Top 100 Contractors in PSC R410: Support – Professional: Program Evaluation/Review/Development, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) OSD (Office of the Secretary of Defense)	$43,385,889	3.7%	Rank history: #4 in FY2021, #4 in FY2022, #6 in FY2023 and #2 in FY2025; up 5 since FY2023.
2	Human Resources Research Organization (Humrro) Top agencies DHRA (Defense Human Resources Activity) Navy (Department of the Navy)	$40,586,466	3.4%	Rank history: #33 in FY2021, #7 in FY2022, #5 in FY2023 and #20 in FY2025; up 3 since FY2023.
3	Mathematica Inc. 4 awardees Top agencies HHS (Department of Health and Human Services) NSF (National Science Foundation) SSA (Social Security Administration)	$32,723,133	2.8%	Rank history: #3 in FY2021, #3 in FY2022, #7 in FY2023 and #8 in FY2025; up 4 since FY2023.
4	Tetra Tech, Inc. 4 awardees, including Management Systems International, Inc., The Kaizen Company, LLC and Tetra TECH ES, Inc. Top agencies USAID (US Agency for International Development) MCC (Millennium Challenge Corporation)	$31,612,793	2.7%	Rank history: #24 in FY2021, #31 in FY2022, #10 in FY2023 and not on the FY2025 list; up 6 since FY2023.
5	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) DOS (Department of State)	$30,043,641	2.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 322 since FY2023.
6	Sumaria Systems, LLC Top agencies USAF (Department of the Air Force)	$28,051,881	2.4%	Rank history: #10 in FY2021, #9 in FY2022, #12 in FY2023 and #12 in FY2025; up 6 since FY2023.
7	Strategic Alliance Solutions LLC Top agencies MDA (DOD Missile Defense Agency)	$27,942,974	2.4%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023 list and #6 in FY2025; returned.
8	The Mitre Corporation 2 awardees Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$26,604,875	2.2%	Rank history: #39 in FY2021, #13 in FY2022, #9 in FY2023 and #24 in FY2025; up 1 since FY2023.
9	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$24,021,923	2.0%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
10	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$23,920,544	2.0%	Rank history: #6 in FY2021, #52 in FY2022, #3 in FY2023 and not on the FY2025 list; down 7 since FY2023.
11	H.i.g. Capital Management Inc. 2 awardees, including Empower AI, Inc. and Iron Bow Technologies, LLC Top agencies HHS (Department of Health and Human Services) Smithsonian (Smithsonian Institution)	$19,533,470	1.6%	Rank history: #16 in FY2021, #11 in FY2022, #13 in FY2023 and not on the FY2025 list; up 2 since FY2023.
12	Federal Management Partners, LLC Top agencies OPM (Office of Personnel Management) NSF (National Science Foundation)	$16,494,834	1.4%	Rank history: #45 in FY2021, #61 in FY2022, #58 in FY2023 and #26 in FY2025; up 46 since FY2023.
13	National Collegiate Inventors & Innovators Alliance, Inc. Top agencies HHS (Department of Health and Human Services)	$16,202,424	1.4%	Rank history: not on the FY2021 list, #71 in FY2022, #2 in FY2023 and #7 in FY2025; down 11 since FY2023.
14	CDM Federal Programs Corporation Top agencies DHS (Department of Homeland Security)	$15,688,239	1.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
15	Social Impact Inc. Top agencies USAID (US Agency for International Development) DOS (Department of State) MCC (Millennium Challenge Corporation)	$15,662,432	1.3%	Rank history: #43 in FY2021, #48 in FY2022, #36 in FY2023 and not on the FY2025 list; up 21 since FY2023.
16	Concurrent Technologies Corp Top agencies WHS (DOD Washington Headquarters Service)	$14,766,369	1.2%	Rank history: not on the FY2021 list, #28 in FY2022, #18 in FY2023 and #10 in FY2025; up 2 since FY2023.
17	Projectxyz, Inc. Top agencies Army (Department of the Army)	$14,184,595	1.2%	Rank history: #25 in FY2021, #35 in FY2022, #42 in FY2023 and #19 in FY2025; up 25 since FY2023.
18	Suntiva LLC 2 awardees Top agencies HHS (Department of Health and Human Services)	$13,624,082	1.1%	Rank history: #21 in FY2021, #23 in FY2022, #28 in FY2023 and #91 in FY2025; up 10 since FY2023.
19	Cognosante, LLC Top agencies VA (Department of Veterans Affairs)	$13,239,224	1.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
20	Amvet Technologies LLC 2 awardees Top agencies DOE (Department of Energy)	$12,454,531	1.0%	Rank history: not on the FY2021–FY2022 lists, #35 in FY2023 and #16 in FY2025; up 15 since FY2023.
21	Eagle Integrated Services, LLC Top agencies DLA (Defense Logistics Agency)	$12,197,373	1.0%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and #25 in FY2025; down 1 since FY2023.
22	UnitedHealth Group Incorporated Through The Lewin Group, Inc. Top agencies HHS (Department of Health and Human Services)	$12,177,539	1.0%	Rank history: #48 in FY2021, #39 in FY2022, #37 in FY2023 and #4 in FY2025; up 15 since FY2023.
23	The Young Center for Immigrant Childrens Rights Top agencies HHS (Department of Health and Human Services)	$11,812,210	1.0%	Rank history: not on the FY2021 list, #50 in FY2022, #27 in FY2023 and #17 in FY2025; up 4 since FY2023.
24	Clear Vantage Point Solutions LLC Top agencies VA (Department of Veterans Affairs)	$11,220,143	0.9%	Rank history: not on the FY2021 list, #57 in FY2022, not on the FY2023 list and #21 in FY2025; returned.
25	Quality Insights, Inc. Top agencies VA (Department of Veterans Affairs)	$11,186,909	0.9%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
26	Cornell Technical Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$11,117,439	0.9%	Rank history: #12 in FY2021, #20 in FY2022, #22 in FY2023 and #15 in FY2025; down 4 since FY2023.
27	ABT Global LLC 3 awardees Top agencies DOL (Department of Labor) HHS (Department of Health and Human Services) ED (Department of Education)	$10,668,163	0.9%	Rank history: #32 in FY2021, #38 in FY2022, #16 in FY2023 and #22 in FY2025; down 11 since FY2023.
28	Progov Partners LLC Top agencies Army (Department of the Army)	$10,284,667	0.9%	Rank history: not on the FY2021 list, #33 in FY2022, #87 in FY2023 and #46 in FY2025; up 59 since FY2023.
29	Ernst & Young LLP Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$10,054,307	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
30	L3Harris Technologies, Inc. Through L3Harris Technologies Integrated Systems L.P. Top agencies USAF (Department of the Air Force)	$9,978,158	0.8%	Rank history: not on the FY2021 list, #22 in FY2022, #46 in FY2023 and not on the FY2025 list; up 16 since FY2023.
31	Sigmatech Inc. Top agencies Army (Department of the Army)	$9,958,176	0.8%	Rank history: not on the FY2021 list, #36 in FY2022, #23 in FY2023 and #18 in FY2025; down 8 since FY2023.
32	Alpha Omega Integration LLC Top agencies DHS (Department of Homeland Security)	$9,417,934	0.8%	Rank history: #11 in FY2021, #16 in FY2022, #21 in FY2023 and #39 in FY2025; down 11 since FY2023.
33	Mdrc Top agencies HHS (Department of Health and Human Services)	$9,004,920	0.8%	Rank history: #38 in FY2021, #32 in FY2022, #80 in FY2023 and #28 in FY2025; up 47 since FY2023.
34	Atg, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$9,000,000	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
35	American Institutes for Research In the Behavioral Sciences Top agencies ED (Department of Education) USAID (US Agency for International Development) DOL (Department of Labor)	$8,584,715	0.7%	Rank history: #35 in FY2021, #17 in FY2022, #34 in FY2023 and not on the FY2025 list; down 1 since FY2023.
36	Pololei Solutions, LLC Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$8,557,213	0.7%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2025; new.
37	The QED Group LLC Top agencies USAID (US Agency for International Development) DOS (Department of State)	$8,477,286	0.7%	Rank history: #64 in FY2021, #42 in FY2022, not on the FY2023 list and not on the FY2025 list; up 261 since FY2023.
38	Audacious Inquiry LLC Top agencies HHS (Department of Health and Human Services)	$8,442,602	0.7%	Rank history: #13 in FY2021, #41 in FY2022, #30 in FY2023 and not on the FY2025 list; down 8 since FY2023.
39	National Opinion Research Center Top agencies USAID (US Agency for International Development) HHS (Department of Health and Human Services) DOL (Department of Labor)	$7,993,286	0.7%	Rank history: #36 in FY2021, #14 in FY2022, #52 in FY2023 and #11 in FY2025; up 13 since FY2023.
40	Urban Emu, LLC Top agencies USDA (Department of Agriculture)	$7,477,494	0.6%	Rank history: not on the FY2021 list, #56 in FY2022, #17 in FY2023 and not on the FY2025 list; down 23 since FY2023.
41	Arlluk Technology Solutions LLC Top agencies Army (Department of the Army)	$7,012,648	0.6%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2025; new.
42	Saint George Consulting Inc. Top agencies VA (Department of Veterans Affairs)	$7,000,046	0.6%	Rank history: #54 in FY2021, #79 in FY2022, #45 in FY2023 and #29 in FY2025; up 3 since FY2023.
43	Management & Technical Services Alliance Joint Venture Top agencies Army (Department of the Army)	$6,906,900	0.6%	Rank history: #80 in FY2021, #74 in FY2022, #41 in FY2023 and #41 in FY2025; down 2 since FY2023.
44	Elder Research, Inc. Top agencies DHS (Department of Homeland Security)	$6,902,057	0.6%	Rank history: #97 in FY2021, not on the FY2022 list, #64 in FY2023 and #14 in FY2025; up 20 since FY2023.
45	Research Triangle Institute Top agencies NSF (National Science Foundation) HHS (Department of Health and Human Services)	$6,615,490	0.6%	Rank history: #42 in FY2021, #80 in FY2022, #31 in FY2023 and not on the FY2025 list; down 14 since FY2023.
46	Semanticbits LLC Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) DOT (Department of Transportation)	$6,600,492	0.6%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2025; new.
47	Westat, Inc. Top agencies HHS (Department of Health and Human Services) EEOC (Equal Employment Opportunity Commission) USDA (Department of Agriculture)	$6,342,033	0.5%	Rank history: #22 in FY2021, #10 in FY2022, #44 in FY2023 and #31 in FY2025; down 3 since FY2023.
48	Cloudburst Consulting Group, Inc. Top agencies USAID (US Agency for International Development)	$6,215,619	0.5%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and not on the FY2025 list; up 22 since FY2023.
49	International Business Initiatives LLC Top agencies USAID (US Agency for International Development)	$5,813,593	0.5%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and not on the FY2025 list; up 4 since FY2023.
50	Walter R Mcdonald & Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$5,777,664	0.5%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
51	Hite Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$5,725,742	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
52	KT Consulting, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$5,664,773	0.5%	Rank history: #31 in FY2021, #34 in FY2022, #43 in FY2023 and not on the FY2025 list; down 9 since FY2023.
53	Brunet-Garcia Advertising LLC Top agencies HHS (Department of Health and Human Services)	$5,231,639	0.4%	Rank history: #30 in FY2021, not on the FY2022 list, #59 in FY2023 and #62 in FY2025; up 6 since FY2023.
54	The Urban Institute Top agencies HHS (Department of Health and Human Services)	$5,160,192	0.4%	Rank history: #40 in FY2021, #37 in FY2022, #32 in FY2023 and not on the FY2025 list; down 22 since FY2023.
55	Cognito Systems LLC Top agencies Army (Department of the Army)	$5,025,973	0.4%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
56	A1M Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$5,000,179	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	National Academy of Sciences Top agencies SSA (Social Security Administration) DOE (Department of Energy) DOS (Department of State)	$4,719,636	0.4%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #94 in FY2025; up 12 since FY2023.
58	Novaces, LLC Top agencies Navy (Department of the Navy)	$4,610,055	0.4%	Rank history: #37 in FY2021, not on the FY2022 list, #67 in FY2023 and #37 in FY2025; up 9 since FY2023.
59	Three Lines Spare Parts Company Top agencies Army (Department of the Army)	$4,605,034	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	R3 Strategic Support Group Inc Top agencies Navy (Department of the Navy)	$4,532,861	0.4%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #40 in FY2025; up 14 since FY2023.
61	I Tech AG LLC Top agencies HUD (Department of Housing and Urban Development)	$4,459,876	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
62	Titan Alpha LLC Top agencies VA (Department of Veterans Affairs)	$4,271,961	0.4%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023 and not on the FY2025 list; down 5 since FY2023.
63	Koniag Management Solutions LLC Top agencies HHS (Department of Health and Human Services) HUD (Department of Housing and Urban Development)	$4,150,918	0.3%	Rank history: #69 in FY2021, #76 in FY2022, #78 in FY2023 and #43 in FY2025; up 15 since FY2023.
64	Blueforce, Inc. Top agencies Army (Department of the Army)	$3,961,927	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
65	N2Ia Technologies LLC Top agencies Army (Department of the Army)	$3,944,001	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 109 since FY2023.
66	Sigma Health Consulting, LLC Top agencies VA (Department of Veterans Affairs)	$3,888,515	0.3%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and not on the FY2025 list; down 18 since FY2023.
67	Environmental Incentives, Inc. Top agencies USAID (US Agency for International Development)	$3,876,017	0.3%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023 and not on the FY2025 list; down 4 since FY2023.
68	Cognosante Holdings, LLC Through Cognosante, LLC Top agencies VA (Department of Veterans Affairs)	$3,833,831	0.3%	Rank history: #19 in FY2021, #26 in FY2022, #15 in FY2023 and not on the FY2025 list; down 53 since FY2023.
69	Navanti Group LLC Top agencies USAID (US Agency for International Development) DOS (Department of State)	$3,820,535	0.3%	Rank history: #67 in FY2021, #67 in FY2022, #83 in FY2023 and not on the FY2025 list; up 14 since FY2023.
70	Index Analytics LLC Top agencies HHS (Department of Health and Human Services)	$3,789,353	0.3%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2025; new.
71	Microhealth LLC Top agencies DOS (Department of State)	$3,771,449	0.3%	Rank history: not on the FY2021 list, #62 in FY2022, not on the FY2023 list and #45 in FY2025; up 35 since FY2023.
72	Voigt Peters Associates LLC Top agencies HHS (Department of Health and Human Services)	$3,745,151	0.3%	Rank history: #70 in FY2021, #78 in FY2022, #84 in FY2023 and not on the FY2025 list; up 12 since FY2023.
73	G2S Corp Top agencies HHS (Department of Health and Human Services)	$3,657,706	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 77 since FY2023.
74	The Cumberland Group, Inc. Top agencies DSCA (Defense Security Cooperation Agency)	$3,650,383	0.3%	Rank history: not on the FY2021 list, #68 in FY2022, #86 in FY2023 and not on the FY2025 list; up 12 since FY2023.
75	Viderity Inc. Top agencies NSF (National Science Foundation)	$3,569,911	0.3%	Rank history: not on the FY2021–FY2022 lists, #75 in FY2023 and not on the FY2025 list; unchanged since FY2023.
76	Banyan Global Inc. Top agencies USAID (US Agency for International Development)	$3,500,000	0.3%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and not on the FY2025 list; down 20 since FY2023.
77	Technical Assent, LLC Top agencies VA (Department of Veterans Affairs)	$3,474,002	0.3%	Rank history: #81 in FY2021, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; up 31 since FY2023.
78	Sawdey Solution Services Inc. Top agencies USAF (Department of the Air Force)	$3,435,703	0.3%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #68 in FY2025; up 13 since FY2023.
79	Calibre Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,315,863	0.3%	Rank history: #68 in FY2021, not on the FY2022–FY2023 lists and #47 in FY2025; up 33 since FY2023.
80	Alutiiq Information Management, LLC Top agencies DOS (Department of State)	$3,300,804	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
81	Acumen Solutions, Inc. Top agencies CFPB (Consumer Financial Protection Bureau)	$3,191,822	0.3%	Rank history: #34 in FY2021, #24 in FY2022, #24 in FY2023 and not on the FY2025 list; down 57 since FY2023.
82	Credence Management Solutions Limited Liability Company Top agencies USAF (Department of the Air Force)	$3,150,127	0.3%	Rank history: #8 in FY2021, #5 in FY2022, #11 in FY2023 and #53 in FY2025; down 71 since FY2023.
83	Intelligent Health Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$3,022,536	0.3%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2025; new.
84	Cayuse Federal Services LLC Top agencies Treasury (Department of the Treasury)	$2,981,452	0.3%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; new.
85	Blake Willson Group LLC Top agencies DOI (Department of the Interior)	$2,940,137	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 52 since FY2023.
86	Fortis Native Group LLC Top agencies DOI (Department of the Interior)	$2,907,760	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Archetype I LLC Top agencies Treasury (Department of the Treasury)	$2,900,339	0.2%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2025; up 73 since FY2023.
88	Icahn School of Medicine At Mount Sinai Top agencies HHS (Department of Health and Human Services)	$2,863,950	0.2%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2025; new.
89	The Staywell Company LLC Top agencies VA (Department of Veterans Affairs)	$2,812,936	0.2%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2025; new.
90	Aptive HTG LLC Top agencies VA (Department of Veterans Affairs)	$2,791,187	0.2%	Rank history: #65 in FY2021, #100 in FY2022, not on the FY2023 list and #63 in FY2025; up 31 since FY2023.
91	Dynamis, Inc. Top agencies DHS (Department of Homeland Security)	$2,775,944	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 35 since FY2023.
92	Areeva Solutions, LLC Top agencies Treasury (Department of the Treasury)	$2,742,428	0.2%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; up 107 since FY2023.
93	New Editions, Inc. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor) DOT (Department of Transportation)	$2,724,640	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 8 since FY2023.
94	Agile Decision Sciences, LLC Top agencies DHS (Department of Homeland Security)	$2,674,889	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Nationwide It Services Inc. Top agencies HHS (Department of Health and Human Services)	$2,549,231	0.2%	Rank history: not on the FY2021 list, #53 in FY2022, #100 in FY2023 and not on the FY2025 list; up 5 since FY2023.
96	Oban Corporation Top agencies DOT (Department of Transportation)	$2,519,068	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 129 since FY2023.
97	Centuria Corporation Top agencies Navy (Department of the Navy)	$2,465,431	0.2%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
98	Technical Assistance Collaborative, Inc. Top agencies VA (Department of Veterans Affairs)	$2,447,598	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2025; up 24 since FY2023.
99	Goldbelt C6, LLC Top agencies DOS (Department of State)	$2,417,544	0.2%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
100	Global Miracle Solutions LLC Top agencies DHS (Department of Homeland Security)	$2,414,721	0.2%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2025; up 10 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 $1.19 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