Vendor of 8051 development tools  
   C Compiler for 8051, Avr, Evaluation Boards, Single Board Computer, Embedded Softwares, Simulators
   http://www.spjsystems.com/

CodeScape  
   Development and debug tools for STMicro ST40, Hitachi SH4, SH3, SH3-DSP, SH2-DSP and SH2.
   http://www.codescape.com/

DDC-I  
   A supplier of Ada, C, C++, JOVIAL and multi-language compilers for safety critical embedded software applications. DDC-I also provides Consulting, Training and FAA Certification.
   http://www.ddci.com/

Green Hills Software  
   Compilers and Software Development Tools for Embedded Applications. MULTI integrated development environment, and C, C++, EC++, and Ada optimizing compilers, for embedded applications, target powerpc, 68k, x86, mips, sh, v800, alpha, i960, sparc, and arm.
   http://www.ghs.com/

Avocet Systems  
   C compilers, macro-assemblers, simulators, RTOS, and in-circuit emulators for embedded processors.
   http://www.avocetsystems.com/

Pennington Systems Incorporated  
   develops and markets software engineering automation software, including XTRAN, our expert system for analyzing, translating, and re-engineering assemblers, 3GLS, 4GLS, command languages, database languages, and text.
   http://WWW.Pennington.com/

Micro-Processor Services, Inc.  
   Software translators, converters, and translation services.
   http://www.mpsinc.com/

HP InfoTech srl  
   CodeVisionAVR - Windows-based C compiler, Code Wizard and In-System Programmer for Atmel AVR microcontrollers
   http://www.hpinfotech.ro/

J.M.K SOFTWARE FACTORY  
   Vendor of DOS and Linux scripting languages including RapidBATCH and TURBO PL
   http://www.jmksf.de/

Cygnus Solutions (division of RedHat)  
   Compilers and development tools for embedded systems, support for open source GNU compilers.
   http://www.redhat.com/products/cygnus.html

Edison Design Group  
   Compiler front ends for the OEM market. Company profile, customer list, descriptions of Java, C++, FORTRAN compilers.
   http://edg.com/

CodePlay  
   A developer of highly optimizing compilers.
   http://www.codeplay.com/

Digital Mars C and C++ Compilers  
   C and C++ compilers for Win32, Win16, and DOS.
   http://www.digitalmars.com/

Excelsior, LLC  
   Package and bespoke compilers, cross-compilers, source to source translators, debuggers, and other tools for various languages, CPUs, and operating systems. Manufacturer of the JET Java to native code compiler.
   http://www.excelsior-usa.com/home.html

Bloodshed Software  
   Free C, C, Pascal environment and compilers. Programmers resources: Delphi, C, Pascal. Freeware.
   http://www.bloodshed.net/

Code On The Fly  
   Aim to foster your understanding of Dynamic Compiling, Dynamic Optimization and Code Morphing technologies.
   http://www.codeonthefly.com/

ATAIR Software  
   Provider of C compiler, assembler and other development tools for PD77016 DSP
   http://www.atair-software.com/

Compiler Consulting Resources  
   Individuals and Companies that Provide Compiler Consulting Services.
   http://www.compilerconnection.com/consultants/consultants.htm

Semantic Designs  
   Provides front ends (parsers/analyzers and transformation tools) for conventional programming languages such as C, C++, COBOL and Java. Links to description of underlying DMS engine and related tools.
   http://www.semdesigns.com/Products/FrontEnds/index.html

Absoft  
   Workstation, cluster, and desktop Fortran, C and C++ compilers and development tools.
   http://www.absoft.com/