Top 100 Contractors in NAICS 541612: Human Resources Consulting Services, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	360 Patriot Enterprises LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$96,648,545	8.6%	Rank history: #9 in FY2021, #1 in FY2022, #2 in FY2023 and #1 in FY2025; up 1 since FY2023.
2	Strategic Resources, Incorporated Top agencies Army (Department of the Army)	$95,468,654	8.5%	Rank history: #16 in FY2021, #12 in FY2022, #15 in FY2023 and #3 in FY2025; up 13 since FY2023.
3	Management Analysis Technologies (Mat), Incorporated Top agencies Army (Department of the Army)	$75,156,300	6.7%	Rank history: #6 in FY2021, #7 in FY2022, #5 in FY2023 and #4 in FY2025; up 2 since FY2023.
4	Serco Inc Top agencies Army (Department of the Army) DOL (Department of Labor)	$70,019,161	6.2%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023 and #2 in FY2025; up 6 since FY2023.
5	Magellan Federal Inc. Top agencies Army (Department of the Army)	$58,690,280	5.2%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; new.
6	Deloitte Through Deloitte Consulting LLP Top agencies OPM (Office of Personnel Management) DHS (Department of Homeland Security) USAID (US Agency for International Development)	$54,530,656	4.8%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
7	Gap Solutions, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$48,944,957	4.3%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2025; new.
8	It Concepts, Inc. Top agencies USAID (US Agency for International Development) USDA (Department of Agriculture) Commerce (Department of Commerce)	$30,213,334	2.7%	Rank history: #91 in FY2021, #50 in FY2022, #48 in FY2023 and #6 in FY2025; up 40 since FY2023.
9	Your Recruiting Company, Inc. Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOJ (Department of Justice)	$27,472,815	2.4%	Rank history: #57 in FY2021, #32 in FY2022, #13 in FY2023 and #28 in FY2025; up 4 since FY2023.
10	Calibre Systems Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$26,432,054	2.3%	Rank history: #8 in FY2021, #10 in FY2022, #9 in FY2023 and #13 in FY2025; down 1 since FY2023.
11	Dynamic Systems Technology, Inc. 2 awardees Top agencies Army (Department of the Army)	$25,997,336	2.3%	Rank history: #12 in FY2021, #15 in FY2022, #14 in FY2023 and #27 in FY2025; up 3 since FY2023.
12	Personnel Decisions Research Institutes, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) DOJ (Department of Justice)	$24,191,926	2.1%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2025; new.
13	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DOI (Department of the Interior) DOE (Department of Energy) WHS (DOD Washington Headquarters Service)	$21,794,658	1.9%	Rank history: #17 in FY2021, not on the FY2022 list, #34 in FY2023 and #7 in FY2025; up 21 since FY2023.
14	Golden Key Group LLC Top agencies Commerce (Department of Commerce) DOS (Department of State) DHS (Department of Homeland Security)	$19,137,888	1.7%	Rank history: #19 in FY2021, #16 in FY2022, #18 in FY2023 and #12 in FY2025; up 4 since FY2023.
15	Acuity International LLC Top agencies DHS (Department of Homeland Security)	$18,586,455	1.6%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023 and #14 in FY2025; up 27 since FY2023.
16	Rividium Inc. 2 awardees Top agencies EPA (Environmental Protection Agency) NSF (National Science Foundation) Commerce (Department of Commerce)	$17,517,941	1.6%	Rank history: #13 in FY2021, #21 in FY2022, #20 in FY2023 and #29 in FY2025; up 4 since FY2023.
17	Strategy Consulting Team, LLC Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$16,644,127	1.5%	Rank history: #59 in FY2021, #22 in FY2022, #23 in FY2023 and #17 in FY2025; up 6 since FY2023.
18	HR Services Solutions, LLC Top agencies Army (Department of the Army)	$16,347,869	1.4%	Rank history: #20 in FY2021, #24 in FY2022, #31 in FY2023 and #20 in FY2025; up 13 since FY2023.
19	Knowledgebank, Inc. Top agencies DHS (Department of Homeland Security) OPM (Office of Personnel Management)	$16,250,180	1.4%	Rank history: #63 in FY2021, #39 in FY2022, #21 in FY2023 and #15 in FY2025; up 2 since FY2023.
20	Accenture Federal Services LLC Top agencies OPM (Office of Personnel Management)	$15,301,695	1.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Oak Ridge Associated Universities, Incorporated Top agencies NASA (National Aeronautics and Space Administration)	$12,480,607	1.1%	Rank history: #33 in FY2021, #17 in FY2022, #16 in FY2023 and #11 in FY2025; down 5 since FY2023.
22	Canvas II, LLC Top agencies Army (Department of the Army)	$12,155,056	1.1%	Rank history: #34 in FY2021, #38 in FY2022, #27 in FY2023 and #26 in FY2025; up 5 since FY2023.
23	Dynamis, Inc. Top agencies DHS (Department of Homeland Security) OPM (Office of Personnel Management)	$11,594,330	1.0%	Rank history: #27 in FY2021, #25 in FY2022, #25 in FY2023 and #16 in FY2025; up 2 since FY2023.
24	R3 Government Solutions, LLC Top agencies DHS (Department of Homeland Security) DCSA (Defense Counterintelligence and Security Agency) Treasury (Department of the Treasury)	$11,125,235	1.0%	Rank history: #21 in FY2021, #20 in FY2022, #22 in FY2023 and #25 in FY2025; down 2 since FY2023.
25	Govstrive LLC Top agencies USDA (Department of Agriculture) HHS (Department of Health and Human Services)	$10,050,990	0.9%	Rank history: #10 in FY2021, #6 in FY2022, #6 in FY2023 and #59 in FY2025; down 19 since FY2023.
26	Goldbelt Incorporated Through Goldbelt Glacier Health Services, LLC Top agencies Army (Department of the Army)	$9,913,225	0.9%	Rank history: #18 in FY2021, #31 in FY2022, #26 in FY2023 and #9 in FY2025; unchanged since FY2023.
27	Economic Systems Inc. Top agencies DOL (Department of Labor) DHS (Department of Homeland Security) GSA (General Services Administration)	$9,686,460	0.9%	Rank history: #36 in FY2021, #36 in FY2022, #35 in FY2023 and #54 in FY2025; up 8 since FY2023.
28	Ctrmg-Gapsi JV II, LLC Top agencies Army (Department of the Army)	$9,562,692	0.8%	Rank history: #22 in FY2021, #67 in FY2022, #30 in FY2023 and not on the FY2025 list; up 2 since FY2023.
29	Eagle Hill Consulting LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$9,504,187	0.8%	Rank history: #43 in FY2021, #49 in FY2022, #32 in FY2023 and #31 in FY2025; up 3 since FY2023.
30	Job Performance Systems, Inc. Top agencies Treasury (Department of the Treasury)	$8,964,307	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
31	Gemini Tech Services LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$8,796,641	0.8%	Rank history: #47 in FY2021, #23 in FY2022, #28 in FY2023 and #41 in FY2025; down 3 since FY2023.
32	Potawatomi Training LLC Top agencies DHS (Department of Homeland Security)	$8,161,091	0.7%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
33	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$7,439,332	0.7%	Rank history: #30 in FY2021, #33 in FY2022, #36 in FY2023 and #19 in FY2025; up 3 since FY2023.
34	Bryce Solutions, LLC Top agencies NASA (National Aeronautics and Space Administration)	$7,184,802	0.6%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #43 in FY2025; up 4 since FY2023.
35	Linkvisum Consulting Group, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$6,694,632	0.6%	Rank history: #24 in FY2021, #26 in FY2022, #29 in FY2023 and #48 in FY2025; down 6 since FY2023.
36	Avantgarde LLC Top agencies Commerce (Department of Commerce) Navy (Department of the Navy) ED (Department of Education)	$6,247,970	0.6%	Rank history: #28 in FY2021, #35 in FY2022, #39 in FY2023 and #32 in FY2025; up 3 since FY2023.
37	Parker Tide LLC Top agencies Treasury (Department of the Treasury)	$5,357,278	0.5%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and not on the FY2025 list; down 25 since FY2023.
38	ARC Aspicio LLC Top agencies DHS (Department of Homeland Security)	$4,755,483	0.4%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #38 in FY2025; up 6 since FY2023.
39	AE Strategies LLC Top agencies DHRA (Defense Human Resources Activity) DOJ (Department of Justice)	$4,641,847	0.4%	Rank history: #71 in FY2021, #56 in FY2022, #51 in FY2023 and #58 in FY2025; up 12 since FY2023.
40	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services)	$4,327,875	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
41	Changeis, Inc. Top agencies DHS (Department of Homeland Security)	$4,077,835	0.4%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #57 in FY2025; up 28 since FY2023.
42	Lsinc Corporation Top agencies MDA (DOD Missile Defense Agency)	$3,682,396	0.3%	Rank history: #31 in FY2021, #41 in FY2022, #37 in FY2023 and not on the FY2025 list; down 5 since FY2023.
43	Business Management Associates Inc. Top agencies DOE (Department of Energy) DOT (Department of Transportation) ED (Department of Education)	$3,650,452	0.3%	Rank history: #52 in FY2021, #42 in FY2022, #33 in FY2023 and #51 in FY2025; down 10 since FY2023.
44	Spatial Front Inc Top agencies Army (Department of the Army)	$3,630,864	0.3%	Rank history: not on the FY2021–FY2023 lists and #33 in FY2025; new.
45	C Evans Consulting LLC Top agencies Army (Department of the Army) DOT (Department of Transportation) DOJ (Department of Justice)	$3,611,338	0.3%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 68 since FY2023.
46	Oban Corporation Top agencies DOT (Department of Transportation) OPM (Office of Personnel Management)	$3,439,112	0.3%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and not on the FY2025 list; up 28 since FY2023.
47	Sylger Corporation Top agencies HHS (Department of Health and Human Services)	$3,236,828	0.3%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
48	Echo Five Group, LLC Top agencies Navy (Department of the Navy)	$3,233,030	0.3%	Rank history: #53 in FY2021, not on the FY2022–FY2023 lists and #49 in FY2025; returned.
49	Hyperion Biotechnology, Inc. Top agencies Army (Department of the Army)	$3,103,610	0.3%	Rank history: #95 in FY2021, not on the FY2022–FY2023 lists and #76 in FY2025; returned.
50	Cape Fox Facilities Services, LLC Top agencies USAID (US Agency for International Development)	$3,072,718	0.3%	Rank history: #32 in FY2021, #19 in FY2022, #17 in FY2023 and not on the FY2025 list; down 33 since FY2023.
51	Milliman, Inc. 2 awardees Top agencies PBGC (Pension Benefit Guaranty Corporation)	$2,975,929	0.3%	Rank history: #48 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
52	Aeio LLC Through R3 Government Solutions, LLC Top agencies DHS (Department of Homeland Security)	$2,899,834	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	The Millennium Group International, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DOT (Department of Transportation)	$2,811,330	0.2%	Rank history: #92 in FY2021, not on the FY2022 list, #85 in FY2023 and #77 in FY2025; up 32 since FY2023.
54	Rumik Consultancy LLC Top agencies USDA (Department of Agriculture)	$2,732,256	0.2%	Rank history: #72 in FY2021, #75 in FY2022, #65 in FY2023 and #80 in FY2025; up 11 since FY2023.
55	Guardian Defense Group, Inc. Top agencies Army (Department of the Army)	$2,649,197	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #53 in FY2025; up 4 since FY2023.
56	The Ar Group, LLC Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$2,547,823	0.2%	Rank history: #62 in FY2021, #60 in FY2022, #57 in FY2023 and not on the FY2025 list; up 1 since FY2023.
57	Kiliuda Consulting Top agencies Navy (Department of the Navy)	$2,538,981	0.2%	Rank history: not on the FY2021 list, #76 in FY2022, #55 in FY2023 and not on the FY2025 list; down 2 since FY2023.
58	C2 Technologies, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$2,270,799	0.2%	Rank history: #44 in FY2021, #46 in FY2022, #47 in FY2023 and not on the FY2025 list; down 11 since FY2023.
59	Federal Management Partners, LLC Top agencies OPM (Office of Personnel Management) CFPB (Consumer Financial Protection Bureau)	$2,267,067	0.2%	Rank history: #39 in FY2021, #40 in FY2022, #40 in FY2023 and not on the FY2025 list; down 19 since FY2023.
60	Bolton Partners D.c., Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$2,104,764	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
61	Jasint Consulting and Technologies, LLC Top agencies WHS (DOD Washington Headquarters Service) DOS (Department of State)	$1,939,039	0.2%	Rank history: #89 in FY2021, #87 in FY2022, not on the FY2023 list and #40 in FY2025; up 46 since FY2023.
62	Tundra Federal LLC Top agencies Army (Department of the Army)	$1,871,237	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and not on the FY2025 list; up 6 since FY2023.
63	Saliense Consulting LLC Top agencies Army (Department of the Army)	$1,843,999	0.2%	Rank history: not on the FY2021 list, #66 in FY2022, #70 in FY2023 and #61 in FY2025; up 7 since FY2023.
64	A P Ventures, LLC Top agencies DHS (Department of Homeland Security)	$1,843,834	0.2%	Rank history: #74 in FY2021, #48 in FY2022, #52 in FY2023 and #45 in FY2025; down 12 since FY2023.
65	Living Invigorating Valuable Experiences, LLC (Live) Top agencies DOJ (Department of Justice)	$1,805,960	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and #79 in FY2025; up 21 since FY2023.
66	Lindholm & Associates, Inc. Top agencies DOS (Department of State) Treasury (Department of the Treasury) SSA (Social Security Administration)	$1,731,932	0.2%	Rank history: #38 in FY2021, #52 in FY2022, #45 in FY2023 and #44 in FY2025; down 21 since FY2023.
67	Compsych Employee Assistance Programs, Inc. Top agencies Treasury (Department of the Treasury)	$1,719,981	0.2%	Rank history: #66 in FY2021, #71 in FY2022, #71 in FY2023 and #56 in FY2025; up 4 since FY2023.
68	Chirality Capital Consulting, LLC Top agencies DHRA (Defense Human Resources Activity) DTRA (Defense Threat Reduction Agency)	$1,685,918	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 35 since FY2023.
69	Contracting Resources Group Inc Top agencies Army (Department of the Army)	$1,621,814	0.1%	Rank history: #42 in FY2021, #65 in FY2022, #64 in FY2023 and #78 in FY2025; down 5 since FY2023.
70	Grey Street Consulting, LLC Top agencies CFTC (Commodity Futures Trading Commission)	$1,483,933	0.1%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023 and #69 in FY2025; up 9 since FY2023.
71	Performance Excellence Partners LLC Top agencies DHS (Department of Homeland Security)	$1,471,253	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	PTG International, Inc. Top agencies DOT (Department of Transportation)	$1,438,845	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	BFG Enterprises, LLC Top agencies Army (Department of the Army)	$1,383,394	0.1%	Rank history: #94 in FY2021, #78 in FY2022, #80 in FY2023 and #68 in FY2025; up 7 since FY2023.
74	Seneca Federal Health LLC Top agencies HHS (Department of Health and Human Services)	$1,351,313	0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #93 in FY2025; down 18 since FY2023.
75	The Parnin Group, LLC Top agencies Commerce (Department of Commerce)	$1,244,460	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Workforce Innovations JV Top agencies Army (Department of the Army)	$1,208,279	0.1%	Rank history: not on the FY2021–FY2023 lists and #70 in FY2025; new.
77	AON Consulting, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$1,202,036	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2025; new.
78	Insignia Federal Group, LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$1,181,264	0.1%	Rank history: not on the FY2021 list, #100 in FY2022, #84 in FY2023 and #83 in FY2025; up 6 since FY2023.
79	RJ It Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$1,180,542	0.1%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; new.
80	Kadiak LLC Top agencies DHS (Department of Homeland Security)	$1,169,859	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Bolton Partners, Inc. Through Bolton Partners D.c., Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$1,166,550	0.1%	Rank history: #46 in FY2021, #44 in FY2022, #43 in FY2023 and not on the FY2025 list; down 38 since FY2023.
82	Bnl, Inc. Top agencies ED (Department of Education)	$1,147,363	0.1%	Rank history: not on the FY2021 list, #73 in FY2022, not on the FY2023 list and #86 in FY2025; returned.
83	Collaborent LLC Top agencies DOI (Department of the Interior)	$1,104,578	0.1%	Rank history: #67 in FY2021, #72 in FY2022, #67 in FY2023 and not on the FY2025 list; down 16 since FY2023.
84	Buck Global LLC Top agencies PBGC (Pension Benefit Guaranty Corporation)	$1,020,985	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
85	Joseph Swerdzewski and Associates, LLC Top agencies DOI (Department of the Interior) DOT (Department of Transportation) VA (Department of Veterans Affairs)	$995,749	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 43 since FY2023.
86	B&B Solutions US LLC Top agencies DOT (Department of Transportation) USDA (Department of Agriculture)	$938,616	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Wheelhouse Group Inc. Top agencies Commerce (Department of Commerce)	$921,347	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	Birches Group, LLC Top agencies DOS (Department of State)	$816,042	0.1%	Rank history: #99 in FY2021, not on the FY2022–FY2023 lists and #94 in FY2025; up 28 since FY2023.
89	Gartner, Inc. 3 awardees, including SHL US LLC Top agencies DOT (Department of Transportation)	$780,801	0.1%	Rank history: #35 in FY2021, #30 in FY2022, #24 in FY2023 and not on the FY2025 list; down 65 since FY2023.
90	Cherokee Nation Federal Consulting, L.L.C. Top agencies DOT (Department of Transportation)	$773,094	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
91	Hispanic Association of Colleges & Universities Top agencies Treasury (Department of the Treasury) SEC (Securities and Exchange Commission) HHS (Department of Health and Human Services)	$747,892	0.1%	Rank history: #56 in FY2021, #77 in FY2022, #81 in FY2023 and not on the FY2025 list; down 10 since FY2023.
92	Ajanta Consulting LLC Top agencies USAF (Department of the Air Force)	$723,654	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2025 list; down 1 since FY2023.
93	Kizano Corp. Top agencies DOJ (Department of Justice)	$722,359	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Reveal Global Consulting LLC Top agencies Commerce (Department of Commerce)	$721,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Rouse Consulting, LLC Top agencies Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$685,011	0.1%	Rank history: #82 in FY2021, #95 in FY2022, #92 in FY2023 and #74 in FY2025; down 3 since FY2023.
96	Assessment Technologies Group, Inc. Top agencies DOJ (Department of Justice)	$668,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; up 29 since FY2023.
97	Gritter - Francona, Inc. Top agencies Army (Department of the Army)	$636,746	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 46 since FY2023.
98	Arservices, Limited Top agencies Navy (Department of the Navy)	$632,405	0.1%	Rank history: #97 in FY2021, not on the FY2022–FY2023 lists and #88 in FY2025; up 14 since FY2023.
99	Red River Science & Technology, LLC Top agencies USAF (Department of the Air Force)	$620,448	0.1%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2025; new.
100	Fors Marsh Group LLC Top agencies DHS (Department of Homeland Security)	$619,976	0.1%	Rank history: #41 in FY2021, #84 in FY2022, #61 in FY2023 and not on the FY2025 list; down 39 since FY2023.

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 $1.13 billion 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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