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Middleware Software: Messaging, Streaming, Service Meshes & Integration

A hub of middleware directories — messaging and streaming, service connectivity, and enterprise integration — the software that connects applications, services and systems.

19 topics•4 categories•Updated October 2026

Messaging, Streaming & Events

5 entries

Moving events and messages between systems.

01Apache KafkaKafka and the event-streaming ecosystem. 02Event Brokering SoftwareBrokers and event streaming platforms. 03MQTT BrokersMessaging platforms for IoT. 04Event MeshesEvent mesh technologies that connect brokers. 05Event-driven ArchitectureEvent-driven architecture hub.

Service Connectivity

3 entries

Managing traffic between services and APIs.

06Service MeshesService mesh implementations such as Istio, Linkerd and Cilium. 07API Management PlatformsAPI management and gateways. 08Microservices ArchitectureMicroservices architecture hub.

Enterprise Integration

7 entries

Connecting applications, partners and workflows.

09ESB & Managed File Transfer SolutionsEnterprise service buses and managed file transfer. 10Integration TechnologiesIntegration software and platforms. 11iPaaS VendorsIntegration platform as a service vendors. 12B2B Integration PlatformsBusiness-to-business integration platforms. 13Workflow Engines & Orchestration ToolsWorkflow engines and orchestration tools. 14Healthcare Integration EnginesIntegration engines for healthcare data exchange. 15Middleware SolutionsMiddleware solutions directory.

Related Pages

4 entries

Neighbouring directories.

16Distributed ComputingDistributed computing resources. 17Cloud-native ComputingCloud-native computing hub. 18Software CategoriesSoftware types hub. 19Software EngineeringSoftware engineering hub.

Frequently Asked Questions

What is middleware?

Middleware is software that sits between applications, services and systems to handle communication, data exchange and management, so developers do not have to build that plumbing themselves.

What are the main types of middleware?

Message brokers and streaming platforms, API gateways and service meshes, enterprise service buses and integration platforms, and workflow engines.

What is the difference between a message broker and an event mesh?

A broker routes messages within one system; an event mesh connects brokers across clouds and data centres so events flow where they are needed.

What does a service mesh do?

It manages service-to-service traffic through sidecar or node proxies, adding mutual TLS, retries, rate limiting and observability without changing application code.

How does middleware relate to event-driven architecture?

Brokers and streaming platforms are the backbone of EDA; see the event-driven architecture hub.