"In the last 25 years, drug and device makers have displaced the federal government as the primary source of research financing, and industry support is vital to many university research programs. But as corporate research executives recruit the brightest scientists, their brethren in marketing departments have discovered that some of these same scientists can be terrific pitchmen."
* Bayer HealthCare, Diagnostics Division
* BD Medical Diabetes Care
* Eli Lilly and Company
* Lifescan, Inc., a Johnson & Johnson Company
* Merck & Co., Inc.
* Novo Nordisk Inc.
* Pfizer Inc.
* Takeda Pharmaceuticals North America, Inc.
Do your own googling to find out the revenues for those; this may help: Fortune 500 Industry: Pharmaceuticals. Add it up and you probably exceed the combined gross domestic product of half the countries in the United Nations.
Incidentally, I didn't need to google for that list. I found it here, at the top of the page: ADA FY06 Corporate Recognition Program.