These ones are technical and philosophical oriented:
- The Guilde I guess it is the oldest association. It is about Free Software. They have monthly conference.
- AlpesJUG a Java User Group association. Also 99,9% Open Source. Monthly conference.
- LOG Laboratoire Ouvert Grenoblois is a HackerSpace
- CARA "Club Agile Rhône Alpes" about Agile methodologies and Lean.
- ACONIT, association pour un conservatoire de l'informatique et de la télématique: About computer museum, but also funny events organization and reflexions about teaching.
- Macintosh Alpes Club about the Apple platform. It seems to be oriented towards professional activities. Monthly conference.
- CCSTI (CENTRE de CULTURE SCIENTIFIQUE TECHNIQUE et INDUSTRIELLE) about culture and science at large. Not only about computer.
- Grilog is an association to promote entrepreneurship and business around software in Grenoble. Like better synergy between research and industry or helping start-up. They have a huge number of partners.
- ADIRA : Association pour le Développement de l'Informatique en région Rhône-Alpes They could add more associations to their list.
On LinkedIN there is also a "Grenoble Network" group.
I am sure that I miss many association. I know that they have different goals and they may not want to be part of some network. But I feel that we are missing something, being so disconnected.