

IBM Integration Bus and Mule ESB are leaders in the application integration and middleware software category. IBM Integration Bus stands out due to its comprehensive protocol compatibility and robust MQ connectivity, while Mule ESB shows superiority with its wide array of connectors and flexibility in deployment strategies.
Features: IBM Integration Bus offers broad WebSphere MQ connectivity, advanced support for multiple message formats, and integration with various IBM products. It ensures global transaction coordination and SOA compliance. Mule ESB provides extensive connectors, robust data transformation with DataWeave, and flexible deployment strategies. It's appreciated for the simplicity in developing complex workflows and strong API management capabilities.
Room for Improvement: IBM Integration Bus can enhance orchestration and microservice support, reduce MQ dependencies for aggregation flows, and improve documentation and configuration interface. A reduction in resource consumption would also help. Mule ESB could focus on stabilizing connectors, enhancing memory efficiency, and simplifying setup processes while strengthening community support for easier entry for new users.
Ease of Deployment and Customer Service: Both products support on-premises, private, and public cloud deployment models. IBM Integration Bus is noted for its strong technical support though its setup is complex. Mule ESB is lauded for its deployment flexibility, yet has room for improvement in simplifying its initial setup. Both provide responsive customer service, with IBM’s support sometimes perceived as costlier.
Pricing and ROI: IBM Integration Bus is considered expensive for smaller organizations but offers a good return on investment over the long term, aligning with enterprise needs for a robust solution. Mule ESB also has high pricing due to licensing but offers an open-source community edition and varied pricing plans, making it adaptable to diverse organizational requirements.
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 | 16.6% |
| Mule ESB | 15.0% |
| Other | 68.4% |

| 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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