

IBM Integration Bus and Mule ESB are both enterprise service bus solutions. IBM Integration Bus is ideal for enterprises utilizing existing IBM infrastructure, while Mule ESB offers flexibility and ease of use, especially in API-led connectivity.
Features: IBM Integration Bus supports extensive WebSphere MQ connectivity, legacy systems integration via DFDL mapping, and strong SOA compliance. Its graphical development tools simplify integration tasks. Mule ESB offers numerous connectors, DataWeave for data transformation, and a lightweight architecture, supporting multiple deployment strategies and strong documentation.
Room for Improvement: IBM Integration Bus could enhance its orchestration capability, improve its configuration interface, and reduce dependency on MQ. Mule ESB might improve its stability, scalability, user interface, and reduce licensing costs. Enhancements in integration and real-time analytics are also desired for Mule ESB.
Ease of Deployment and Customer Service: IBM Integration Bus predominantly supports on-premises deployments but is complex to deploy with varying support quality. Mule ESB offers flexible deployment options with a cloud-native design. However, feedback indicates a need for improvement in support responsiveness.
Pricing and ROI: IBM Integration Bus is often criticized for its high cost, affecting smaller businesses, but is regarded as a long-term investment. Mule ESB is more cost-effective with a free community edition but still has high enterprise pricing. Users recommend careful planning regarding licensing to maximize ROI.
I would rate the technical support of IBM Integration Bus as nine out of ten; it was the best.
We have a good relationship with our vendor, and they are ready to help us with any technical issues.
The technical support of Mule ESB can be rated from nine to ten.
The technical support from Salesforce is moderate.
The adaptability of Mule ESB in supporting multiple messaging patterns is pretty decent and pretty good.
When it comes to scalability and the ability to expand, I would rate Mule ESB as an eight or nine.
Mule ESB is a scalable solution.
In my experience, it is a scalable solution, and IBM Integration Bus is indeed a stable product.
Mule ESB is a stable product, and I have no doubts about its reliability.
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.
Points for improvement in Mule ESB definitely include enhancing the analytics capabilities because currently, they rely on external logging tools such as Splunk or ELK, which is lagging behind compared to other tools such as Workato that offer more analytical features.
More information is needed from MuleSoft.
Pricing is one factor that could be improved about Mule ESB; other than that, I'm pretty fine with it.
Regarding the pricing setup cost and licensing for IBM Integration Bus, I believe it is expensive.
The features I find most valuable in IBM Integration Bus are very useful for performing transformations from systems such as SAP to Salesforce, and from Salesforce to S/4 and 365.
They have their own language called DataWeave, which helps transform data and is efficient enough to handle any kind of transformation.
It is also reusable, meaning the same service can be used in multiple places simply by adding it, and this comes with the API-led architecture that makes integrations more secure and reliable.
The best features of Mule ESB are that it's very robust and solid; I find that even our legacy systems go well with ESB.
| Product | Market Share (%) |
|---|---|
| IBM Integration Bus | 16.7% |
| Mule ESB | 16.5% |
| Other | 66.8% |

| Company Size | Count |
|---|---|
| Small Business | 15 |
| Midsize Enterprise | 17 |
| Large Enterprise | 47 |
| Company Size | Count |
|---|---|
| Small Business | 23 |
| Midsize Enterprise | 6 |
| Large Enterprise | 38 |
IBM Integration Bus is a market-leading software solution for application integration. It facilitates universal connectivity across enterprise systems, applications, and data, and offers a full range of integration capabilities on a flexible, secure, high-performance platform. You can use IBM Integration Bus to connect apps regardless of the communication formats or protocols they support. This connectivity enables interaction and data exchange among your varied applications in an adaptable, dynamic, and extensible infrastructure. IBM Integration Bus routes, transforms, and enriches messages from one location to another. It offers support for a wide range of functions, including routing, manipulating, filtering, enriching, monitoring, distribution, collection, correlation, and detection.
You can choose between IBM Integration Bus Advanced Edition, which is appropriate for a production setting, and IBM Integration Bus for Developers (Developer Edition), which is cost-free for development and testing purposes.
The interactions with IBM Integration Bus can be split into two categories:
IBM Integration Bus Benefits
There are many benefits to implementing IBM Integration Bus. Some of the biggest advantages the solution offers include:
Reviews from Real Users
IBM Integration Bus stands out among its competitors for a number of reasons. Two major ones are its robust data enrichment and its event correlation tool. PeerSpot users take note of the advantages of these features in their reviews:
Richard W., Chief Executive Officer at Responsiv, writes of the solution, “It reduces the need for programmers of consumer applications to understand where data is sourced, or how it is combined. It allows us to avoid the need for consumers to understand multiple API protocols and security arrangements, and in some circumstances can reduce the impact of systems being unavailable.
Another PeerSpot reviewer, an Integration Architect at a tech services company, notes, “One of the most valuable features is how seamless and easy to use this solution is. It's compatible with the cloud, it's a very seamless and fantastic tool.” He adds, “I rate this solution a nine out of ten.”
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