compared to the competition. Otherwise, the support is good."
"Pricing is on par with its competition."
"The pricing of the solution is high."
"It is not cheap. It has its cost. It is one of the high-cost solutions."
"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 open-source, unsupported version is available free of charge."
"The cost is better than IBM Cloud Pak."
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Top Industries

By visitors reading reviews
Financial Services Firm
21%
Computer Software Company
12%
Manufacturing Company
8%
Insurance Company
7%
Financial Services Firm
15%
Computer Software Company
11%
Government
7%
Comms Service Provider
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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Find out what your peers are saying about IBM Integration Bus vs. WSO2 Enterprise Integrator and other solutions. Updated: September 2025.
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