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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 (29th)
 

Mindshare comparison

As of September 2025, in the Enterprise Service Bus (ESB) category, the mindshare of IBM Integration Bus is 21.0%, 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 Bus21.0%
WSO2 Enterprise Integrator5.6%
Other73.4%
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

"We can have multiple endpoints, and we can integrate different applications from different platforms. In a large-scale enterprise setup, it becomes so easy to establish communication between applications. You can connect an application to other applications, other legacy applications, and databases. You can also connect with those applications that are in the cloud. You can connect with other well-known applications, such as Salesforce, SAP, and Workday, by using IBM Integration Bus."
"The integration with other tools is excellent. It integrates well with batch issues."
"The Cloud Pak for Integration is a useful feature."
"The product is usually very easy to deploy."
"The interface is quite stable."
"The most valuable feature is that it is clear and easy to learn."
"I am into microservices using Java Spring Boot, but if we are using legacy systems, IBM Integration Bus is very good for them. They have their own computational logic called EC12, their own proprietary language. You can do any kind of complex logic and can implement other ESVs that I have seen."
"The biggest advantage of this solution is that it is very easy to learn, and very easy to build applications."
"The stability is excellent."
"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 solution has two main parts: integration and transformation. It's very user-friendly and easy to understand for everyone."
"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."
"The productivity is the most valuable feature. It is very easy to write remediations."
"WSO2's analytics capability is good, considering the ELC support they provide."
"The drag-and-drop features for connectors are very valuable."
"The solution's technical support is very knowledgeable."
 

Cons

"It needs improvement in terms of technical support as well as in terms of integration of data mining. I am not convinced about many things in this solution, such as the conversion of the DFDL or copybook file, which is the conversion from a text file to XML. It is very complex. They should also provide more information about this solution in the IBM Knowledge Center. I can get a lot of information from the IBM Knowledge Center about DataStage, but I don't get that much information about IBM Integration Bus. There is hardly any information even on the internet and various channels such as YouTube. They can provide good step-by-step documentation based on a company's requirements. It would be really helpful. My company is mainly looking for data mining and communicating with multiple servers. IBM Integration Bus is good for communicating with multiple servers, but it needs improvement for XML conversion and data mining. We have a lot of old systems that use XML."
"The interface could be more user-friendly."
"One drawback that I have found is that there are issues with using the Java connector."
"We decided to move away from IBM Integration Bus for IT technical refreshments."
"Session management can sometimes hand forcing server reboots."
"The performance needs to be enhanced when working with the Toolkit."
"Storage capacity of the product should be addressed."
"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."
"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."
"If I have to buy software, then it becomes expensive for me."
"They should release upgrades more frequently."
"The micro integrator should be improved. There is room for enhancement considering alternative integration components."
"The product's price is an area of concern where improvements are required."
"In my opinion, the administration model and interface, of Carbon, are lacking in terms of its features and user experience."
"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 customization can be a bit difficult."
 

Pricing and Cost Advice

"It is a highly-priced solution."
"The price of this product could be lower."
"It is not cheap. It has its cost. It is one of the high-cost solutions."
"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."
"Support costs are high compared to the competition. Otherwise, the support is good."
"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."
"It is a low-cost solution."
"The cost is better than IBM Cloud Pak."
"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."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
21%
Computer Software Company
12%
Manufacturing Company
9%
Insurance Company
7%
Financial Services Firm
16%
Computer Software Company
16%
Government
6%
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: September 2025.
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