Mark Theissen

Mark Theissen is a respected data warehouse and business intelligence expert. In his 22 years in the industry, Theissen has worked in a variety of key roles including vice president and research lead at META Group (now Gartner Group) for the Enterprise Analytics Practice. In his current position of vice president of professional services at DATAllegro, Theissen helps companies implement affordable and innovative data warehouse solutions using DATAllegro's data warehouse appliances. He may be reached at