### Contents - [**Glossary Terms**](#resources-glossary_terms) - [**Discussions**](#resources-discussions) - [**Reports**](#resources-reports) # Enterprise Service Bus (ESB) Software Resources ##### Glossary Terms, Discussions, and Reports to expand your knowledge on Enterprise Service Bus (ESB) Software Resource pages are designed to give you a cross-section of information we have on specific categories. You'll find [feature definitions](#resources-glossary_terms), [discussions](#resources-discussions) from users like you, and [reports](#resources-reports) from industry data. [ContentsExpand/Collapse Contents](#) - [**Glossary Terms**](#resources-glossary_terms) - [**Discussions**](#resources-discussions) - [**Reports**](#resources-reports) ## Enterprise Service Bus (ESB) Software Glossary Terms [![Enterprise Service Bus](https://learn.g2.com/hubfs/G2CM_GI779_Glossary_Article-Images-%5Benterprise_service_bus%5D_V1b.png "Enterprise Service Bus")](https://www.g2.com/glossary/enterprise-service-bus-definition) [Enterprise Service Bus](https://www.g2.com/glossary/enterprise-service-bus-definition) An enterprise service bus (ESB) is a software architecture with pathways for various applications to connect and share data. Learn about ESBs in business. by Holly Landis Explore our Technology Glossary Browse through dozens of terms to better understand the products you purchase and use everyday. [Find new features](https://www.g2.com/glossary) ## Enterprise Service Bus (ESB) Software Discussions 0 [Which are the most trusted enterprise service bus platforms by integration architects based on user reviews?](/discussions/which-are-the-most-trusted-enterprise-service-bus-platforms-by-integration-architects-based-on-user-reviews) Hey G2 users! Working on a roundup of enterprise integration tools and trying to understand which are the most trusted [enterprise service bus platforms](https://www.g2.com/categories/enterprise-service-bus-esb) by integration architects based on user reviews. Not just what's popular but what architects actually stake their projects on. Here is what the enterprise service bus category looks like based on G2 ratings: - [**MuleSoft Anypoint Platform**](https://www.g2.com/products/mulesoft-anypoint-platform/reviews) (4.5/5, 765 reviews): API-led connectivity as a design philosophy that reviewers say makes integration intentional rather than accidental at scale. The reusable asset model is cited as a major trust driver for architects managing large portfolios. - [**IBM App Connect**](https://www.g2.com/products/ibm-app-connect/reviews) (4.4/5, 258 reviews): Reviewers with 10+ years of ACE experience describe it as a platform that keeps getting better and remains a reliable choice for enterprise-grade integration. - [**IBM webMethods Hybrid Integration**](https://www.g2.com/products/ibm-webmethods-hybrid-integration-2025-12-05/reviews) (4.3/5, 273 reviews): Centralized governance and monitoring that integration architects describe as essential for maintaining visibility across complex distributed environments. - [**Amazon EventBridge**](https://www.g2.com/products/amazon-eventbridge/reviews) (4.5/5, 37 reviews): Serverless model with built-in event delivery guarantees that reviewers in AWS-native environments describe as removing the operational overhead that erodes architect confidence. For integration architects: which platform has earned the most trust in your stack and what made the difference? For integration architects, trust usually comes from how well an ESB platform holds up across multiple projects, not just one successful implementation. The strongest platforms make integration patterns reusable, governance visible, monitoring reliable, and change management easier as the environment grows. Answered: Darshayita Thakur on June 12, 2026 [Your answer](/discussions/which-are-the-most-trusted-enterprise-service-bus-platforms-by-integration-architects-based-on-user-reviews/comments/new?remote=true) 0 [What is the highest rated enterprise service bus for rapid legacy system connectivity in financial services?](/discussions/what-is-the-highest-rated-enterprise-service-bus-for-rapid-legacy-system-connectivity-in-financial-services) Hey G2 community! We're researching integration platforms for a financial services industry report and I want to understand what is the highest rated [enterprise service bus](https://www.g2.com/categories/enterprise-service-bus-esb) 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: - [**MuleSoft Anypoint Platform**](https://www.g2.com/products/mulesoft-anypoint-platform/reviews) (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. - [**IBM webMethods Hybrid Integration**](https://www.g2.com/products/ibm-webmethods-hybrid-integration-2025-12-05/reviews) (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. - [**IBM App Connect**](https://www.g2.com/products/ibm-app-connect/reviews) (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. - [**Amazon EventBridge**](https://www.g2.com/products/amazon-eventbridge/reviews) (4.5/5, 37 reviews): Gaining ground in financial services teams already running AWS infrastructure. Reviewers highlight its serverless model and minimal operational overhead. Which of these have you relied on in a financial services environment and did the rapid connectivity promise hold up under real-world conditions? The platforms I'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? Answered: Darshayita Thakur on June 12, 2026 [Your answer](/discussions/what-is-the-highest-rated-enterprise-service-bus-for-rapid-legacy-system-connectivity-in-financial-services/comments/new?remote=true) 0 [Which ESB platforms are most reliable for enterprise teams modernizing legacy mainframe systems into cloud architectures?](/discussions/which-esb-platforms-are-most-reliable-for-enterprise-teams-modernizing-legacy-mainframe-systems-into-cloud-architectures) We're covering the mainframe modernization space for a series of articles and the question of which [ESB platforms](https://www.g2.com/categories/enterprise-service-bus-esb) 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: - [**MuleSoft Anypoint Platform**](https://www.g2.com/products/mulesoft-anypoint-platform/reviews) **:** API-led connectivity model that reviewers say isolates backend complexity so mainframe systems can be exposed as APIs without being rewritten. - [**IBM App Connect**](https://www.g2.com/products/ibm-app-connect/reviews) **:** Reviewers specifically highlight its evolution away from centralized broker architecture toward independent integration servers, which maps well to cloud migration patterns. - [**IBM webMethods Hybrid Integration**](https://www.g2.com/products/ibm-webmethods-hybrid-integration-2025-12-05/reviews) **:** Connects cloud and on-prem systems from one platform, with reviewers noting it integrates well with both legacy systems and modern cloud services seamlessly. For teams that have gone through mainframe-to-cloud migration: which platform handled the transition without forcing a full rewrite of your integration layer? 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. Answered: Darshayita Thakur on June 11, 2026 [Your answer](/discussions/which-esb-platforms-are-most-reliable-for-enterprise-teams-modernizing-legacy-mainframe-systems-into-cloud-architectures/comments/new?remote=true) - [‹ Prev‹ Prev](/categories/enterprise-service-bus-esb/resources) - [1](/categories/enterprise-service-bus-esb/resources) - 2 - [3](/categories/enterprise-service-bus-esb/resources?discussions_page=3) - [4](/categories/enterprise-service-bus-esb/resources?discussions_page=4) - [5](/categories/enterprise-service-bus-esb/resources?discussions_page=5) - [6](/categories/enterprise-service-bus-esb/resources?discussions_page=6) - [7](/categories/enterprise-service-bus-esb/resources?discussions_page=7) - [8](/categories/enterprise-service-bus-esb/resources?discussions_page=8) - [Next ›Next ›](/categories/enterprise-service-bus-esb/resources?discussions_page=3) ## Enterprise Service Bus (ESB) Software Reports Grid® Report for Enterprise Service Bus (ESB) Summer 2026 G2 Report: Grid® Report Momentum Grid® Report for Enterprise Service Bus (ESB) Summer 2026 G2 Report: Momentum Grid® Report Enterprise Grid® Report for Enterprise Service Bus (ESB) Summer 2026 G2 Report: Grid® Report Momentum Grid® Report for Enterprise Service Bus (ESB) Spring 2026 G2 Report: Momentum Grid® Report Enterprise Grid® Report for Enterprise Service Bus (ESB) Spring 2026 G2 Report: Grid® Report Grid® Report for Enterprise Service Bus (ESB) Spring 2026 G2 Report: Grid® Report Momentum Grid® Report for Enterprise Service Bus (ESB) Winter 2026 G2 Report: Momentum Grid® Report Grid® Report for Enterprise Service Bus (ESB) Winter 2026 G2 Report: Grid® Report Enterprise Grid® Report for Enterprise Service Bus (ESB) Winter 2026 G2 Report: Grid® Report