Quest Diagnostics Incorporated
Statements
Segments
US companies must disclose in their mandatory reports how revenue breaks down across business segments, regions and product lines. We read that breakdown for you straight from the annual and quarterly reports (10-K and 10-Q) of Quest Diagnostics Incorporated (DGX). It shows which part of the business is growing — and which one is holding it back.
Revenue by business segment
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| DIS business | $9.14B 96.8% | $10.49B 97.3% · +14.8% | $9.61B 97.2% · -8.4% | $8.98B 97.0% · -6.6% | $9.61B 97.4% · +7.1% | $10.79B 97.7% · +12.2% |
| All other operating segments | $298.0M 3.2% | $294.0M 2.7% · -1.3% | $274.0M 2.8% · -6.8% | $276.0M 3.0% · +0.7% | $258.0M 2.6% · -6.5% | $250.0M 2.3% · -3.1% |
| General corporate income (expenses), Net | – | – | – | – | – | – |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| DIS business | $2.20B 24.1% | $2.65B 25.2% | $1.70B 17.7% | $1.55B 17.2% | $1.63B 17.0% | $1.83B 17.0% |
| All other operating segments | $39.0M 13.1% | $29.0M 9.9% | $20.0M 7.3% | $34.0M 12.3% | $33.0M 12.8% | $32.0M 12.8% |
| General corporate income (expenses), Net | -$269.0M | -$294.0M | -$296.0M | -$319.0M | -$317.0M | -$305.0M |
Large figure: segment operating income. Below it the margin, that is operating income measured against the revenue of the same segment.
Segment and region names are the ones the company itself uses and are shown as reported. Change and share refer to revenue.
Data as of: August 7, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q) · Segment figures: SEC EDGAR (10-K/10-Q reports)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.