Non-salary data referenced in the Salary Guide is based on insights from Robert Half compensation and benefits leaders and online surveys developed by Robert Half and conducted by an independent research firm. Respondents include hiring managers and workers from small (10-99 employees), midsize (100-999 employees) and large (1,000-plus employees) private, publicly listed and public sector organizations across the United States. Executive compensation bonus analysis is based on Robert Half executive placements across a 12-month period.