Medical Industry Products:
McKesson http://www.mckesson.com/en_us/McKesson.com/
ADL Data Systems http://www.adldata.com
Accounting Software:
SBT Accounting
Sage http://www.sagenorthamerica.com/Solutions/Accounting
Visual Accountmate http://www.accountmate.com
Peachtree http://www.peachtree.com/
Membership Management Software