Top 37 Contractors in PSC 4630: Sewage Treatment Equipment, FY2025

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 95% of FY2025 PSC 4630 contract dollars

Ranking facts

Contract obligations
$27,311,230 Net of deobligations, by contracts coded PSC 4630
Contractors
38 Parent companies with an obligation
Largest contractor
Sunstate Environmental Services Inc. $17.5 million, 63.8% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 37 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $17,520,666
Rank history: not on the FY2021–FY2024 lists; new.
2
Evac North America Inc 2 awardees, including Allied Marine Services LLC
$6,900,537
Rank history: not on the FY2021–FY2022 lists, #28 in FY2023 and #1 in FY2024; down 1 since FY2024.
3 $450,260
Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 1 since FY2024.
4 $449,708
Rank history: not on the FY2021–FY2024 lists; new.
5 $236,800
Rank history: not on the FY2021–FY2024 lists; new.
6
JWC Environmental Inc.
$132,331
Rank history: #15 in FY2021, #13 in FY2022, #5 in FY2023 and #14 in FY2024; up 8 since FY2024.
7
Spaires Inc.
$127,841
Rank history: not on the FY2021–FY2024 lists; new.
8 $124,736
Rank history: #23 in FY2021, #11 in FY2022, #17 in FY2023 and #19 in FY2024; up 11 since FY2024.
9 $124,705
Rank history: not on the FY2021 list, #6 in FY2022 and not on the FY2023–FY2024 lists; returned.
10 $112,455
Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 1 since FY2024.
11 $108,432
Rank history: #3 in FY2021, #24 in FY2022, #4 in FY2023 and #6 in FY2024; down 5 since FY2024.
12
Red River Pump Specialists Inc.
$105,858
Rank history: not on the FY2021–FY2024 lists; new.
13 $91,588
Rank history: not on the FY2021–FY2024 lists; new.
14 $89,005
Rank history: not on the FY2021–FY2024 lists; new.
15 $85,070
Rank history: not on the FY2021–FY2024 lists; new.
16 $84,000
Rank history: #16 in FY2021, #19 in FY2022, #20 in FY2023 and not on the FY2024 list; returned.
17 $70,000
Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 10 since FY2024.
18 $70,000
Rank history: not on the FY2021–FY2024 lists; new.
19 $59,377
Rank history: not on the FY2021–FY2024 lists; new.
20 $44,835
Rank history: not on the FY2021–FY2024 lists; new.
21 $43,900
Rank history: not on the FY2021–FY2024 lists; new.
22
B & H International LLC
$39,503
Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 13 since FY2024.
23 $39,380
Rank history: #10 in FY2021, #39 in FY2022, #31 in FY2023 and not on the FY2024 list; returned.
24 $36,379
Rank history: not on the FY2021–FY2024 lists; new.
25 $31,164
Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; unchanged since FY2024.
26 $30,846
Rank history: not on the FY2021 list, #27 in FY2022 and not on the FY2023–FY2024 lists; returned.
27
Lakeside Equipment Corporation
$28,602
Rank history: not on the FY2021–FY2024 lists; new.
28 $27,719
Rank history: #22 in FY2021, #22 in FY2022 and not on the FY2023–FY2024 lists; returned.
29 $16,650
Rank history: not on the FY2021–FY2024 lists; new.
30 $15,870
Rank history: not on the FY2021–FY2024 lists; new.
31 $15,560
Rank history: not on the FY2021–FY2024 lists; new.
32 $14,390
Rank history: not on the FY2021–FY2024 lists; new.
33 $11,520
Rank history: not on the FY2021 list, #43 in FY2022, #50 in FY2023 and #45 in FY2024; up 12 since FY2024.
34 $10,500
Rank history: not on the FY2021 list, #42 in FY2022 and not on the FY2023–FY2024 lists; returned.
35 $7,524
Rank history: not on the FY2021–FY2024 lists; new.
36 $4,144
Rank history: not on the FY2021–FY2024 lists; new.
37 $398
Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and not on the FY2024 list; returned.
Show 12 more

37 of 38 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 $27.5 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.
  • 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 4630 contractors in FY2025?

1. Sunstate Environmental Services Inc. ($17.5M), 2. Evac North America Inc ($6.9M), 3. Hemphill Construction Co Inc. ($450K), 4. Utility Systems Solutions, Inc. ($450K), 5. Parrish Enterprises Inc. ($237K), 6. JWC Environmental Inc. ($132K), 7. Spaires Inc. ($128K), 8. Orison Marketing LLC ($125K), 9. Aspen Water, Inc. ($125K), 10. Burhani Enterprises Inc. ($112K).

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