Top 29 Contractors in PSC B528: Regulatory Studies, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies EPA (Environmental Protection Agency)	$6,576,750	17.5%	Rank history: #1 in FY2021, #1 in FY2023 and #3 in FY2024; unchanged since FY2021.
2	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$5,101,703	13.6%	Rank history: #2 in FY2021, #2 in FY2023 and not on the FY2024 list; unchanged since FY2021.
3	Lewis & Ellis, LLC Top agencies HHS (Department of Health and Human Services)	$3,309,406	8.8%	Rank history: #4 in FY2021 and not on the FY2023–FY2024 lists; up 1 since FY2021.
4	Guidehouse Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$2,304,518	6.1%	Rank history: #5 in FY2021 and not on the FY2023–FY2024 lists; up 1 since FY2021.
5	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$2,125,273	5.7%	Rank history: #6 in FY2021, #23 in FY2023 and not on the FY2024 list; up 1 since FY2021.
6	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$2,021,050	5.4%	Rank history: #29 in FY2021, #4 in FY2023 and #17 in FY2024; up 23 since FY2021.
7	Bluestone Logic, LLC 2 awardees Top agencies DISA (Defense Information Systems Agency)	$1,652,957	4.4%	Rank history: #16 in FY2021, #7 in FY2023 and #4 in FY2024; up 9 since FY2021.
8	R & K Enterprise Solutions Inc. Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation)	$1,546,357	4.1%	Rank history: #8 in FY2021 and not on the FY2023–FY2024 lists; unchanged since FY2021.
9	Korn / Ferry International Through Sensa Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$1,363,857	3.6%	Rank history: #7 in FY2021, #6 in FY2023 and not on the FY2024 list; down 2 since FY2021.
10	General Dynamics Information Technology, Inc. Top agencies EPA (Environmental Protection Agency)	$1,295,000	3.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2024 lists; new.
11	Defined Business Solutions LLC Top agencies DMEA (Defense Microelectronics Activity)	$1,109,987	3.0%	Rank history: not on the FY2021 list, #8 in FY2023 and #6 in FY2024; new.
12	Richard H Sweetman IV Top agencies HHS (Department of Health and Human Services)	$1,078,288	2.9%	Rank history: #9 in FY2021, #9 in FY2023 and #7 in FY2024; down 3 since FY2021.
13	Bolton Health Actuarial, Inc. Top agencies HHS (Department of Health and Human Services)	$1,057,373	2.8%	Rank history: not on the FY2021 list, #11 in FY2023 and #9 in FY2024; new.
14	Susquehanna Actuarial Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$1,050,980	2.8%	Rank history: #10 in FY2021, #10 in FY2023 and #8 in FY2024; down 4 since FY2021.
15	Actuarial Research Corporation Top agencies HHS (Department of Health and Human Services)	$1,041,457	2.8%	Rank history: #11 in FY2021, #12 in FY2023 and #12 in FY2024; down 4 since FY2021.
16	S C & A Inc. Top agencies EPA (Environmental Protection Agency)	$917,350	2.4%	Rank history: #13 in FY2021, #15 in FY2023 and #10 in FY2024; down 3 since FY2021.
17	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. Top agencies EPA (Environmental Protection Agency)	$822,002	2.2%	Rank history: #3 in FY2021 and not on the FY2023–FY2024 lists; down 14 since FY2021.
18	Industrial Economics Inc. Top agencies DHS (Department of Homeland Security) EPA (Environmental Protection Agency)	$622,812	1.7%	Rank history: not on the FY2021 list, #13 in FY2023 and #11 in FY2024; new.
19	Specpro Sustainment and Environmental, LLC Top agencies Navy (Department of the Navy)	$324,018	0.9%	Rank history: not on the FY2021 list, #20 in FY2023 and #16 in FY2024; new.
20	Diane Skipworth Top agencies DHS (Department of Homeland Security)	$220,872	0.6%	Rank history: #17 in FY2021, #21 in FY2023 and #23 in FY2024; down 3 since FY2021.
21	Horsley Witten Group, Inc. Top agencies EPA (Environmental Protection Agency)	$188,979	0.5%	Rank history: #25 in FY2021, #29 in FY2023 and not on the FY2024 list; up 4 since FY2021.
22	Endyna, Inc. Top agencies EPA (Environmental Protection Agency)	$178,419	0.5%	Rank history: #18 in FY2021, #24 in FY2023 and #25 in FY2024; down 4 since FY2021.
23	Safety Management Services Inc. Top agencies Army (Department of the Army)	$102,731	0.3%	Rank history: #22 in FY2021, #26 in FY2023 and not on the FY2024 list; down 1 since FY2021.
24	Bryant Christie Inc. Top agencies USDA (Department of Agriculture)	$100,000	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2024 lists; new.
25	Excellence In Measurement Technology, LLC Top agencies Army (Department of the Army)	$95,000	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2024 lists; new.
26	Eurofins Scientific SE Through Eurofins EAG Materials Science LLC Top agencies USDA (Department of Agriculture)	$81,025	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2024 lists; new.
27	Biopharma Services USA Top agencies HHS (Department of Health and Human Services)	$39,304	0.1%	Rank history: not on the FY2021 list, #22 in FY2023 and not on the FY2024 list; new.
28	AECOM Through AECOM Italia S.P.A. Top agencies Army (Department of the Army)	$31,861	0.1%	Rank history: not on the FY2021 list, #27 in FY2023 and not on the FY2024 list; new.
29	American National Standards Institute Incorporated Top agencies HHS (Department of Health and Human Services)	$25,000	0.1%	Rank history: not on the FY2021 list, #28 in FY2023 and #21 in FY2024; 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 $37.5 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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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