Top 40 Contractors in PSC R428: Industrial Hygienics, FY2025
Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe
The top 10 won 80% of FY2025 PSC R428 contract dollars
Ranking facts
- Contract obligations
- $12,877,277 Net of deobligations, by contracts coded PSC R428
- Contractors
- 44 Parent companies with an obligation
- Largest contractor
- Dgi-Ati II LLC $3.95 million, 27.6% of obligations
- Data as of
Contract actions from FPDS (SAM.gov). How the rankings work · Download all 40 rows as CSV
Full ranking
| Rank | Contractor | Net obligations | Share | Trend |
|---|---|---|---|---|
| 1 |
Dgi-Ati II LLC
Top agencies
|
$3,952,608 | ||
| 2 |
Cydecor Inc.
Top agencies
|
$2,757,835 | ||
| 3 | $1,753,952 | |||
| 4 |
Cayuse Holdings LLC
Top agencies
|
$840,238 | ||
| 5 | $417,220 | |||
| 6 |
Hazair Inc.
Top agencies
|
$406,831 | ||
| 7 |
Cfol International Inc.
Top agencies
|
$374,038 | ||
| 8 |
Aehs Incorporated
Top agencies
|
$332,429 | ||
| 9 |
The Glocoms Group Inc.
Top agencies
|
$319,797 | ||
| 10 |
JH1 Consultants, LLC
Top agencies
|
$249,531 | ||
| 11 |
Cenpec, LLC
Top agencies
|
$231,189 | ||
| 12 |
Aurora Industrial Hygiene
Top agencies
|
$213,180 | ||
| 13 |
Rogue Industries LLC
Top agencies
|
$206,915 | ||
| 14 |
Pika International Inc.
Top agencies
|
$184,547 | ||
| 15 | $168,994 | |||
| 16 |
Bonus Environmental LLC
Top agencies
|
$129,850 | ||
| 17 | $113,170 | |||
| 18 | $109,605 | |||
| 19 |
Phase Associates LLC
Top agencies
|
$99,679 | ||
| 20 | $80,082 | |||
| 21 | $78,434 | |||
| 22 | $53,861 | |||
| 23 | $52,380 | |||
| 24 | $48,967 | |||
| 25 | $48,250 | |||
| 26 | $47,335 | |||
| 27 |
Pinyon Environmental Inc.
Top agencies
|
$40,330 | ||
| 28 |
Singleton Karen
Top agencies
|
$38,700 | ||
| 29 |
Stericycle Inc
Top agencies
|
$34,871 | ||
| 30 | $33,312 | |||
| 31 |
JWJ Consulting, LLC
Top agencies
|
$30,700 | ||
| 32 | $22,155 | |||
| 33 |
Arc Environmental, LLC
Top agencies
|
$14,824 | ||
| 34 | $14,040 | |||
| 35 |
Yellow Bridge LLC
Top agencies
|
$11,492 | ||
| 36 |
QTS Group LLC
Top agencies
|
$11,100 | ||
| 37 | $10,968 | |||
| 38 | $9,001 | |||
| 39 |
TECH Scan Inc.
Top agencies
|
$2,720 | ||
| 40 | $2,000 |
Show 15 more
40 of 44 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 $14.3 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. 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.
- Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
- Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
- 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 R428 contractors in FY2025?
1. Dgi-Ati II LLC ($3.95M), 2. Cydecor Inc. ($2.76M), 3. Consolidated Safety Services Incorporated ($1.75M), 4. Cayuse Holdings LLC ($840K), 5. Mabbett & Associates, Inc. ($417K), 6. Hazair Inc. ($407K), 7. Cfol International Inc. ($374K), 8. Aehs Incorporated ($332K), 9. The Glocoms Group Inc. ($320K), 10. JH1 Consultants, LLC ($250K).
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