SugarCRM Inc., the world’s leading provider of commercial open source customer relationship management (CRM) software became one of the first adopters of GPLv3. The upcoming release of Sugar Community Edition 5.0 will be licensed under the new Version 3 of the GNU General Public License (GPL). GPLv3 was released recently by the FSF as new license for free and open source softwares.
SugarCRM's also has Professional and Enterprise edition which remain under commercial licenses and is said to have a good customer base. The software is well know to easily adapt to any business environment by offering a more flexible, cost-effective alternative than proprietary applications. The major reason for this shift may be because the company used Mozilla-derived license, which is not a recognized OSI-approved open source license.
For more details check out the company's Press release and FAQ!