# What are the best enterprise service bus platforms for connecting legacy banking systems without rebuilding infrastructure?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Hi! I'm currently working on a content piece for a financial services client and the question of what are the best <a class="a a--md" elv="true" href="https://www.g2.com/categories/enterprise-service-bus-esb">enterprise service bus </a><a class="a a--md" elv="true" href="https://www.g2.com/categories/enterprise-service-bus-esb">(ESB) </a><a class="a a--md" elv="true" href="https://www.g2.com/categories/enterprise-service-bus-esb">platforms</a> for connecting legacy banking systems without rebuilding infrastructure keeps coming up as the central challenge nobody has a clean answer to. Here are the options I keep seeing come up in the enterprise service bus category:</p><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/mulesoft-anypoint-platform/reviews"><strong>MuleSoft Anypoint Platform</strong></a><strong>:</strong> Hundreds of pre-built connectors across SAP, Oracle, and legacy systems that reviewers say eliminate the need to rebuild point-to-point integrations.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/ibm-app-connect/reviews"><strong>IBM App Connect</strong></a><strong>:</strong> Deploys on-prem or cloud without a centralized broker redesign. Reviewers highlight its stability and connection breadth across hybrid environments.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/ibm-webmethods-hybrid-integration-2025-12-05/reviews"><strong>IBM webMethods Hybrid Integration</strong></a><strong>:</strong> Wide connector library that reviewers say significantly reduces custom development across legacy and modern applications.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/amazon-eventbridge/reviews"><strong>Amazon EventBridge</strong></a><strong>:</strong> Reviewers describe it as useful for decoupling legacy systems from modern services without heavy infrastructure changes.</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">For integration architects who've done this in financial services, which platform actually held up and where did the complexity land?</p>

##### Post Metadata
- Posted at: 2 months ago
- Author title: Marketing Executive
- Net upvotes: 1


## Comments
### Comment 1

&lt;p&gt;The complexity usually does not disappear; it shifts into data mapping, governance, security controls, and exception handling. I’d prioritize platforms that let teams modernize incrementally while keeping critical banking systems stable and auditable.&lt;/p&gt;

##### Comment Metadata
- Posted at: 2 months ago
- Author title: Marketing Executive





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