Quest Diagnostics: Number of Employees 2010-2024 | DGX
- Quest Diagnostics total number of employees in 2022 was 49,000, a 0% decline from 2021.
- Quest Diagnostics total number of employees in 2021 was 49,000, a 0% decline from 2020.
- Quest Diagnostics total number of employees in 2020 was 49,000, a 4.26% increase from 2019.