In the observed period the greatest number of persons were employed in architectural and engineering activities, technical testing and analysis; in 2014 15,240, which is 27.8% of all persons employed in professional, scientific and technical activities.
Med temi dejavnostmi so v opazovanem obdobju po številu oseb, ki delajo, prevladovale dejavnosti arhitekturno in tehnično projektiranje ter tehnično preizkušanje in analiziranje; v letu 2014 je v teh dejavnostih delalo 15.240 oseb ali 27,8 % od vseh oseb, ki so delale v strokovnih, znanstvenih in tehničnih dejavnostih.