Top 100 Contractors in PSC R429: Support – Professional: Emergency Response/Disaster Planning/Preparedness Support, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Life Science Logistics LLC Top agencies HHS (Department of Health and Human Services)	$38,046,036	8.9%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023, #3 in FY2024 and #12 in FY2025; up 3 since Aug 2024–Jul 2025.
2	Integrated Quality Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$30,447,687	7.1%	Rank history: #25 in FY2021, #9 in FY2022, #3 in FY2023, #11 in FY2024 and #8 in FY2025; up 6 since Aug 2024–Jul 2025.
3	Phoenix Air Group, Inc. Top agencies DOS (Department of State)	$25,806,820	6.0%	Rank history: #6 in FY2021, #7 in FY2022, #12 in FY2023, #8 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
4	Metro Logics Inc. Top agencies HHS (Department of Health and Human Services)	$22,508,662	5.3%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #9 in FY2025; up 5 since Aug 2024–Jul 2025.
5	Fluor Corporation Through Fluor Federal Services Inc. Top agencies DHS (Department of Homeland Security)	$19,665,598	4.6%	Rank history: #3 in FY2021, #34 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; down 4 since Aug 2024–Jul 2025.
6	Nana Regional Corporation, Inc. Through Akima Intra-Data, LLC Top agencies Army (Department of the Army)	$17,836,492	4.2%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #6 in FY2025; up 5 since Aug 2024–Jul 2025.
7	Tetra Tech, Inc. 4 awardees Top agencies EPA (Environmental Protection Agency)	$14,205,751	3.3%	Rank history: #12 in FY2021, #5 in FY2022, #7 in FY2023, #4 in FY2024 and #4 in FY2025; down 2 since Aug 2024–Jul 2025.
8	L2 Defense Inc. Top agencies Army (Department of the Army)	$12,998,476	3.0%	Rank history: #34 in FY2021, #25 in FY2022, #17 in FY2023, #16 in FY2024 and #11 in FY2025; up 13 since Aug 2024–Jul 2025.
9	Hexagon US Federal, Inc. Top agencies Navy (Department of the Navy)	$10,601,031	2.5%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; new, not ranked in Aug 2024–Jul 2025.
10	K2 Group, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$10,395,249	2.4%	Rank history: #38 in FY2021, #27 in FY2022, not on the FY2023 list, #22 in FY2024 and #15 in FY2025; up 9 since Aug 2024–Jul 2025.
11	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies HHS (Department of Health and Human Services) DOD (Department of Defense) PBGC (Pension Benefit Guaranty Corporation)	$7,052,242	1.6%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #20 in FY2025; up 4 since Aug 2024–Jul 2025.
12	Motorola Solutions, Inc. Top agencies Navy (Department of the Navy)	$6,989,912	1.6%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2023–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	Dawson Solutions LLC Through Laukoa Environmental Solutions, Inc. Top agencies USAF (Department of the Air Force)	$6,713,578	1.6%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #19 in FY2025; up 12 since Aug 2024–Jul 2025.
14	Covenant Park Integrated Initiatives, Inc. Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$6,438,386	1.5%	Rank history: #55 in FY2021, #31 in FY2022, #38 in FY2023, #42 in FY2024 and #16 in FY2025; up 25 since Aug 2024–Jul 2025.
15	Nistac Plus JV Top agencies DHS (Department of Homeland Security)	$5,352,256	1.2%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #13 in FY2025; down 3 since Aug 2024–Jul 2025.
16	Dewberry Engineers Inc. Top agencies DHS (Department of Homeland Security)	$5,310,007	1.2%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; up 18 since Aug 2024–Jul 2025.
17	BVG & Co Consulting LLC Top agencies DOE (Department of Energy)	$5,240,597	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18	The Mental Health Association of New York City, Inc. Top agencies VA (Department of Veterans Affairs)	$4,708,821	1.1%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and #22 in FY2025; up 9 since Aug 2024–Jul 2025.
19	Transportation Management Services Inc. Top agencies DHS (Department of Homeland Security)	$4,008,216	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20	Serco Inc Top agencies DHS (Department of Homeland Security)	$3,905,795	0.9%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023, #5 in FY2024 and #5 in FY2025; down 6 since Aug 2024–Jul 2025.
21	The CNA Corporation Top agencies DHS (Department of Homeland Security)	$3,842,844	0.9%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #25 in FY2025; up 10 since Aug 2024–Jul 2025.
22	Niyamit Inc. Top agencies DHS (Department of Homeland Security)	$3,674,730	0.9%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Lincoln Environmental Services, Inc. Top agencies USAF (Department of the Air Force)	$3,568,452	0.8%	Rank history: #70 in FY2021, #61 in FY2022, #94 in FY2023, #57 in FY2024 and #44 in FY2025; up 25 since Aug 2024–Jul 2025.
24	Harkcon Inc. Top agencies SSA (Social Security Administration) DHS (Department of Homeland Security)	$3,340,510	0.8%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 25 since Aug 2024–Jul 2025.
25	TM3 Solutions Inc. Top agencies DHS (Department of Homeland Security)	$3,164,773	0.7%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #21 in FY2025; down 1 since Aug 2024–Jul 2025.
26	Gonzales Consulting Services Inc Top agencies SSA (Social Security Administration)	$2,996,619	0.7%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Community Health Systems Inc. Through ROH Inc. Top agencies Navy (Department of the Navy)	$2,893,148	0.7%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #36 in FY2024 and #27 in FY2025; up 6 since Aug 2024–Jul 2025.
28	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$2,880,804	0.7%	Rank history: #41 in FY2021, #32 in FY2022, #30 in FY2023, #33 in FY2024 and #28 in FY2025; up 7 since Aug 2024–Jul 2025.
29	Leidos Holdings, Inc. Through Dynetics, Inc. Top agencies Army (Department of the Army)	$2,782,489	0.6%	Rank history: #44 in FY2021, #36 in FY2022, #31 in FY2023, not on the FY2024 list and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DHS (Department of Homeland Security)	$2,391,010	0.6%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, #23 in FY2024 and #29 in FY2025; down 4 since Aug 2024–Jul 2025.
31	Decisionpoint Corporation Top agencies HHS (Department of Health and Human Services)	$1,749,946	0.4%	Rank history: not on the FY2021 list, #57 in FY2022, #55 in FY2023, #46 in FY2024 and #32 in FY2025; up 11 since Aug 2024–Jul 2025.
32	Dssg LLC Top agencies Army (Department of the Army)	$1,685,508	0.4%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #38 in FY2025; up 15 since Aug 2024–Jul 2025.
33	Sc-B Consulting Incorporated Top agencies USAF (Department of the Air Force)	$1,091,836	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Thinktek LLC Top agencies USAF (Department of the Air Force)	$996,374	0.2%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	Obxtek Inc. Top agencies DOS (Department of State)	$950,000	0.2%	Rank history: #36 in FY2021, #20 in FY2022, #20 in FY2023, #15 in FY2024 and #17 in FY2025; down 12 since Aug 2024–Jul 2025.
36	Echelon Services, LLC Top agencies DOT (Department of Transportation)	$944,922	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023, #54 in FY2024 and #47 in FY2025; up 17 since Aug 2024–Jul 2025.
37	Tribalco LLC Top agencies USAF (Department of the Air Force)	$856,822	0.2%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023, #66 in FY2024 and #40 in FY2025; up 6 since Aug 2024–Jul 2025.
38	Forts Logistics, LLC Top agencies HHS (Department of Health and Human Services)	$848,200	0.2%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Kpmg LLP Top agencies HUD (Department of Housing and Urban Development)	$822,155	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 12 since Aug 2024–Jul 2025.
40	Consolidated Transportation Services Inc. Top agencies HHS (Department of Health and Human Services)	$703,708	0.2%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #46 in FY2025; up 10 since Aug 2024–Jul 2025.
41	Alertus Technologies LLC Top agencies VA (Department of Veterans Affairs)	$699,361	0.2%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	Business Development Associates, LLC Top agencies HHS (Department of Health and Human Services)	$629,292	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #76 in FY2023, #77 in FY2024 and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Onesourcepcs LLC Top agencies DHA (Defense Health Agency)	$574,185	0.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #41 in FY2025; up 2 since Aug 2024–Jul 2025.
44	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies DHS (Department of Homeland Security)	$547,870	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list, #79 in FY2024 and #49 in FY2025; up 21 since Aug 2024–Jul 2025.
45	Syntelligent Analytic Solutions LLC Top agencies HHS (Department of Health and Human Services)	$475,500	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #50 in FY2025; up 13 since Aug 2024–Jul 2025.
46	Tier TECH International, Inc. Top agencies SSA (Social Security Administration)	$433,505	0.1%	Rank history: #61 in FY2021, #47 in FY2022, #40 in FY2023, #45 in FY2024 and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Accelerated Business Strategies LLC Top agencies WHS (DOD Washington Headquarters Service)	$383,144	0.1%	Rank history: not on the FY2021–FY2023 lists, #69 in FY2024 and #53 in FY2025; up 9 since Aug 2024–Jul 2025.
48	City of Loma Linda Top agencies VA (Department of Veterans Affairs)	$350,730	0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023, #76 in FY2024 and #56 in FY2025; up 11 since Aug 2024–Jul 2025.
49	Nuka Research & Planning Group LLC Top agencies DOI (Department of the Interior)	$317,144	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
50	MRIGLOBAL Top agencies HHS (Department of Health and Human Services)	$299,593	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	Launchtech, LLC Top agencies DHA (Defense Health Agency)	$264,857	0.1%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #43 in FY2025; down 5 since Aug 2024–Jul 2025.
52	Splut Inc. Top agencies Army (Department of the Army)	$185,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	Aldevra LLC Top agencies USAF (Department of the Air Force)	$162,326	<0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #84 in FY2024 and #71 in FY2025; up 23 since Aug 2024–Jul 2025.
54	County of Escambia Top agencies DOI (Department of the Interior)	$151,473	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, #98 in FY2024 and #72 in FY2025; up 21 since Aug 2024–Jul 2025.
55	Kinetic Concepts LLC Top agencies Army (Department of the Army)	$144,259	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; up 13 since Aug 2024–Jul 2025.
56	Rivet Operations Company LLC Top agencies USAF (Department of the Air Force)	$142,779	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Human Domain Solutions, LLC Top agencies Army (Department of the Army)	$137,807	<0.1%	Rank history: #94 in FY2021, #88 in FY2022, #75 in FY2023, #70 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
58	Highway Patrol, California Top agencies USDA (Department of Agriculture)	$123,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59	Safety Resources Company of Ohio Top agencies VA (Department of Veterans Affairs)	$109,230	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Rescue Connect Limited Top agencies DOS (Department of State)	$99,946	<0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	Strohman Enterprise Inc Top agencies DOI (Department of the Interior)	$95,242	<0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	County of San Diego Top agencies VA (Department of Veterans Affairs)	$91,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
63	Crisis Response Co LLC Top agencies DOS (Department of State)	$85,677	<0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, not on the FY2024 list and #78 in FY2025; up 17 since Aug 2024–Jul 2025.
64	Safety Education Specialists LLC Top agencies HHS (Department of Health and Human Services)	$68,935	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	DWG Plumbing and Excavating LLC Top agencies VA (Department of Veterans Affairs)	$68,750	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Patriot Environmental Services, Inc. Top agencies USDA (Department of Agriculture)	$62,754	<0.1%	Rank history: not on the FY2021 list, #59 in FY2022, #50 in FY2023, #37 in FY2024 and #26 in FY2025; down 36 since Aug 2024–Jul 2025.
67	Joel A Mercado Diaz Top agencies USDA (Department of Agriculture)	$60,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Fireside Partners Inc. Top agencies DOJ (Department of Justice)	$60,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 30 since Aug 2024–Jul 2025.
69	County of Clackamas Top agencies USDA (Department of Agriculture)	$59,723	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
70	Advanced Computer Concepts, Inc. Top agencies Treasury (Department of the Treasury)	$58,065	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Mississippi Gulf Coast Young Mens Christian Association Inc. Top agencies DOI (Department of the Interior)	$55,883	<0.1%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 10 since Aug 2024–Jul 2025.
72	Las Vegas Metropolitan Police Department Top agencies DOI (Department of the Interior)	$49,061	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #92 in FY2023, #93 in FY2024 and #82 in FY2025; up 15 since Aug 2024–Jul 2025.
73	Clear Cloud Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$46,923	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	IEM International, Inc. Top agencies DHS (Department of Homeland Security)	$46,278	<0.1%	Rank history: #49 in FY2021, #44 in FY2022, not on the FY2023–FY2024 lists and #67 in FY2025; down 1 since Aug 2024–Jul 2025.
75	City of Roswell, Georgia Top agencies DOI (Department of the Interior)	$42,647	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
76	Nashoba Valley Regional Dispatch District Top agencies Army (Department of the Army)	$40,419	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 10 since Aug 2024–Jul 2025.
77	Grey Wall Software, LLC Through Veoci Inc. Top agencies VA (Department of Veterans Affairs)	$40,170	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 42 since Aug 2024–Jul 2025.
78	Edmonson County Fiscal Court Top agencies DOI (Department of the Interior)	$35,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 22 since Aug 2024–Jul 2025.
79	RNR Rescue, LLC Top agencies Army (Department of the Army)	$33,330	<0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80	County of Pershing Top agencies DOI (Department of the Interior)	$30,808	<0.1%	Rank history: not on the FY2021–FY2023 lists, #65 in FY2024 and not on the FY2025 list; down 14 since Aug 2024–Jul 2025.
81	Department of Public Safety State Utah Top agencies DOI (Department of the Interior)	$23,920	<0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 15 since Aug 2024–Jul 2025.
82	County of Mesa Top agencies DOI (Department of the Interior)	$20,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
83	El Paso County Top agencies USAF (Department of the Air Force)	$20,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 18 since Aug 2024–Jul 2025.
84	Duke Restoration LLC Top agencies Army (Department of the Army)	$19,978	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Lumen Technologies, Inc. Through Centurytel of Alabama, LLC Top agencies Army (Department of the Army)	$17,571	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 21 since Aug 2024–Jul 2025.
86	Wyoming Department of Transportation Top agencies USDA (Department of Agriculture)	$16,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 32 since Aug 2024–Jul 2025.
87	Trident Environmental Group, LLC Top agencies USDA (Department of Agriculture)	$15,881	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023, #89 in FY2024 and #39 in FY2025; down 43 since Aug 2024–Jul 2025.
88	Managed Emergency Surge for Healthcare Inc. Top agencies VA (Department of Veterans Affairs)	$15,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 5 since Aug 2024–Jul 2025.
89	Deschutes County Through Deschutes County 9-1-1 Top agencies USDA (Department of Agriculture)	$13,312	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	Servicemaster Clean / Restore SPE LLC Top agencies Army (Department of the Army)	$12,939	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	City of Prineville 2 awardees Top agencies USDA (Department of Agriculture)	$12,555	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 22 since Aug 2024–Jul 2025.
92	Ers Incorporated Top agencies NARA (National Archives and Records Administration)	$12,303	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Town of Chincoteague Top agencies DOI (Department of the Interior)	$11,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	County of NEZ Perce Top agencies Army (Department of the Army)	$11,145	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 20 since Aug 2024–Jul 2025.
95	County of Fayette Top agencies DOI (Department of the Interior)	$9,900	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 7 since Aug 2024–Jul 2025.
96	Scdatacom LLC Top agencies VA (Department of Veterans Affairs)	$9,490	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 24 since Aug 2024–Jul 2025.
97	Axcend, Inc. Top agencies Navy (Department of the Navy)	$9,125	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 19 since Aug 2024–Jul 2025.
98	Colorado Department of Public Safety Top agencies USDA (Department of Agriculture)	$8,512	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 24 since Aug 2024–Jul 2025.
99	Ottawa County E911 Governing Authority Top agencies DOI (Department of the Interior)	$8,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Grant County Emergency Communications Agency Top agencies USDA (Department of Agriculture)	$5,700	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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 $428 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers