Read the full article here:
http://www.bikeleague.org/blog/2011/...the-workplace/

By encouraging QBP employees to commute by bike through 2007-2011, the company found the following:

The company experienced a 4.4% reduction in per member per month health care costs associated with an estimated 3-year savings of $170,000
Approximately 100 commuters incurred an estimated 3-year savings of $600,000
The business benefitted with an annual savings of $301,136 in employee productivity.