Top 43 Contractors in PSC 4630: 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 4630: Sewage Treatment Equipment, FY2025.

The top 10 won 98% of PSC 4630 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$55,663,483 Net of deobligations, by contracts coded PSC 4630
Contractors
45 Parent companies with an obligation
Largest contractor
Evac North America Inc $21.6 million, 38.5% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 43 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $21,569,072
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2 $17,520,666
Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3 $13,118,336
Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #25 in FY2025; up 22 since Aug 2024–Jul 2025.
4 $837,935
Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
5 $416,901
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
6 $395,514
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7 $313,290
Rank history: #3 in FY2021, #24 in FY2022, #4 in FY2023, #6 in FY2024 and #11 in FY2025; down 4 since Aug 2024–Jul 2025.
8 $254,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9 $192,210
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10 $112,455
Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #10 in FY2025; up 13 since Aug 2024–Jul 2025.
11
Red River Pump Specialists Inc.
$105,858
Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12 $88,972
Rank history: #10 in FY2021, #39 in FY2022, #31 in FY2023, not on the FY2024 list and #23 in FY2025; up 9 since Aug 2024–Jul 2025.
13
JWC Environmental Inc.
$88,750
Rank history: #15 in FY2021, #13 in FY2022, #5 in FY2023, #14 in FY2024 and #6 in FY2025; down 1 since Aug 2024–Jul 2025.
14 $85,070
Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15 $70,710
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16
Thermo Fisher Scientific Inc. Through Thermo Electron North America LLC
$66,941
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
17 $65,940
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18
J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc.
$59,762
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19 $51,389
Rank history: #41 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20 $50,000
Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 10 since Aug 2024–Jul 2025.
21 $43,900
Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22 $34,870
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23 $31,000
Rank history: not on the FY2021–FY2024 lists and #4 in FY2025; down 18 since Aug 2024–Jul 2025.
24
Lakeside Equipment Corporation
$28,602
Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25 $28,572
Rank history: #22 in FY2021, #22 in FY2022, not on the FY2023–FY2024 lists and #28 in FY2025; up 1 since Aug 2024–Jul 2025.
26 $28,062
Rank history: not on the FY2021 list, #33 in FY2022, not on the FY2023 list, #12 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
27 $27,521
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28 $24,989
Rank history: #23 in FY2021, #11 in FY2022, #17 in FY2023, #19 in FY2024 and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29 $24,806
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30 $22,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31 $16,811
Rank history: not on the FY2021–FY2022 lists, #19 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
32 $15,870
Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
33
The Environment Maryland Department of
$15,600
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34 $15,000
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
35 $14,740
Rank history: not on the FY2021 list, #27 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; down 3 since Aug 2024–Jul 2025.
36 $11,520
Rank history: not on the FY2021 list, #43 in FY2022, #50 in FY2023, #45 in FY2024 and #33 in FY2025; down 2 since Aug 2024–Jul 2025.
37 $10,500
Rank history: not on the FY2021 list, #42 in FY2022, not on the FY2023–FY2024 lists and #34 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38 $7,273
Rank history: #46 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39 $6,470
Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40 $6,302
Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41 $4,356
Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 6 since Aug 2024–Jul 2025.
42 $2,647
Rank history: #61 in FY2021, #44 in FY2022, not on the FY2023 list, #28 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
43 $2,600
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
Show 18 more

43 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 $56 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 4630 contractors in Aug 2025–Jul 2026?

1. Evac North America Inc ($21.6M), 2. Sunstate Environmental Services Inc. ($17.5M), 3. Highland Engineering, Inc. ($13.1M), 4. Hemphill Construction Co Inc. ($838K), 5. Service Solutions Plumbing LLC ($417K), 6. Maryland Industrial Trucks, Incorporated ($396K), 7. R P M Supply Corporation ($313K), 8. Advanced Logistic Partners Inc. ($254K), 9. Southwest Fluid Systems, LLC ($192K), 10. Burhani Enterprises Inc. ($112K).

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