Sierra Group Employee Directory
ConstructionCalifornia, United States51-200 Employees
Sierra Group has about 67 employees across 5 continents, most of them in North America. By country, the largest groups are United States Of America (75%), Greece (4%) and Australia (4%). Program & Project Management and Accounting make up over half of the profiles with a known department. Sierra Group's workforce spans 5 departments. Sierra Group's workforce fell 64% between July 2025 and July 2026.