Winco Window Company
Your description goes here
http://www.wincowindow.com/

Window Managers for X: Window Maker
Window Maker page from a guide to window managers and desktops for the X Window System and Linux/UNIX.
http://www.plig.org/xwinman/wmaker.html

Window Covering Manufacturers Association
WCMA represents window covering manufacturers, assemblers, fabricators, and suppliers involved in manufacturing, assembling, fabricating and supplying blinds, shades, curtain and treatments to the windowcovering industry
http://www.wcmanet.org/

DHTML Window
Click here for a window script constructed using pure DHTML
http://www.dynamicdrive.com/dynamicindex8/dhtmlwindow.htm

Ratpoison Window Manager
A simple Window Manager with no fat library dependencies, no fancy graphics, no window decorations.
http://ratpoison.sourceforge.net/

Leiab
Timber and aluminium window manufacturing.
http://www.leiab.com/

B4Step Window Manager
B4Step is a Window Manager running under X11R6 with a different way to manage window banners. It can use OpenGL routines for animations, is Gnome compliant and has also a sound support.
http://b4step.free.fr/

Preferred Engineering Ltd.
Preferred Engineering is the leading provider of window hardware.
http://www.preferred-eng.com/

Pullman Manufacturing Window Division
Industrial Counterbalances and Historical Window Hardware are products of Pullman Manufacturing Corporation, who has been serving industry with Sash Counterbalances and Window Weights since 1886.
http://pullmanbalances.com/

Quikserv Corp.
Manufacturing and distribution of drive-thru/pass-thru window and drawer systems.
http://www.quikserv.com/