Capital IQ: Search by company name and then consult People section of the company profile for a list of professionals and board members. Use Screening options to generate a list based on criteria such as industry and geography.
D&B Hoovers::Click on Find Contacts to get started.
NexisUni: from the menu, select Business. Under Company Search, select Executive Profile..
WRDS: Consult Capital IQ People Intelligence and BoardEx