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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 January 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.6%, down from 22.9% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 5.9%, up from 4.7% 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 Bus16.6%
WSO2 Enterprise Integrator5.9%
Other77.5%
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

"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 product is usually very easy to deploy."
"I really like SQL integration nodes, HTTP nodes, event handling, event monitoring, the performance of the solution."
"IBM Integration Bus's best feature is integration."
"Having the solution come from IBM you know you are receiving a product of quality in components and in the services, it is very good."
"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 solution offers good performance and is stable."
"The Aspera feature for high-speed transfer is highly effective."
"The solution's customer service is good."
"WSO2's analytics capability is good, considering the ELC support they provide."
"The installation process is easy."
"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 solution basically conforms to our standards."
"From the capabilities and functional possibility and anything else technical, it is a very well-done product, I have to say."
"The learning curve for this solution is very good."
 

Cons

"IBM Integration Bus isn't particularly user-friendly and has a big learning curve."
"IBM doesn't really have a very strong community surrounding the product. Most of its direct competitors are open source solutions, and those have an excellent and well-developed community around the tech to help users navigate the ins and outs of the product. IBM is lacking in this area."
"There is room for improvement in providing more specific error messages and error criteria."
"The solution is complex and there is a need for more resources and greatly improved quality."
"The version of the technology and current knowledge is a bit outdated."
"We have to stop the integration server to start the debugging process."
"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."
"IBM Integration Bus could improve by having a more lightweight installation. Additionally, automation could improve."
"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."
"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 server is very specific and it is very difficult to get experience with it."
"The customization can be a bit difficult."
"They should release upgrades more frequently."
"I would like to see better documentation for the open-source version."
"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

"The maintenance and support of the product are very expensive."
"I generally do not get involved in the licensing or pricing because I'm a hardcore technical guy, but I'm aware of the fact that IBM is highly expensive, so not everybody can afford it. All the products are licensed."
"IBM Integration Bus itself is prices fair but App-Connect is a bit expensive which we use in conjunction with it."
"Support costs are high compared to the competition. Otherwise, the support is good."
"The price is reasonable considering the features we receive."
"The price of the license could be cheaper."
"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."
"It is not cheap. It has its cost. It is one of the high-cost solutions."
"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 cost is better than IBM Cloud Pak."
"It is a low-cost solution."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
"The open-source, unsupported version is available free of charge."
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Top Industries

By visitors reading reviews
Financial Services Firm
20%
Computer Software Company
12%
Manufacturing Company
8%
Insurance Company
7%
Financial Services Firm
12%
Computer Software Company
10%
Comms Service Provider
7%
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
West
Find out what your peers are saying about IBM Integration Bus vs. WSO2 Enterprise Integrator and other solutions. Updated: December 2025.
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