# What is the highest rated enterprise service bus for rapid legacy system connectivity in financial services?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Hey G2 community! We're researching integration platforms for a financial services industry report and I want to understand what is the highest rated <a class="a a--md" elv="true" href="https://www.g2.com/categories/enterprise-service-bus-esb">enterprise service bus</a> for rapid legacy system connectivity in financial services based on what practitioners actually say. Top options from the enterprise service bus category based on G2 ratings:</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> (4.5/5, 765 reviews): Most reviewed ESB on G2. Widely used across banking, insurance, and financial services for connecting SAP, Oracle, and legacy systems. Reviewers in the sector cite it as the standard for API-led integration at enterprise scale.</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> (4.3/5, 273 reviews): Strong presence in banking, retail, and insurance. Reviewers highlight its centralized management and wide connector library as core reasons for choosing it in complex legacy environments.</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> (4.4/5, 258 reviews): Frequently used in financial services and higher education environments. G2 reviewers describe it as an increasingly stable and powerful platform that keeps improving with each release.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/amazon-eventbridge/reviews"><strong>Amazon EventBridge</strong></a> (4.5/5, 37 reviews): Gaining ground in financial services teams already running AWS infrastructure. Reviewers highlight its serverless model and minimal operational overhead.</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Which of these have you relied on in a financial services environment and did the rapid connectivity promise hold up under real-world conditions?</p>

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


## Comments
### Comment 1

The platforms I&#39;ve seen succeed in these environments are the ones that reduce the amount of custom integration work while still supporting the governance, security, and audit requirements that banks and insurers operate under. Pre-built connectors help, but the real differentiator is how well the platform handles data transformation, transaction integrity, and hybrid deployments where legacy and cloud systems need to coexist for years.

Were the biggest delays technical, or related to security, compliance, and governance reviews?

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





## Related discussions
- [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team)
  - Posted at: about 13 years ago
  - Comments: 6
- [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section)
  - Posted at: about 13 years ago
  - Comments: 0
- [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm)
  - Posted at: about 13 years ago
  - Comments: 4