Top 55 Contractors in PSC F110: Development of Environmental Impact Statements and Assessments, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$5,567,193	17.6%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
2	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DOE (Department of Energy)	$2,958,898	9.4%	Rank history: #26 in FY2022, #1 in FY2023, #34 in FY2024 and #28 in FY2025; up 33 since FY2020.
3	Pika International, Inc. Top agencies Army (Department of the Army)	$2,850,216	9.0%	Rank history: #2 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
4	Environmental Management & Planning Solutions LLC Top agencies DOI (Department of the Interior)	$2,470,708	7.8%	Rank history: #5 in FY2022, #2 in FY2023, #4 in FY2024 and not on the FY2025 list; down 1 since FY2020.
5	Itsi Gilbane Japan G.K. Through Gilbane Federal Top agencies Navy (Department of the Navy)	$2,422,269	7.7%	Rank history: #3 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
6	Camp Dresser & Mckee Inc. Through CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$1,966,379	6.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	E W Wells Group LLC Top agencies DOI (Department of the Interior)	$1,419,166	4.5%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
8	Hdr, Inc. 2 awardees, including HDR Environmental, Operations and Construction, Inc. Top agencies Navy (Department of the Navy)	$1,162,855	3.7%	Rank history: #8 in FY2022, #26 in FY2023, #28 in FY2024 and #22 in FY2025; down 2 since FY2020.
9	Bay West LLC Top agencies Army (Department of the Army)	$929,093	2.9%	Rank history: #6 in FY2022, #7 in FY2023, #5 in FY2024 and #2 in FY2025; new, not ranked in FY2020.
10	SES Civil and Environmental LLC Top agencies HHS (Department of Health and Human Services)	$827,808	2.6%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
11	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Navy (Department of the Navy)	$817,261	2.6%	Rank history: #25 in FY2022, #27 in FY2023, #14 in FY2024 and not on the FY2025 list; up 8 since FY2020.
12	Universal Consulting Services, LLC Top agencies Army (Department of the Army)	$719,164	2.3%	Rank history: #9 in FY2022, #12 in FY2023, #10 in FY2024 and #30 in FY2025; new, not ranked in FY2020.
13	Tetra Tech, Inc. 2 awardees, including Tetra TECH EC, Inc. Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture)	$648,793	2.1%	Rank history: #20 in FY2022, #19 in FY2023, #16 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
14	Inya, Inc. Top agencies Navy (Department of the Navy)	$553,823	1.8%	Rank history: #12 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
15	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$497,000	1.6%	Rank history: #27 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
16	Aerostar Environmental and Construction LLC Top agencies Army (Department of the Army)	$474,860	1.5%	Rank history: #15 in FY2022, #10 in FY2023, #9 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
17	AECOM 2 awardees, including AECOM Technical Services, Inc. Top agencies Commerce (Department of Commerce) DOI (Department of the Interior)	$471,965	1.5%	Rank history: #13 in FY2022, #15 in FY2023, #20 in FY2024 and not on the FY2025 list; up 7 since FY2020.
18	Corelogic Solutions LLC Top agencies USDA (Department of Agriculture) EPA (Environmental Protection Agency)	$436,034	1.4%	Rank history: #18 in FY2022, #52 in FY2023, #51 in FY2024 and not on the FY2025 list; up 39 since FY2020.
19	Cherokee Nation Government Solutions, L.L.C. Top agencies DOI (Department of the Interior)	$418,823	1.3%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
20	ECC Insight Philotechnics LLC Top agencies Navy (Department of the Navy)	$282,266	0.9%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
21	J & A Occupational Health and Safety Consulting LLC Top agencies VA (Department of Veterans Affairs)	$273,946	0.9%	Rank history: #22 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
22	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$256,879	0.8%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
23	Leisnoi Diversified Services, LLC Top agencies Navy (Department of the Navy)	$230,331	0.7%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
24	Environmental Chemical Corporation Through ECC Insight LLC Top agencies Navy (Department of the Navy)	$214,643	0.7%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
25	Innovex-Errg Joint Venture Top agencies Navy (Department of the Navy)	$212,938	0.7%	Rank history: #7 in FY2022 and not on the FY2023–FY2025 lists; down 23 since FY2020.
26	Noreas, Inc. Top agencies Navy (Department of the Navy)	$205,318	0.6%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
27	Tanaq-Ecm-8A JV Top agencies Navy (Department of the Navy)	$197,337	0.6%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; down 10 since FY2020.
28	Kmea Through Patriot Joint Venture Top agencies Navy (Department of the Navy)	$196,579	0.6%	Rank history: not on the FY2022 list, #23 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
29	Ruth Villalobos & Associates, Inc. Top agencies Army (Department of the Army)	$184,590	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Davies, Linda M Top agencies Commerce (Department of Commerce)	$144,343	0.5%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
31	S.s. Papadopulos & Associates, Inc. Top agencies USDA (Department of Agriculture)	$132,312	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies DOI (Department of the Interior)	$121,660	0.4%	Rank history: not on the FY2022 list, #34 in FY2023, #41 in FY2024 and not on the FY2025 list; down 2 since FY2020.
33	Shekar Engineering, P.l.c Top agencies DLA (Defense Logistics Agency)	$113,991	0.4%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
34	Lindahl Reed, Inc. Top agencies GSA (General Services Administration)	$103,722	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Adanta, Inc. Top agencies Navy (Department of the Navy)	$92,447	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Jirak Consulting Associates, LLC Top agencies Commerce (Department of Commerce)	$70,000	0.2%	Rank history: #30 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
37	Bayside Engineering Construction Inc. Top agencies Navy (Department of the Navy)	$65,957	0.2%	Rank history: #1 in FY2022, not on the FY2023 list, #15 in FY2024 and #4 in FY2025; down 19 since FY2020.
38	Elyon International, Inc. Top agencies DOI (Department of the Interior)	$65,000	0.2%	Rank history: #29 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
39	S&B Christ Consulting, LLC Top agencies Navy (Department of the Navy)	$52,637	0.2%	Rank history: #34 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
40	Salas O'brien Federal, LLC Top agencies Army (Department of the Army)	$52,096	0.2%	Rank history: #10 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; down 32 since FY2020.
41	Engineering / Remediation Resources Group, Inc. Top agencies Navy (Department of the Navy)	$43,249	0.1%	Rank history: #14 in FY2022, #17 in FY2023, #32 in FY2024 and #33 in FY2025; down 37 since FY2020.
42	Archipelago Research and Conservation LLC Top agencies DOI (Department of the Interior)	$26,267	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	EA Engineering, Science, and Technology, Inc., PBC Top agencies DOI (Department of the Interior)	$25,346	0.1%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
44	S C & A Inc. Top agencies DOE (Department of Energy)	$21,000	0.1%	Rank history: not on the FY2022 list, #5 in FY2023, #2 in FY2024 and #6 in FY2025; new, not ranked in FY2020.
45	Werk Logan Simpson J. V. Top agencies DOI (Department of the Interior)	$19,143	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Whitetail Environmental, LLC Top agencies DHA (Defense Health Agency)	$17,078	0.1%	Rank history: #42 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
47	Applied Environmental, Inc. Top agencies Commerce (Department of Commerce)	$16,004	0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
48	American Association for Laboratory Accreditation, Inc. Top agencies Army (Department of the Army)	$9,290	<0.1%	Rank history: #58 in FY2022, #45 in FY2023, #54 in FY2024 and #42 in FY2025; new, not ranked in FY2020.
49	State of Florida Through Florida Department of Environmental Protection Top agencies VA (Department of Veterans Affairs)	$8,250	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Microbac Laboratories Inc. Top agencies Commerce (Department of Commerce)	$7,468	<0.1%	Rank history: #47 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
51	RJY Group LLC Top agencies Commerce (Department of Commerce)	$6,078	<0.1%	Rank history: #51 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
52	Advanced Environmental Management Group, LLC Top agencies Commerce (Department of Commerce)	$5,603	<0.1%	Rank history: #53 in FY2022, #51 in FY2023, #50 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
53	Endpoint Solutions Corp Top agencies RRB (Railroad Retirement Board)	$5,320	<0.1%	Rank history: #56 in FY2022, #47 in FY2023, #52 in FY2024 and #49 in FY2025; up 10 since FY2020.
54	Alisto Inc. Top agencies DHS (Department of Homeland Security)	$4,800	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	AECOM Technical Services, Inc. Top agencies DOI (Department of the Interior)	$2,322	<0.1%	Rank history: #37 in FY2022, not on the FY2023 list, #19 in FY2024 and #8 in FY2025; down 42 since FY2020.

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 $31.6 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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