Top 36 Contractors in PSC AD25: R&D – Defense Other: Services (Operational Systems Development), FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation)	$136,413,087	57.4%	Rank change: up 3 since FY2020.
2	Corecivic, Inc. Top agencies DOJ (Department of Justice)	$32,063,353	13.5%	Rank change: unchanged since FY2020.
3	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DTRA (Defense Threat Reduction Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$17,643,169	7.4%	Rank change: up 4 since FY2020.
4	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy)	$14,329,590	6.0%	Rank change: up 2 since FY2020.
5	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies Navy (Department of the Navy)	$4,812,097	2.0%	Rank change: down 2 since FY2020.
6	RTX Corporation Through Raytheon Company Top agencies Navy (Department of the Navy)	$2,613,521	1.1%	Rank change: up 6 since FY2020.
7	Solentus Inc. Top agencies DOT (Department of Transportation)	$2,130,221	0.9%	Rank change: up 13 since FY2020.
8	Aevex Aerospace, LLC Top agencies USAF (Department of the Air Force)	$1,946,349	0.8%	Rank change: up 13 since FY2020.
9	The Survice Engineering Company LLC Top agencies Army (Department of the Army)	$1,721,420	0.7%	Rank change: up 13 since FY2020.
10	Sussex Rural Electric Cooperative Top agencies Army (Department of the Army)	$1,533,061	0.6%	Rank change: up 13 since FY2020.
11	Data Intelligence LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,524,772	0.6%	Rank change: up 3 since FY2020.
12	JMA Solutions LLC Top agencies DOT (Department of Transportation)	$1,288,227	0.5%	Rank change: up 5 since FY2020.
13	Life Science Logistics, LLC 2 awardees Top agencies HHS (Department of Health and Human Services)	$1,126,853	0.5%	Rank change: down 5 since FY2020.
14	DCS Corporation Top agencies Navy (Department of the Navy)	$816,076	0.3%	Rank change: down 4 since FY2020.
15	Man-Machine Systems Assessment (Msa), Incorporated Top agencies Army (Department of the Army)	$731,439	0.3%	Rank change: up 12 since FY2020.
16	Home2Office Computing Solutions, Inc. Top agencies Navy (Department of the Navy)	$557,000	0.2%	Rank change: up 3 since FY2020.
17	CFD Research Corporation Top agencies Army (Department of the Army)	$503,599	0.2%	Rank change: up 19 since FY2020.
18	Real-Time Analyzers Inc. Top agencies Army (Department of the Army)	$500,000	0.2%	Rank change: up 16 since FY2020.
19	Mapp Biopharmaceutical, Inc. Top agencies Army (Department of the Army)	$499,517	0.2%	Rank change: up 16 since FY2020.
20	Pathovacs Inc. Top agencies Army (Department of the Army)	$469,366	0.2%	Rank change: up 12 since FY2020.
21	Flow Pharma, Inc. Top agencies Army (Department of the Army)	$462,510	0.2%	Rank change: up 10 since FY2020.
22	University System of Maryland Through University of Maryland, College Park Top agencies DOT (Department of Transportation)	$416,843	0.2%	Rank change: up 6 since FY2020.
23	Vision Engineering Solutions LLC Top agencies USAF (Department of the Air Force)	$200,000	0.1%	Rank change: up 7 since FY2020.
24	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy)	$61,300	<0.1%	Rank change: down 13 since FY2020.
25	Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy)	$40,921	<0.1%	Rank change: down 1 since FY2020.
26	United States Tower Services, Limited Top agencies DOT (Department of Transportation)	$26,433	<0.1%	Rank change: up 29 since FY2020.
27	Schweitzer Engineering Laboratories Inc. Top agencies Navy (Department of the Navy)	$5,000	<0.1%	Rank change: up 14 since FY2020.
28	Swain Online Inc. Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
29	Object Ctalk, Inc. Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
30	Tri-Force Consulting Services Inc. Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
31	Intellisys Solutions Group LLC Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
32	Materials Sciences LLC Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
33	Navmar Applied Sciences Corp Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
34	Premier Systems Sales Ltd Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
35	TDI Technologies, Inc. Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: new, not ranked in FY2020.
36	Project Support Services, Inc. Top agencies Navy (Department of the Navy)	$2,501	<0.1%	Rank change: 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 $238 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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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