What Helidon does

Helidon is a cloud-native, open-source Java microservices framework maintained by Oracle Corporation and released under the Apache License 2.0. The project comprises two programming models: Helidon SE, a functional, minimal-dependency model built on the Helidon WebServer, and Helidon MP, a MicroProfile/Jakarta EE-conformant model with annotation-driven dependency injection. The shared runtime is the Helidon WebServer, notable as the first web server written from scratch fully based on Java virtual threads, which underpins the framework's low-memory and fast-startup characteristics (34–117 MB runtime footprint; 0.06–1.8 sec startup depending on deployment mode). The product suite includes Helidon CLI, DbClient, Config, Security (JWT/OIDC/Vault), Health, Metrics, Tracing (OpenTelemetry/Prometheus/Jaeger/Zipkin), WebSocket, GraphQL, gRPC, Fault Tolerance, Messaging (Kafka/JMS/Oracle AQ), and Inject (compile-time dependency injection). A 2025 preview integration with LangChain4j adds declarative AI services, agents, and RAG across multiple LLM providers.

The framework is distributed globally via Maven Central, GitHub, and a self-serve Project Starter, and reaches developers through documentation, Medium blog content, Slack, and conference presence. Its go-to-market is community-led and developer relations-driven, with no direct pricing, no licensing fees, and no disclosed paying customers. The primary commercial intent appears to be deepening Java developer affinity with Oracle Cloud Infrastructure and Oracle's broader enterprise software portfolio rather than generating standalone revenue. Helidon competes in a crowded space against Spring Boot, Quarkus, and Micronaut, and differentiation is concentrated in virtual-thread-native architecture and GraalVM Native Image support.

Name

Helidon

Legal name

Oracle Corporation

Website

https://helidon.io

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Helidon is an open-source, Oracle-maintained Java microservices framework offering two programming models (Helidon SE and Helidon MP) on a virtual-thread-based web server, targeting Java developers building cloud-native and AI-powered microservices.

Ownership category

akta.pro rank

Product category

Cloud-Native Java Microservices Framework

NAICS

Computer Systems Design and Related Services (5415), Computer Systems Design Services (541512)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371)

akta.pro primary industry

Service Mesh & Microservices Integration (HDAEAIAF)

akta.pro secondary industries

Hybrid Cloud Compute & Virtualization Stack (HCI/VMs/Kubernetes) (HDABAMAF), End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA), Model Serving, Inference & Deployment Platforms (APIs, Edge/On-Prem) (HDAEANAC)

Keywords

• Java microservices framework
• Cloud-native application development
• Open-source Java framework
• Virtual threads web server
• MicroProfile enterprise Java

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Open Source Framework (Primary): Helidon is a fully open-source project (Apache License 2.0). There is no direct revenue model for the core framework. The project is maintained by Oracle Corporation as indicated by the copyright notice. The framework generates value through community adoption, ecosystem growth, and potentially drives adoption of Oracle Cloud Infrastructure and related Oracle services.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Helidon is an open-source cloud-native Java framework for building microservices and AI-powered applications. It runs on the Helidon WebServer, written from scratch on Java virtual threads, and offers two programming models: Helidon SE (functional, minimal dependencies) and Helidon MP (MicroProfile/Jakarta EE). The framework supports GraalVM Native Image, observability tooling, and integrations with Kubernetes, OpenTelemetry, Prometheus, and LangChain4j.

Product overview

Helidon is a cloud-native, open-source Java microservices framework sponsored by Oracle. The product portfolio consists of two main editions: Helidon SE (the foundational direct programming model with minimal dependencies) and Helidon MP (MicroProfile with Jakarta EE support for enterprise developers). These core products share key components including the Helidon WebServer (built on virtual threads), Helidon CLI (command-line tooling), Helidon Config (configuration management), Helidon Security (with JWT, OIDC, Vault integration), Helidon Health/Metrics/Tracing (observability), Helidon Messaging (reactive messaging with Kafka/JMS connectors), and Helidon DbClient (database access). Additional modules include Helidon GraphQL Server, Helidon gRPC Server, Helidon WebSocket, Helidon Scheduling, Helidon Fault Tolerance, and Helidon Inject (dependency injection). A preview AI integration with LangChain4j enables declarative AI services and agents for building AI-powered microservices. Deployment options include GraalVM Native Image and JLink for optimized runtime images.

Differentiator

Problem solved

Functional benefit

Products and services

• Helidon SE Helidon SE is the foundational programmatic model of the Helidon framework, providing a direct, functional API for building microservices in Java. It runs on the Helidon WebServer with virtual threads, offering full control over application structure with a small runtime footprint and few third-party dependencies. Targeted at Java developers who prefer minimal abstraction and lean code over declarative frameworks.
• Helidon MP (MicroProfile) Helidon MP is the MicroProfile-based programming model of the Helidon framework. It supports Jakarta EE APIs, annotation-driven components with dependency injection, and familiar patterns for REST services, configuration, security, health checks, and metrics. Targeted at enterprise Java developers familiar with MicroProfile and Jakarta EE standards.
• Helidon WebServer Helidon WebServer is the world's first web server written from scratch fully based on Java virtual threads. It provides a modern functional programming model with lightweight, flexible request handling and fast startup times, serving as the HTTP runtime foundation for both Helidon SE and Helidon MP.
• Helidon CLI Helidon CLI is a command line utility for creating, building, and developing Helidon applications. Supports commands: build, dev (continuous development), info, init (project generation), and version. Targeted at Java developers using Helidon for local development workflows.
• Helidon LangChain4j Integration Helidon LangChain4j Integration provides declarative AI service and agent capabilities for building AI-powered Java microservices. Supports multiple LLM providers (OpenAI, Google Gemini, Ollama, Cohere, Oracle OCI GenAI, Jlama), RAG, AI Services, and Agents via @Ai.Service and @Ai.Agent annotations.
• Helidon Project Starter Helidon Project Starter is a web-based project generator at helidon.io/starter that allows developers to quickly create customized Helidon SE or MP projects with selected features and configurations.

Quantifiable outcome

• 0.08 second startup time with GraalVM Native Image
• +2 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration31 records

AI capability8 records

Feature8 records

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Spring Boot: The dominant Java microservices framework, maintained by VMware/Broadcom. Directly competes with Helidon SE/MP for Java microservice workloads with a much larger ecosystem, training base, and Spring Cloud integrations.
• Micronaut: Lightweight Java framework from OCI/Oracle-backed engineering with compile-time DI and GraalVM Native support. Competes head-to-head with Helidon SE on low-footprint, fast-startup cloud-native Java microservices.
• Open Liberty: IBM's open-source MicroProfile and Jakarta EE runtime for cloud-native Java microservices. Directly competes with Helidon MP for enterprise developers wanting MicroProfile compliance with vendor support.
• Ktor: JetBrains' asynchronous Kotlin framework for microservices; a JVM-based, lightweight alternative comparable to Helidon SE in footprint and developer ergonomics, though language-focused on Kotlin.
• Dropwizard: Mature Java framework for building RESTful microservices with embedded Jetty. Competes with Helidon SE for developers wanting a lean, opinionated runtime without heavy Spring-style abstraction.
• Vert.x: Eclipse Foundation's reactive, polyglot toolkit for building event-driven microservices on the JVM. Comparable to Helidon SE in providing low-level, lightweight primitives rather than a full DI framework.
• Payara Micro: Lightweight MicroProfile/Jakarta EE runtime from Payara Services for building and packaging Java microservices. Comparable to Helidon MP with similar enterprise Java programming model.
• Quarkus: Red Hat's cloud-native Java framework optimized for Kubernetes and GraalVM Native Image. Targets the same developer segment as Helidon with similar startup/memory performance claims and MicroProfile support.

Others

• Eclipse MicroProfile: The standards body/specification Helidon MP implements. Not a competitor but a peer-adjacent ecosystem participant that defines the API surface Helidon MP and Open Liberty/Quarkus all implement.
• Apache Camel: Open-source integration framework with strong microservices and messaging patterns. Adjacent rather than direct: relevant to Helidon's reactive messaging and routing capabilities rather than a head-to-head framework competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UChg00-uTTrCMmPsuzUNaZsA
• Xx.com/helidon_project
• LinkedInlinkedin.com/company/helidon

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Helidon