Top 25 Contractors in PSC F111: Industrial Investigations, Surveys and Technical Support for Multiple Pollutants, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Straughan Environmental, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,815,639	20.7%	Rank history: #1 in FY2021 and #1 in FY2025; unchanged since FY2023.
2	Energy and Environment, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,644,498	19.4%	Rank history: not on the FY2021 list and #10 in FY2025; up 1 since FY2023.
3	Applied Ecology Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,104,165	15.5%	Rank history: not on the FY2021 list and #5 in FY2025; new, not ranked in FY2023.
4	Dawson Solutions LLC Top agencies Army (Department of the Army)	$1,234,542	9.1%	Rank history: not on the FY2021 list and #7 in FY2025; up 3 since FY2023.
5	AECOM Technical Services, Inc. Top agencies DOI (Department of the Interior)	$633,486	4.7%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
6	Slsco, Ltd. Top agencies Army (Department of the Army)	$529,262	3.9%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
7	Dawson Mcg, Inc. Top agencies Army (Department of the Army)	$496,164	3.6%	Rank history: not on the FY2021 list and #4 in FY2025; new, not ranked in FY2023.
8	SJS Executives LLC Top agencies VA (Department of Veterans Affairs)	$367,584	2.7%	Rank history: not on the FY2021 list and #6 in FY2025; down 4 since FY2023.
9	Vanasse Hangen Brustlin Inc. Top agencies DOI (Department of the Interior)	$324,820	2.4%	Rank history: not on the FY2021 list and #20 in FY2025; new, not ranked in FY2023.
10	Auxilio Management Services Top agencies Army (Department of the Army)	$224,197	1.6%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
11	White Shield, Inc. Top agencies DOI (Department of the Interior)	$212,396	1.6%	Rank history: not on the FY2021 list and #19 in FY2025; up 4 since FY2023.
12	CDM Smith Inc Through CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$171,621	1.3%	Rank history: not on the FY2021 list and not on the FY2025 list; down 6 since FY2023.
13	Jacobs Government Services Company Through Jacobs Engineering Group Inc. Top agencies DOI (Department of the Interior)	$142,866	1.0%	Rank history: not on the FY2021 list and #9 in FY2025; new, not ranked in FY2023.
14	Meca Consulting Inc. Top agencies DHS (Department of Homeland Security)	$68,152	0.5%	Rank history: #11 in FY2021 and #14 in FY2025; down 5 since FY2023.
15	QTS Group LLC Top agencies Navy (Department of the Navy)	$55,000	0.4%	Rank history: not on the FY2021 list and #15 in FY2025; down 2 since FY2023.
16	Ati, Inc. Top agencies DOI (Department of the Interior) Navy (Department of the Navy)	$49,937	0.4%	Rank history: not on the FY2021 list and #28 in FY2025; new, not ranked in FY2023.
17	EA Engineering Science and Technology Inc. PBC Top agencies DOI (Department of the Interior)	$45,343	0.3%	Rank history: not on the FY2021 list and #12 in FY2025; new, not ranked in FY2023.
18	Rivers Environmental, Llc. Top agencies DHS (Department of Homeland Security)	$44,400	0.3%	Rank history: not on the FY2021 list and #17 in FY2025; down 8 since FY2023.
19	Advanced Environmental Management Group, LLC Top agencies USDA (Department of Agriculture)	$23,964	0.2%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
20	Cardinal Compliance Consultants, LLC Top agencies Navy (Department of the Navy)	$12,903	0.1%	Rank history: #13 in FY2021 and #24 in FY2025; down 9 since FY2023.
21	WSP USA Environment & Infrastructure Inc. Top agencies DOI (Department of the Interior)	$10,303	0.1%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
22	CDM Federal Programs Corporation Top agencies EPA (Environmental Protection Agency)	$10,000	0.1%	Rank history: not on the FY2021 list and not on the FY2025 list; new, not ranked in FY2023.
23	Phase Associates LLC Top agencies Navy (Department of the Navy)	$3,889	<0.1%	Rank history: #20 in FY2021 and #25 in FY2025; returned, not ranked in FY2023 but on an earlier list.
24	Cosmos Technologies Inc. Top agencies Navy (Department of the Navy)	$3,200	<0.1%	Rank history: not on the FY2021 list and #26 in FY2025; down 6 since FY2023.
25	Environmental Restoration LLC Top agencies EPA (Environmental Protection Agency)	$901	<0.1%	Rank history: not on the FY2021 list and #13 in FY2025; new, not ranked in FY2023.

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 $13.6 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 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