Top 100 Contractors in PSC R430: Support – Professional: Physical Security and Badging, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Day & Zimmermann Group, Inc. Through SOC LLC Top agencies DOS (Department of State)	$141,246,987	14.9%	Rank history: #3 in FY2021, #4 in FY2023, #13 in FY2024 and not on the FY2025 list; up 2 since FY2021.
2	Inter-Con Security Systems, Inc. Top agencies DOS (Department of State) USDA (Department of Agriculture)	$141,014,199	14.9%	Rank history: #4 in FY2021, #2 in FY2023, #2 in FY2024 and #1 in FY2025; up 2 since FY2021.
3	Triple Canopy Inc. 4 awardees, including Centerra Group, LLC and Omniplex World Services Corporation Top agencies DOS (Department of State) Commerce (Department of Commerce) CSOSA (Court Services and Offender Supervision Agency)	$130,984,259	13.8%	Rank history: #2 in FY2021, #8 in FY2023, #3 in FY2024 and #3 in FY2025; down 1 since FY2021.
4	EOD Technology Inc. Through Acuity - Janus Global, LLC Top agencies DOS (Department of State)	$66,895,438	7.0%	Rank history: #5 in FY2021, #6 in FY2023, #10 in FY2024 and not on the FY2025 list; up 1 since FY2021.
5	Securitas AB Through Paragon Systems Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) USSOCOM (United States Special Operations Command)	$54,214,797	5.7%	Rank history: #6 in FY2021, #5 in FY2023, #4 in FY2024 and not on the FY2025 list; up 1 since FY2021.
6	Diversified Protection Corp Top agencies DOL (Department of Labor) DOD (Department of Defense) EPA (Environmental Protection Agency)	$29,067,597	3.1%	Rank history: #7 in FY2021, #9 in FY2023, #9 in FY2024 and #9 in FY2025; up 1 since FY2021.
7	BC Partners LLP Through Gardaworld Federal Services LLC Top agencies DOS (Department of State)	$21,582,588	2.3%	Rank history: not on the FY2021 list, #3 in FY2023, #1 in FY2024 and #2 in FY2025; new.
8	PAE Government Services Inc. 3 awardees, including PAE Professional Services, LLC and Metis Solutions, LLC Top agencies OSD (Office of the Secretary of Defense) DOS (Department of State) Army (Department of the Army)	$19,518,690	2.1%	Rank history: #8 in FY2021, #12 in FY2023, #73 in FY2024 and not on the FY2025 list; unchanged since FY2021.
9	Afognak Native Corporation 4 awardees, including Alutiiq Advanced Security Solutions LLC, Alutiiq Solutions, LLC and Shields Point LLC Top agencies NASA (National Aeronautics and Space Administration) DOS (Department of State) Army (Department of the Army)	$16,343,940	1.7%	Rank history: #9 in FY2021, #69 in FY2023, #26 in FY2024 and not on the FY2025 list; unchanged since FY2021.
10	S1S Alpha LLC Top agencies DOD (Department of Defense)	$14,533,014	1.5%	Rank history: not on the FY2021 list, #7 in FY2023, #6 in FY2024 and #6 in FY2025; new.
11	Singularity Security Group LLC Top agencies Navy (Department of the Navy)	$12,560,375	1.3%	Rank history: #16 in FY2021, #13 in FY2023, #14 in FY2024 and #11 in FY2025; up 5 since FY2021.
12	Protection Strategies Inc. Top agencies HHS (Department of Health and Human Services) DOE (Department of Energy) DOJ (Department of Justice)	$12,110,372	1.3%	Rank history: #13 in FY2021, #16 in FY2023, #11 in FY2024 and #8 in FY2025; up 1 since FY2021.
13	Chenega Infinity, LLC Top agencies DARPA (Defense Advanced Research Projects Agency) DOI (Department of the Interior)	$11,241,910	1.2%	Rank history: #29 in FY2021, #15 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2021.
14	Golden Svcs, LLC Top agencies DOE (Department of Energy)	$10,238,306	1.1%	Rank history: #12 in FY2021, #17 in FY2023, #24 in FY2024 and not on the FY2025 list; down 2 since FY2021.
15	Elliott Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$9,222,268	1.0%	Rank history: #53 in FY2021, #20 in FY2023, #59 in FY2024 and #75 in FY2025; up 38 since FY2021.
16	Security Walls LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$8,368,562	0.9%	Rank history: #11 in FY2021, #45 in FY2023, #51 in FY2024 and #80 in FY2025; down 5 since FY2021.
17	American Security Programs Inc 2 awardees Top agencies GAO (Government Accountability Office) NARA (National Archives and Records Administration)	$8,338,423	0.9%	Rank history: not on the FY2021 list, #34 in FY2023, #29 in FY2024 and #16 in FY2025; new.
18	Asrc Federal Professional Services, LLC Top agencies Army (Department of the Army)	$8,280,800	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
19	Aegis Defense Services, Through Gardaworld Federal Services LLC Top agencies DOS (Department of State)	$8,055,741	0.8%	Rank history: #1 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
20	Chenega Security International, LLC Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$7,478,894	0.8%	Rank history: #14 in FY2021, #70 in FY2023, #49 in FY2024 and not on the FY2025 list; down 6 since FY2021.
21	Integrated Security Technologies, Inc. Top agencies DHS (Department of Homeland Security)	$6,821,624	0.7%	Rank history: #10 in FY2021, #39 in FY2023, #68 in FY2024 and not on the FY2025 list; down 11 since FY2021.
22	Nana Regional Corporation Inc. 3 awardees, including Lockwood Hills Federal LLC and Rivertech LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$6,402,021	0.7%	Rank history: #18 in FY2021, #62 in FY2023, not on the FY2024 list and #83 in FY2025; down 4 since FY2021.
23	Alutiiq Advanced Security Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$6,153,079	0.6%	Rank history: not on the FY2021 list, #35 in FY2023 and not on the FY2024–FY2025 lists; new.
24	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$5,365,254	0.6%	Rank history: #21 in FY2021, #22 in FY2023, #66 in FY2024 and not on the FY2025 list; down 3 since FY2021.
25	Security Watch Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$5,357,878	0.6%	Rank history: #27 in FY2021, #29 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
26	Culpepper & Associates Security Services Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$4,801,980	0.5%	Rank history: #22 in FY2021, #21 in FY2023, #27 in FY2024 and #28 in FY2025; down 4 since FY2021.
27	Servexo Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$4,311,585	0.5%	Rank history: #54 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
28	Michael Stapleton Associates, Ltd. Top agencies DOS (Department of State) GSA (General Services Administration) HHS (Department of Health and Human Services)	$4,135,512	0.4%	Rank history: #24 in FY2021, #44 in FY2023, not on the FY2024 list and #99 in FY2025; down 4 since FY2021.
29	Hana Industries, Inc. Top agencies DOT (Department of Transportation)	$4,126,861	0.4%	Rank history: #35 in FY2021, #23 in FY2023, #35 in FY2024 and #31 in FY2025; up 6 since FY2021.
30	Strategic Security Corp Top agencies DHS (Department of Homeland Security)	$3,796,669	0.4%	Rank history: not on the FY2021 list, #30 in FY2023, #56 in FY2024 and #17 in FY2025; new.
31	Imaq Walden JV, LLC Top agencies DHS (Department of Homeland Security)	$3,795,068	0.4%	Rank history: not on the FY2021 list, #24 in FY2023, #34 in FY2024 and #29 in FY2025; new.
32	LS3 Inc. Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$3,404,643	0.4%	Rank history: #26 in FY2021, #46 in FY2023, #36 in FY2024 and #36 in FY2025; down 6 since FY2021.
33	The Cogar Group. Ltd. Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$3,296,607	0.3%	Rank history: #37 in FY2021, #19 in FY2023, #22 in FY2024 and #21 in FY2025; up 4 since FY2021.
34	Chronos Systems Inc. Top agencies DOD (Department of Defense)	$2,944,040	0.3%	Rank history: #36 in FY2021, #25 in FY2023, #47 in FY2024 and #39 in FY2025; up 2 since FY2021.
35	Excelsior Defense, Inc. Top agencies VA (Department of Veterans Affairs)	$2,825,126	0.3%	Rank history: #34 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
36	Quadra Control Services Limited. 2 awardees Top agencies DODEA (Department of Defense Education Activity)	$2,813,780	0.3%	Rank history: #91 in FY2021, #47 in FY2023, #95 in FY2024 and not on the FY2025 list; up 55 since FY2021.
37	Pond Security Service GMBH Top agencies DODEA (Department of Defense Education Activity)	$2,754,856	0.3%	Rank history: #20 in FY2021, #43 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2021.
38	Mclaughlin Research Corporation Top agencies Navy (Department of the Navy)	$2,626,916	0.3%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
39	Signet Technologies Inc. 2 awardees, including Convergint Technologies LLC Top agencies HHS (Department of Health and Human Services)	$2,620,203	0.3%	Rank history: #38 in FY2021, #40 in FY2023, #55 in FY2024 and not on the FY2025 list; down 1 since FY2021.
40	Puyenpa Services, LLC Top agencies HHS (Department of Health and Human Services)	$2,601,387	0.3%	Rank history: #56 in FY2021, #42 in FY2023, #97 in FY2024 and not on the FY2025 list; up 16 since FY2021.
41	Johnson Controls Security Solutions LLC 4 awardees, including Johnson Controls, Inc. and Johnson Controls Fire Protection LP Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior) DOL (Department of Labor)	$2,533,176	0.3%	Rank history: #30 in FY2021, #55 in FY2023, #53 in FY2024 and #49 in FY2025; down 11 since FY2021.
42	Huntsville Rehabilitation Foundation Top agencies Army (Department of the Army)	$2,404,904	0.3%	Rank history: #31 in FY2021, #33 in FY2023, #45 in FY2024 and #43 in FY2025; down 11 since FY2021.
43	Bruckedwards, Inc. Top agencies DOL (Department of Labor)	$2,230,149	0.2%	Rank history: #43 in FY2021, #41 in FY2023, #63 in FY2024 and #52 in FY2025; unchanged since FY2021.
44	T3W Business Solutions, Inc. Top agencies Navy (Department of the Navy)	$2,204,579	0.2%	Rank history: not on the FY2021 list, #38 in FY2023, #42 in FY2024 and #45 in FY2025; new.
45	The Chenega Corporation 2 awardees, including Chenega Global Protection, LLC and Chenega Analytic Business Solutions, LLC Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy)	$2,176,091	0.2%	Rank history: #61 in FY2021, #49 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2021.
46	Westmoreland Protection Agency, Inc. Top agencies VA (Department of Veterans Affairs)	$2,024,027	0.2%	Rank history: #28 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
47	Redcon Solutions Group LLC Top agencies VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$1,929,572	0.2%	Rank history: not on the FY2021 list, #10 in FY2023, #21 in FY2024 and #22 in FY2025; up 74 since FY2021.
48	Vertical Screen, Inc. Through Fieldprint Inc. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$1,906,545	0.2%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2021.
49	T47 International, Inc. Top agencies DISA (Defense Information Systems Agency)	$1,901,828	0.2%	Rank history: #92 in FY2021 and not on the FY2023–FY2025 lists; up 43 since FY2021.
50	International Support Group LLC Top agencies DOL (Department of Labor)	$1,785,899	0.2%	Rank history: not on the FY2021 list, #58 in FY2023, #99 in FY2024 and not on the FY2025 list; new.
51	Sanford Federal, Inc. Top agencies VA (Department of Veterans Affairs)	$1,621,352	0.2%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; up 36 since FY2021.
52	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$1,616,271	0.2%	Rank history: #55 in FY2021, #63 in FY2023, #80 in FY2024 and #68 in FY2025; up 3 since FY2021.
53	Gardaworld North America Top agencies DOS (Department of State)	$1,555,754	0.2%	Rank history: #66 in FY2021, #76 in FY2023, #85 in FY2024 and not on the FY2025 list; up 13 since FY2021.
54	Eagle Harbor, LLC Top agencies DHS (Department of Homeland Security)	$1,542,642	0.2%	Rank history: not on the FY2021 list, #95 in FY2023, #43 in FY2024 and #42 in FY2025; new.
55	Corporate Crime Control Protective Services, Inc. Top agencies DHS (Department of Homeland Security)	$1,367,638	0.1%	Rank history: #39 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
56	Systems Integration / Modeling & Simulation, Inc. Top agencies Navy (Department of the Navy)	$1,365,822	0.1%	Rank history: not on the FY2021 list, #51 in FY2023, #58 in FY2024 and #54 in FY2025; new.
57	ITA International LLC Top agencies USAF (Department of the Air Force)	$1,357,973	0.1%	Rank history: not on the FY2021 list, #14 in FY2023 and not on the FY2024–FY2025 lists; new.
58	Cherokee Nation Through Cherokee Nation Strategic Programs, L.L.C. Top agencies Treasury (Department of the Treasury)	$1,340,006	0.1%	Rank history: #69 in FY2021, #56 in FY2023, #79 in FY2024 and not on the FY2025 list; up 11 since FY2021.
59	System High Corporation Top agencies OSD (Office of the Secretary of Defense)	$1,291,085	0.1%	Rank history: #65 in FY2021, #73 in FY2023, #71 in FY2024 and #62 in FY2025; up 6 since FY2021.
60	Island Empire Community Development Through Digitalspec, LLC Top agencies ED (Department of Education)	$1,237,205	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
61	Quiet Professionals, LLC Top agencies USSOCOM (United States Special Operations Command)	$1,217,252	0.1%	Rank history: not on the FY2021 list, #89 in FY2023, #94 in FY2024 and #81 in FY2025; new.
62	Broadland Guarding Services Limited Top agencies DODEA (Department of Defense Education Activity)	$1,140,282	0.1%	Rank history: #47 in FY2021, #90 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2021.
63	Global Security Management Agency, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$1,123,977	0.1%	Rank history: #74 in FY2021, #26 in FY2023, #31 in FY2024 and #27 in FY2025; up 11 since FY2021.
64	Starside Security & Investigation Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$1,070,281	0.1%	Rank history: #62 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
65	Connexus Hub Inc Top agencies Navy (Department of the Navy)	$993,398	0.1%	Rank history: not on the FY2021 list, #60 in FY2023 and not on the FY2024–FY2025 lists; new.
66	DRS Services Inc. Top agencies VA (Department of Veterans Affairs)	$990,061	0.1%	Rank history: not on the FY2021 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2021.
67	Arttra Inc. Top agencies DISA (Defense Information Systems Agency)	$942,447	0.1%	Rank history: not on the FY2021 list, #54 in FY2023, #91 in FY2024 and not on the FY2025 list; new.
68	Tactical Solutions International Top agencies HHS (Department of Health and Human Services)	$904,970	0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
69	The Whitestone Group, Inc. Top agencies VA (Department of Veterans Affairs)	$892,232	0.1%	Rank history: #73 in FY2021, #31 in FY2023, #39 in FY2024 and #19 in FY2025; up 4 since FY2021.
70	Advantage SCI LLC Top agencies DHS (Department of Homeland Security)	$874,248	0.1%	Rank history: #82 in FY2021, #52 in FY2023, not on the FY2024 list and #48 in FY2025; up 12 since FY2021.
71	Guard Force Inc. Top agencies VA (Department of Veterans Affairs)	$870,654	0.1%	Rank history: #94 in FY2021, #84 in FY2023, #100 in FY2024 and #82 in FY2025; up 23 since FY2021.
72	Stratus Security Management Inc. Top agencies DMA (Defense Media Activity) Navy (Department of the Navy)	$859,974	0.1%	Rank history: #76 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
73	M. Holland Group, LLC Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$814,469	0.1%	Rank history: not on the FY2021 list, #86 in FY2023, #93 in FY2024 and #77 in FY2025; up 33 since FY2021.
74	Firelake Construction Inc. Top agencies Army (Department of the Army)	$811,958	0.1%	Rank history: #75 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
75	DLT Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$808,708	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
76	Cynergy Professional Systems LLC Top agencies MDA (DOD Missile Defense Agency) VA (Department of Veterans Affairs)	$804,597	0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
77	Tenax Technologies LLC Top agencies Army (Department of the Army)	$798,945	0.1%	Rank history: #57 in FY2021, #68 in FY2023, #87 in FY2024 and #72 in FY2025; down 20 since FY2021.
78	Risk and Strategic Management Corp. Top agencies USAID (US Agency for International Development)	$796,394	0.1%	Rank history: #46 in FY2021, #53 in FY2023, #75 in FY2024 and not on the FY2025 list; down 32 since FY2021.
79	Trust Consulting Services Inc. Top agencies FCC (Federal Communications Commission)	$761,796	0.1%	Rank history: #88 in FY2021, #96 in FY2023, not on the FY2024 list and #47 in FY2025; up 9 since FY2021.
80	Swanson Services LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) DOJ (Department of Justice)	$712,473	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 47 since FY2021.
81	Global Resource Solutions Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$703,788	0.1%	Rank history: #99 in FY2021, #71 in FY2023, #50 in FY2024 and #37 in FY2025; up 18 since FY2021.
82	Bnl, Inc. Top agencies ED (Department of Education)	$600,045	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 47 since FY2021.
83	Sec-Ops, Inc. Top agencies DHS (Department of Homeland Security)	$599,324	0.1%	Rank history: #41 in FY2021, #61 in FY2023, #70 in FY2024 and #58 in FY2025; down 42 since FY2021.
84	Coastal Management Solutions Inc. Top agencies Treasury (Department of the Treasury)	$594,895	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 63 since FY2021.
85	Cherokee Nation Strategic Programs, L.L.C. Top agencies Treasury (Department of the Treasury)	$588,937	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #53 in FY2025; new.
86	Bradley Technologies Inc. Top agencies Army (Department of the Army)	$586,907	0.1%	Rank history: not on the FY2021 list, #37 in FY2023, #32 in FY2024 and #32 in FY2025; new.
87	The Fields Group, LLC Top agencies FTC (Federal Trade Commission)	$585,552	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 16 since FY2021.
88	American Eagle Protective Services Corp Top agencies DHS (Department of Homeland Security) DOL (Department of Labor)	$582,100	0.1%	Rank history: #60 in FY2021 and not on the FY2023–FY2025 lists; down 28 since FY2021.
89	Bedrock Protection Agency LLC Top agencies DHS (Department of Homeland Security)	$549,480	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	W & W Protection LLC Top agencies VA (Department of Veterans Affairs)	$540,637	0.1%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
91	Liona Enterprises Inc Top agencies ED (Department of Education)	$524,612	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Mid Atlantic Security Agency, LLC Top agencies VA (Department of Veterans Affairs)	$514,529	0.1%	Rank history: #68 in FY2021 and not on the FY2023–FY2025 lists; down 24 since FY2021.
93	Always Professional Inc. Top agencies HHS (Department of Health and Human Services)	$512,957	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 35 since FY2021.
94	Fort Belknap Indian Community Through Buffalo Horse Inc. Top agencies FTC (Federal Trade Commission)	$505,727	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
95	Precise Systems, Inc. Top agencies Navy (Department of the Navy)	$500,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	X Corp Solutions Inc. Top agencies USAF (Department of the Air Force)	$499,000	0.1%	Rank history: #100 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
97	Human Capital Resources and Concepts, Inc. Top agencies CFTC (Commodity Futures Trading Commission) Navy (Department of the Navy)	$497,691	0.1%	Rank history: not on the FY2021 list, #100 in FY2023, #92 in FY2024 and #78 in FY2025; new.
98	Jlgov LLC Top agencies Army (Department of the Army)	$495,433	0.1%	Rank history: #95 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
99	Potomac Management Solutions LLC Top agencies Commerce (Department of Commerce)	$487,526	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 2 since FY2021.
100	Omniplex World Services Corporation Top agencies CSOSA (Court Services and Offender Supervision Agency)	$477,302	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 $949 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