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G-R foster its clients to use opensource technology which provide interoperability with existing solutions and ease the integration within the system already in place.

Zimbra Collaboration

With over 500 million users Zimbra is the third largest messaging solution worldwide behind MS-Exchange and IBM Lotus Notes.


G-R provides since 2013 GRmail, a hosted Zimbra solution. All our infrastructures are based in Canada to ensure privacy and confidentiality of our clients data.


Drupal 7 is a free software, free as in freedom not as in free drink. Drupal is a friendly and powerful content management platform for building nearly any kind of website: from blogs and micro-sites to collaborative social communities.


Alibi is a software dedicated to independant library to manage their stock, accounting, cash register and much more. Alibi is the only non-opensource product supported by G-R.


G-R team is composed by specialist in numerous opensource products such as Linux operating system (CentOS, Fedora, Ubuntu...), Openstack (Grizzly, Havana, Icehouse...), iptables et nftables, and many more related to opensource system setup.


Gestion-Ressources develops applications that are adapted to your business needs, based on the products and software that we offer. Our approach is centred on quality assurance and customer satisfaction.

About Us

G-R provides IT services since 1995. Our expertise in open collaboration technologies allow us to assist our clients all along their project, from the analysis to the production and to ensure the maintenance and support of their systems.