Top 47 Contractors in PSC H946: Other Quality Control, Testing and Inspection Services: Water Purification and Sewage Treatment 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 H946: Other Quality Control, Testing and Inspection Services: Water Purification and Sewage Treatment Equipment, FY2025.
The top 10 won 72% of PSC H946 contract dollars from August 2025 through July 2026
Ranking facts
- Contract obligations
- $5,717,448 Net of deobligations, by contracts coded PSC H946
- Contractors
- 48 Parent companies with an obligation
- Largest contractor
- Solid Blend Technologies, Inc. $1.06 million, 17.5% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 47 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 | $1,061,617 | |||
| 2 | $959,923 | |||
| 3 | $805,630 | |||
| 4 |
Coventina Water, LLC
Top agencies
|
$435,603 | ||
| 5 | $296,759 | |||
| 6 | $190,903 | |||
| 7 | $179,103 | |||
| 8 |
Tetra Tech, Inc.
Top agencies
|
$166,357 | ||
| 9 | $141,840 | |||
| 10 |
Phigenics LLC
|
$138,020 | ||
| 11 |
Foso Construction LLC
Top agencies
|
$106,952 | ||
| 12 |
Ecolab Inc.
Top agencies
|
$106,048 | ||
| 13 |
HGS Engineering Inc.
Top agencies
|
$98,283 | ||
| 14 |
Chugach Consolidated Solutions LLC
Top agencies
|
$97,670 | ||
| 15 | $96,140 | |||
| 16 | $85,237 | |||
| 17 | $84,428 | |||
| 18 |
Reworld Holding Corporation
Top agencies
|
$79,412 | ||
| 19 |
Mendez Group, Inc.
Top agencies
|
$68,669 | ||
| 20 | $66,024 | |||
| 21 |
D & D Laboratory LLC
Top agencies
|
$61,455 | ||
| 22 |
Warrior Dynamics LLC
Top agencies
|
$59,929 | ||
| 23 | $57,120 | |||
| 24 |
Sarandrea Associates Group Corp
Top agencies
|
$55,356 | ||
| 25 | $46,080 | |||
| 26 |
Hannah Industries Inc.
Top agencies
|
$40,932 | ||
| 27 | $39,260 | |||
| 28 |
Fredericktowne Labs Inc.
Top agencies
|
$30,698 | ||
| 29 |
Teklab Inc.
Top agencies
|
$25,330 | ||
| 30 | $24,900 | |||
| 31 |
Venergy Group LLC
Top agencies
|
$24,414 | ||
| 32 | $16,891 | |||
| 33 |
BCI Services Inc.
Top agencies
|
$14,800 | ||
| 34 |
SMT Construction PVT Ltd
Top agencies
|
$14,071 | ||
| 35 |
Hunter-Prell Co
Top agencies
|
$10,151 | ||
| 36 |
Environmental Chemists Inc.
Top agencies
|
$9,910 | ||
| 37 | $9,000 | |||
| 38 |
MGI Inc.
Top agencies
|
$8,290 | ||
| 39 | $7,500 | |||
| 40 | $6,230 | |||
| 41 | $5,900 | |||
| 42 |
NCH Corporation
Top agencies
|
$4,746 | ||
| 43 |
Consor Engineers LLC
Top agencies
|
$4,400 | ||
| 44 |
JD Tierra Verde LLC
Top agencies
|
$4,134 | ||
| 45 |
Water Check, Inc.
Top agencies
|
$2,750 | ||
| 46 |
Cwm Environmental LLC
Top agencies
|
$1,430 | ||
| 47 | $1,201 |
Show 22 more
47 of 48 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 $6.07 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 H946 contractors in Aug 2025–Jul 2026?
1. Solid Blend Technologies, Inc. ($1.06M), 2. Enrec Enterprises Inc. ($960K), 3. Premier Water & Energy Technology Inc. ($806K), 4. Coventina Water, LLC ($436K), 5. Aviate Enterprises, Inc. ($297K), 6. RLM Government Services LLC ($191K), 7. Hyperion Biotechnology, Inc. ($179K), 8. Tetra Tech, Inc. ($166K), 9. Water & Energy Systems Technology, Inc. ($142K), 10. Phigenics LLC ($138K).
On GovTribe
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