Owner characteristic (2023),Building equipment contractors (%),All industries (%),Difference (points) Business is the owner's primary source of income,84.0,72.0,12.0 "Highest education is trade, technical or vocational school",26.3,5.4,20.9 Highest education is a bachelor's degree,16.5,30.9,-14.4 This is the owner's first business,56.3,48.7,7.6 Prior business was bought by a company or individual,1.4,2.9,-1.5 Carrying on a family business was very important,22.8,18.3,4.5 Born in the U.S.,91.6,80.5,11.1 Women as a share of owners,19.7,31.8,-12.1 Veterans as a share of owners,8.1,5.8,2.3 Firm has one owner (share of firms),57.4,61.0,-3.6 Firm is family-owned (share of firms),30.1,26.1,4.0