Top DOJ medical laboratories contractors
In the 12 months ending Oct 5, 2026, the Department of Justice obligated $7.4M in net prime contract dollars under NAICS 621511, down 40.5% from $12.5M in the preceding 12 months. 16 prime contractors received positive obligations, and 2 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Justice. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOJ contractors for NAICS 621511
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Quest Diagnostics Incorporated | $4.6M | $12.0M | 61.7% | — |
| 2 | Laboratory Corporation of America | $2.2M | $0 | 29.3% | New |
| 3 | The Mclean Hospital Corporation | $264K | $141K | 3.5% | — |
| 4 | Alere Toxicology Services, Inc | $139K | $165K | 1.9% | ▼ 2 |
| 5 | Ande Corp | $90K | $75K | 1.2% | — |
| 6 | Ultrasound Imaging Concepts LLC | $57K | $0 | 0.8% | New |
| 7 | Eurofins Ascend Clinical LLC | $22K | $0 | 0.3% | New |
| 8 | Diagnostic Laboratory of Oklahoma LLC | $18K | $46K | 0.2% | ▼ 1 |
| 9 | Mckesson Corporation | $15K | $9K | 0.2% | ▲ 1 |
| 10 | Neelyx Labs Inc | $15K | $0 | 0.2% | New |
| 11 | Veterans Healthcare Supply Solutions, Inc | $15K | $0 | 0.2% | New |
| 12 | BIO RAD Laboratories Inc | $13K | $15K | 0.2% | ▼ 3 |
| 13 | Olmsted Medical Center | $9K | $8K | 0.1% | ▼ 2 |
| 14 | Great Lakes BIO-Medical Services Inc. | $6K | $0 | 0.1% | New |
| 15 | Seven Corners Inc | $4K | $0 | 0.1% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Laboratory Corporation of America$0 → $2.2M (+$2.2M) · now #2
- The Mclean Hospital Corporation$141K → $264K (+$122K) · now #3
- The University of North Texas Health Science Center at Fort Worth−$66K → $0 (+$66K) · no latest-period obligations
Largest declines
- Quest Diagnostics Incorporated$12.0M → $4.6M (−$7.4M) · now #1
- National Medical Services, Inc.$77K → −$9K (−$87K) · no latest-period obligations
- GE Precision Healthcare LLC$54K → $0 (−$54K) · no latest-period obligations
New to this market
6 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Ultrasound Imaging Concepts LLC | Jun 3, 2026 | $57K |
| Eurofins Ascend Clinical LLC | Jan 12, 2026 | $22K |
| Neelyx Labs Inc | Jun 10, 2026 | $15K |
| Veterans Healthcare Supply Solutions, Inc | Mar 16, 2026 | $15K |
| Great Lakes BIO-Medical Services Inc. | Sep 8, 2026 | $6K |
| Seven Corners Inc | Jul 29, 2026 | $4K |
Where the money comes from
Funding sub-agencies within the Department of Justice, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Federal Prison System / Bureau of Prisons | $7.0M | $12.2M | Down $5.2M (42.8%) |
| Drug Enforcement Administration | $264K | $74K | Up $190K (256.6%) |
| Federal Bureau of Investigation | $129K | $231K | Down $101K (43.9%) |
| Department of Justice | $90K | $74K | Up $16K (21.1%) |
Common questions
Who are the top DOJ contractors for NAICS 621511?
In the latest 12 months, Quest Diagnostics Incorporated ($4.6M), Laboratory Corporation of America ($2.2M), The Mclean Hospital Corporation ($264K) received the most DOJ obligations for medical laboratories.
How concentrated is this market?
The eight largest primes held 99.0% of positive obligations, and Quest Diagnostics Incorporated alone held 61.7%. 6 contractors won their first obligations in this market during the latest 12 months.
Related markets
NAICS 621511 across all agencies
VA · NAICS 621511
$256.4MDoD · NAICS 621511
$125.2MState Department · NAICS 621511
$6.3MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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