QUEST DIAGNOSTICS INCORPORATED — United States · Federal contract register · Supplier record: 1,441 contracts, all years ($1,524,354,254 · Apr 2003 – Oct 2026); $304M since January 2024 (234 contracts · 4 agencies); 2nd rank in the line (of 753 suppliers · 19.9%); 14 agencies never served ($20.7M on the line without QUEST DIAGNOSTICS INCORPORATED).
Assay record ASY-US-02WC22I0PE · Cite as: Assay Systems, “QUEST DIAGNOSTICS INCORPORATED in the USAspending register”, https://assay-systems.com/register/us/quest-diagnostics-incorporated/
1,441
contracts, all years
$1,524,354,254 · Apr 2003 – Oct 2026
$304M
since January 2024
234 contracts · 4 agencies
2nd
rank in the line
of 753 suppliers · 19.9%
14
agencies never served
$20.7M on the line without QUEST DIAGNOSTICS INCORPORATED
Own record by year
2019 onward
$62.2M
$135M
$73.9M
$132M
$75.8M
$107M
$108M
$88.6M
20192020202120222023202420252026
Who buys from QUEST DIAGNOSTICS INCORPORATED
since January 2024
4agencies
$304Mpaid
94.5%top buyer
Department of Veterans Affairs94.5%
$286,771,766
Department of Health and Human Services4.5%
$13,684,047
Department of Justice0.9%
$2,606,766
Department of Defense0.2%
$527,962
Before 2024 only: Department of Homeland Security, Department of Transportation, Department of the Interior.
The line
since January 2024
$1.4Bline value
4,363contracts
21agencies
753suppliers
60.5%held by top ten
Reference laboratory testing (Q301)
$549M
$549M
$303M
202420252026Jan–Sep
2ndof 753 suppliers
$278,758,648QUEST DIAGNOSTICS INCORPORATED in the line
19.9%share of the line
29.9%of $800,906,824 spent by Department of Veterans Affairs
6.4%of $259,768,909 spent by Department of Health and Human Services
75.6%of $26,989,285 spent by Department of Justice
Agencies that buy the line and never bought from QUEST DIAGNOSTICS INCORPORATED
14agencies
94contracts
$20,728,878since January 2024
Court Services and Offender Supervision Agency6 contracts
$7,151,083
Department of State8 contracts
$4,934,793
Department of Labor1 contract
$2,280,000
Department of Agriculture42 contracts
$1,937,806
Executive Office of the President2 contracts
$1,391,038
Department of Energy5 contracts
$1,226,989
Department of Commerce3 contracts
$774,384
Department of the Treasury12 contracts
$378,838
General Services Administration1 contract
$327,268
Smithsonian Institution6 contracts
$130,204
Environmental Protection Agency5 contracts
$113,505
Government Accountability Office1 contract
$38,526
Defense Nuclear Facilities Safety Board1 contract
$26,820
Peace Corps1 contract
$17,625
How the line is bought
by value, since 2024
18%no competition
9%one applicant
0of these to QUEST DIAGNOSTICS INCORPORATED
Competed, several suppliers applied2,549 contracts
Source: USAspending.gov, U.S. Department of the Treasury, Bureau of the Fiscal Service, usaspending.gov, accessed 30 September 2026.The data is available to copy, adapt, redistribute, or otherwise use for non-commercial or for commercial purposes (USAspending.gov, Licensing); no Dun & Bradstreet data is shown.