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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)
2nd
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 March 2026, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 17.1%, down from 22.4% compared to the previous year. The mindshare of WSO2 Enterprise Integrator is 6.6%, up from 4.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Service Bus (ESB) Mindshare Distribution
ProductMindshare (%)
IBM Integration Bus17.1%
WSO2 Enterprise Integrator6.6%
Other76.3%
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

"It has the ability to be deployed without rewriting the code."
"Facilitates communication between parties and legacy systems."
"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."
"The product is very stable."
"Web interface, REST API for viewing services, admin, stats, and deployment are premium features, which makes IIB stand among its competition."
"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 solution offers good performance and is stable."
"Web interface, REST API for viewing services, admin, stats, and deployment are premium features, which makes IIB stand among its competition."
"It's a very complete product. It allows us to network security and add more layers of security to the system."
"The solution basically conforms to our standards."
"The connectors have been the most impactful features for handling integrations. I can use these connectors when I need specific connectivity with a third party, like a core banking system in BFSI. I don't need to do all the development. I take the specific connector, put in the IP address and password, and it takes care of everything."
"The stability is excellent."
"The solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"It was mostly easy to set up the product."
"The solution's customer service is good."
"The productivity is the most valuable feature. It is very easy to write remediations."
 

Cons

"The user interface could be improved in a future release."
"The solution needs to simplify its documentation, such as the user and operation manuals, to make them even easier to understand."
"I would rate the support from IBM Integration Bus a seven out of ten. They are very helpful but sometimes it takes too long for them to respond."
"I believe there is room for improvement in the pricing structure to make it more accessible."
"The price could be better. It would also be better if they simplified the code."
"It would be beneficial for it to function more as an iPaaS, with the runtime available in the cloud, potentially on platforms like AWS, Azure, or Google Cloud."
"The cloud deployment of the IBM Integration Bus should be made easier."
"The performance needs to be enhanced when working with the Toolkit."
"The integration capabilities need to be improved."
"I would like to see them bring back a feature, from earlier versions, that was very useful in debugging and finding issues."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"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."
"The setup can be difficult for those not familiar with the solution."
"You cannot include the validation of XPath."
"The server is very specific and it is very difficult to get experience with it."
 

Pricing and Cost Advice

"It is not cheap. It has its cost. It is one of the high-cost solutions."
"The maintenance and support of the product are very expensive."
"IBM Integration Bus is expensive."
"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."
"IBM Integration Bus solution is expensive and this is one of the reasons we are looking for an alternative, such as MuleSoft."
"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."
"IBM is expensive."
"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 open-source, unsupported version is available free of charge."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
6%
Financial Services Firm
9%
Comms Service Provider
8%
Computer Software Company
7%
Government
7%
 

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: March 2026.
884,933 professionals have used our research since 2012.