Top 25 Contractors in PSC F111: Industrial Investigations, Surveys and Technical Support for Multiple Pollutants, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Straughan Environmental, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$3,169,979	39.7%	Rank history: #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	SJS Executives, LLC Top agencies VA (Department of Veterans Affairs)	$968,068	12.1%	Rank history: not on the FY2024–FY2025 lists; up 8 since FY2020.
3	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency) DOJ (Department of Justice)	$709,501	8.9%	Rank history: not on the FY2024–FY2025 lists; unchanged since FY2020.
4	Dawson Solutions, Inc. Top agencies Army (Department of the Army)	$687,911	8.6%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
5	Soil and Land Use Technology, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$641,686	8.0%	Rank history: not on the FY2024–FY2025 lists; up 3 since FY2020.
6	Ahtna Solutions, LLC Top agencies DOI (Department of the Interior)	$339,590	4.3%	Rank history: not on the FY2024–FY2025 lists; down 2 since FY2020.
7	Apec Co., Ltd Top agencies Army (Department of the Army)	$283,080	3.5%	Rank history: not on the FY2024–FY2025 lists; down 2 since FY2020.
8	Bluestone Environmental Group, Inc. Top agencies Army (Department of the Army)	$269,583	3.4%	Rank history: not on the FY2024–FY2025 lists; down 1 since FY2020.
9	Enviroapplications Inc. Top agencies DHS (Department of Homeland Security)	$97,216	1.2%	Rank history: not on the FY2024–FY2025 lists; up 2 since FY2020.
10	Industrial Economics Inc. Top agencies DOI (Department of the Interior)	$71,393	0.9%	Rank history: not on the FY2024–FY2025 lists; up 7 since FY2020.
11	Meca Consulting Inc. Top agencies DHS (Department of Homeland Security)	$63,240	0.8%	Rank history: #14 in FY2024 and #14 in FY2025; new, not ranked in FY2020.
12	Bges, Inc. Top agencies DHS (Department of Homeland Security)	$43,464	0.5%	Rank history: not on the FY2024–FY2025 lists; up 4 since FY2020.
13	Cardinal Compliance Consultants, LLC Top agencies Navy (Department of the Navy)	$39,839	0.5%	Rank history: #20 in FY2024 and #24 in FY2025; down 1 since FY2020.
14	Swca, Incorporated Top agencies USDA (Department of Agriculture)	$24,960	0.3%	Rank history: not on the FY2024–FY2025 lists; unchanged since FY2020.
15	Environmental Compliance Consultants, Inc. Top agencies DOI (Department of the Interior)	$19,851	0.2%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
16	Windjammer Environmental LLC Top agencies Navy (Department of the Navy)	$11,051	0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
17	Atlas Environmental Consulting, LLC Top agencies DOI (Department of the Interior)	$10,385	0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
18	Environmental Control Specialists Inc. Top agencies DHS (Department of Homeland Security)	$9,000	0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
19	Safety Management Resources Corporation Top agencies Navy (Department of the Navy)	$7,095	0.1%	Rank history: not on the FY2024–FY2025 lists; up 2 since FY2020.
20	Phase Associates LLC Top agencies Navy (Department of the Navy)	$5,931	0.1%	Rank history: #23 in FY2024 and #25 in FY2025; up 2 since FY2020.
21	Terracon Consultants Inc. Top agencies DOI (Department of the Interior)	$4,900	0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
22	Triple Canopy Inc. Through Centerra Group, LLC Top agencies Navy (Department of the Navy)	$4,861	0.1%	Rank history: not on the FY2024–FY2025 lists; down 3 since FY2020.
23	Native Hawaiian Community Development Corporation Through GSI North America Inc. Top agencies DOI (Department of the Interior)	$4,606	0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in FY2020.
24	Redd Engineering & Construction, Inc. Top agencies DOI (Department of the Interior)	$3,675	<0.1%	Rank history: not on the FY2024–FY2025 lists; down 9 since FY2020.
25	DKI Restoration, LLC Top agencies DOI (Department of the Interior)	$2,041	<0.1%	Rank history: not on the FY2024–FY2025 lists; new, not ranked in 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 $7.98 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.

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