Top 68 Contractors in PSC F107: Hazardous Substance Analysis, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Tahkox E2-Whitetail LLC Top agencies Army (Department of the Army)	$3,855,838	17.4%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	Brice Integrated LLC Top agencies Army (Department of the Army)	$2,551,325	11.5%	Rank history: not on the FY2021–FY2024 lists; new.
3	Engineering and Software System Solutions, Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$2,086,769	9.4%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and #14 in FY2024; up 11 since FY2024.
4	Guidehouse Inc. Through Aptim Federal Services, LLC Top agencies Navy (Department of the Navy)	$1,127,480	5.1%	Rank history: not on the FY2021–FY2024 lists; new.
5	Engineering/Remediation Resources Group Inc. Top agencies USDA (Department of Agriculture)	$999,435	4.5%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; up 38 since FY2024.
6	Ones Whitetail Joint Venture LLC Top agencies Army (Department of the Army)	$876,642	4.0%	Rank history: #3 in FY2021, #3 in FY2022, #1 in FY2023 and #2 in FY2024; down 4 since FY2024.
7	Whitetail Environmental, LLC Top agencies Army (Department of the Army)	$780,903	3.5%	Rank history: #9 in FY2021, #6 in FY2022, #9 in FY2023 and #6 in FY2024; down 1 since FY2024.
8	Broadview Waste Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$726,284	3.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #9 in FY2024; up 1 since FY2024.
9	Bluestone Interspec JV, LLC Top agencies Navy (Department of the Navy)	$665,275	3.0%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; down 5 since FY2024.
10	Association of Consultants and Engineers Top agencies Navy (Department of the Navy)	$596,624	2.7%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #15 in FY2024; up 5 since FY2024.
11	Aleut Remediation LLC Top agencies Army (Department of the Army)	$559,340	2.5%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2024; up 1 since FY2024.
12	Techlaw Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$509,821	2.3%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2024; up 10 since FY2024.
13	Anderson Environmental Contracting LLC Top agencies USDA (Department of Agriculture)	$478,965	2.2%	Rank history: not on the FY2021–FY2024 lists; new.
14	Corrdesa LLC Top agencies USAF (Department of the Air Force)	$340,000	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
15	Enviro-Terra Inc. Top agencies Army (Department of the Army)	$252,650	1.1%	Rank history: not on the FY2021 list, #1 in FY2022, not on the FY2023 list and #5 in FY2024; down 10 since FY2024.
16	CFC Anlagen- UND Umweltsicherheit GMBH Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$230,239	1.0%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #24 in FY2024; up 8 since FY2024.
17	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army)	$214,688	1.0%	Rank history: #15 in FY2021, #18 in FY2022, #21 in FY2023 and #28 in FY2024; up 11 since FY2024.
18	Golder Europe Service Centre SRL Through WSP USA Solutions Inc. Top agencies Army (Department of the Army)	$175,154	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
19	Kane Environmental Inc Top agencies Navy (Department of the Navy)	$173,967	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
20	A & B Environmental Services, Inc. Top agencies Army (Department of the Army)	$155,969	0.7%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #25 in FY2024; up 5 since FY2024.
21	DH Environmental, Inc. Top agencies USDA (Department of Agriculture)	$141,921	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
22	Element Materials Technology Boston-Acton Inc. Top agencies VA (Department of Veterans Affairs)	$140,028	0.6%	Rank history: #13 in FY2021, #14 in FY2022, #18 in FY2023 and #18 in FY2024; down 4 since FY2024.
23	Thunderbird-Hrp JV LLC Top agencies VA (Department of Veterans Affairs)	$119,200	0.5%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 16 since FY2024.
24	Hawaii International Environmental Services Inc. Top agencies Navy (Department of the Navy)	$118,348	0.5%	Rank history: #59 in FY2021, #10 in FY2022, #12 in FY2023 and #16 in FY2024; down 8 since FY2024.
25	Wsp-Versar JV Through Versar-Wsp JV Top agencies EPA (Environmental Protection Agency)	$111,981	0.5%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 22 since FY2024.
26	Castle Hill Associates, LLC Top agencies VA (Department of Veterans Affairs)	$110,213	0.5%	Rank history: #49 in FY2021, #32 in FY2022, #42 in FY2023 and #38 in FY2024; up 12 since FY2024.
27	Environmental Action, Inc. Top agencies DOT (Department of Transportation)	$102,042	0.5%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 33 since FY2024.
28	Sage, LLC Top agencies VA (Department of Veterans Affairs) DOT (Department of Transportation)	$96,877	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
29	Terracon Consultants, Inc. 3 awardees Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$71,777	0.3%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 8 since FY2024.
30	Incorporated Foundation Okinawa Prefecture Environment Science Center Top agencies Navy (Department of the Navy)	$71,506	0.3%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #36 in FY2024; up 6 since FY2024.
31	Emergency Environmental Services LLC Top agencies USDA (Department of Agriculture)	$64,881	0.3%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 25 since FY2024.
32	Clean Harbors Inc. 2 awardees, including Clean Harbors Environmental Services Inc. Top agencies USDA (Department of Agriculture)	$60,549	0.3%	Rank history: #28 in FY2021, #31 in FY2022, #63 in FY2023 and #32 in FY2024; unchanged since FY2024.
33	Pace Analytical Services LLC Top agencies DOT (Department of Transportation)	$58,910	0.3%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 20 since FY2024.
34	Pi3E JV LLP Top agencies Navy (Department of the Navy)	$56,210	0.3%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 11 since FY2024.
35	Your Environmental Solutions, Inc. Top agencies USAF (Department of the Air Force)	$53,100	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #41 in FY2024; up 6 since FY2024.
36	C & C Environmental Inc. Top agencies EPA (Environmental Protection Agency)	$50,000	0.2%	Rank history: not on the FY2021 list, #26 in FY2022, #37 in FY2023 and not on the FY2024 list; returned.
37	First Environment Inc. Top agencies Army (Department of the Army)	$45,966	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
38	Hudson Technologies Company Top agencies DLA (Defense Logistics Agency)	$44,911	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
39	Lotususa, Inc. Top agencies HHS (Department of Health and Human Services)	$41,999	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #53 in FY2023 and #47 in FY2024; up 8 since FY2024.
40	HGS Engineering Inc. Top agencies USDA (Department of Agriculture)	$38,393	0.2%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; down 9 since FY2024.
41	Gold Wave Inc. Top agencies DOI (Department of the Interior)	$37,900	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 23 since FY2024.
42	ALS Group USA Corp. Top agencies DLA (Defense Logistics Agency)	$36,270	0.2%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 7 since FY2024.
43	Emsl Analytical Inc. Top agencies VA (Department of Veterans Affairs)	$26,264	0.1%	Rank history: not on the FY2021 list, #56 in FY2022 and not on the FY2023–FY2024 lists; returned.
44	CIH Support LLC Top agencies Army (Department of the Army)	$25,678	0.1%	Rank history: #22 in FY2021, #27 in FY2022, #27 in FY2023 and #27 in FY2024; down 17 since FY2024.
45	EA Engineering Science and Technology Inc. PBC Top agencies DOI (Department of the Interior)	$24,515	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	Excel Environmental, Inc. Top agencies Treasury (Department of the Treasury)	$20,472	0.1%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and not on the FY2024 list; returned.
47	Terraphase Engineering Inc. Top agencies USDA (Department of Agriculture)	$18,394	0.1%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; down 12 since FY2024.
48	ENV Services Inc. Top agencies VA (Department of Veterans Affairs)	$17,823	0.1%	Rank history: #32 in FY2021, #30 in FY2022, #47 in FY2023 and #42 in FY2024; down 6 since FY2024.
49	First Strike Environmental Co Top agencies USDA (Department of Agriculture)	$17,530	0.1%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2024; up 29 since FY2024.
50	Aerosol Monitoring & Analysis, Inc. Top agencies Smithsonian (Smithsonian Institution)	$14,599	0.1%	Rank history: #24 in FY2021, #15 in FY2022, #29 in FY2023 and #26 in FY2024; down 24 since FY2024.
51	Meca Consulting Inc. Top agencies GSA (General Services Administration)	$13,610	0.1%	Rank history: #20 in FY2021, #24 in FY2022, #26 in FY2023 and #29 in FY2024; down 22 since FY2024.
52	Hair Enga Top agencies USAF (Department of the Air Force)	$12,880	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	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 and #65 in FY2024; up 12 since FY2024.
54	Emerald Environmental, Inc. Top agencies DOT (Department of Transportation)	$12,500	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	GLE Associates, Inc. Top agencies DOI (Department of the Interior)	$11,666	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
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 and not on the FY2024 list; returned.
57	Green Home of Minnesota LLC Top agencies DOI (Department of the Interior)	$7,387	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	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; new.
59	Teledyne Technologies Incorporated Through Teledyne Flir Defense, LLC Top agencies DLA (Defense Logistics Agency)	$6,900	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Pure Air UV Inc. Top agencies VA (Department of Veterans Affairs)	$6,830	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
61	Titan Environmental Solutions, Inc. Top agencies Army (Department of the Army)	$6,004	<0.1%	Rank history: #50 in FY2021, #50 in FY2022, #65 in FY2023 and #45 in FY2024; down 16 since FY2024.
62	Ecothink Group LLC Top agencies Navy (Department of the Navy)	$5,900	<0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; unchanged since FY2024.
63	CAL Inc. Top agencies DOI (Department of the Interior)	$4,725	<0.1%	Rank history: not on the FY2021 list, #62 in FY2022 and not on the FY2023–FY2024 lists; returned.
64	Red J Environmental Corporation Top agencies DOI (Department of the Interior)	$4,691	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	Hawaii Analytical Laboratory LLC Top agencies Army (Department of the Army)	$4,481	<0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 4 since FY2024.
66	Applied Laboratory Services LLC Top agencies Navy (Department of the Navy)	$4,223	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	Batta Environmental Associates Inc. Top agencies Navy (Department of the Navy)	$3,352	<0.1%	Rank history: #55 in FY2021, #49 in FY2022, #81 in FY2023 and #58 in FY2024; down 9 since FY2024.
68	Taggart Brown & Associates, Inc. Top agencies DOI (Department of the Interior)	$850	<0.1%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; down 47 since FY2024.

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 $22.2 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.

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