Simple Groupware is Free Software released under the GNU/GPL License Version 2.

Unfortunately, there are some companies that do not respect the GPL and/or alter the copyright. It is recommend to make NO DEALINGS with these companies.

Here are some examples:

Homepage(s): http://www.danswers.com/
Violator: D Answer System Co.,Ltd.
Violation: Removes Simple Groupware Copyright by Thomas Bley on login screen, visual rebranding from Simple Groupware to D-Groupware
Detected: 06/2009
Available for public: http://61.91.253.215/intranet/bin/index.php, http://61.91.253.215/demo/bin/index.php

Homepage(s): http://www.mobilioo.com/fr/
Violator: Michel Haen
Violation: Claims to be a fork, but only alters the copyright, removes visual appearance of the copyright
Detected: 11/2008, 12/2008, 01/2009, 02/2009
Available for public: http://www.mobilioo.com/fr/

Page content:
Powered by mobilioo, Copyright (C) 2008-2009 mobilioo

This website is brought to you by mobilioo
mobilioo is an open source Groupware created by Michel Haen and licensed under GNU GPL v2.
mobilioo is copyright 2009-2010 by Michel Haen. Extensions and translations are copyright of their respective owners.
More information and documentation at http://www.mobilioo.com/

This website is powored by Simple Groupware
Simple Groupware is an open source Groupware and Web Application Framework created by Thomas Bley and licensed under GNU GPL v2.
Simple Groupware is copyright 2002-2008 by Thomas Bley. Extensions and translations are copyright of their respective owners.
More information and documentation at http://www.simple-groupware.de/

Homepage(s): http://www.evermorejv.com
Company: Evermore Joint Ventures
Violation: Removes Simple Groupware Copyright by Thomas Bley, removes all visual GPL hints, complete rebranding to "Evermore Joing Ventures Groupware System", publishes video claiming Simple Groupware is made by Evermore Joing Ventures
Detected: 08/2009, 09/2009

Available for public: http://www.evermorehq.com, http://www.evermorehq.com/tutorials/

Homepage(s): http://www.orentos.com/productos/ovir, http://www.cicof.net, http://www.orentos.com/productos/oficinavirtual/
Company: Orentos S.L.
Violation: Claims to be a fork, but only alters the copyright
Detected: 04/2008, 05/2008, 07/2008, 09/2008

Page content:
This website is brought to you by OVir
OVir is an open source Groupware and Web Application Framework fork of Simple Groupware and licensed under GNU GPL v2.
OVir is copyright 2008 by Orentos S.L.
Simple Groupware is copyright 2002-2008 by Thomas Bley.
Extensions and translations are copyright of their respective owners.

This website is brought to you by Oficina Virtual
Oficina Virtual is an open source Groupware and Web Application Framework fork of Simple Groupware and licensed under GNU GPL v2.
Oficina Virtual is copyright 2008 by Carlos Paya Diaz.
Simple Groupware is copyright 2002-2008 by Thomas Bley.
Extensions and translations are copyright of their respective owners.

Homepage(s): http://www.cicof.net/
Company: Cicof, S.L.
Violation: Removes Simple Groupware Copyright by Thomas Bley
Detected: 01/2008

Available for public: http://intranet.cicof.net/bin/index.php

Homepage(s): http://www.orentos.com/productos/ovir, http://www.cicof.net, http://www.orentos.com/productos/oficinavirtual/
Company: Orentos S.L.
Violation: Completely removes Simple Groupware Copyright by Thomas Bley
Detected: 04/2008
Available for public: http://oficinavirtual.cicof.net/docs/about.html

Page content:

/**************************************************************************\
* OVir                                                                     *
* http://www.orentos.com/productos/ovir/                                   *
* Copyright (C) 2008 por Orentos S.L.                                      *
* ------------------------------------------------------------------------ *
*  This program is free software; you can redistribute it and/or           *
*  modify it under the terms of the GNU General Public License Version 2   *
...

Original:

/**************************************************************************\
* Simple Groupware 0.404                                                   *
* http://www.simple-groupware.de                                           *
* Copyright (C) 2002-2008 by Thomas Bley                                   *
* ------------------------------------------------------------------------ *
*  This program is free software; you can redistribute it and/or           *
*  modify it under the terms of the GNU General Public License Version 2   *
...

Homepage(s): http://checkdemo.co.uk/
Company: car4u
Violation: Removes Simple Groupware Copyright and GPL completely
Detected: 05/2008
Available for public: http://checkdemo.co.uk/groupware/bin/index.php

Homepage(s): http://kinnacorp.com/
Company: KinnaCorp Solutions
Violation: Removes Simple Groupware Copyright and GPL completely
Detected: 05/2008
Page content: Powered by Kinnacorp Solutions, Copyright (C) 2008.

Homepage(s): http://www.enstyles.com
Company: [N] Style
Violation: Removes Simple Groupware Copyright by Thomas Bley
Detected: 01/2008
Page content: Powered by eNS Groupware, Copyright (C) 2002-2007 by [N] Style.

Page content:
This website is brought to you by eNS Groupware
eNS Groupware is an open source Groupware and Web Application Framework created by Thomas Bley and licensed under GNU GPL v2.
eNS Groupware is copyright 2002-2007 by Thomas Bley. Extensions and translations are copyright of their respective owners.
More information and documentation at http://www.enstyles.com/

Homepage(s): http://www.fns.finances.gouv.ci
Company: FNS
Violation: Removes Simple Groupware Copyright by Thomas Bley
Detected: 04/2008
Page content: FNS Groupware, Copyright (C) 2007.