# Who are Quest Diagnostics Incorporated's customers? Who does Quest Diagnostics Incorporated earn revenue from?
Canonical: https://valuechain.wiki/quest-diagnostics · Facet: customers · Updated: 2026-09-24T04:50:47.861951+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Quest Diagnostics Incorporated's confirmed revenue counterparties include UnitedHealth Group Incorporated plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 2 revenue edges, backed by 4 dated sources, 1 of them primary filings (as of 2026-09-24).

### 유나이티드헬스 그룹 (high)  → /unitedhealth-group.md
- note: UnitedHealth Group's insurance subsidiary, UnitedHealthcare, selected Quest as a full-test-menu provider in its 2026 Preferred Lab Network. Quest's 10-K confirms participation, but revenue attributable to this payer is not disclosed.
- [confirms] UnitedHealthcare (EN, ir, published 2026-06-08) https://www.uhcprovider.com/content/dam/provider/docs/public/reports/Preferred-Lab-Network-Frequently-Asked-Questions.pdf: "Quest Diagnostics, Inc."
- [confirms] SEC EDGAR (EN, filing, published 2026-02-26) https://www.sec.gov/Archives/edgar/data/1022079/000102207926000015/dgx-20251231.htm: "The UnitedHealthcare Preferred Lab Network, which chose us to participate."

### 미국 질병통제예방센터 (high)
- note: The CDC awarded five-year contracts to Quest and other laboratories for data covering more than 200 reportable conditions and surge testing capacity. Quest's 10-K confirms that a CDC preparedness contract supported the launch of its H5 avian influenza test.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-26) https://www.sec.gov/Archives/edgar/data/1022079/000102207926000015/dgx-20251231.htm: "based on a preparedness contract from the CDC."
- [confirms] U.S. Centers for Disease Control and Prevention (EN, ir, published 2025-04-23) https://www.cdc.gov/data-modernization/php/stories/cdc-streamlines-access-to-clinical-laboratory-data.html: "CDC awarded five-year contracts to multiple laboratory companies."
- [mentions] Korea Health Industry Development Institute (KO, analysis, published 2022-11-28) https://www.khepi.or.kr/ace/boardDownload.es?bid=0017&list_no=955&seq=1: "Quest developed a method to diagnose influenza and COVID-19 viruses simultaneously."

Reverse side: https://valuechain.wiki/quest-diagnostics/suppliers.md · Ripple: https://valuechain.wiki/quest-diagnostics/ripple.md

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Full node: https://valuechain.wiki/quest-diagnostics.md · JSON: https://valuechain.wiki/quest-diagnostics.json