Top 59 Contractors in PSC H146: Quality Control Services: Water Purification and Sewage Treatment Equipment, Jul 2025–Jun 2026

Name: Top 59 Contractors in PSC H146: Quality Control Services: Water Purification and Sewage Treatment Equipment, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 65% of PSC H146 contract dollars from July 2025 through June 2026

Contract obligations: $12,312,005 Net of deobligations, by contracts coded PSC H146
Contractors: 64 Parent companies with an obligation
Largest contractor: GA Mechanical Inc. $2.01 million, 14.8% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 59 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	GA Mechanical Inc. Top agencies Army (Department of the Army)	$2,005,829	14.8%	Rank history: #11 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 1 since Jul 2024–Jun 2025.
2	Phigenics LLC Top agencies VA (Department of Veterans Affairs)	$1,925,906	14.2%	Rank history: #2 in FY2021, #5 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since Jul 2024–Jun 2025.
3	Doc Development, Inc. Top agencies USAF (Department of the Air Force)	$1,199,039	8.8%	Rank history: not on the FY2021 list, #4 in FY2022, #4 in FY2023, #4 in FY2024 and #3 in FY2025; up 1 since Jul 2024–Jun 2025.
4	Sentinel Services, LLC Top agencies VA (Department of Veterans Affairs)	$746,930	5.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
5	Venergy Group LLC Top agencies VA (Department of Veterans Affairs)	$636,679	4.7%	Rank history: #6 in FY2021, #6 in FY2022, #8 in FY2023, #8 in FY2024 and #8 in FY2025; up 1 since Jul 2024–Jun 2025.
6	Aviate Enterprises, Inc. Top agencies USAF (Department of the Air Force)	$616,598	4.6%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023, #3 in FY2024 and #4 in FY2025; down 3 since Jul 2024–Jun 2025.
7	Hyperion Biotechnology, Inc. Top agencies VA (Department of Veterans Affairs)	$529,348	3.9%	Rank history: #7 in FY2021, #7 in FY2022, #11 in FY2023, #7 in FY2024 and #6 in FY2025; unchanged since Jul 2024–Jun 2025.
8	Fluid Handling LLC Through Evoqua Water Technologies LLC Top agencies VA (Department of Veterans Affairs)	$428,661	3.2%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; up 12 since Jul 2024–Jun 2025.
9	Bear Environmental LLC Top agencies USAF (Department of the Air Force)	$400,000	3.0%	Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	I-2-I Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$347,282	2.6%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #5 in FY2025; down 5 since Jul 2024–Jun 2025.
11	Baron Analytical Laboratories LLC Top agencies VA (Department of Veterans Affairs)	$295,971	2.2%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023, #15 in FY2024 and #19 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Enviroh20 LLC Top agencies VA (Department of Veterans Affairs)	$250,162	1.8%	Rank history: not on the FY2021 list, #14 in FY2022, #12 in FY2023, #12 in FY2024 and #11 in FY2025; down 1 since Jul 2024–Jun 2025.
13	Klenzoid Inc. Top agencies VA (Department of Veterans Affairs)	$232,875	1.7%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #18 in FY2025; up 5 since Jul 2024–Jun 2025.
14	Paramount Construction Group, LLC Top agencies VA (Department of Veterans Affairs)	$223,008	1.6%	Rank history: #9 in FY2021, #13 in FY2022, #18 in FY2023, #18 in FY2024 and #22 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15	Laboratory Resources & Solutions, Inc. Top agencies Army (Department of the Army)	$220,860	1.6%	Rank history: #14 in FY2021, #11 in FY2022, not on the FY2023 list, #17 in FY2024 and #12 in FY2025; up 4 since Jul 2024–Jun 2025.
16	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$176,203	1.3%	Rank history: #5 in FY2021, #8 in FY2022, #25 in FY2023, #13 in FY2024 and #14 in FY2025; down 2 since Jul 2024–Jun 2025.
17	Garratt-Callahan Company Top agencies VA (Department of Veterans Affairs)	$161,300	1.2%	Rank history: #24 in FY2021, #30 in FY2022, #54 in FY2023, not on the FY2024 list and #17 in FY2025; new, not ranked in Jul 2024–Jun 2025.
18	Cedarville Engineering Group LLC Top agencies DOT (Department of Transportation)	$156,075	1.2%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; new, not ranked in Jul 2024–Jun 2025.
19	Criterion Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$141,726	1.0%	Rank history: #26 in FY2021, #49 in FY2022, not on the FY2023–FY2024 lists and #15 in FY2025; down 7 since Jul 2024–Jun 2025.
20	Mecx, Inc. Top agencies VA (Department of Veterans Affairs)	$137,450	1.0%	Rank history: #44 in FY2021, not on the FY2022–FY2023 lists, #57 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
21	Total Water Treatment Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$135,183	1.0%	Rank history: not on the FY2021–FY2023 lists, #29 in FY2024 and #32 in FY2025; up 11 since Jul 2024–Jun 2025.
22	K.i. Kogyo Ltd. Top agencies Navy (Department of the Navy)	$109,185	0.8%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, not on the FY2024 list and #13 in FY2025; down 9 since Jul 2024–Jun 2025.
23	Optimum Environmental Corporation Top agencies USDA (Department of Agriculture)	$104,950	0.8%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023, #32 in FY2024 and #36 in FY2025; new, not ranked in Jul 2024–Jun 2025.
24	First Environment Inc. Top agencies Army (Department of the Army)	$96,911	0.7%	Rank history: not on the FY2021 list, #12 in FY2022, #13 in FY2023, not on the FY2024 list and #25 in FY2025; down 14 since Jul 2024–Jun 2025.
25	Daks Enterprises, Limited Top agencies VA (Department of Veterans Affairs)	$89,888	0.7%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023, #25 in FY2024 and #37 in FY2025; up 10 since Jul 2024–Jun 2025.
26	Absolute Water Technologies L.L.C. Top agencies VA (Department of Veterans Affairs)	$85,290	0.6%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #20 in FY2025; down 9 since Jul 2024–Jun 2025.
27	Ecolab Inc. 2 awardees, including Barclay Water Management, Inc. and Nalco Company LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$72,680	0.5%	Rank history: #1 in FY2021, #1 in FY2022, #3 in FY2023, #5 in FY2024 and #48 in FY2025; up 22 since Jul 2024–Jun 2025.
28	R & M Government Services Inc. Top agencies VA (Department of Veterans Affairs)	$70,000	0.5%	Rank history: #16 in FY2021, #16 in FY2022, #17 in FY2023, #10 in FY2024 and #38 in FY2025; up 8 since Jul 2024–Jun 2025.
29	Warrior Dynamics LLC Top agencies VA (Department of Veterans Affairs)	$68,415	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	Ack3 Consulting, LLC Top agencies VA (Department of Veterans Affairs)	$68,019	0.5%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #26 in FY2025; down 7 since Jul 2024–Jun 2025.
31	Evoqua Water Technologies LLC 3 awardees Top agencies VA (Department of Veterans Affairs)	$66,959	0.5%	Rank history: #13 in FY2021, #27 in FY2022, #6 in FY2023, #6 in FY2024 and #7 in FY2025; down 15 since Jul 2024–Jun 2025.
32	RLM Government Services LLC Top agencies VA (Department of Veterans Affairs)	$62,096	0.5%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, #50 in FY2024 and #51 in FY2025; up 18 since Jul 2024–Jun 2025.
33	City of Lompoc Top agencies USAF (Department of the Air Force)	$60,085	0.4%	Rank history: not on the FY2021 list, #25 in FY2022, #27 in FY2023, #30 in FY2024 and #33 in FY2025; unchanged since Jul 2024–Jun 2025.
34	Kovais Innovative Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$46,733	0.3%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; up 3 since Jul 2024–Jun 2025.
35	Cranmer Engineering, Inc. Top agencies USDA (Department of Agriculture)	$45,850	0.3%	Rank history: #29 in FY2021, #54 in FY2022, #39 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
36	Generations Estates L.L.C. Top agencies VA (Department of Veterans Affairs)	$45,589	0.3%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #34 in FY2025; down 2 since Jul 2024–Jun 2025.
37	Synergic Industries LLC Top agencies VA (Department of Veterans Affairs)	$41,250	0.3%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Jul 2024–Jun 2025.
38	Momar, Incorporated Top agencies DOJ (Department of Justice)	$34,176	0.3%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and #42 in FY2025; up 7 since Jul 2024–Jun 2025.
39	R and K Environmental LLC Top agencies VA (Department of Veterans Affairs)	$29,813	0.2%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, #37 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
40	Hawk Mountain Lab Inc. Top agencies Army (Department of the Army)	$29,812	0.2%	Rank history: #38 in FY2021, #36 in FY2022, #38 in FY2023, #44 in FY2024 and #35 in FY2025; up 8 since Jul 2024–Jun 2025.
41	International Chemstar Incorporated Top agencies DOI (Department of the Interior)	$22,780	0.2%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #49 in FY2024 and #50 in FY2025; up 6 since Jul 2024–Jun 2025.
42	AGX Inc. Top agencies VA (Department of Veterans Affairs)	$20,860	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #35 in FY2024 and #49 in FY2025; up 4 since Jul 2024–Jun 2025.
43	American Engineering Corporation Top agencies Army (Department of the Army)	$19,308	0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; up 17 since Jul 2024–Jun 2025.
44	Toungate Worth Hydrochem of Corpus Christi, Inc. Top agencies DOJ (Department of Justice)	$19,125	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
45	Danaher Corporation Through Hach Company Top agencies VA (Department of Veterans Affairs)	$17,397	0.1%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and not on the FY2025 list; up 13 since Jul 2024–Jun 2025.
46	Schrass GMBH Top agencies USAF (Department of the Air Force)	$17,340	0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #30 in FY2025; down 16 since Jul 2024–Jun 2025.
47	Neilson Research Corporation Top agencies USDA (Department of Agriculture)	$17,076	0.1%	Rank history: not on the FY2021 list, #46 in FY2022, #50 in FY2023, #55 in FY2024 and #55 in FY2025; up 8 since Jul 2024–Jun 2025.
48	Jet Inc. Top agencies DOS (Department of State)	$11,036	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
49	Xleagle LLC Top agencies VA (Department of Veterans Affairs)	$8,582	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
50	J C Products LLC Top agencies USDA (Department of Agriculture)	$8,340	0.1%	Rank history: #56 in FY2021, #53 in FY2022, #58 in FY2023, #63 in FY2024 and #59 in FY2025; up 11 since Jul 2024–Jun 2025.
51	Chem-Aqua Inc Through NCH Corporation Top agencies VA (Department of Veterans Affairs)	$8,121	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
52	General Water Technologies Inc. Top agencies DHA (Defense Health Agency)	$7,940	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Davy Engineering Company, Inc. Top agencies VA (Department of Veterans Affairs)	$6,421	<0.1%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #63 in FY2025; up 13 since Jul 2024–Jun 2025.
54	Hydro, Inc. Top agencies VA (Department of Veterans Affairs)	$5,510	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #65 in FY2024 and #61 in FY2025; up 10 since Jul 2024–Jun 2025.
55	Pureline Treatment Systems LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$4,554	<0.1%	Rank history: not on the FY2021 list, #40 in FY2022, #51 in FY2023, #53 in FY2024 and #70 in FY2025; down 1 since Jul 2024–Jun 2025.
56	Johnson'S Services Incorporated Top agencies Army (Department of the Army)	$3,885	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 11 since Jul 2024–Jun 2025.
57	Cwm Environmental LLC Top agencies VA (Department of Veterans Affairs)	$2,118	<0.1%	Rank history: #61 in FY2021, #52 in FY2022, #59 in FY2023, #64 in FY2024 and #53 in FY2025; down 1 since Jul 2024–Jun 2025.
58	Southern Petroleum Laboratories Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,986	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 11 since Jul 2024–Jun 2025.
59	Instrulink LLC Top agencies DOI (Department of the Interior)	$1,875	<0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; down 31 since Jul 2024–Jun 2025.

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59 of 64 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 $13.5 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. 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 Jul 2024–Jun 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 H146 contractors in Jul 2025–Jun 2026?

1. GA Mechanical Inc. ($2.01M), 2. Phigenics LLC ($1.93M), 3. Doc Development, Inc. ($1.2M), 4. Sentinel Services, LLC ($747K), 5. Venergy Group LLC ($637K), 6. Aviate Enterprises, Inc. ($617K), 7. Hyperion Biotechnology, Inc. ($529K), 8. Fluid Handling LLC ($429K), 9. Bear Environmental LLC ($400K), 10. I-2-I Solutions, Inc. ($347K).

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