Top 54 Contractors in PSC F110: Development of Environmental Impact Statements and Assessments, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DOE (Department of Energy) DOI (Department of the Interior)	$4,130,518	13.1%	Rank history: #2 in FY2021, #26 in FY2022, #34 in FY2024 and #28 in FY2025; up 25 since FY2022.
2	Environmental Management and Planning Solutions Inc. 2 awardees Top agencies DOI (Department of the Interior)	$3,789,263	12.1%	Rank history: #4 in FY2021, #5 in FY2022, #4 in FY2024 and not on the FY2025 list; up 3 since FY2022.
3	Cardno Emerging Markets USA Ltd. Through Stantec GS Inc. Top agencies USAF (Department of the Air Force)	$3,099,711	9.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
4	CDM Smith Inc Through CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$2,671,374	8.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
5	S C & A Inc. Top agencies DHS (Department of Homeland Security)	$2,643,549	8.4%	Rank history: #44 in FY2021, not on the FY2022 list, #2 in FY2024 and #6 in FY2025; returned.
6	Pika International, Inc. Top agencies Army (Department of the Army)	$2,177,297	6.9%	Rank history: #3 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
7	Bay West LLC Top agencies Army (Department of the Army)	$1,341,765	4.3%	Rank history: #9 in FY2021, #6 in FY2022, #5 in FY2024 and #2 in FY2025; down 1 since FY2022.
8	Teya Support Services LLC Top agencies Army (Department of the Army)	$1,276,166	4.1%	Rank history: not on the FY2021 list, #17 in FY2022, #8 in FY2024 and not on the FY2025 list; up 9 since FY2022.
9	Noreas Aptim Environmental Remediation JV Top agencies Navy (Department of the Navy)	$1,178,179	3.7%	Rank history: not on the FY2021 list, #11 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
10	Aerostar Environmental and Construction LLC Top agencies Army (Department of the Army)	$791,399	2.5%	Rank history: #16 in FY2021, #15 in FY2022, #9 in FY2024 and #5 in FY2025; up 5 since FY2022.
11	Calco Enterprises, LLC Top agencies Commerce (Department of Commerce)	$749,911	2.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Universal Consulting Services, LLC Top agencies DHA (Defense Health Agency) Army (Department of the Army)	$736,698	2.3%	Rank history: #12 in FY2021, #9 in FY2022, #10 in FY2024 and #30 in FY2025; down 3 since FY2022.
13	Salas O'brien Federal, LLC Top agencies Army (Department of the Army)	$619,581	2.0%	Rank history: #40 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
14	Vanasse Hangen Brustlin, Inc. Top agencies DOI (Department of the Interior)	$539,448	1.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
15	AECOM 2 awardees, including AECOM Technical Services, Inc. Top agencies Commerce (Department of Commerce)	$509,545	1.6%	Rank history: #17 in FY2021, #13 in FY2022, #20 in FY2024 and not on the FY2025 list; down 2 since FY2022.
16	Logan Simpson Design Inc. Top agencies DOI (Department of the Interior)	$446,556	1.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
17	Engineering / Remediation Resources Group, Inc. Top agencies Navy (Department of the Navy)	$442,948	1.4%	Rank history: #41 in FY2021, #14 in FY2022, #32 in FY2024 and #33 in FY2025; down 3 since FY2022.
18	Golder Europe Service Centre SRL Through WSP USA Solutions Inc. Top agencies USDA (Department of Agriculture)	$292,843	0.9%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2024 and #27 in FY2025; new.
19	Tetra Tech, Inc. 2 awardees Top agencies DHS (Department of Homeland Security)	$284,306	0.9%	Rank history: #13 in FY2021, #20 in FY2022, #16 in FY2024 and #13 in FY2025; up 1 since FY2022.
20	Corvus Design, Inc. Top agencies DOI (Department of the Interior)	$281,454	0.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
21	J & A Occupational Health and Safety Consulting LLC Top agencies VA (Department of Veterans Affairs)	$218,016	0.7%	Rank history: #21 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
22	Claene Group LLC Top agencies DLA (Defense Logistics Agency)	$207,032	0.7%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2024 and #19 in FY2025; new.
23	Kmea Through Patriot Joint Venture Top agencies Navy (Department of the Navy)	$195,821	0.6%	Rank history: #28 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
24	Aarcher Inc Top agencies DOI (Department of the Interior)	$178,906	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	HGS Engineering Inc. Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$169,366	0.5%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #25 in FY2025; new.
26	Hdr, Inc. 2 awardees, including HDR Environmental, Operations and Construction, Inc. Top agencies Navy (Department of the Navy)	$167,156	0.5%	Rank history: #8 in FY2021, #8 in FY2022, #28 in FY2024 and #22 in FY2025; down 18 since FY2022.
27	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Navy (Department of the Navy)	$163,556	0.5%	Rank history: #11 in FY2021, #25 in FY2022, #14 in FY2024 and not on the FY2025 list; down 2 since FY2022.
28	RSI Remediation, LLC Top agencies Navy (Department of the Navy)	$116,755	0.4%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and not on the FY2025 list; new.
29	ST George Tanaq Corp Through Tanaq Environmental LLC Top agencies Navy (Department of the Navy)	$115,343	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Amentum Services, Inc. Top agencies DHS (Department of Homeland Security)	$100,000	0.3%	Rank history: not on the FY2021 list, #16 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
31	Solv LLC Top agencies GSA (General Services Administration) DOE (Department of Energy)	$93,367	0.3%	Rank history: not on the FY2021 list, #19 in FY2022, #39 in FY2024 and #47 in FY2025; down 12 since FY2022.
32	Itsi Gilbane Japan G.K. Through Gilbane Federal Top agencies Navy (Department of the Navy)	$88,185	0.3%	Rank history: #5 in FY2021, #3 in FY2022 and not on the FY2024–FY2025 lists; down 29 since FY2022.
33	G & RK Consulting Associates LLC Top agencies DLA (Defense Logistics Agency)	$72,844	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies DOI (Department of the Interior)	$65,007	0.2%	Rank history: #32 in FY2021, not on the FY2022 list, #41 in FY2024 and not on the FY2025 list; returned.
35	S&B Christ Consulting, LLC Top agencies Navy (Department of the Navy)	$58,879	0.2%	Rank history: #39 in FY2021, #34 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
36	Terra Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$48,750	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #34 in FY2025; new.
37	Applied Climatologists, Inc. Top agencies Commerce (Department of Commerce)	$46,500	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Wood Environment & Infrastructure Solutions Inc. Through WSP USA Environment & Infrastructure Inc. Top agencies DHS (Department of Homeland Security)	$41,558	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Trustees of Indiana University Top agencies DOI (Department of the Interior)	$35,368	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
40	Whitetail Environmental, LLC Top agencies DHA (Defense Health Agency)	$17,909	0.1%	Rank history: #46 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
41	Government and Military Certification Systems, Inc. Top agencies Army (Department of the Army)	$11,950	<0.1%	Rank history: not on the FY2021 list, #50 in FY2022, #48 in FY2024 and #45 in FY2025; up 9 since FY2022.
42	Eris Information Inc. Top agencies DOI (Department of the Interior)	$11,840	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Higgins and Associates, LLC Top agencies VA (Department of Veterans Affairs)	$10,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Daniel Triman Top agencies Smithsonian (Smithsonian Institution)	$9,900	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
45	American Association for Laboratory Accreditation, Inc. Top agencies Army (Department of the Army)	$9,363	<0.1%	Rank history: #48 in FY2021, #58 in FY2022, #54 in FY2024 and #42 in FY2025; up 13 since FY2022.
46	Jirak Consulting Associates, LLC Top agencies Commerce (Department of Commerce)	$9,250	<0.1%	Rank history: #36 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
47	Endpoint Solutions Corp Top agencies RRB (Railroad Retirement Board)	$8,700	<0.1%	Rank history: #53 in FY2021, #56 in FY2022, #52 in FY2024 and #49 in FY2025; up 9 since FY2022.
48	Microbac Laboratories Inc. Top agencies Commerce (Department of Commerce)	$7,772	<0.1%	Rank history: #50 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
49	RJY Group LLC Top agencies Commerce (Department of Commerce)	$7,692	<0.1%	Rank history: #51 in FY2021, #51 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
50	Neie, Inc. Top agencies DHS (Department of Homeland Security)	$7,384	<0.1%	Rank history: not on the FY2021 list, #48 in FY2022, #47 in FY2024 and #44 in FY2025; down 2 since FY2022.
51	Advanced Environmental Management Group, LLC Top agencies Commerce (Department of Commerce)	$5,746	<0.1%	Rank history: #52 in FY2021, #53 in FY2022, #50 in FY2024 and not on the FY2025 list; up 2 since FY2022.
52	Corelogic Solutions LLC Top agencies EPA (Environmental Protection Agency)	$4,800	<0.1%	Rank history: #18 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; down 34 since FY2022.
53	Elyon International, Inc. Top agencies DOI (Department of the Interior)	$2,936	<0.1%	Rank history: #38 in FY2021, #29 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
54	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$2,531	<0.1%	Rank history: #15 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 27 since FY2022.

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 $31.4 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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