32K JVM which does not require an operating system. Provides low-level event management services. [Commercial]

Instructions for how to turn the Psion Java environment into a system capable of compiling Java programs.

Provide custom solutions for embedded Java with their Lightfoot technology.

J2ME compliant Jbed CLDC and Jbed CDC runtime platforms. [Commercial]

PocketPC and Palm Java Virtual Machine.

Licensed under the Sun Community Source Licensing program.

A Java execution environment for wireless devices. By Aplix Corporation. [Commercial]

A Java platform optimized for measurement, control and automation applications. The JControl Virtual Machine's design is as lean as it runs even on 8-bit microprocessors and hence it can compete with common 8-bit-systems.

Implementation of the Java VM as soft processor core in an FPGA for embedded real-time systems. [Free for personal use or for educational purpose]

An abstract window toolkit for the J2ME CLDC KVM. [Free for non-commercial use]

Java based OS for Lego Mindstorms RCX. [Open Source]

J2ME Device Emulator. It's based on JDK 1.1 so allows demonstrate MIDlet based applications in browser applet.

Virtual machine and development tools for embedded platforms, including static linking and native compiling, and a real-time garbage collector. [Commercial]

JVM for 8, 16 and 32-bit platforms. [Commercial]

Provides a Java 1.1.4 implementation for Psion devices.

Clean-room implementation of the Java Virtual Machine that has been specifically designed to run on devices with a small amount of system memory (from as low as 48KB). [Commercial]

Clean-room implementation of J2ME (CLDC+MIDP) virtual machine, South Korea.

Specializes in Java virtual machine and compilation technologies for the embedded device communities.

Offers embedded controller with online demonstration and development kit.

Available for Psion Series 3, MS-DOS and Linux. [Commercial]

Very small Java VM, and firmware replacement for Lego Mindstorms RCX. Progenitor of leJOS. [Open Source, MPL]

Small Java virtual machine aimed at portable devices, but also runnable on desktop computers. [Open source, GPL]

Clean-room, self-contained Virtual Machine targetted towards embedded devices. [Free]