Top DoD medical laboratories contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $125.2M in net prime contract dollars under NAICS 621511, up 0.7% from $124.3M in the preceding 12 months. 82 prime contractors received positive obligations, and 3 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD 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 | Laboratory Corporation of America | $75.4M | $56.9M | 59.5% | — |
| 2 | SNA International LLC | $18.5M | $17.8M | 14.6% | — |
| 3 | Center for Disease Detection, LLC | $13.6M | $11.5M | 10.7% | ▲ 1 |
| 4 | Creative Testing Solutions | $2.9M | $3.6M | 2.3% | ▲ 1 |
| 5 | Pembrooke Occupational Health, Inc. | $2.4M | $2.9M | 1.9% | ▲ 1 |
| 6 | Mariano Prime LLC | $2.0M | $1.5M | 1.5% | ▲ 2 |
| 7 | NWT Inc. | $1.4M | $1.4M | 1.1% | ▲ 2 |
| 8 | Bloodworks | $1.2M | $1.4M | 1.0% | ▲ 2 |
| 9 | Public Health, California Department of | $971K | $1.0M | 0.8% | ▲ 2 |
| 10 | Department of General Services Virginia | $549K | $607K | 0.4% | ▲ 4 |
| 11 | Chenega TRI-Services, LLC | $503K | $490K | 0.4% | ▲ 5 |
| 12 | Exact Sciences Corporation | $490K | $660K | 0.4% | ▲ 1 |
| 13 | Koniag Technology and Infrastructure Solutions, LLC | $470K | $188K | 0.4% | ▲ 18 |
| 14 | Bioscientia Institut für Medizinische Diagnostik Gmbh | $407K | $330K | 0.3% | ▲ 6 |
| 15 | Qualtex Laboratories | $406K | −$379K | 0.3% | 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$56.9M → $75.4M (+$18.6M) · now #1
- Center for Disease Detection, LLC$11.5M → $13.6M (+$2.1M) · now #3
- Qualtex Laboratories−$379K → $406K (+$785K) · now #15
Largest declines
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc.$12.0M → −$1.1M (−$13.1M) · no latest-period obligations
- Tatitlek Federal Services LLC$2.9M → $0 (−$2.9M) · no latest-period obligations
- Sophia Genetics, Inc.$731K → $0 (−$731K) · no latest-period obligations
New to this market
7 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Mako Medical Laboratories LLC | May 21, 2026 | $117K |
| Pennsylvania Specialty Pathology, LLC | Nov 25, 2025 | $57K |
| I-2-I Solutions, Inc. | Dec 9, 2025 | $56K |
| Menzies School of Health Research | Feb 11, 2026 | $40K |
| Oxgen Import LLC | Jul 13, 2026 | $32K |
| Imperial Health, LLC | Mar 3, 2026 | $32K |
| The Trustees of Columbia University in the City of New York | Jul 17, 2026 | $29K |
Where the money comes from
Funding sub-agencies within the Department of Defense, 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 |
|---|---|---|---|
| Defense Health Agency | $92.5M | $84.7M | Up $7.7M (9.1%) |
| Defense Prisoner of War/Missing Personnel Office | $18.5M | $17.8M | Up $672K (3.8%) |
| Department of the Navy | $8.0M | $6.8M | Up $1.3M (18.5%) |
| Department of the Army | $3.2M | $12.3M | Down $9.2M (74.3%) |
| Immediate Office of the Secretary of Defense | $2.4M | $2.9M | Down $540K (18.4%) |
| Department of the Air Force | $433K | −$283K | Up $716K (253.1%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| N0018926FZ035 | Center for Disease Detection, LLC MONTHLY TESTING | $7.8M | Dec 19, 2026 |
| W912HQ24F0026 | NWT Inc. ELECTRIC COSTS CUDE BUILDING - BASE YEAR | $4.3M | Dec 31, 2026 |
| HQ003425C0015 | Pembrooke Occupational Health, Inc. CIVILIAN DRUG FREE WORKPLACE COLLECTIONS AND MEDICAL REVIEW SUPPORT SERVICES. | $7.2M | Feb 19, 2027 |
| W81K0426FA184 | Center for Disease Detection, LLC PROVIDE MEDICAL LABORATORY TESTING SERVICES FOR THE DETECTION OF ANTIGEN AND ANTIBODIES OF HUMAN IMMUNODEFICIENCY VIRUS(ES) (HIV), HEPATITIS B SURFACE ANTIBODY (HBSAB), HEPATITIS… | $4.7M | Feb 27, 2027 |
| HT001422C0008 | Chenega TRI-Services, LLC HISTOPATHOLOGY TECHNOLOGIST AND CLINICAL CHEMIST SERVICES | $2.4M | Feb 28, 2027 |
| W81K0426FA217 | Laboratory Corporation of America REFERENCE LAB FY26 TASK ORDER - BETHESDA | $2.3M | Mar 31, 2027 |
| W81K0426FA088 | Laboratory Corporation of America REFERENCE LAB FY26 TASK ORDER - SAN DIEGO | $6.1M | Mar 31, 2027 |
| W81K0426FA314 | Laboratory Corporation of America FY26 REFERENCE LAB - PORTSMOUTH VA (30 JUNE 2026 THROUGH 31 MARCH 2027) | $3.4M | Mar 31, 2027 |
| W81K0026FA133 | Laboratory Corporation of America DPALS REFERENCE TESTING SERVICES | $7.6M | Mar 31, 2027 |
| HQ003422C0053 | SNA International LLC LABORATORY SUPPORT PROGRAM - FFP LOE | $82.0M | May 20, 2027 |
Common questions
Who are the top DoD contractors for NAICS 621511?
In the latest 12 months, Laboratory Corporation of America ($75.4M), SNA International LLC ($18.5M), Center for Disease Detection, LLC ($13.6M) received the most DoD obligations for medical laboratories.
How concentrated is this market?
The eight largest primes held 92.7% of positive obligations, and Laboratory Corporation of America alone held 59.5%. 7 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 621511 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is N0018926FZ035 (Center for Disease Detection, LLC, $7.8M obligated), ending Dec 19, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$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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