Top 42 Contractors in PSC H166: Quality Control Services: Instruments and Laboratory Equipment, 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 PSC H166: Quality Control Services: Instruments and Laboratory Equipment, FY2025.
The top 10 won 68% of PSC H166 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $3,257,292 Net of deobligations, by contracts coded PSC H166
- Contractors
- 45 Parent companies with an obligation
- Largest contractor
- Health Systems Sciences, LLC $689 thousand, 18.5% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 42 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $688,871 | |||
| 2 | $431,101 | |||
| 3 | $389,056 | |||
| 4 |
Cubrc, Inc.
Top agencies
|
$241,735 | ||
| 5 |
Tech62 Inc.
Top agencies
|
$237,146 | ||
| 6 | $222,622 | |||
| 7 |
HGS Engineering Inc.
Top agencies
|
$87,077 | ||
| 8 |
Onset Computer Corporation
Top agencies
|
$86,943 | ||
| 9 |
Thermo Fisher Scientific Inc.
Top agencies
|
$83,122 | ||
| 10 |
Sysmex America Inc.
Top agencies
|
$77,355 | ||
| 11 |
Safety Plus LLC
Top agencies
|
$69,580 | ||
| 12 | $66,605 | |||
| 13 |
Danaher Corporation
|
$64,323 | ||
| 14 |
Ametek Inc.
Top agencies
|
$58,056 | ||
| 15 |
US Micro-Solutions Inc.
Top agencies
|
$52,845 | ||
| 16 |
Apogee Instruments, Inc.
Top agencies
|
$48,400 | ||
| 17 |
Rees Scientific Corporation
Top agencies
|
$47,790 | ||
| 18 |
Winergy LLC
Top agencies
|
$41,821 | ||
| 19 |
Ionflight LLC
Top agencies
|
$39,000 | ||
| 20 | $37,239 | |||
| 21 | $36,991 | |||
| 22 |
Nexus Group, LLC
Top agencies
|
$28,800 | ||
| 23 |
A-Bear Consult LLC
Top agencies
|
$23,800 | ||
| 24 |
Shibamoto & Co.,Ltd.
Top agencies
|
$22,600 | ||
| 25 | $22,428 | |||
| 26 | $16,157 | |||
| 27 | $15,100 | |||
| 28 |
Getinge USA Sales, LLC
Top agencies
|
$15,081 | ||
| 29 |
Assured Bio Labs, LLC
Top agencies
|
$14,989 | ||
| 30 | $13,325 | |||
| 31 |
Fortive Corporation
Top agencies
|
$11,708 | ||
| 32 | $11,392 | |||
| 33 |
Brinkmann Instruments Inc.
Top agencies
|
$11,318 | ||
| 34 |
Ronnie Tomsick JR
Top agencies
|
$11,270 | ||
| 35 |
Instrumentation Services Inc
Top agencies
|
$9,750 | ||
| 36 |
Nsca, LLC
Top agencies
|
$8,509 | ||
| 37 |
Jasco Support Co Ltd
Top agencies
|
$7,066 | ||
| 38 | $7,000 | |||
| 39 |
Whesco Group Inc.
Top agencies
|
$6,450 | ||
| 40 | $5,660 | |||
| 41 | $4,160 | |||
| 42 | $3,551 |
Show 17 more
42 of 45 contractors listed here. See the rest on GovTribe.
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 $3.73 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 PSC H166 contractors in Aug 2025–Jul 2026?
1. Health Systems Sciences, LLC ($689K), 2. Quest Diagnostics Incorporated ($431K), 3. Lancaster Foundry Supply Company Inc. ($389K), 4. Cubrc, Inc. ($242K), 5. Tech62 Inc. ($237K), 6. Advanced Monitoring Methods LLC ($223K), 7. HGS Engineering Inc. ($87.1K), 8. Onset Computer Corporation ($86.9K), 9. Thermo Fisher Scientific Inc. ($83.1K), 10. Sysmex America Inc. ($77.4K).
On GovTribe
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