Comment Not at the corporate level, but developers do (Score 3, Interesting) 28
The company I work for, which has an IT shop of about 400 people, is very leery about adopting open source software at the enterprise level (except for Apache). Some of us are working to change this, but we have a lot of FUD to overcome.
However, nearly every developer here uses open source tools daily. JUnit and Ant are everywhere, as well as NUnit, NDoc, and NAnt for the
For one project, the dev team created a post-project list of all the software used during development. Out of about 30 programs (including DB, OS, etc), 2/3rds were open source.