Company data
Quest Diagnostics Incorporated employees and revenue per employee
DGX · Medical - Diagnostics & Research · $25.7B market cap
Quest Diagnostics Incorporated had 57,000 employees at the end of fiscal Dec 2025, up 1.8% from a year earlier. Revenue for the year was $11.0B, up 11.8% from a year earlier, or $194K per employee. Revenue and headcount both grew, and revenue grew faster.
Employees
57,000
+1.8% YoY
Revenue
$11.0B
+11.8% YoY
Revenue / employee
$194K
Peer median $380K
Rank in industry
17 of 18
Medical - Diagnostics & Research
Headcount against revenue
Both lines start at 100 in the first year we hold, so you can see which one grew faster.
Hover a year for the numbers.
| Year ending | Employees | Revenue | Per employee | Staff YoY | Revenue YoY |
|---|---|---|---|---|---|
| Dec 2025 | 57,000 | $11.0B | $194K | +1.8% | +11.8% |
| Dec 2024 | 56,000 | $9.87B | $176K | +40.0% | +6.7% |
| Dec 2023 | 40,000 | $9.25B | $231K | +0.0% | -6.4% |
| Dec 2022 | 40,000 | $9.88B | $247K | +0.0% | -8.4% |
| Dec 2021 | 40,000 | $10.8B | $270K | +0.0% | +14.3% |
| Dec 2020 | 40,000 | $9.44B | $236K | -14.9% | +22.1% |
| Dec 2019 | 47,000 | $7.73B | $164K | +2.2% | +2.6% |
| Dec 2018 | 46,000 | $7.53B | $164K | +2.2% | -2.3% |
| Dec 2017 | 45,000 | $7.71B | $171K | +4.7% | +2.6% |
| Dec 2016 | 43,000 | $7.51B | $175K | — | — |
Open roles: we have not matched a verified job board for this company yet.
Quest Diagnostics Incorporated against similar companies
The closest industry peers by revenue, from Medical - Diagnostics & Research.
| Company | Employees | Revenue | Revenue / employee | Shape |
|---|---|---|---|---|
| ILMN Illumina, Inc. | 8,600 | $4.34B | $504K | Contracting |
| DHR Danaher Corporation | 60,000 | $24.6B | $409K | Leaner |
| IDXX IDEXX Laboratories, Inc. | 11,000 | $4.30B | $391K | Leaner |
| A Agilent Technologies, Inc. | 18,100 | $6.95B | $384K | Efficient growth |
| MTD Mettler-Toledo International Inc. | 16,600 | $4.03B | $243K | Leaner |
| CRL Charles River Laboratories International, Inc. | 19,700 | $4.02B | $204K | Contracting |
| LH Labcorp Holdings Inc. | 71,000 | $14.0B | $197K | Efficient growth |
| DGX Quest Diagnostics Incorporated | 57,000 | $11.0B | $194K | Efficient growth |
| IQV IQVIA Holdings Inc. | 93,000 | $16.3B | $175K | Efficient growth |
Questions about Quest Diagnostics Incorporated
- How many employees does Quest Diagnostics Incorporated have?
- Quest Diagnostics Incorporated reported 57,000 employees for the fiscal year ending Dec 2025, in the annual report it filed on February 26, 2026. That is up 1.8% from a year earlier.
- What is Quest Diagnostics Incorporated's revenue per employee?
- Quest Diagnostics Incorporated brought in $11.0B of revenue in fiscal Dec 2025, which is $194K per employee. That ranks 17 of 18 companies we track in Medical - Diagnostics & Research, where the median is $380K.
- Where do these numbers come from?
- Employee counts and revenue are taken from each company's own annual report (Form 10-K). Open roles are counted from the company's public job board where we have matched one. Companies report headcount once a year, sometimes rounded, so small changes can be noise.
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Source: employee counts and revenue as stated in Quest Diagnostics Incorporated's annual reports (Form 10-K), latest filed February 26, 2026. This is data, not a recommendation to buy or sell DGX.