Pfizer tags http://acquia.com/blog/drupal-pfizer#comment-638
Fiercebiotech
EBD group http://www.ebdgroup.com/partneringnews/?q=node/128
check top 10 pharma/biotech names in drupal profiles "worked for" list

About the Author
Kristof van Tomme
Kristof Van Tomme is an open source strategist and architect. He is the CEO and co-founder of Pronovix. He’s got a degree in bioengineering and is a regular speaker at conferences in the API, developer relations, and technical writing communities. He is the host of the Developer Success & the Business of APIs and the API Resilience podcasts.