Top 73 Contractors in PSC F115: Environmental Systems Protection – Environmental Consulting and Legal Support, FY2025

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$20,457,179	18.0%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Weston-Techlaw JV LLC Top agencies EPA (Environmental Protection Agency)	$6,487,722	5.7%	Rank history: #16 in FY2021, #3 in FY2022, #1 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Research Triangle Institute Top agencies EPA (Environmental Protection Agency)	$5,188,941	4.6%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Stantec Inc. 2 awardees, including Stantec Consulting Services Inc. Top agencies DOI (Department of the Interior)	$5,145,625	4.5%	Rank history: not on the FY2021–FY2024 lists; new.
5	CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$4,653,662	4.1%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 5 since FY2024.
6	The Cadmus Group LLC Top agencies EPA (Environmental Protection Agency)	$4,294,849	3.8%	Rank history: #45 in FY2021, #72 in FY2022, not on the FY2023 list and #35 in FY2024; up 29 since FY2024.
7	ABT Global LLC Top agencies EPA (Environmental Protection Agency)	$3,395,786	3.0%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and #4 in FY2024; down 3 since FY2024.
8	Arctic Slope Regional Corporation Through Environmental Quality Management, Inc. Top agencies USAF (Department of the Air Force)	$3,235,712	2.9%	Rank history: not on the FY2021–FY2024 lists; new.
9	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies EPA (Environmental Protection Agency)	$3,034,581	2.7%	Rank history: not on the FY2021 list, #19 in FY2022, #91 in FY2023 and #5 in FY2024; down 4 since FY2024.
10	Spatial Front Inc Top agencies Commerce (Department of Commerce)	$2,706,929	2.4%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #15 in FY2024; up 5 since FY2024.
11	Oneida Total Integrated Enterprises LLC Top agencies USAF (Department of the Air Force)	$2,534,431	2.2%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; down 2 since FY2024.
12	Tetra Tech, Inc. Top agencies DOE (Department of Energy)	$2,487,976	2.2%	Rank history: not on the FY2021 list, #21 in FY2022, #23 in FY2023 and #29 in FY2024; up 17 since FY2024.
13	Property & Environmental Management Inc. Top agencies HHS (Department of Health and Human Services)	$2,257,102	2.0%	Rank history: not on the FY2021–FY2024 lists; new.
14	S C & A Inc. Top agencies EPA (Environmental Protection Agency) DOE (Department of Energy)	$1,644,100	1.4%	Rank history: #26 in FY2021, #13 in FY2022, #7 in FY2023 and #6 in FY2024; down 8 since FY2024.
15	CCI Facility Support Services LLC Top agencies Army (Department of the Army)	$1,633,000	1.4%	Rank history: not on the FY2021 list, #16 in FY2022, #22 in FY2023 and #14 in FY2024; down 1 since FY2024.
16	Coterie Environmental LLC Top agencies Army (Department of the Army)	$1,499,880	1.3%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 5 since FY2024.
17	Sustainment & Restoration Services, LLC Top agencies USAF (Department of the Air Force)	$1,452,899	1.3%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 1 since FY2024.
18	The Solution Foundry, LLC Top agencies USAF (Department of the Air Force)	$957,671	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
19	Environmental Research Group LLC Top agencies Army (Department of the Army) WHS (DOD Washington Headquarters Service)	$897,948	0.8%	Rank history: #12 in FY2021, #18 in FY2022, #34 in FY2023 and #20 in FY2024; up 1 since FY2024.
20	Potomac-Hudson Engineering Inc Top agencies GSA (General Services Administration)	$886,133	0.8%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and #42 in FY2024; up 22 since FY2024.
21	Whitetail Environmental, LLC Top agencies DOI (Department of the Interior)	$845,868	0.7%	Rank history: #18 in FY2021, #24 in FY2022, #19 in FY2023 and #19 in FY2024; down 2 since FY2024.
22	Oneida Environmental, LLC Top agencies DOI (Department of the Interior)	$796,390	0.7%	Rank history: not on the FY2021–FY2023 lists and #13 in FY2024; down 9 since FY2024.
23	Avanti Corporation Top agencies EPA (Environmental Protection Agency)	$756,686	0.7%	Rank history: not on the FY2021 list, #66 in FY2022, #15 in FY2023 and #7 in FY2024; down 16 since FY2024.
24	Engineering/Remediation Resources Group Inc. Top agencies USDA (Department of Agriculture)	$613,803	0.5%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 1 since FY2024.
25	Horsley Witten Group, Inc. Top agencies EPA (Environmental Protection Agency)	$449,101	0.4%	Rank history: #19 in FY2021, #37 in FY2022, #18 in FY2023 and #11 in FY2024; down 14 since FY2024.
26	Vibrant Planet, PBC Top agencies DOI (Department of the Interior)	$423,000	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
27	Censeo Consulting Group, Inc. Top agencies EPA (Environmental Protection Agency)	$395,126	0.3%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2024; down 11 since FY2024.
28	Valiant Integrated Services LLC Through Valiant / Alca JV LLC Top agencies Navy (Department of the Navy)	$356,321	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
29	Lynker Corporation Top agencies Commerce (Department of Commerce)	$343,590	0.3%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #26 in FY2024; down 3 since FY2024.
30	Environmental Cost Management, Inc. Top agencies USDA (Department of Agriculture) DOI (Department of the Interior)	$339,165	0.3%	Rank history: not on the FY2021 list, #78 in FY2022, #50 in FY2023 and #27 in FY2024; down 3 since FY2024.
31	Dpra Incorporated Top agencies EPA (Environmental Protection Agency)	$293,740	0.3%	Rank history: #43 in FY2021, #39 in FY2022, #47 in FY2023 and #37 in FY2024; up 6 since FY2024.
32	AECOM Technical Services, Inc. Top agencies DOI (Department of the Interior) GSA (General Services Administration)	$268,144	0.2%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list and #17 in FY2024; down 15 since FY2024.
33	Solv LLC Top agencies DOI (Department of the Interior)	$245,002	0.2%	Rank history: #11 in FY2021, #49 in FY2022, not on the FY2023 list and #53 in FY2024; up 20 since FY2024.
34	Sundance - EA Alliance, LLC Top agencies Army (Department of the Army)	$243,419	0.2%	Rank history: not on the FY2021 list, #71 in FY2022, #51 in FY2023 and not on the FY2024 list; returned.
35	The Ottery Group, Inc. Top agencies DOI (Department of the Interior)	$235,604	0.2%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and not on the FY2024 list; returned.
36	New South Associates, Inc. Top agencies DOT (Department of Transportation) DOI (Department of the Interior)	$232,242	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
37	Brice Solutions, LLC Top agencies DOT (Department of Transportation)	$227,642	0.2%	Rank history: #27 in FY2021, #7 in FY2022, #3 in FY2023 and not on the FY2024 list; returned.
38	Apec Co., Ltd Top agencies Army (Department of the Army)	$204,534	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
39	Lindahl Reed, Inc. Top agencies USDA (Department of Agriculture)	$192,788	0.2%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and not on the FY2024 list; returned.
40	Mihalik Group LLC Top agencies DHA (Defense Health Agency)	$149,460	0.1%	Rank history: #70 in FY2021, #70 in FY2022, #76 in FY2023 and #58 in FY2024; up 18 since FY2024.
41	Chloeta Holdings LLC Top agencies DOI (Department of the Interior)	$138,908	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
42	Hartgen Archeological Associates, Inc. Top agencies USDA (Department of Agriculture)	$137,835	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Mead & Hunt Inc. Top agencies DOT (Department of Transportation)	$124,272	0.1%	Rank history: #80 in FY2021, not on the FY2022 list, #53 in FY2023 and #78 in FY2024; up 35 since FY2024.
44	Devereux Consulting, Inc. Top agencies DOI (Department of the Interior)	$113,738	0.1%	Rank history: #41 in FY2021, not on the FY2022 list, #69 in FY2023 and #46 in FY2024; up 2 since FY2024.
45	DCR Services & Construction Inc. Top agencies DOI (Department of the Interior)	$107,074	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	ASM Affiliates Inc. Top agencies DOI (Department of the Interior)	$104,063	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2024 list; returned.
47	Brenton Consulting LLC Top agencies Commerce (Department of Commerce)	$97,440	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
48	Euroatlantic Partners Top agencies DOS (Department of State)	$95,883	0.1%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 12 since FY2024.
49	JNV Group Top agencies HHS (Department of Health and Human Services)	$88,740	0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 13 since FY2024.
50	Water, Civil and Environmental Incorporated Top agencies USDA (Department of Agriculture)	$63,308	0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and not on the FY2024 list; returned.
51	OYO Corporation, Pacific Top agencies Navy (Department of the Navy)	$63,126	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
52	Jacobs Government Services Company Through Jacobs Engineering Group Inc. Top agencies DOI (Department of the Interior)	$57,469	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
53	Environmental Science Corporation Top agencies Navy (Department of the Navy)	$53,866	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023 and #51 in FY2024; down 2 since FY2024.
54	CTI Environmental Inc Top agencies GSA (General Services Administration)	$47,950	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
55	Water Isac Top agencies EPA (Environmental Protection Agency)	$47,355	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
56	Fed95 LLC Top agencies DOE (Department of Energy)	$42,239	<0.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; down 16 since FY2024.
57	Spring Fountain Studios LLC Top agencies USDA (Department of Agriculture)	$38,420	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
58	Aquarange Research LLC Top agencies DOI (Department of the Interior)	$34,498	<0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #81 in FY2023 and #79 in FY2024; up 21 since FY2024.
59	NV5 Geospatial, Inc. Top agencies GSA (General Services Administration)	$29,802	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Advanced Matrix, Inc. Top agencies DHS (Department of Homeland Security)	$29,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and #87 in FY2024; up 27 since FY2024.
61	Riverfront Safety & Health, LC Top agencies VA (Department of Veterans Affairs)	$27,595	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Green Living Consulting LLC Top agencies Smithsonian (Smithsonian Institution)	$22,500	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #100 in FY2023 and not on the FY2024 list; returned.
63	Relx Inc. Through Elsevier Inc. Top agencies HHS (Department of Health and Human Services)	$20,672	<0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 31 since FY2024.
64	Blackhawk Environmental Inc. Top agencies VA (Department of Veterans Affairs)	$20,220	<0.1%	Rank history: #82 in FY2021, #92 in FY2022, #94 in FY2023 and #93 in FY2024; up 29 since FY2024.
65	Purdue Applied Research Institute, LLC Top agencies DOE (Department of Energy)	$17,740	<0.1%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #34 in FY2024; down 31 since FY2024.
66	Advanced Environmental Management Group, LLC Top agencies DOI (Department of the Interior)	$15,679	<0.1%	Rank history: #91 in FY2021, not on the FY2022–FY2023 lists and #97 in FY2024; up 31 since FY2024.
67	Aarcher, Inc. Top agencies DOE (Department of Energy)	$15,502	<0.1%	Rank history: #100 in FY2021 and not on the FY2022–FY2024 lists; returned.
68	Scout Environmental, Inc. Top agencies VA (Department of Veterans Affairs)	$14,983	<0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; up 30 since FY2024.
69	Lake Roosevelt Forum Top agencies DOI (Department of the Interior)	$13,100	<0.1%	Rank history: #96 in FY2021, not on the FY2022–FY2023 lists and #100 in FY2024; up 31 since FY2024.
70	Whitetail/LRS LLC Top agencies Army (Department of the Army)	$12,109	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 31 since FY2024.
71	Colorado Department of Public Health & Environment Top agencies DOI (Department of the Interior)	$5,901	<0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 18 since FY2024.
72	Sourcewater Consulting LLC Top agencies DOI (Department of the Interior)	$4,803	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
73	Ttl, Inc. Top agencies VA (Department of Veterans Affairs)	$3,500	<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 $113 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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