The FortranTools suite, consisting of the g95 Fortran compiler,
the Photran graphical user interface,
books in electronic form,
a library of routines for writing GUI applications,
lots of examples,
and additional Fortran tools, such as the COCO preprocessor,
two high precision modules, and many more.
The Tools are available on Windows and Linux.

Absoft--Compiler specialists since 1980.
Absoft supplies quality Fortran 95, C, and C++ compilers for Macintosh,
Windows, and Linux.

Lahey Computer Systems
now has Fortran compilers that work with
Microsoft Visual Studio .NET.
The also have
Fortran 95 compilers for the PC,
as well as Express versions that are full compilers
that have no graphical interface for development.
They also provide
Essential Lahey Fortran 90 (ELF),
a Fortran subset.
NAGWare Fortran 95 compilers are available for Linux, Windows, MacOS, Unix, and VMS. You can buy the Linux versions at the Fortran Store.
Note: You are eligible for academic versions provided the shipping address is to a recognized academic institution or you fax us a copy of your identification card (+1-877-355-6640).
G95, a free Fortran 95 compiler is available.
GNU gfortran, a free Fortran 95 compiler is available.
PathScale has Fortran 95/90/77, C, and C++ compilers.
The Portland Group offers High Performance Fortran and Fortran compilers for several platforms, including Linux, Unix, and Windows.
Hewlett Packard has information about its HP Fortran 95 compiler.
Apogee Software Inc. has Fortran, C, and C++ compilers.
Here is a link to information about SGI compilers.
Information about Fortran compilers (primarily Fortran 90/95) may be found in
f2c
provides, in effect, a free Fortran 77 compiler.
Information about GNU Fortran (g77) may be found
here.
The source may be downladed from
here
Binaries may be downladed from
here.
Watcom provides
open sourced F77, C, and C++ Watcom compilers.
Currently supported platforms are DOS16, DOS32, Win16, Win32, OS/2,
QNX, and Netware.
Information about IBM
XL Fortran and HPF for AIX