Definitely, there's really no excuse if you're a company. If nothing else it's a moral booster for the employees. I really wish AEDs would get even cheaper so they became ubiquitous outside of work.

In Stockholm there's this system which enables emergence services to send out alerts to people with the proper training and/or equipment in the area of a heart failure.

http://news.ycombinator.com/item?id=4740974