Top 100 Contractors in PSC X1LZ: Lease/Rental of Parking Facilities, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	5600 Fishers Lane LLC Top agencies HHS (Department of Health and Human Services)	$4,068,078	9.4%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2020.
2	The Bank of New York Mellon Corporation Top agencies VA (Department of Veterans Affairs)	$3,826,905	8.8%	Rank history: #1 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
3	Usgbf Nci, LLC Top agencies HHS (Department of Health and Human Services)	$3,290,890	7.6%	Rank history: #4 in FY2022, #4 in FY2023, #3 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
4	Standard Parking Corporation 2 awardees, including SP Plus Corporation and Central Parking Corporation Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) DHS (Department of Homeland Security)	$2,771,008	6.4%	Rank history: #2 in FY2022, #5 in FY2023, #4 in FY2024 and #1 in FY2025; down 2 since FY2020.
5	Forge Company Through Colonial Parking, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) USITC (International Trade Commission)	$2,612,729	6.0%	Rank history: #5 in FY2022, #3 in FY2023, #1 in FY2024 and #3 in FY2025; down 2 since FY2020.
6	Life Safety Group, LLC Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$2,047,768	4.7%	Rank history: #10 in FY2022, #7 in FY2023, #8 in FY2024 and #5 in FY2025; down 2 since FY2020.
7	Usgbf NSF LLC Top agencies NSF (National Science Foundation)	$1,200,000	2.8%	Rank history: #15 in FY2022, #12 in FY2023, #12 in FY2024 and #36 in FY2025; up 6 since FY2020.
8	Basic Technologies Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$1,191,161	2.7%	Rank history: #29 in FY2022, #31 in FY2023, #26 in FY2024 and not on the FY2025 list; up 17 since FY2020.
9	State of California Controllers Office 3 awardees, including Regents of the University of California, College of the Law San Francisco and University of California San Diego Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) Army (Department of the Army)	$895,150	2.1%	Rank history: #16 in FY2022, #8 in FY2023, #29 in FY2024 and not on the FY2025 list; up 1 since FY2020.
10	Potomac Center North Inc. Top agencies DHS (Department of Homeland Security)	$888,418	2.0%	Rank history: #7 in FY2022, #10 in FY2023, #6 in FY2024 and #7 in FY2025; down 3 since FY2020.
11	Parking Management Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services) MSPB (Merit Systems Protection Board)	$865,447	2.0%	Rank history: #60 in FY2022, not on the FY2023 list, #95 in FY2024 and #86 in FY2025; down 2 since FY2020.
12	Colonial Parking, Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$859,996	2.0%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
13	Imperial Parking (U.S.) LLC 4 awardees, including City Center Parking and Republic Parking System, LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State) Treasury (Department of the Treasury)	$805,139	1.9%	Rank history: #11 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
14	Premier Parking LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$783,028	1.8%	Rank history: #13 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
15	Penn Parking Inc. 2 awardees Top agencies HHS (Department of Health and Human Services) MCC (Millennium Challenge Corporation) DHS (Department of Homeland Security)	$720,272	1.7%	Rank history: #6 in FY2022, #13 in FY2023, #15 in FY2024 and #10 in FY2025; down 1 since FY2020.
16	Washington DC IV Fgf, LLC Top agencies Peace Corps	$668,928	1.5%	Rank history: not on the FY2022 list, #90 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
17	Id Fort LLC Top agencies DOJ (Department of Justice)	$643,200	1.5%	Rank history: #9 in FY2022, #14 in FY2023, #11 in FY2024 and #11 in FY2025; down 1 since FY2020.
18	LAZ Parking Ltd, LLC Top agencies EOP (Executive Office of the President) DOJ (Department of Justice)	$576,360	1.3%	Rank history: not on the FY2022–FY2023 lists, #34 in FY2024 and #16 in FY2025; down 7 since FY2020.
19	Denver Hs-Ef Court Place LLC Top agencies Treasury (Department of the Treasury)	$540,000	1.2%	Rank history: #17 in FY2022, #20 in FY2023, #18 in FY2024 and #20 in FY2025; new, not ranked in FY2020.
20	Civic Arena Parking Corporation Top agencies VA (Department of Veterans Affairs)	$507,000	1.2%	Rank history: #33 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
21	Philadelphia Parking Authority Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$501,324	1.2%	Rank history: #14 in FY2022, #18 in FY2023, #5 in FY2024 and #6 in FY2025; up 2 since FY2020.
22	Hyattsville Office 2015 LLC Top agencies HHS (Department of Health and Human Services)	$476,620	1.1%	Rank history: #20 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
23	Rock Spring Parking Facility LLC Top agencies HHS (Department of Health and Human Services)	$473,532	1.1%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
24	370 Lenfant Owner LLC Top agencies DOJ (Department of Justice)	$460,472	1.1%	Rank history: #18 in FY2022, #22 in FY2023, #19 in FY2024 and #28 in FY2025; down 6 since FY2020.
25	One Parking Inc. 3 awardees, including 375 HUD Parking LLC and One Parking 6700 Rockledge Inc. Top agencies DOJ (Department of Justice) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$425,088	1.0%	Rank history: #19 in FY2022, #49 in FY2023, #59 in FY2024 and #57 in FY2025; up 12 since FY2020.
26	LAZ Karp Associates LLC Through LAZ Parking Ltd, LLC Top agencies CSOSA (Court Services and Offender Supervision Agency) DOJ (Department of Justice) DHS (Department of Homeland Security)	$420,984	1.0%	Rank history: #8 in FY2022, #6 in FY2023, #9 in FY2024 and not on the FY2025 list; down 9 since FY2020.
27	Park America Inc. Top agencies FTC (Federal Trade Commission) NMB (National Mediation Board) NEA (National Endowment for the Arts)	$417,716	1.0%	Rank history: #24 in FY2022, #19 in FY2023, #13 in FY2024 and #25 in FY2025; down 5 since FY2020.
28	The Shops & Garage At Canal Place LLC Top agencies DHS (Department of Homeland Security)	$410,904	0.9%	Rank history: #35 in FY2022, #46 in FY2023, #23 in FY2024 and #31 in FY2025; down 4 since FY2020.
29	Boyd Bethesda GSA LLC Top agencies HHS (Department of Health and Human Services)	$367,494	0.8%	Rank history: #30 in FY2022, #27 in FY2023, #27 in FY2024 and not on the FY2025 list; down 2 since FY2020.
30	Usgbf One Liberty Center LLC Top agencies Navy (Department of the Navy)	$356,195	0.8%	Rank history: #12 in FY2022, #11 in FY2023, #17 in FY2024 and #12 in FY2025; down 4 since FY2020.
31	NGP V Parklawn MD LLC Top agencies HHS (Department of Health and Human Services)	$344,102	0.8%	Rank history: #31 in FY2022, #30 in FY2023, #45 in FY2024 and #96 in FY2025; down 2 since FY2020.
32	275 WS Realty LLC Top agencies EPA (Environmental Protection Agency)	$342,912	0.8%	Rank history: #41 in FY2022, #43 in FY2023, #47 in FY2024 and #47 in FY2025; down 2 since FY2020.
33	The Johns Hopkins Health System Corporation Top agencies HHS (Department of Health and Human Services)	$334,530	0.8%	Rank history: #32 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
34	Interpark LLC 5 awardees Top agencies DOJ (Department of Justice) HUD (Department of Housing and Urban Development) USDA (Department of Agriculture)	$322,080	0.7%	Rank history: #28 in FY2022, #28 in FY2023, not on the FY2024 list and #27 in FY2025; up 5 since FY2020.
35	Goddard Value-Add Office Fund II, LP Top agencies USAID (US Agency for International Development)	$312,476	0.7%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
36	NGP V Fishers MD LLC Top agencies HHS (Department of Health and Human Services)	$302,235	0.7%	Rank history: #34 in FY2022, #68 in FY2023, #86 in FY2024 and #80 in FY2025; down 2 since FY2020.
37	Ecology Mir Group LLC Top agencies DOJ (Department of Justice) DOI (Department of the Interior)	$284,138	0.7%	Rank history: #22 in FY2022, #17 in FY2023, #35 in FY2024 and #44 in FY2025; up 100 since FY2020.
38	Massachusetts Port Authority Top agencies DHS (Department of Homeland Security)	$273,000	0.6%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
39	ACE Parking Management Inc. Top agencies DHS (Department of Homeland Security) EPA (Environmental Protection Agency) DOJ (Department of Justice)	$214,625	0.5%	Rank history: #70 in FY2022, #55 in FY2023, #72 in FY2024 and #82 in FY2025; down 4 since FY2020.
40	CIM Urban Reit Properties VI, L.P. Top agencies ED (Department of Education)	$211,843	0.5%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
41	Teachers Insurance and Annuity Association of America Through Interpark LLC Top agencies DOJ (Department of Justice) DOL (Department of Labor) Army (Department of the Army)	$206,939	0.5%	Rank history: #42 in FY2022, #39 in FY2023, #43 in FY2024 and #43 in FY2025; up 2 since FY2020.
42	ND Properties LLC Top agencies HHS (Department of Health and Human Services)	$206,546	0.5%	Rank history: #47 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; down 37 since FY2020.
43	Manhattan Parking System Park Ave Corporation Top agencies DOS (Department of State)	$203,940	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Memphis Management Group, LLC Top agencies Army (Department of the Army)	$200,370	0.5%	Rank history: not on the FY2022–FY2023 lists, #58 in FY2024 and #50 in FY2025; up 5 since FY2020.
45	NDC Parking, LLC Top agencies Treasury (Department of the Treasury)	$195,750	0.5%	Rank history: #46 in FY2022, #40 in FY2023, #42 in FY2024 and #38 in FY2025; up 19 since FY2020.
46	ABM Industries Inc. 2 awardees, including ABM Industry Groups, LLC Top agencies DOJ (Department of Justice) USDA (Department of Agriculture)	$169,326	0.4%	Rank history: #48 in FY2022, #26 in FY2023, #48 in FY2024 and #99 in FY2025; up 5 since FY2020.
47	Quikpark Inc Top agencies DHS (Department of Homeland Security)	$159,793	0.4%	Rank history: #49 in FY2022, #63 in FY2023, #63 in FY2024 and not on the FY2025 list; up 68 since FY2020.
48	Hospital of the Good Samaritan Corp the Through PIH Health Good Samaritan Hospital Top agencies DOJ (Department of Justice)	$136,185	0.3%	Rank history: #62 in FY2022, #69 in FY2023, #75 in FY2024 and #69 in FY2025; new, not ranked in FY2020.
49	Trade Center Management Associates L.L.C. Top agencies Commerce (Department of Commerce)	$118,590	0.3%	Rank history: #44 in FY2022, #33 in FY2023, #44 in FY2024 and #29 in FY2025; down 1 since FY2020.
50	Realen Gateway Development Associates, L.P. Top agencies EPA (Environmental Protection Agency)	$118,080	0.3%	Rank history: #57 in FY2022, #60 in FY2023, #64 in FY2024 and #83 in FY2025; unchanged since FY2020.
51	615 Chestnut Master Lease LP Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$117,656	0.3%	Rank history: #51 in FY2022, #47 in FY2023, #55 in FY2024 and #52 in FY2025; up 92 since FY2020.
52	Spothero, Inc. Top agencies Treasury (Department of the Treasury)	$109,096	0.3%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
53	LOS Angeles City of Through City of LOS Angeles Top agencies VA (Department of Veterans Affairs)	$105,600	0.2%	Rank history: #58 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
54	Best Park LLC Top agencies Army (Department of the Army)	$100,002	0.2%	Rank history: #55 in FY2022, #51 in FY2023, #56 in FY2024 and #49 in FY2025; unchanged since FY2020.
55	Middlesex Community College Top agencies VA (Department of Veterans Affairs)	$98,550	0.2%	Rank history: not on the FY2022 list, #62 in FY2023, #65 in FY2024 and #62 in FY2025; new, not ranked in FY2020.
56	Mckinley Properties, Inc. Top agencies DOI (Department of the Interior)	$86,400	0.2%	Rank history: #63 in FY2022, #59 in FY2023, #66 in FY2024 and not on the FY2025 list; up 5 since FY2020.
57	JBG Smithproperties 2 awardees, including Cesc Trs, L.l.c and Jbgs / TRS LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$85,860	0.2%	Rank history: #45 in FY2022, #45 in FY2023, #68 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
58	Pro Park, LLC Top agencies DOS (Department of State)	$85,440	0.2%	Rank history: #64 in FY2022, #83 in FY2023, #16 in FY2024 and #13 in FY2025; down 12 since FY2020.
59	Messiah Evangelical Lutheran Church of Fargo Top agencies VA (Department of Veterans Affairs)	$82,368	0.2%	Rank history: #66 in FY2022, #67 in FY2023, #73 in FY2024 and #70 in FY2025; up 4 since FY2020.
60	7201 Wisconsin LLC Top agencies HHS (Department of Health and Human Services)	$82,053	0.2%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 34 since FY2020.
61	The Center. L.l.c. Top agencies VA (Department of Veterans Affairs)	$81,951	0.2%	Rank history: #65 in FY2022, #66 in FY2023, #71 in FY2024 and #66 in FY2025; new, not ranked in FY2020.
62	American Auto Parks LLC Top agencies DOE (Department of Energy)	$77,406	0.2%	Rank history: #69 in FY2022, #71 in FY2023, #77 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
63	Miami Parking Authority Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$76,064	0.2%	Rank history: #78 in FY2022, #85 in FY2023, #100 in FY2024 and #90 in FY2025; up 5 since FY2020.
64	Red Orange North America Inc. Top agencies DHS (Department of Homeland Security)	$73,725	0.2%	Rank history: #61 in FY2022, #98 in FY2023, #83 in FY2024 and not on the FY2025 list; up 28 since FY2020.
65	City of Houston Top agencies DOJ (Department of Justice)	$71,688	0.2%	Rank history: #74 in FY2022, #72 in FY2023, #76 in FY2024 and #67 in FY2025; up 97 since FY2020.
66	Matomic Operating Co. Top agencies DHS (Department of Homeland Security)	$69,586	0.2%	Rank history: #71 in FY2022, #89 in FY2023, #88 in FY2024 and not on the FY2025 list; up 5 since FY2020.
67	The First United Methodist Church of Gallup, NM DBA Fumc Top agencies HHS (Department of Health and Human Services)	$65,650	0.2%	Rank history: #67 in FY2022, #65 in FY2023, not on the FY2024 list and #46 in FY2025; down 5 since FY2020.
68	Hudson River Park Trust Top agencies DOL (Department of Labor)	$65,536	0.2%	Rank history: #80 in FY2022, #77 in FY2023, #82 in FY2024 and #77 in FY2025; up 28 since FY2020.
69	County of Miami-Dade Through Dade County Aviation Top agencies DHS (Department of Homeland Security)	$64,800	0.1%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
70	Sentinel Square II, L.l.c Top agencies FEC (Federal Election Commission)	$60,000	0.1%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
71	City of Orlando Top agencies DOJ (Department of Justice)	$57,600	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Mid-Atlantic Parking Services Inc. Top agencies Treasury (Department of the Treasury)	$56,160	0.1%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
73	City & County of Denver 2 awardees Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$51,756	0.1%	Rank history: not on the FY2022–FY2025 lists; up 30 since FY2020.
74	10001 New Hampshire Avenue, Inc. Top agencies HHS (Department of Health and Human Services)	$48,204	0.1%	Rank history: #77 in FY2022, #78 in FY2023, #84 in FY2024 and #84 in FY2025; up 8 since FY2020.
75	Marking, LLC Top agencies DHS (Department of Homeland Security)	$48,100	0.1%	Rank history: #79 in FY2022, #80 in FY2023, #92 in FY2024 and not on the FY2025 list; up 12 since FY2020.
76	Advanced Parking Systems Ltd Top agencies DOS (Department of State) DOJ (Department of Justice)	$46,708	0.1%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; down 64 since FY2020.
77	Kids Parking Corp. Top agencies DOJ (Department of Justice)	$46,200	0.1%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
78	Northwestern University Top agencies VA (Department of Veterans Affairs)	$45,920	0.1%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
79	The Polish American Political Club Incorporated Top agencies VA (Department of Veterans Affairs)	$42,804	0.1%	Rank history: #72 in FY2022, #81 in FY2023, #79 in FY2024 and #87 in FY2025; up 7 since FY2020.
80	Silver Spring Metro Center, LLLP Top agencies GSA (General Services Administration)	$42,600	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
81	OER Services LLC Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$38,169	0.1%	Rank history: #95 in FY2022, #100 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
82	GPT Properties Trust Top agencies HHS (Department of Health and Human Services)	$36,000	0.1%	Rank history: not on the FY2022–FY2025 lists; down 44 since FY2020.
83	Ayala Properties LLC Top agencies DOJ (Department of Justice)	$33,600	0.1%	Rank history: #83 in FY2022, #94 in FY2023, #98 in FY2024 and #95 in FY2025; up 28 since FY2020.
84	Beaver Properties, L.C. Top agencies VA (Department of Veterans Affairs)	$33,600	0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
85	Cowles Publishing Company Top agencies DOJ (Department of Justice)	$30,243	0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
86	Sky Parking Corp. Top agencies SSA (Social Security Administration)	$30,000	0.1%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
87	University of Hawaii Systems Through University of Hawaii Top agencies Commerce (Department of Commerce)	$28,464	0.1%	Rank history: #85 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
88	Kore 125 John Carpenter LLC Top agencies DHS (Department of Homeland Security)	$25,200	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 35 since FY2020.
89	New York City of Through City of New York Top agencies Commerce (Department of Commerce)	$25,000	0.1%	Rank history: #92 in FY2022, #93 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
90	Preferred Parking Service, Inc. Top agencies DOJ (Department of Justice)	$23,380	0.1%	Rank history: not on the FY2022–FY2025 lists; up 46 since FY2020.
91	Harbour Towne SMI Opco, LLC Top agencies DOJ (Department of Justice)	$22,908	0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
92	City of Bismarck Top agencies DOI (Department of the Interior)	$21,600	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 48 since FY2020.
93	Hallmark Cards, Incorporated Through Crown Center Redevelopment Corp Top agencies DOJ (Department of Justice)	$20,700	<0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
94	Hartford Parking Authority Top agencies DHS (Department of Homeland Security)	$20,475	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
95	Bulfinch Congress Holdings LLC Top agencies HUD (Department of Housing and Urban Development)	$20,400	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
96	Parkway Corporation Top agencies DOL (Department of Labor)	$19,699	<0.1%	Rank history: #88 in FY2022, #96 in FY2023, not on the FY2024 list and #94 in FY2025; new, not ranked in FY2020.
97	Waverly Management Inc. Top agencies DOL (Department of Labor)	$19,500	<0.1%	Rank history: #76 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
98	Worthy Hotels Inc. Top agencies GSA (General Services Administration)	$18,360	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
99	ST Louis City of Through City of ST Louis Parking Division Top agencies Navy (Department of the Navy)	$18,240	<0.1%	Rank history: #98 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
100	Oklahoma Tower Realty Investors LLC Top agencies DOJ (Department of Justice)	$17,556	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 1 since 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 $43.5 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 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.

Quick answers