List of C++ compilers

[blindsiner]

Some compilers that can be downloaded for free (do check their conditions/licenses before attempting commercial use):

Apple C++. It also comes with OS X on the developer tools CD.
Bloodshed Dev-C++. A GCC-based (Mingw) IDE.
Borland C++
Cygwin (GNU C++)
Digital Mars C++
MINGW - "Minimalist GNU for Windows". Another GCC version for Windows including a free (non-GPL) w32api.
DJ Delorie's C++ development system for DOS/Windows (GNU C++)
GNU CC source
IBM C++ for IBM power, System Z, Bluegene, and Cell.
Intel C++ for linux
The LLVM Compiler Infrastructure (based on GCC).
Microsoft Visual C++ 2008 Express edition.
Sun Studio.

Compilers that require payment (some allow free downloads for trial periods):

Borland C++
CodeWarrior C++ (formerly Metrowerks), it comes for many platforms.
Comeau C++ for many platforms
Edison Design Group C++ Front End - used by many C++ compiler suppliers
Green Hills C++ for many embedded systems platforms
HP C++ for Unix and HP C++ for OpenVMS.
Intel C++ for Windows, Linux, and some embedded systems.
Mentor Graphics/Microtec Research C++ for many embedded systems platforms
Microsoft C++
Paradigm C++, for x86 embedded systems
The Portland Group C++ (parallization for Pentiums)
SGI C++, optimizing compiler
Sun C++
WindRiver's Diab C++ used in many embedded systems.

[tummychow]

The official compilers list for this website, which focuses on all the good maintained compilers, is here:
http://www.cplusplus.com/forum/articles/7263/
It's more accurate and curt than yours.
By the way dev is no longer used. wxDev is the preferred standard.
So what makes you an authority on this topic?