Top 50 Contractors in PSC F110: Development of Environmental Impact Statements and Assessments, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Pika International Inc. Top agencies Army (Department of the Army)	$3,369,471	16.8%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	Bay West LLC Top agencies Army (Department of the Army)	$1,813,933	9.0%	Rank history: #9 in FY2021, #6 in FY2022, #7 in FY2023 and #5 in FY2024; up 3 since FY2024.
3	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$1,579,458	7.9%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; up 3 since FY2024.
4	Bayside Engineering Construction Inc. Top agencies Navy (Department of the Navy)	$1,398,525	7.0%	Rank history: #37 in FY2021, #1 in FY2022, not on the FY2023 list and #15 in FY2024; up 11 since FY2024.
5	Aerostar Environmental and Construction LLC Top agencies Army (Department of the Army)	$835,320	4.2%	Rank history: #16 in FY2021, #15 in FY2022, #10 in FY2023 and #9 in FY2024; up 4 since FY2024.
6	S C & A Inc. Top agencies DHS (Department of Homeland Security)	$799,546	4.0%	Rank history: #44 in FY2021, not on the FY2022 list, #5 in FY2023 and #2 in FY2024; down 4 since FY2024.
7	Hamer Environmental Limited Partnership Top agencies DOI (Department of the Interior)	$783,653	3.9%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; up 16 since FY2024.
8	AECOM Technical Services, Inc. Top agencies Commerce (Department of Commerce)	$778,767	3.9%	Rank history: #55 in FY2021, #37 in FY2022, not on the FY2023 list and #19 in FY2024; up 11 since FY2024.
9	The NDN Companies Top agencies Army (Department of the Army)	$763,134	3.8%	Rank history: not on the FY2021–FY2024 lists; new.
10	Sustainment & Restoration Services, LLC Top agencies Navy (Department of the Navy)	$724,170	3.6%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 8 since FY2024.
11	North Wind-Ea II JV, LLC Top agencies Army (Department of the Army)	$631,753	3.1%	Rank history: not on the FY2021–FY2024 lists; new.
12	First Environment Inc. Top agencies Army (Department of the Army)	$601,926	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
13	Tetra Tech, Inc. 2 awardees Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$566,246	2.8%	Rank history: #13 in FY2021, #20 in FY2022, #19 in FY2023 and #16 in FY2024; up 3 since FY2024.
14	Real Model Solutions, Inc. Top agencies Navy (Department of the Navy)	$537,274	2.7%	Rank history: not on the FY2021–FY2024 lists; new.
15	Tehama ECS LLC Top agencies Army (Department of the Army)	$483,875	2.4%	Rank history: not on the FY2021–FY2024 lists; new.
16	Koman Government Solutions LLC Top agencies Army (Department of the Army)	$335,336	1.7%	Rank history: not on the FY2021–FY2024 lists; new.
17	Dawson Solutions LLC Top agencies Army (Department of the Army)	$318,877	1.6%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; up 13 since FY2024.
18	Cherokee Federal Solutions, L.L.C. Top agencies Army (Department of the Army)	$300,601	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
19	Claene Group LLC Top agencies DLA (Defense Logistics Agency)	$262,356	1.3%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #26 in FY2024; up 7 since FY2024.
20	OCH JV Top agencies Navy (Department of the Navy)	$251,869	1.3%	Rank history: not on the FY2021–FY2024 lists; new.
21	Aarcher, Inc. Top agencies DOI (Department of the Interior)	$240,070	1.2%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; up 4 since FY2024.
22	Hdr, Inc. Through HDR Environmental, Operations and Construction, Inc. Top agencies Navy (Department of the Navy)	$221,917	1.1%	Rank history: #8 in FY2021, #8 in FY2022, #26 in FY2023 and #28 in FY2024; up 6 since FY2024.
23	Ramboll Americas Engineering Solutions, Inc. Top agencies EPA (Environmental Protection Agency)	$195,486	1.0%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 20 since FY2024.
24	HDR and Tehama Joint Venture Top agencies Army (Department of the Army)	$155,588	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
25	HGS Engineering Inc. Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$141,842	0.7%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and #24 in FY2024; down 1 since FY2024.
26	Tanaq Engineering & Sustainability LLC Top agencies Navy (Department of the Navy)	$103,615	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
27	Golder Europe Service Centre SRL Through WSP USA Solutions Inc. Top agencies DHS (Department of Homeland Security)	$79,204	0.4%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2023 and #17 in FY2024; down 10 since FY2024.
28	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DOI (Department of the Interior) DOE (Department of Energy)	$75,365	0.4%	Rank history: #2 in FY2021, #26 in FY2022, #1 in FY2023 and #34 in FY2024; up 6 since FY2024.
29	Great Lakes Environmental Center, Inc. Top agencies EPA (Environmental Protection Agency)	$74,700	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
30	Universal Consulting Services, LLC Top agencies DHA (Defense Health Agency)	$63,557	0.3%	Rank history: #12 in FY2021, #9 in FY2022, #12 in FY2023 and #10 in FY2024; down 20 since FY2024.
31	Integrity and Honor LLC Top agencies USAF (Department of the Air Force)	$60,126	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
32	Gbsm, Inc. Top agencies DOI (Department of the Interior)	$60,000	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
33	Engineering/Remediation Resources Group Inc. Top agencies Navy (Department of the Navy)	$57,382	0.3%	Rank history: #41 in FY2021, #14 in FY2022, #17 in FY2023 and #32 in FY2024; down 1 since FY2024.
34	Terra Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$45,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023 and not on the FY2024 list; returned.
35	Buecher Debbie C Top agencies Army (Department of the Army)	$43,520	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
36	EA Engineering Science and Technology Inc. PBC Top agencies DOI (Department of the Interior)	$25,229	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
37	Fedwriters, Inc. Top agencies Commerce (Department of Commerce)	$23,100	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
38	Noreas Inc. Through Noreas Aptim Environmental Remediation JV Top agencies Navy (Department of the Navy)	$22,431	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
39	Hyperion Biotechnology, Inc. Top agencies VA (Department of Veterans Affairs)	$21,368	0.1%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; up 3 since FY2024.
40	A To Z Management Consulting, LLC Top agencies DHA (Defense Health Agency)	$16,500	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
41	Fourtune 4 Inc. Top agencies USDA (Department of Agriculture)	$13,350	0.1%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 12 since FY2024.
42	American Association for Laboratory Accreditation, Inc. Top agencies Army (Department of the Army)	$10,600	0.1%	Rank history: #48 in FY2021, #58 in FY2022, #45 in FY2023 and #54 in FY2024; up 12 since FY2024.
43	Interspec, LLC Top agencies DLA (Defense Logistics Agency)	$9,332	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
44	Neie, Inc. Top agencies DHS (Department of Homeland Security)	$7,833	<0.1%	Rank history: not on the FY2021 list, #48 in FY2022, #50 in FY2023 and #47 in FY2024; up 3 since FY2024.
45	Government and Military Certification Systems, Inc. Top agencies Army (Department of the Army)	$6,700	<0.1%	Rank history: not on the FY2021 list, #50 in FY2022, #41 in FY2023 and #48 in FY2024; up 3 since FY2024.
46	Rd3, Inc. Top agencies USDA (Department of Agriculture)	$6,088	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
47	Solv LLC Top agencies USDA (Department of Agriculture)	$5,490	<0.1%	Rank history: not on the FY2021 list, #19 in FY2022, #31 in FY2023 and #39 in FY2024; down 8 since FY2024.
48	Toxicology Excellence for Risk Assessment Top agencies Army (Department of the Army)	$5,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	Endpoint Solutions Corp Top agencies RRB (Railroad Retirement Board)	$4,905	<0.1%	Rank history: #53 in FY2021, #56 in FY2022, #47 in FY2023 and #52 in FY2024; up 3 since FY2024.
50	Gastops Inc. Top agencies USAF (Department of the Air Force)	$729	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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 $20.1 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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