This is another obvious choice. Specialized Bicycle is located in Morgan Hill, Calif., and has been in the bicycle business since 1974. Its headquarters has the bike storage (see photo) and shower and locker facilities that you might expect from a truly bike-friendly company, but Specialized takes it an extra step, paying employees $1 for every one-way bike commute they make.
It's not a ton of cash, but it adds up to a fun-enough amount over the course of a few months. It's also just a nice way to keep score amongst your fellow riders — Specialized employees can track their bicycle commuting stats against other members through the Commuter Club.