2wire is one of such company. There primary work is in embedded domain (DSL routers) but they also have very few java based server products (mainly used as remote management tools for routers). Most developers there use some linux distro (mostly Ubuntu) as primary OS because of the tools required for daily tasks.
2wire India is situated in Pune, Maharashtra. Onkar -- ubuntu-in mailing list ubuntu-in@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-in