Top 65 Contractors in PSC F107: Hazardous Substance Analysis, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Brice Integrated LLC Top agencies Army (Department of the Army)	$2,551,325	14.6%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Jul 2024–Jun 2025.
2	Engineering and Software System Solutions, Inc. Top agencies USAF (Department of the Air Force)	$1,741,213	9.9%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023, #14 in FY2024 and #3 in FY2025; new, not ranked in Jul 2024–Jun 2025.
3	Engineering/Remediation Resources Group Inc. 2 awardees Top agencies USDA (Department of Agriculture)	$1,325,339	7.6%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #5 in FY2025; up 35 since Jul 2024–Jun 2025.
4	Tahkox E2-Whitetail LLC Top agencies Army (Department of the Army)	$1,323,838	7.6%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #1 in FY2025; down 3 since Jul 2024–Jun 2025.
5	Whitetail Environmental, LLC Top agencies Army (Department of the Army)	$1,191,196	6.8%	Rank history: #9 in FY2021, #6 in FY2022, #9 in FY2023, #6 in FY2024 and #7 in FY2025; new, not ranked in Jul 2024–Jun 2025.
6	Bluestone Interspec JV, LLC Top agencies Navy (Department of the Navy)	$884,616	5.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #9 in FY2025; down 1 since Jul 2024–Jun 2025.
7	Association of Consultants and Engineers Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$841,281	4.8%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023, #15 in FY2024 and #10 in FY2025; up 11 since Jul 2024–Jun 2025.
8	Broadview Waste Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$719,346	4.1%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #9 in FY2024 and #8 in FY2025; down 1 since Jul 2024–Jun 2025.
9	Anderson Environmental Contracting LLC Top agencies USDA (Department of Agriculture)	$685,858	3.9%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; new, not ranked in Jul 2024–Jun 2025.
10	Afs-Iei JV, LLC Top agencies HUD (Department of Housing and Urban Development)	$506,822	2.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
11	Zimmetry Environmental Management, Corp Top agencies HUD (Department of Housing and Urban Development)	$503,150	2.9%	Rank history: #63 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
12	Techlaw Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$409,930	2.3%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #12 in FY2025; up 2 since Jul 2024–Jun 2025.
13	Element Materials Technology Boston-Acton Inc. Top agencies VA (Department of Veterans Affairs)	$315,858	1.8%	Rank history: #13 in FY2021, #14 in FY2022, #18 in FY2023, #18 in FY2024 and #22 in FY2025; unchanged since Jul 2024–Jun 2025.
14	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies Navy (Department of the Navy)	$273,952	1.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
15	Pace Analytical Services LLC Top agencies DOT (Department of Transportation)	$189,714	1.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #33 in FY2025; up 29 since Jul 2024–Jun 2025.
16	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army)	$185,004	1.1%	Rank history: #15 in FY2021, #18 in FY2022, #21 in FY2023, #28 in FY2024 and #17 in FY2025; up 6 since Jul 2024–Jun 2025.
17	Research Planning, Inc. Top agencies Commerce (Department of Commerce)	$184,957	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	Golder Europe Service Centre SRL Through WSP USA Solutions Inc. Top agencies Army (Department of the Army)	$175,154	1.0%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
19	Kane Environmental Inc Top agencies Navy (Department of the Navy)	$173,967	1.0%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	A & B Environmental Services, Inc. Top agencies Army (Department of the Army)	$155,969	0.9%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023, #25 in FY2024 and #20 in FY2025; up 5 since Jul 2024–Jun 2025.
21	C & C Environmental Inc. Top agencies EPA (Environmental Protection Agency)	$155,230	0.9%	Rank history: not on the FY2021 list, #26 in FY2022, #37 in FY2023, not on the FY2024 list and #36 in FY2025; up 15 since Jul 2024–Jun 2025.
22	DH Environmental, Inc. Top agencies USDA (Department of Agriculture)	$141,921	0.8%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Jul 2024–Jun 2025.
23	Ti-Sdc, JV LLC Top agencies HUD (Department of Housing and Urban Development)	$114,917	0.7%	Rank history: #7 in FY2021, not on the FY2022 list, #32 in FY2023, #13 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
24	Wsp-Versar JV Through Versar-Wsp JV Top agencies EPA (Environmental Protection Agency)	$111,981	0.6%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #25 in FY2025; down 20 since Jul 2024–Jun 2025.
25	CFC Anlagen- UND Umweltsicherheit GMBH Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$104,070	0.6%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023, #24 in FY2024 and #16 in FY2025; down 4 since Jul 2024–Jun 2025.
26	Environmental Action, Inc. Top agencies DOT (Department of Transportation)	$102,846	0.6%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
27	CIH Support LLC Top agencies Army (Department of the Army)	$95,409	0.5%	Rank history: #22 in FY2021, #27 in FY2022, #27 in FY2023, #27 in FY2024 and #44 in FY2025; down 4 since Jul 2024–Jun 2025.
28	Mabbett & Associates, Inc. Top agencies VA (Department of Veterans Affairs)	$92,575	0.5%	Rank history: #34 in FY2021, #35 in FY2022, #45 in FY2023, #46 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
29	Ahtna-Arcadis 8(A) JV #2, LLC Top agencies Army (Department of the Army)	$85,988	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
30	HGS Engineering Inc. Top agencies USDA (Department of Agriculture)	$85,120	0.5%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #40 in FY2025; down 3 since Jul 2024–Jun 2025.
31	Castle Hill Associates, LLC Top agencies VA (Department of Veterans Affairs)	$75,158	0.4%	Rank history: #49 in FY2021, #32 in FY2022, #42 in FY2023, #38 in FY2024 and #26 in FY2025; up 2 since Jul 2024–Jun 2025.
32	DK Environmental & Construction Services, Inc. Top agencies HUD (Department of Housing and Urban Development)	$71,645	0.4%	Rank history: #5 in FY2021, not on the FY2022 list, #3 in FY2023, #8 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
33	Incorporated Foundation Okinawa Prefecture Environment Science Center Top agencies Navy (Department of the Navy)	$69,268	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #36 in FY2024 and #30 in FY2025; down 1 since Jul 2024–Jun 2025.
34	Terracon Consultants, Inc. 3 awardees Top agencies Treasury (Department of the Treasury)	$68,815	0.4%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #29 in FY2025; down 3 since Jul 2024–Jun 2025.
35	Pi3E JV LLP Top agencies Navy (Department of the Navy)	$56,210	0.3%	Rank history: not on the FY2021–FY2023 lists, #23 in FY2024 and #34 in FY2025; new, not ranked in Jul 2024–Jun 2025.
36	Clean Harbors Inc. Through Clean Harbors Environmental Services Inc. Top agencies USDA (Department of Agriculture)	$53,808	0.3%	Rank history: #28 in FY2021, #31 in FY2022, #63 in FY2023, #32 in FY2024 and #32 in FY2025; down 12 since Jul 2024–Jun 2025.
37	Enviroservices & Training Center LLC Top agencies Army (Department of the Army)	$50,981	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
38	Hudson Technologies Company Top agencies DLA (Defense Logistics Agency)	$46,258	0.3%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; down 1 since Jul 2024–Jun 2025.
39	First Environment Inc. Top agencies Army (Department of the Army)	$45,966	0.3%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Jul 2024–Jun 2025.
40	Purdue University Top agencies DOI (Department of the Interior)	$43,803	0.3%	Rank history: #36 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Pure Air UV Inc. Top agencies VA (Department of Veterans Affairs)	$40,848	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 17 since Jul 2024–Jun 2025.
42	ALS Group USA Corp. Top agencies DLA (Defense Logistics Agency)	$36,270	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #42 in FY2025; down 1 since Jul 2024–Jun 2025.
43	Aerosol Monitoring & Analysis, Inc. Top agencies Smithsonian (Smithsonian Institution)	$32,736	0.2%	Rank history: #24 in FY2021, #15 in FY2022, #29 in FY2023, #26 in FY2024 and #50 in FY2025; new, not ranked in Jul 2024–Jun 2025.
44	Hair Enga Top agencies USAF (Department of the Air Force)	$32,505	0.2%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Jul 2024–Jun 2025.
45	Sage, LLC Top agencies DOT (Department of Transportation)	$23,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; down 10 since Jul 2024–Jun 2025.
46	ENV Services Inc. Top agencies VA (Department of Veterans Affairs)	$22,830	0.1%	Rank history: #32 in FY2021, #30 in FY2022, #47 in FY2023, #42 in FY2024 and #48 in FY2025; up 4 since Jul 2024–Jun 2025.
47	Meca Consulting Inc. Top agencies GSA (General Services Administration)	$20,291	0.1%	Rank history: #20 in FY2021, #24 in FY2022, #26 in FY2023, #29 in FY2024 and #51 in FY2025; up 4 since Jul 2024–Jun 2025.
48	Terraphase Engineering Inc. Top agencies USDA (Department of Agriculture)	$18,394	0.1%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #47 in FY2025; down 18 since Jul 2024–Jun 2025.
49	Arcwood Environmental, LLC Top agencies DOJ (Department of Justice)	$18,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
50	Applied Laboratory Services LLC Top agencies Navy (Department of the Navy)	$17,768	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	Environmental Cost Management, Inc. Top agencies USDA (Department of Agriculture)	$17,706	0.1%	Rank history: #14 in FY2021, #52 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
52	C.j. Seto Support Services, LLC Top agencies Navy (Department of the Navy)	$15,558	0.1%	Rank history: #26 in FY2021, #9 in FY2022, #62 in FY2023, #34 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
53	Gold Wave Inc. Top agencies DOI (Department of the Interior)	$13,668	0.1%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and #41 in FY2025; down 13 since Jul 2024–Jun 2025.
54	Fruit Growers Laboratory, Inc. Top agencies USAF (Department of the Air Force)	$12,632	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, #67 in FY2023, #65 in FY2024 and #53 in FY2025; down 1 since Jul 2024–Jun 2025.
55	GLE Associates, Inc. Top agencies DOI (Department of the Interior)	$11,666	0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
56	Clean Management Environmental Group, Inc. Top agencies USDA (Department of Agriculture)	$9,800	0.1%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023, not on the FY2024 list and #56 in FY2025; new, not ranked in Jul 2024–Jun 2025.
57	Tech O. R., LLC Top agencies DOI (Department of the Interior)	$9,454	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
58	Gel Laboratories LLC Top agencies Army (Department of the Army)	$8,035	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	Eurofins Environment Testing Northeast, LLC Top agencies USAF (Department of the Air Force)	$7,202	<0.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Jul 2024–Jun 2025.
60	Ecothink Group LLC Top agencies Navy (Department of the Navy)	$6,000	<0.1%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #62 in FY2025; down 1 since Jul 2024–Jun 2025.
61	CT Laboratories, LLC Top agencies Army (Department of the Army)	$5,170	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
62	Red J Environmental Corporation Top agencies DOI (Department of the Interior)	$4,691	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Jul 2024–Jun 2025.
63	Ayuda Companies Top agencies DOI (Department of the Interior)	$4,315	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	Environmental Monitoring and Technologies, LLC Top agencies Army (Department of the Army)	$3,168	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Hawaii Analytical Laboratory LLC Top agencies Army (Department of the Army)	$2,985	<0.1%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #65 in FY2025; down 2 since Jul 2024–Jun 2025.

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 $17.5 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.

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