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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 (31st)
 

Mindshare comparison

As of February 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 16.7%, down from 22.6% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.3%, 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 Bus16.7%
WSO2 Enterprise Integrator6.3%
Other77.0%
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 Integration Bus is flexible, easy to use, and easy to configure."
"We use IBM Integration Bus for document conversions."
"The most valuable thing is the loose coupling and making the change in only one stack of the ESB layer or the middleware layer."
"It has the ability to be deployed without rewriting the code."
"From a performance point of view, it's very good and it doesn't need very much in terms of CPU resources."
"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 this SQL database connector So those built in connectors are there. For the almost most of the systems, we have built in connectors. And second thing is that it is a stateless Integration, so it doesn't maintain a state of the integration. Bus the Stitches Integration makes it very fast."
"I found all features valuable. There are a lot of connectors."
"IBM Integration Bus's best feature is integration."
"It's a consolidated product. It works and it does its job pretty well."
"WSO2's analytics capability is good, considering the ELC support they provide."
"The customer service executives are very responsive."
"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 basically conforms to our standards."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"The drag-and-drop features for connectors are very valuable."
 

Cons

"IBM Integration Bus could improve by having a more lightweight installation. Additionally, automation could improve."
"Technical support is something that should be better."
"Its licensing or subscription model should be improved for more flexible adoption. There should also be more ease of use."
"This solution would benefit from improvements to the configuration interface."
"The version of the technology and current knowledge is a bit outdated."
"We have to stop the integration server to start the debugging process."
"I believe there is room for improvement in the pricing structure to make it more accessible."
"We used a third-party vendor, who help us install the solution and it was not easy."
"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 micro integrator should be improved. There is room for enhancement considering alternative integration components."
"WSO2 libraries are not mature enough. For example, if you want to integrate with Kafka using its Kafka library, it often has many bugs."
"They should release upgrades more frequently."
"If I have to buy software, then it becomes expensive for me."
"The setup can be difficult for those not familiar with the solution."
"The administration side is complex and could use significant improvements to enhance the solution's functionality."
"The integration capabilities need to be improved."
 

Pricing and Cost Advice

"It is a highly-priced solution."
"The maintenance and support of the product are very expensive."
"The pricing of the solution is high."
"IBM Integration Bus is expensive. There are cheaper products in the marketplace."
"The pricing could be improved to make it more competitive."
"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 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 solution requires a license and is very expensive here in India."
"The open-source, unsupported version is available free of charge."
"The solution costs about 20,000 or 30,000 euros per year, per instance."
"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 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 cost is better than IBM Cloud Pak."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
6%
Financial Services Firm
11%
Comms Service Provider
8%
Computer Software Company
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: February 2026.
882,606 professionals have used our research since 2012.