STW are individuals who use science, technology, engineering, and mathematics (STEM) knowledge and skills in their jobs. These workers typically have educational attainment levels such as high school diploma, some college, or associate’s degree.

STW employment is concentrated in three industry sectors: construction, manufacturing, and medical industries.  These industry groups account for some 60% of STW employment. STW employment intensity, defined by an industry’s STW employment as a proportion of its total employment, is highest in construction, mining, quarrying, oil and gas extraction, and utilities.