Top 100 Contractors in PSC B599: Other Special Studies and Analysis, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies NASA (National Aeronautics and Space Administration) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$72,142,797	13.5%	Rank history: #2 in FY2021, #1 in FY2023, #2 in FY2024 and #1 in FY2025; up 1 since FY2021.
2	Research Triangle Institute Top agencies HHS (Department of Health and Human Services) NSF (National Science Foundation)	$70,869,275	13.2%	Rank history: #1 in FY2021, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	The Rand Corporation Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$51,356,257	9.6%	Rank history: #3 in FY2021, #3 in FY2023, #6 in FY2024 and #3 in FY2025; unchanged since FY2021.
4	Janus Research Group, LLC Top agencies Army (Department of the Army)	$28,047,282	5.2%	Rank history: #4 in FY2021, #5 in FY2023, #9 in FY2024 and #6 in FY2025; unchanged since FY2021.
5	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies Commerce (Department of Commerce) NASA (National Aeronautics and Space Administration)	$18,296,191	3.4%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; up 40 since FY2021.
6	The Boeing Company 4 awardees Top agencies USAF (Department of the Air Force)	$13,301,064	2.5%	Rank history: #5 in FY2021, #13 in FY2023, #10 in FY2024 and not on the FY2025 list; down 1 since FY2021.
7	AECOM 2 awardees, including AECOM Technical Services, Inc. Top agencies DOT (Department of Transportation) USDA (Department of Agriculture)	$10,509,941	2.0%	Rank history: not on the FY2021 list, not on the FY2023 list, #69 in FY2024 and not on the FY2025 list; up 134 since FY2021.
8	Deloitte Consulting LLP Top agencies PBGC (Pension Benefit Guaranty Corporation) DOJ (Department of Justice)	$10,419,641	1.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
9	RTX Corporation Through Raytheon Company Top agencies Commerce (Department of Commerce)	$10,199,928	1.9%	Rank history: not on the FY2021 list, #41 in FY2023 and not on the FY2024–FY2025 lists; new.
10	Lockheed Martin Corporation 2 awardees Top agencies Commerce (Department of Commerce)	$9,995,445	1.9%	Rank history: #98 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; up 88 since FY2021.
11	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) SSA (Social Security Administration) DOE (Department of Energy)	$9,846,381	1.8%	Rank history: #6 in FY2021, #12 in FY2023, #13 in FY2024 and not on the FY2025 list; down 5 since FY2021.
12	Cssi, LLC Top agencies DOT (Department of Transportation)	$8,760,214	1.6%	Rank history: #8 in FY2021, #11 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
13	The Broad Institute, Inc. Top agencies HHS (Department of Health and Human Services)	$8,743,634	1.6%	Rank history: #7 in FY2021, #19 in FY2023, #5 in FY2024 and #13 in FY2025; down 6 since FY2021.
14	Emory University Top agencies HHS (Department of Health and Human Services)	$8,650,004	1.6%	Rank history: not on the FY2021 list, #4 in FY2023, #17 in FY2024 and #7 in FY2025; up 89 since FY2021.
15	Baylor College of Medicine Top agencies HHS (Department of Health and Human Services)	$8,376,778	1.6%	Rank history: #11 in FY2021, #7 in FY2023, #7 in FY2024 and #8 in FY2025; down 4 since FY2021.
16	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,140,397	1.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
17	L3Harris Technologies, Inc. 2 awardees Top agencies Commerce (Department of Commerce) USAF (Department of the Air Force)	$7,872,640	1.5%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; up 26 since FY2021.
18	Westat, Inc. Top agencies NSF (National Science Foundation) HHS (Department of Health and Human Services)	$7,234,984	1.3%	Rank history: #9 in FY2021, #9 in FY2023, #4 in FY2024 and not on the FY2025 list; down 9 since FY2021.
19	University of Washington Top agencies HHS (Department of Health and Human Services)	$7,166,211	1.3%	Rank history: #25 in FY2021, #22 in FY2023, #19 in FY2024 and #43 in FY2025; up 6 since FY2021.
20	The Chenega Corporation Through Chenega Analytic Business Solutions, LLC Top agencies Army (Department of the Army)	$6,921,221	1.3%	Rank history: #16 in FY2021, #54 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
21	Nova Global Supply and Services LLC 2 awardees, including Valiant Global Defense Services Inc. Top agencies Army (Department of the Army)	$6,300,495	1.2%	Rank history: #12 in FY2021, #26 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
22	Mid Atlantic Technical and Executive Consulting, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$6,291,067	1.2%	Rank history: #22 in FY2021, #8 in FY2023, #11 in FY2024 and #12 in FY2025; unchanged since FY2021.
23	Cooper Zietz Engineers, Inc. Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$6,274,602	1.2%	Rank history: #21 in FY2021, #10 in FY2023, #18 in FY2024 and #62 in FY2025; down 2 since FY2021.
24	Space Systems/Loral LLC Through Lanteris Space LLC Top agencies Commerce (Department of Commerce)	$4,969,346	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
25	Xtec, Incorporated Top agencies HHS (Department of Health and Human Services)	$4,678,595	0.9%	Rank history: not on the FY2021 list, #21 in FY2023, #23 in FY2024 and not on the FY2025 list; new.
26	Group W Inc. Top agencies Navy (Department of the Navy)	$4,501,296	0.8%	Rank history: #13 in FY2021, #27 in FY2023, #14 in FY2024 and #9 in FY2025; down 13 since FY2021.
27	Cardno - Amec Foster Wheeler Public Works Joint Venture Top agencies Navy (Department of the Navy)	$4,041,330	0.8%	Rank history: #65 in FY2021, #18 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2021.
28	Aegis Sciences Corporation Top agencies HHS (Department of Health and Human Services)	$3,554,265	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
29	Systems Planning and Analysis, Inc. Top agencies DARPA (Defense Advanced Research Projects Agency) Navy (Department of the Navy)	$3,552,178	0.7%	Rank history: #19 in FY2021, #34 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
30	Mathematica Inc 2 awardees Top agencies USDA (Department of Agriculture) SSA (Social Security Administration)	$3,488,442	0.7%	Rank history: #18 in FY2021, #6 in FY2023, #3 in FY2024 and not on the FY2025 list; down 12 since FY2021.
31	T&E Technologies, LLC Top agencies Navy (Department of the Navy)	$3,203,593	0.6%	Rank history: #26 in FY2021, #35 in FY2023, #89 in FY2024 and not on the FY2025 list; down 5 since FY2021.
32	Steely LLC Top agencies NSA (Department of Defense National Security Agency)	$2,799,615	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Quantum Leap Research LLC Top agencies NSA (Department of Defense National Security Agency) USAF (Department of the Air Force)	$2,600,000	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	Arrowpoint Technologies Inc. Through Lynchval Systems Worldwide, Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$2,512,446	0.5%	Rank history: #27 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
35	Social Impact Inc. Top agencies USAID (US Agency for International Development)	$2,500,000	0.5%	Rank history: not on the FY2021 list, #28 in FY2023, #21 in FY2024 and not on the FY2025 list; new.
36	KAI Research Inc. Through Navitas Clinical Research Inc. Top agencies HHS (Department of Health and Human Services)	$2,489,032	0.5%	Rank history: #30 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
37	Productable Inc. Top agencies USAF (Department of the Air Force)	$2,434,252	0.5%	Rank history: #35 in FY2021, #16 in FY2023, #73 in FY2024 and not on the FY2025 list; down 2 since FY2021.
38	Integrated Solutions for Systems, Inc. Top agencies USAF (Department of the Air Force)	$2,225,460	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
39	Ea-Bay West Joint Venture LLC Top agencies Army (Department of the Army)	$2,160,942	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
40	ABT Global LLC 2 awardees Top agencies SSA (Social Security Administration) USDA (Department of Agriculture)	$2,153,538	0.4%	Rank history: #17 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
41	The Mitre Corporation Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$2,122,220	0.4%	Rank history: #31 in FY2021, #14 in FY2023, #26 in FY2024 and not on the FY2025 list; down 10 since FY2021.
42	Supply Chain Management & Analysis LLC Top agencies USAF (Department of the Air Force)	$2,000,000	0.4%	Rank history: #79 in FY2021, #42 in FY2023, #41 in FY2024 and not on the FY2025 list; up 37 since FY2021.
43	American Institutes for Research In the Behavioral Sciences Top agencies HHS (Department of Health and Human Services) NSF (National Science Foundation)	$1,758,000	0.3%	Rank history: #46 in FY2021, #65 in FY2023, #60 in FY2024 and #40 in FY2025; up 3 since FY2021.
44	Insight Policy Research Inc 2 awardees Top agencies USDA (Department of Agriculture)	$1,724,908	0.3%	Rank history: #48 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
45	Gannett Fleming Inc. Through GFT Infrastructure, Inc. Top agencies Army (Department of the Army) USTRANSCOM (Department of Defense United States Transportation Command)	$1,713,799	0.3%	Rank history: #34 in FY2021, #39 in FY2023, #79 in FY2024 and not on the FY2025 list; down 11 since FY2021.
46	Rubiconrex Inc. Top agencies NSA (Department of Defense National Security Agency)	$1,584,000	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
47	Guidehouse Inc. Top agencies DOT (Department of Transportation) DOS (Department of State)	$1,579,486	0.3%	Rank history: #85 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2021.
48	CAE Inc. Through CAE USA Mission Solutions Inc. Top agencies Army (Department of the Army)	$1,476,863	0.3%	Rank history: not on the FY2021 list, #45 in FY2023 and not on the FY2024–FY2025 lists; up 300 since FY2021.
49	Ovation.io, Inc. Top agencies HHS (Department of Health and Human Services)	$1,461,517	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
50	Rector & Visitors of the University of Virginia Top agencies DOT (Department of Transportation)	$1,419,004	0.3%	Rank history: #39 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2021.
51	Sierra Hydrographics Top agencies Army (Department of the Army)	$1,360,615	0.3%	Rank history: #95 in FY2021, #43 in FY2023, #28 in FY2024 and #35 in FY2025; up 44 since FY2021.
52	Boudreau Associates LLC Top agencies Army (Department of the Army)	$1,218,035	0.2%	Rank history: #41 in FY2021, #52 in FY2023, #51 in FY2024 and #32 in FY2025; down 11 since FY2021.
53	National Opinion Research Center Top agencies NSF (National Science Foundation)	$1,211,513	0.2%	Rank history: not on the FY2021 list, #69 in FY2023, #27 in FY2024 and #21 in FY2025; new.
54	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies USAF (Department of the Air Force)	$1,143,018	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
55	Soliel LLC Top agencies Army (Department of the Army)	$1,121,614	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
56	Global Hydro LLC Top agencies Army (Department of the Army)	$1,098,645	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
57	The American National Red Cross Top agencies HHS (Department of Health and Human Services)	$1,074,737	0.2%	Rank history: #50 in FY2021, #64 in FY2023, #53 in FY2024 and not on the FY2025 list; down 7 since FY2021.
58	Claxton Logistics Services LLC Top agencies Army (Department of the Army)	$1,064,443	0.2%	Rank history: #51 in FY2021, #62 in FY2023, #55 in FY2024 and not on the FY2025 list; down 7 since FY2021.
59	AON Consulting Inc. Through Inpoint, Inc. Top agencies Treasury (Department of the Treasury)	$1,014,000	0.2%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
60	JJR Solutions LLC Top agencies USAF (Department of the Air Force)	$1,012,518	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 101 since FY2021.
61	Ignite Fueling Innovation, Inc. Top agencies Army (Department of the Army)	$939,338	0.2%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
62	Sri International Top agencies NSF (National Science Foundation)	$865,552	0.2%	Rank history: #28 in FY2021, not on the FY2023 list, #77 in FY2024 and #36 in FY2025; down 34 since FY2021.
63	Regents of the University of Michigan Top agencies DOT (Department of Transportation) USDA (Department of Agriculture)	$824,907	0.2%	Rank history: #63 in FY2021, #31 in FY2023, #78 in FY2024 and not on the FY2025 list; unchanged since FY2021.
64	First Environment Inc. Top agencies Army (Department of the Army)	$819,318	0.2%	Rank history: #24 in FY2021, #81 in FY2023, #22 in FY2024 and #22 in FY2025; down 40 since FY2021.
65	National Academy of Public Administration Top agencies DHS (Department of Homeland Security)	$814,213	0.2%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
66	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services) PBGC (Pension Benefit Guaranty Corporation)	$787,736	0.1%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 56 since FY2021.
67	GFT Infrastructure, Inc. Top agencies Army (Department of the Army)	$770,662	0.1%	Rank history: #64 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
68	The Medical College of Wisconsin, Inc. Top agencies DOT (Department of Transportation)	$742,200	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Institute for Defense Analyses Top agencies Commerce (Department of Commerce) DOE (Department of Energy)	$710,000	0.1%	Rank history: #56 in FY2021, #97 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
70	STV HDR Usma Joint Venture Top agencies Army (Department of the Army)	$687,278	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
71	Oneida Nation Through Sustainment & Restoration Services, LLC Top agencies Army (Department of the Army)	$682,911	0.1%	Rank history: #61 in FY2021, #76 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
72	Reli Group Inc. Top agencies CPSC (Consumer Product Safety Commission)	$682,267	0.1%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
73	Rhodium Group LLC Top agencies USAF (Department of the Air Force)	$650,000	0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; up 7 since FY2021.
74	Purvis Systems Inc. Top agencies Navy (Department of the Navy)	$627,399	0.1%	Rank history: #68 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
75	Nexight Group LLC Top agencies HHS (Department of Health and Human Services)	$613,000	0.1%	Rank history: #57 in FY2021, not on the FY2023 list, #72 in FY2024 and not on the FY2025 list; down 18 since FY2021.
76	Science Applications International Corporation Through Engility Services, LLC Top agencies DOT (Department of Transportation)	$577,737	0.1%	Rank history: #36 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; down 40 since FY2021.
77	Bethel-Bem Solutions JV Top agencies Army (Department of the Army)	$554,999	0.1%	Rank history: #78 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
78	University of Maryland, College Park Top agencies USAF (Department of the Air Force)	$543,263	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
79	Pueo Business Solutions LLC Top agencies DOD (Department of Defense)	$536,665	0.1%	Rank history: not on the FY2021 list, #87 in FY2023, #74 in FY2024 and #49 in FY2025; new.
80	Press Ganey Associates Inc Top agencies VA (Department of Veterans Affairs)	$528,879	0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2021.
81	Trimetrix, Inc. Through Walter R Mcdonald & Associates, Inc. Top agencies USDA (Department of Agriculture)	$520,805	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 56 since FY2021.
82	KCG Engineering Group, Inc. Top agencies Navy (Department of the Navy)	$505,592	0.1%	Rank history: #62 in FY2021, #78 in FY2023, #65 in FY2024 and #55 in FY2025; down 20 since FY2021.
83	ICF Macro Inc. Top agencies NSF (National Science Foundation)	$500,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
84	BCT Partners LLC Top agencies DOJ (Department of Justice)	$497,112	0.1%	Rank history: #44 in FY2021, not on the FY2023–FY2024 lists and #61 in FY2025; down 40 since FY2021.
85	Trustees of Boston University 2 awardees Top agencies VA (Department of Veterans Affairs)	$487,632	0.1%	Rank history: not on the FY2021 list, #89 in FY2023, #85 in FY2024 and #59 in FY2025; up 70 since FY2021.
86	SGS Canada Inc 2 awardees, including SGS Axys Analytical Services Ltd. and SGS Korea Co.,Ltd Top agencies DOI (Department of the Interior) Army (Department of the Army) Commerce (Department of Commerce)	$485,945	0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
87	Pollfish Inc. Top agencies DOS (Department of State)	$478,125	0.1%	Rank history: #72 in FY2021, not on the FY2023 list, #82 in FY2024 and not on the FY2025 list; down 15 since FY2021.
88	Virginia Polytechnic Institute & State University Top agencies DOT (Department of Transportation)	$454,936	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #96 in FY2024 and not on the FY2025 list; new.
89	Bosque Ecosystem Monitoring Program Top agencies Army (Department of the Army)	$453,114	0.1%	Rank history: not on the FY2021 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new.
90	Navanti Group LLC Top agencies USSOCOM (United States Special Operations Command) OSD (Office of the Secretary of Defense)	$450,550	0.1%	Rank history: not on the FY2021 list, #74 in FY2023, not on the FY2024 list and #90 in FY2025; up 86 since FY2021.
91	Enviroquest Inc. Top agencies Army (Department of the Army)	$441,509	0.1%	Rank history: not on the FY2021 list, #94 in FY2023 and not on the FY2024–FY2025 lists; up 141 since FY2021.
92	Hanagita Environmental Resources, Corp. Top agencies DOI (Department of the Interior)	$427,416	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Human Resources Research Organization (Humrro) Top agencies DHS (Department of Homeland Security)	$424,005	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
94	Savan Group, LLC Top agencies DOI (Department of the Interior)	$417,663	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
95	Electromechanical Engineering Associates Inc. Top agencies DOI (Department of the Interior)	$411,476	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Marsh & Mclennan Companies Inc. Through Mercer (Us) LLC Top agencies PBGC (Pension Benefit Guaranty Corporation)	$409,100	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
97	Strategic Enterprise Support Services LLC Top agencies USSOCOM (United States Special Operations Command)	$375,546	0.1%	Rank history: #89 in FY2021, #93 in FY2023, #83 in FY2024 and not on the FY2025 list; down 8 since FY2021.
98	ICF International, Inc. 2 awardees, including ICF Incorporated, L.L.C. and ICF Macro Inc. Top agencies DOJ (Department of Justice) DOL (Department of Labor)	$353,580	0.1%	Rank history: #20 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; down 78 since FY2021.
99	Exodyne, Inc. Through Dynamic Science, Inc. Top agencies DOT (Department of Transportation)	$350,000	0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; down 22 since FY2021.
100	Miriam Hiebert Top agencies Smithsonian (Smithsonian Institution)	$348,535	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 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 $536 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.

Quick answers