Quest Diagnostics

medical research company
Organization business Q7271456
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Financials

Self-reported XBRL data from 9 annual filings
Revenue
$11.04B
▲ 11.8% YoY FY2025
Net Income
$992.00M
▲ 13.9% YoY FY2025
Assets
$16.23B
▲ 0.4% YoY FY2025
EPS (diluted)
$8.75
▲ 13.8% YoY FY2025
$0.00$3.03B$6.07B$9.10B$12.14B FY2017: $7.40B · NI $772.00M (10.4% margin)FY2018: $7.53B · NI $736.00M (9.8% margin)FY2019: $7.73B · NI $858.00M (11.1% margin)FY2020: $9.44B · NI $1.43B (15.2% margin)FY2021: $10.79B · NI $2.00B (18.5% margin)FY2022: $9.88B · NI $946.00M (9.6% margin)FY2023: $9.25B · NI $854.00M (9.2% margin)FY2024: $9.87B · NI $871.00M (8.8% margin)FY2025: $11.04B · NI $992.00M (9.0% margin) '17'18'19'20'21'22'23'24'25
Revenue Net Income
Source: SEC EDGAR · latest 10-K filed 2025-12-31 · accession 0001022079-26-000015

Quest Diagnostics

Summary

Quest Diagnostics is a business[1]. It ranks in the top 2% of business entities by monthly Wikipedia readership (699 views/month).[2]

Key Facts

  • Quest Diagnostics's field of work was molecular diagnostics[3].
  • Quest Diagnostics's field of work was clinical chemistry[4].
  • Quest Diagnostics is in the country of United States[5].
  • Quest Diagnostics's instance of is recorded as business[6].
  • Quest Diagnostics's instance of is recorded as public company[7].
  • Quest Diagnostics's founder is recorded as Paul A. Brown[8].
  • Quest Diagnostics's headquarters location is recorded as Madison[9].
  • Quest Diagnostics's headquarters location is recorded as Secaucus[10].
  • Quest Diagnostics's chief executive officer is recorded as Steve Rusckowski[11].
  • Quest Diagnostics's ISNI is recorded as 0000000404621752[12].
  • Quest Diagnostics's child organization or unit is recorded as Celera Corporation[13].
  • Quest Diagnostics's part of is recorded as S&P 500[14].
  • Quest Diagnostics's Commons category is recorded as Quest Diagnostics[15].
  • Quest Diagnostics's stock exchange is recorded as New York Stock Exchange[16].
  • Quest Diagnostics's industry is recorded as health care[17].
  • +1967-00-00T00:00:00Z marks the founding of Quest Diagnostics[18].
  • Quest Diagnostics's Freebase ID is recorded as /m/055z4_[19].
  • Quest Diagnostics's location of formation is recorded as New York City[20].
  • Quest Diagnostics's significant event is recorded as Quest Diagnostics 2019 data breach[21].
  • Quest Diagnostics's official website is recorded as https://www.questdiagnostics.com/[22].
  • Quest Diagnostics's described at URL is recorded as https://www.forbes.com/companies/quest-diagnostics/[23].
  • Quest Diagnostics's described at URL is recorded as https://fortune.com/fortune500/quest-diagnostics/[24].
  • Quest Diagnostics's described at URL is recorded as https://www.bloomberg.com/quote/DGX:US[25].
  • Quest Diagnostics's described at URL is recorded as https://finance.yahoo.com/q?s=Dgx[26].
  • Quest Diagnostics's Legal Entity Identifier is recorded as 8MCWUBXQ0WE04KMXBX50[27].

Body

Founding

Quest Diagnostics's founder is recorded as Paul A. Brown[8]. +1967-00-00T00:00:00Z marks the founding of it[18]. Its location of formation is recorded as New York City[20].

Identity

Quest Diagnostics's part of is recorded as S&P 500[14].

Leadership

Quest Diagnostics's chief executive officer is recorded as Steve Rusckowski[11].

Operations

Headquarters locations include Madison[9], a borough of New Jersey[28], in United States[29] and Secaucus[10], a town of New Jersey[30], in United States[31], founded in 1900[32]. Quest Diagnostics's child organization or unit is recorded as Celera Corporation[13].

Industry

Quest Diagnostics's industry is recorded as health care[17]. Fields of work include molecular diagnostics[3], a field of study[33] and clinical chemistry[4], a branch of chemistry[34].

Ownership

Quest Diagnostics's stock exchange is recorded as New York Stock Exchange[16].

Why It Matters

Quest Diagnostics ranks in the top 2% of business entities by monthly Wikipedia readership (699 views/month).[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] . wikidata.org.
  2. [6] . wikidata.org.
  3. [7] . Retrieved . wikidata.org.
  4. [3] . Retrieved . wikidata.org.
  5. [4] . Retrieved . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . Retrieved . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . GRID Release 2017-01-10. wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . Polygon.io. Retrieved . finance.yahoo.com. Provenance: wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . publishedreporter.com. Retrieved . publishedreporter.com. Provenance: wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . Polygon.io. Retrieved . wikidata.org.

Inline context (facts about related entities)

  1. [33] . Wikidata. wikidata.org. → on this site
  2. [34] . Wikidata. wikidata.org. → on this site
  3. [28] . Wikidata. wikidata.org. → on this site
  4. [29] . Wikidata. wikidata.org. → on this site
  5. [30] . Wikidata. wikidata.org. → on this site
  6. [31] . Wikidata. wikidata.org. → on this site
  7. [32] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Quest Diagnostics. Retrieved May 5, 2026, from https://4ort.xyz/entity/quest-diagnostics
MLA “Quest Diagnostics.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 May. 2026, https://4ort.xyz/entity/quest-diagnostics.
BibTeX @misc{4ortxyz_quest-diagnostics_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Quest Diagnostics}}, year = {2026}, url = {https://4ort.xyz/entity/quest-diagnostics}, note = {Accessed: 2026-05-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Quest Diagnostics — https://4ort.xyz/entity/quest-diagnostics (retrieved 2026-05-05)

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