I was a licensed EMT for over 10 years when I worked at Texas Instruments. The company asked for volunteers above and beyond their normal work load. We knew where all the hazards were in the building and could effectively transfer a patient to the Dallas Emergency Squad.
My EMT license has since expired, but I do keep current with my CPR and AED training.
IMHO, the best bet for DMS is to have the same company that stocks our First Aid Kits for their training classes. They offer training classes in First Aid, CPR, and the use of the AED. The folks that come in and re-stock our cabinets already know and understand our facility, the hazards, etc. and could make some good suggestions for training. Now, this training will not be free so the BOD will have to get involved. Still, money well worth being spent.