Top 82 Contractors in PSC F107: Hazardous Substance Analysis, FY2024

Name: Top 82 Contractors in PSC F107: Hazardous Substance Analysis, FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 60% of FY2024 PSC F107 contract dollars

Contract obligations: $17,068,608 Net of deobligations, by contracts coded PSC F107
Contractors: 88 Parent companies with an obligation
Largest contractor: Tahkox E2-Whitetail LLC $3.73 million, 17.6% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 82 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Tahkox E2-Whitetail LLC Top agencies Army (Department of the Army)	$3,731,749	17.6%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2025; new.
2	Ones Whitetail Joint Venture LLC Top agencies Army (Department of the Army)	$2,352,257	11.1%	Rank history: #3 in FY2021, #3 in FY2022, #1 in FY2023 and #6 in FY2025; down 1 since FY2023.
3	Wsp-Versar JV Through Versar-Wsp JV Top agencies EPA (Environmental Protection Agency)	$1,249,672	5.9%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2025; new.
4	Bluestone Interspec JV, LLC Top agencies Navy (Department of the Navy)	$1,042,196	4.9%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
5	Enviro-Terra Inc. Top agencies Army (Department of the Army)	$995,582	4.7%	Rank history: not on the FY2021 list, #1 in FY2022, not on the FY2023 list and #15 in FY2025; returned.
6	Whitetail Environmental, LLC Top agencies Army (Department of the Army)	$766,404	3.6%	Rank history: #9 in FY2021, #6 in FY2022, #9 in FY2023 and #7 in FY2025; up 3 since FY2023.
7	Lata-Cti Environmental Services LLC Top agencies USAF (Department of the Air Force)	$662,221	3.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
8	DK Environmental & Construction Services, Inc. Top agencies HUD (Department of Housing and Urban Development)	$638,244	3.0%	Rank history: #5 in FY2021, not on the FY2022 list, #3 in FY2023 and not on the FY2025 list; down 5 since FY2023.
9	Broadview Waste Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$624,913	2.9%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #8 in FY2025; up 15 since FY2023.
10	Environmental Science Corporation Top agencies Navy (Department of the Navy)	$557,467	2.6%	Rank history: #56 in FY2021, not on the FY2022 list, #58 in FY2023 and not on the FY2025 list; up 48 since FY2023.
11	Haztrain Inc. Top agencies Navy (Department of the Navy)	$536,770	2.5%	Rank history: #10 in FY2021, #7 in FY2022, #30 in FY2023 and not on the FY2025 list; up 19 since FY2023.
12	Aleut Remediation LLC Top agencies Army (Department of the Army)	$533,090	2.5%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
13	Ti-Sdc, JV LLC Top agencies HUD (Department of Housing and Urban Development)	$427,858	2.0%	Rank history: #7 in FY2021, not on the FY2022 list, #32 in FY2023 and not on the FY2025 list; up 19 since FY2023.
14	Engineering and Software System Solutions, Inc. 2 awardees Top agencies USAF (Department of the Air Force)	$400,331	1.9%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and #3 in FY2025; down 1 since FY2023.
15	Association of Consultants and Engineers Top agencies Navy (Department of the Navy)	$370,780	1.7%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #10 in FY2025; up 1 since FY2023.
16	Hawaii International Environmental Services Inc. 2 awardees Top agencies Navy (Department of the Navy)	$306,071	1.4%	Rank history: #59 in FY2021, #10 in FY2022, #12 in FY2023 and #24 in FY2025; down 4 since FY2023.
17	Pi2E JV LLP Top agencies HUD (Department of Housing and Urban Development)	$298,723	1.4%	Rank history: #6 in FY2021, not on the FY2022 list, #17 in FY2023 and not on the FY2025 list; unchanged since FY2023.
18	Element Materials Technology Boston-Acton Inc. Top agencies VA (Department of Veterans Affairs)	$294,642	1.4%	Rank history: #13 in FY2021, #14 in FY2022, #18 in FY2023 and #22 in FY2025; unchanged since FY2023.
19	EA Engineering, Science, and Technology, Inc., PBC Top agencies DOI (Department of the Interior)	$269,769	1.3%	Rank history: not on the FY2021 list, #2 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
20	Trilogy Medwaste Southeast, LLC Top agencies HHS (Department of Health and Human Services)	$253,744	1.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Taggart Brown & Associates, Inc. Top agencies DOI (Department of the Interior)	$223,430	1.1%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; new.
22	Techlaw Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$200,000	0.9%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
23	Pi3E JV LLP Top agencies Navy (Department of the Navy)	$196,181	0.9%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
24	CFC Anlagen- UND Umweltsicherheit GMBH Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$182,725	0.9%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #16 in FY2025; down 4 since FY2023.
25	A & B Environmental Services, Inc. Top agencies Army (Department of the Army)	$175,615	0.8%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #20 in FY2025; up 10 since FY2023.
26	Aerosol Monitoring & Analysis, Inc. Top agencies Smithsonian (Smithsonian Institution)	$174,087	0.8%	Rank history: #24 in FY2021, #15 in FY2022, #29 in FY2023 and #50 in FY2025; up 3 since FY2023.
27	CIH Support LLC Top agencies Army (Department of the Army)	$159,770	0.8%	Rank history: #22 in FY2021, #27 in FY2022, #27 in FY2023 and #44 in FY2025; unchanged since FY2023.
28	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army)	$158,257	0.7%	Rank history: #15 in FY2021, #18 in FY2022, #21 in FY2023 and #17 in FY2025; down 7 since FY2023.
29	Meca Consulting Inc. Top agencies GSA (General Services Administration)	$144,926	0.7%	Rank history: #20 in FY2021, #24 in FY2022, #26 in FY2023 and #51 in FY2025; down 3 since FY2023.
30	Advanced Chemical Transport LLC Top agencies DOJ (Department of Justice)	$136,424	0.6%	Rank history: #60 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
31	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$127,742	0.6%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; new.
32	Clean Harbors Inc. 5 awardees, including Clean Harbors Environmental Services Inc. and Clean Harbors Caribe, Inc. Top agencies USDA (Department of Agriculture) DOT (Department of Transportation) EPA (Environmental Protection Agency)	$113,803	0.5%	Rank history: #28 in FY2021, #31 in FY2022, #63 in FY2023 and #32 in FY2025; up 31 since FY2023.
33	Triumvirate Environmental, LLC Top agencies VA (Department of Veterans Affairs)	$110,000	0.5%	Rank history: #23 in FY2021, #17 in FY2022, #28 in FY2023 and not on the FY2025 list; down 5 since FY2023.
34	C.j. Seto Support Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$102,795	0.5%	Rank history: #26 in FY2021, #9 in FY2022, #62 in FY2023 and not on the FY2025 list; up 28 since FY2023.
35	Terraphase Engineering Inc. Top agencies USDA (Department of Agriculture)	$77,927	0.4%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
36	Incorporated Foundation Okinawa Prefecture Environment Science Center Top agencies Navy (Department of the Navy)	$74,881	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and #30 in FY2025; unchanged since FY2023.
37	Terracon Consultants, Inc. 2 awardees Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$71,292	0.3%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
38	Castle Hill Associates, LLC Top agencies VA (Department of Veterans Affairs)	$68,388	0.3%	Rank history: #49 in FY2021, #32 in FY2022, #42 in FY2023 and #26 in FY2025; up 4 since FY2023.
39	Thunderbird-Hrp JV LLC Top agencies VA (Department of Veterans Affairs)	$66,100	0.3%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
40	University of North Carolina At Chapel Hill Top agencies DOI (Department of the Interior)	$62,500	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
41	Your Environmental Solutions, Inc. Top agencies USAF (Department of the Air Force)	$49,450	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #35 in FY2025; up 5 since FY2023.
42	ENV Services Inc. Top agencies VA (Department of Veterans Affairs)	$46,650	0.2%	Rank history: #32 in FY2021, #30 in FY2022, #47 in FY2023 and #48 in FY2025; up 5 since FY2023.
43	Engineering/Remediation Resources Group Inc. Top agencies USDA (Department of Agriculture)	$44,300	0.2%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
44	Hudson Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$43,603	0.2%	Rank history: not on the FY2021 list, #33 in FY2022, #51 in FY2023 and not on the FY2025 list; up 7 since FY2023.
45	Titan Environmental Solutions, Inc. Top agencies GSA (General Services Administration)	$43,030	0.2%	Rank history: #50 in FY2021, #50 in FY2022, #65 in FY2023 and #61 in FY2025; up 20 since FY2023.
46	Mabbett & Associates, Inc. Top agencies DOE (Department of Energy)	$42,551	0.2%	Rank history: #34 in FY2021, #35 in FY2022, #45 in FY2023 and not on the FY2025 list; down 1 since FY2023.
47	Lotususa, Inc. Top agencies HHS (Department of Health and Human Services)	$40,474	0.2%	Rank history: not on the FY2021 list, #37 in FY2022, #53 in FY2023 and #39 in FY2025; up 6 since FY2023.
48	Verina Consulting Group LLC Top agencies DHS (Department of Homeland Security)	$40,023	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	ALS Group USA Corp. Top agencies DLA (Defense Logistics Agency)	$36,270	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; new.
50	Industrial Hygiene Professionals, Inc. Top agencies USAF (Department of the Air Force)	$27,850	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
51	Ama Analytical Services, Inc. Top agencies Commerce (Department of Commerce)	$25,000	0.1%	Rank history: #73 in FY2021, #55 in FY2022, #78 in FY2023 and not on the FY2025 list; up 27 since FY2023.
52	Greer Enterprises LLC Top agencies USDA (Department of Agriculture)	$23,500	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	Pace Analytical Services LLC Top agencies DOT (Department of Transportation)	$22,964	0.1%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
54	Professional Environmental Engineers, Inc. Top agencies DOI (Department of the Interior)	$22,750	0.1%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and not on the FY2025 list; down 21 since FY2023.
55	Come-Bye Goose Control, LLC Top agencies Army (Department of the Army)	$22,104	0.1%	Rank history: #48 in FY2021, #46 in FY2022, #60 in FY2023 and not on the FY2025 list; up 5 since FY2023.
56	Emergency Environmental Services LLC Top agencies USDA (Department of Agriculture)	$18,932	0.1%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; new.
57	Colorado State University Top agencies DOI (Department of the Interior)	$17,089	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
58	Batta Environmental Associates Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$16,786	0.1%	Rank history: #55 in FY2021, #49 in FY2022, #81 in FY2023 and #67 in FY2025; up 23 since FY2023.
59	Advanced Environmental Solutions Inc. Top agencies DOJ (Department of Justice)	$16,239	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Environmental Action, Inc. Top agencies DOT (Department of Transportation)	$14,648	0.1%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
61	Hawaii Analytical Laboratory LLC Top agencies Army (Department of the Army)	$14,258	0.1%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; new.
62	Ecothink Group LLC Top agencies DOI (Department of the Interior)	$14,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
63	KCI Technologies, Inc. Top agencies Smithsonian (Smithsonian Institution)	$13,273	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Gold Wave Inc. Top agencies DOI (Department of the Interior)	$12,900	0.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2025; new.
65	Fruit Growers Laboratory, Inc. Top agencies USAF (Department of the Air Force)	$12,265	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, #67 in FY2023 and #53 in FY2025; up 2 since FY2023.
66	Hamilton Alliance Inc. Top agencies SSA (Social Security Administration)	$11,200	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Alhoty Analytical Services W.l.l Top agencies Navy (Department of the Navy)	$9,433	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	Sunrise Environmental LLC Top agencies DOJ (Department of Justice)	$9,232	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	Environmental Marketing Services, LLC Top agencies USDA (Department of Agriculture)	$7,200	<0.1%	Rank history: #44 in FY2021, not on the FY2022 list, #73 in FY2023 and not on the FY2025 list; up 4 since FY2023.
70	Heritage-Crystal Clean Inc. Through Crystal Clean, LLC Top agencies USDA (Department of Agriculture)	$7,122	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	Heritage Environmental Services Inc. Through Arcwood Environmental, LLC Top agencies DOJ (Department of Justice)	$5,727	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Advantage Environmental Inc. Top agencies DOI (Department of the Interior)	$5,394	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and not on the FY2025 list; up 2 since FY2023.
73	Transchem Environmental LLC Top agencies USDA (Department of Agriculture)	$5,228	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Cornerstone Restoration Services LLC Top agencies VA (Department of Veterans Affairs)	$4,992	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Eurofins Scientific SE Through Eurofins Environment Testing Southeast, LLC Top agencies Navy (Department of the Navy)	$4,658	<0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2025 list; down 18 since FY2023.
76	Ces-Rescon LLC Top agencies USDA (Department of Agriculture)	$4,500	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
77	Hepaco LLC Top agencies USAF (Department of the Air Force)	$3,590	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	First Strike Environmental Co Top agencies USDA (Department of Agriculture)	$3,480	<0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
79	Earth Smart Environmental Solutions LLC Top agencies USDA (Department of Agriculture)	$3,144	<0.1%	Rank history: #18 in FY2021, #21 in FY2022, #54 in FY2023 and not on the FY2025 list; down 25 since FY2023.
80	Northstar Marine Inc. Top agencies DHS (Department of Homeland Security)	$2,977	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Symbio Laboratories US, LLC Top agencies Navy (Department of the Navy)	$2,792	<0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
82	Source Environmental Inc. Top agencies USDA (Department of Agriculture)	$608	<0.1%	Rank history: not on the FY2021 list, #23 in FY2022, #43 in FY2023 and not on the FY2025 list; down 39 since FY2023.

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82 of 88 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 $21.2 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 F107 contractors in FY2024?

1. Tahkox E2-Whitetail LLC ($3.73M), 2. Ones Whitetail Joint Venture LLC ($2.35M), 3. Wsp-Versar JV ($1.25M), 4. Bluestone Interspec JV, LLC ($1.04M), 5. Enviro-Terra Inc. ($996K), 6. Whitetail Environmental, LLC ($766K), 7. Lata-Cti Environmental Services LLC ($662K), 8. DK Environmental & Construction Services, Inc. ($638K), 9. Broadview Waste Solutions, Inc. ($625K), 10. Environmental Science Corporation ($557K).

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