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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
7.0
Number of Reviews
19
Ranking in other categories
Data Integration (32nd)
 

Mindshare comparison

As of July 2025, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 21.9%, up from 21.3% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.4%, up from 5.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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

"I really like SQL integration nodes, HTTP nodes, event handling, event monitoring, the performance of the solution."
"It is user-friendly and a value-added tool for banks and other verticals."
"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."
"It is a stable solution."
"IBM Integration Bus is flexible, easy to use, and easy to configure."
"The Aspera feature for high-speed transfer is highly effective."
"IBM Integration Bus has been effective in facilitating our messaging and service-oriented architecture (SOA) or bus architecture. So, we're already utilizing it to transform the data from the source it's sending. It converts the data from the format the source sends it into the format the destination system requires. So we are transforming the messages, which are required by the destination system; that's the one way."
"WSO2's analytics capability is good, considering the ELC support they provide."
"It's a consolidated product. It works and it does its job pretty well."
"The customer service executives are very responsive."
"The solution basically conforms to our standards."
"I like the user-friendly system and development of the service-oriented architecture."
"The drag-and-drop features for connectors are very valuable."
"The productivity is the most valuable feature. It is very easy to write remediations."
"The solution's technical support is very knowledgeable."
 

Cons

"The solution is complex and there is a need for more resources and greatly improved quality."
"It provides all the features that are required for day-to-day work. So far, I haven't seen any major issues that impact our work. I have been told that IBM App Connect Enterprise, which is the next version of IIB, is really good. It is better than IIB, and it gives you more coverage in terms of application integration."
"Sometimes migration takes too long."
"Storage capacity of the product should be addressed."
"I would like to see more metered rest and API support. IBM is already working on it on Version 11, but it still needs improvement."
"There is room for improvement in providing more specific error messages and error criteria."
"The password settings need improvement."
"The solution needs instruction or guidance."
"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 product's price is an area of concern where improvements are required."
"They should introduce better pricing for small companies."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"The integration capabilities need to be improved."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"The customization can be a bit difficult."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
 

Pricing and Cost Advice

"The maintenance and support of the product are very expensive."
"The price of this product could be lower."
"The price of the license could be cheaper."
"Pricing is on par with its competition."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"The pricing of the solution is high."
"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."
"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 open-source, unsupported version is available free of charge."
"It is a low-cost solution."
"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."
"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
22%
Computer Software Company
13%
Manufacturing Company
8%
Insurance Company
6%
Computer Software Company
23%
Financial Services Firm
18%
Manufacturing Company
6%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
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 e...
 

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: June 2025.
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