Top 100 Contractors in NAICS 62151: Medical and Diagnostic Laboratories, Aug 2025–Jul 2026
Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe
The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 62151: Medical and Diagnostic Laboratories, FY2025.
The top 10 won 42% of NAICS 62151 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $409,127,870 Net of deobligations, by contracts coded NAICS 62151 or a code under it
- Contractors
- 425 Parent companies with an obligation
- Largest contractor
- Laboratory Corporation of America Holdings $73.5 million, 10.8% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $73,495,085 | |||
| 2 | $58,655,016 | |||
| 3 |
Roche Holdings Inc.
Top agencies
|
$29,769,660 | ||
| 4 |
Vetmed Group LLC
|
$28,815,838 | ||
| 5 | $22,346,675 | |||
| 6 |
Center for Disease Detection, LLC
|
$19,945,626 | ||
| 7 | $19,654,539 | |||
| 8 | $13,023,256 | |||
| 9 | $11,353,978 | |||
| 10 | $11,182,661 | |||
| 11 | $9,718,878 | |||
| 12 |
Sonora Quest Laboratories LLC
|
$8,690,361 | ||
| 13 | $6,820,847 | |||
| 14 | $6,424,800 | |||
| 15 | $6,295,677 | |||
| 16 | $5,789,459 | |||
| 17 |
Tempus AI, Inc.
Top agencies
|
$5,493,984 | ||
| 18 | $5,392,073 | |||
| 19 | $5,053,074 | |||
| 20 | $4,998,765 | |||
| 21 |
Ginkgo Bioworks Holdings Inc.
Top agencies
|
$4,471,948 | ||
| 22 | $4,380,166 | |||
| 23 | $4,222,392 | |||
| 24 |
Creative Testing Solutions
Top agencies
|
$3,901,820 | ||
| 25 |
Caredx, Inc.
Top agencies
|
$3,466,416 | ||
| 26 | $3,190,000 | |||
| 27 |
Advanced Imaging Management LLC
|
$3,020,220 | ||
| 28 | $2,936,398 | |||
| 29 | $2,851,300 | |||
| 30 | $2,782,357 | |||
| 31 |
Stanford Health Care
Top agencies
|
$2,457,595 | ||
| 32 | $2,393,689 | |||
| 33 | $2,258,242 | |||
| 34 | $2,242,512 | |||
| 35 |
Propath Services, LLC
Top agencies
|
$2,239,282 | ||
| 36 |
Neogenomics Inc.
Top agencies
|
$2,007,544 | ||
| 37 | $1,980,061 | |||
| 38 | $1,960,920 | |||
| 39 |
Mariano Prime LLC
Top agencies
|
$1,952,614 | ||
| 40 | $1,768,546 | |||
| 41 | $1,739,798 | |||
| 42 | $1,669,468 | |||
| 43 | $1,433,829 | |||
| 44 | $1,430,406 | |||
| 45 | $1,423,287 | |||
| 46 | $1,398,252 | |||
| 47 | $1,392,651 | |||
| 48 |
Avmedical LLC
Top agencies
|
$1,236,750 | ||
| 49 | $1,219,601 | |||
| 50 | $1,180,432 | |||
| 51 | $1,150,324 | |||
| 52 | $1,140,616 | |||
| 53 | $1,136,930 | |||
| 54 | $1,127,390 | |||
| 55 |
Sophia Genetics Inc.
Top agencies
|
$1,119,200 | ||
| 56 | $1,032,000 | |||
| 57 | $1,023,260 | |||
| 58 | $979,811 | |||
| 59 | $970,896 | |||
| 60 |
Insight Health Corp
Top agencies
|
$970,146 | ||
| 61 | $969,838 | |||
| 62 | $938,240 | |||
| 63 | $932,471 | |||
| 64 | $874,496 | |||
| 65 |
Natera Inc.
Top agencies
|
$868,850 | ||
| 66 | $840,808 | |||
| 67 | $758,711 | |||
| 68 | $752,306 | |||
| 69 |
Germfree Laboratories LLC
Top agencies
|
$702,122 | ||
| 70 |
Incyte Pathology, P.S
Top agencies
|
$673,292 | ||
| 71 | $639,393 | |||
| 72 |
Koniag, Inc.
Top agencies
|
$635,530 | ||
| 73 | $613,868 | |||
| 74 |
Hennepin County
Top agencies
|
$595,000 | ||
| 75 | $589,751 | |||
| 76 | $586,348 | |||
| 77 | $564,201 | |||
| 78 | $550,691 | |||
| 79 | $549,240 | |||
| 80 | $535,700 | |||
| 81 |
Wisconsin Diagnostic Laboratories LLC
Top agencies
|
$518,637 | ||
| 82 | $508,380 | |||
| 83 | $506,319 | |||
| 84 |
The Chenega Corporation
Top agencies
|
$502,559 | ||
| 85 |
Fresenius Medical Care Holdings Inc.
Top agencies
|
$502,095 | ||
| 86 | $501,145 | |||
| 87 | $497,670 | |||
| 88 | $490,644 | |||
| 89 | $486,331 | |||
| 90 |
Argent Arc LLC
Top agencies
|
$485,051 | ||
| 91 |
Othram Inc.
Top agencies
|
$474,186 | ||
| 92 | $468,000 | |||
| 93 | $468,000 | |||
| 94 | $458,670 | |||
| 95 |
Aegis Toxicology Sciences Corporation
Top agencies
|
$448,446 | ||
| 96 | $448,058 | |||
| 97 | $446,638 | |||
| 98 | $444,000 | |||
| 99 |
Sysmex America Inc.
Top agencies
|
$437,475 | ||
| 100 | $424,446 |
Show 75 more
100 of 425 contractors listed here. See the rest on GovTribe.
Rankings for the codes under NAICS 62151
| Code | Net obligations | Largest contractor |
|---|---|---|
| 621511 Medical Laboratories | $316,919,426 | Laboratory Corporation of America Holdings |
| 621512 Diagnostic Imaging Centers | $92,208,444 | Vetmed Group LLC |
How this ranking works
- Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
- Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $683 million obligated before deobligations, so they never pass 100%.
- Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
- Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
- Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
- Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
- Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.
Quick answers
Who were the top 10 NAICS 62151 contractors in Aug 2025–Jul 2026?
1. Laboratory Corporation of America Holdings ($73.5M), 2. Quest Diagnostics Incorporated ($58.7M), 3. Roche Holdings Inc. ($29.8M), 4. Vetmed Group LLC ($28.8M), 5. SNA International LLC ($22.3M), 6. Center for Disease Detection, LLC ($19.9M), 7. Valor Network, Inc. ($19.7M), 8. Baylor College of Medicine ($13M), 9. The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. ($11.4M), 10. University of Utah ($11.2M).
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