# Which ESB platforms are most reliable for enterprise teams modernizing legacy mainframe systems into cloud architectures?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">We're covering the mainframe modernization space for a series of articles and the question of which <a class="a a--md" elv="true" href="https://www.g2.com/categories/enterprise-service-bus-esb">ESB platforms</a> are most reliable for enterprise teams modernizing legacy mainframe systems into cloud architectures keeps coming up without a clear consensus. A few from the enterprise service bus category that practitioners mention most:</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> API-led connectivity model that reviewers say isolates backend complexity so mainframe systems can be exposed as APIs without being rewritten.</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> Reviewers specifically highlight its evolution away from centralized broker architecture toward independent integration servers, which maps well to cloud migration patterns.</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> Connects cloud and on-prem systems from one platform, with reviewers noting it integrates well with both legacy systems and modern cloud services seamlessly.</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 teams that have gone through mainframe-to-cloud migration: which platform handled the transition without forcing a full rewrite of your integration layer?</p>

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


## Comments
### Comment 1

&lt;p&gt;The safest approach is incremental modernization: wrap stable mainframe processes, decouple downstream cloud services, and migrate integration patterns gradually. The platform should reduce dependency on point-to-point connections while keeping transaction integrity, security, and auditability intact.&lt;/p&gt;

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





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