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/

ProFactor Software
- Provider of productivity tools for C and C++ programmers. Product information and 14-day trials. Currently featuring a source code formatter.
- http://www.profactor.co.uk/

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

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

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

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

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

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

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

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

J.M.K S.F. Software Technologies
- Vendor of DOS and Linux scripting languages including RapidBATCH and Turbo PL.
- http://www.jmksf.de/

HP InfoTech S.R.L.
- Makes CodeVisionAVR C compiler, integrated development environment (IDE), automatic program generator, ChipBlasterAVR in-system programmer, code wizard, for Atmel AVR microcontrollers. [commercial]
- http://www.hpinfotech.ro/

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

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

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/

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

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