Top 100 Contractors in PSC Q999: Other Medical Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Triwest Healthcare Alliance Corp Top agencies VA (Department of Veterans Affairs)	$3,081,764,460	53.1%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #3 in FY2025; unchanged since FY2020.
2	American Medical Response Inc. 4 awardees, including American Medical Response Mid-Atlantic, Inc. and American Medical Response of Colorado, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) DOJ (Department of Justice)	$358,672,143	6.2%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
3	Davita Inc. 2 awardees Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$280,584,481	4.8%	Rank history: #3 in FY2022, #3 in FY2023, not on the FY2024 list and #2 in FY2025; down 1 since FY2020.
4	Fresenius USA Inc. 3 awardees, including Fresenius Medical Care Holdings Inc., Bio-Medical Applications of Louisiana, LLC and Bio-Medical Applications of Minnesota, Inc. Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$275,538,581	4.7%	Rank history: #2 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
5	UnitedHealth Group Incorporated Through Optumserve Health Services, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$167,449,390	2.9%	Rank history: #4 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
6	Heritage Health Solutions, Inc. Top agencies DOJ (Department of Justice)	$101,175,256	1.7%	Rank history: not on the FY2022 list, #5 in FY2023, not on the FY2024 list and #5 in FY2025; up 1 since FY2020.
7	Kbr, Inc. Through KBR Wyle Services, LLC Top agencies USSOCOM (United States Special Operations Command)	$93,702,420	1.6%	Rank history: #6 in FY2022, #4 in FY2023, #10 in FY2024 and not on the FY2025 list; down 1 since FY2020.
8	Wisconsin Physicians Service Insurance Corp. Top agencies DHA (Defense Health Agency)	$72,167,837	1.2%	Rank history: #10 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
9	Loyal Source Government Services LLC 2 awardees Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$70,645,695	1.2%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
10	Naphcare LLC Top agencies DOJ (Department of Justice)	$64,440,757	1.1%	Rank history: #7 in FY2022, #7 in FY2023, #4 in FY2024 and #6 in FY2025; down 2 since FY2020.
11	Wellpath LLC Top agencies DOJ (Department of Justice)	$38,780,968	0.7%	Rank history: #13 in FY2022, #13 in FY2023, #6 in FY2024 and #11 in FY2025; up 2 since FY2020.
12	CHS Middle East LLC 2 awardees, including Acuity-Chs, LLC and Acuity - CHS Middle East, LLC Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$38,262,628	0.7%	Rank history: #8 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
13	Loma Linda University Top agencies VA (Department of Veterans Affairs)	$27,750,406	0.5%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
14	Dialysis Clinic, Inc. Top agencies VA (Department of Veterans Affairs)	$27,582,372	0.5%	Rank history: #12 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
15	Tribal Health, LLC Top agencies HHS (Department of Health and Human Services)	$25,058,503	0.4%	Rank history: #11 in FY2022, #12 in FY2023, #5 in FY2024 and #21 in FY2025; unchanged since FY2020.
16	US Renal Care Inc. 2 awardees, including Dialysis Newco, LLC Top agencies VA (Department of Veterans Affairs)	$22,076,645	0.4%	Rank history: #18 in FY2022, #15 in FY2023, not on the FY2024 list and #9 in FY2025; down 2 since FY2020.
17	STG International, Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$21,799,884	0.4%	Rank history: #17 in FY2022, #19 in FY2023, #14 in FY2024 and #19 in FY2025; up 4 since FY2020.
18	American Renal Associates LLC Top agencies VA (Department of Veterans Affairs)	$21,589,756	0.4%	Rank history: not on the FY2022–FY2024 lists and #8 in FY2025; new, not ranked in FY2020.
19	Team Health Inc. Through Spectrum Healthcare Resources, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$17,946,765	0.3%	Rank history: #35 in FY2022, #32 in FY2023, #50 in FY2024 and not on the FY2025 list; up 1 since FY2020.
20	Spectrum Healthcare Resources Incorporated Top agencies HHS (Department of Health and Human Services)	$15,223,361	0.3%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; down 2 since FY2020.
21	Integrated Medical Solutions, LLC Top agencies DOJ (Department of Justice)	$14,908,191	0.3%	Rank history: #27 in FY2022, #25 in FY2023, #33 in FY2024 and #27 in FY2025; up 6 since FY2020.
22	Distinctive Health Spectrum Care JV LLC Top agencies USAF (Department of the Air Force)	$13,548,120	0.2%	Rank history: #84 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2020.
23	South Dakota Urban Indian Health, Inc. (Sduih) Top agencies HHS (Department of Health and Human Services)	$13,249,847	0.2%	Rank history: #83 in FY2022, #74 in FY2023, not on the FY2024 list and #83 in FY2025; up 51 since FY2020.
24	Luke & Associates, Inc. Top agencies DHA (Defense Health Agency) Army (Department of the Army) USAF (Department of the Air Force)	$12,544,031	0.2%	Rank history: #37 in FY2022, #27 in FY2023, #20 in FY2024 and #51 in FY2025; up 42 since FY2020.
25	University of Massachusetts Through University of Massachusetts Medical School Top agencies DOJ (Department of Justice)	$11,004,901	0.2%	Rank history: #28 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2020.
26	The University of North Texas Health Science Center At Fort Worth Top agencies DOJ (Department of Justice)	$10,988,453	0.2%	Rank history: #26 in FY2022, #28 in FY2023, #25 in FY2024 and #49 in FY2025; up 20 since FY2020.
27	AB Staffing Solutions LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$10,985,976	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
28	Centene Corporation Through Health Net Federal Services, LLC Top agencies VA (Department of Veterans Affairs)	$10,953,263	0.2%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
29	Aphena Pharma Solutions Holdings, Inc. Through Aphena Pharma Solutions-Tennessee, LLC Top agencies VA (Department of Veterans Affairs)	$10,890,211	0.2%	Rank history: #29 in FY2022, #21 in FY2023, #47 in FY2024 and not on the FY2025 list; unchanged since FY2020.
30	Enterprise Resource Planning International, LLC Top agencies USAF (Department of the Air Force)	$9,927,495	0.2%	Rank history: #32 in FY2022, #23 in FY2023, #41 in FY2024 and #55 in FY2025; down 8 since FY2020.
31	Mercy Hospital Springfield Top agencies DOJ (Department of Justice)	$9,272,335	0.2%	Rank history: #44 in FY2022, #29 in FY2023, #23 in FY2024 and #34 in FY2025; up 4 since FY2020.
32	Matrix Providers Inc. Top agencies USAF (Department of the Air Force)	$9,138,099	0.2%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 26 since FY2020.
33	Hospital Housekeeping Systems LLC Top agencies USAF (Department of the Air Force)	$9,115,897	0.2%	Rank history: #36 in FY2022, not on the FY2023 list, #19 in FY2024 and #25 in FY2025; new, not ranked in FY2020.
34	Servefed Inc. Top agencies HHS (Department of Health and Human Services) NASA (National Aeronautics and Space Administration)	$8,946,846	0.2%	Rank history: #15 in FY2022, #16 in FY2023, #12 in FY2024 and #15 in FY2025; down 4 since FY2020.
35	Nebraska Urban Indian Health C Through Nebraska Urban Indian Health Coalition, Inc. Top agencies HHS (Department of Health and Human Services)	$8,055,428	0.1%	Rank history: not on the FY2022 list, #62 in FY2023, #75 in FY2024 and not on the FY2025 list; up 101 since FY2020.
36	Indian Health Center of Santa Clara Valley Top agencies HHS (Department of Health and Human Services)	$8,031,640	0.1%	Rank history: not on the FY2022 list, #95 in FY2023, #96 in FY2024 and not on the FY2025 list; up 35 since FY2020.
37	CS Holding Inc. Through CG Services LLC Top agencies DHA (Defense Health Agency)	$7,670,550	0.1%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
38	Commonwealth Home Health Care, Inc. Top agencies VA (Department of Veterans Affairs)	$7,539,523	0.1%	Rank history: #41 in FY2022, #33 in FY2023, #29 in FY2024 and #30 in FY2025; up 6 since FY2020.
39	American Indian Health & Services Corporation Top agencies HHS (Department of Health and Human Services)	$7,366,508	0.1%	Rank history: not on the FY2022–FY2025 lists; up 39 since FY2020.
40	United Network for Organ Sharing Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$7,003,791	0.1%	Rank history: #45 in FY2022, #58 in FY2023, #45 in FY2024 and #35 in FY2025; down 2 since FY2020.
41	Northwest Respiratory Services LLC Top agencies VA (Department of Veterans Affairs)	$6,540,561	0.1%	Rank history: #43 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 64 since FY2020.
42	Millennium Health & Fitness, Inc. Top agencies USAF (Department of the Air Force)	$6,476,474	0.1%	Rank history: #40 in FY2022, #38 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
43	STS Solutions and Training, LLC Top agencies DHA (Defense Health Agency)	$6,447,441	0.1%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
44	Community Surgical Supply of Toms River, LLC Top agencies VA (Department of Veterans Affairs)	$6,335,017	0.1%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
45	Eagle Health Analytics, LLC Top agencies HHS (Department of Health and Human Services)	$5,925,389	0.1%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	Front Line Ems LLC Top agencies HHS (Department of Health and Human Services)	$5,676,125	0.1%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
47	J & J Maintenance Inc. Top agencies USAF (Department of the Air Force)	$5,663,983	0.1%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
48	Seattle Indian Health Board Top agencies HHS (Department of Health and Human Services)	$5,645,586	0.1%	Rank history: #51 in FY2022, #46 in FY2023, #40 in FY2024 and #38 in FY2025; down 17 since FY2020.
49	Magnificus Corporation Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$5,437,126	0.1%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; up 14 since FY2020.
50	Medical Science & Computing, LLC Top agencies HHS (Department of Health and Human Services)	$5,353,739	0.1%	Rank history: not on the FY2022–FY2025 lists; up 73 since FY2020.
51	Indian Health Board of Minneapolis, Inc. Top agencies HHS (Department of Health and Human Services)	$5,260,955	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Science Applications International Corporation 2 awardees, including Engility Services, LLC Top agencies USAF (Department of the Air Force)	$4,881,993	0.1%	Rank history: #53 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Seven Corners Inc. Top agencies DOJ (Department of Justice)	$4,735,500	0.1%	Rank history: #16 in FY2022, #17 in FY2023, #15 in FY2024 and #12 in FY2025; up 187 since FY2020.
54	Inova Health System Foundation Through Inova Health Care Services Top agencies DOS (Department of State) DHA (Defense Health Agency)	$4,704,353	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	The Native American Rehabilitation Association of the Northwest, Incorporated Top agencies HHS (Department of Health and Human Services)	$4,702,657	0.1%	Rank history: #55 in FY2022, #50 in FY2023, #53 in FY2024 and #57 in FY2025; down 32 since FY2020.
56	Managed Care Advisors, Inc. Top agencies DHS (Department of Homeland Security)	$4,699,650	0.1%	Rank history: #90 in FY2022, not on the FY2023 list, #35 in FY2024 and #13 in FY2025; up 147 since FY2020.
57	Emergency Physicians Medical Group P.C. 2 awardees, including Vista Staffing Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$4,646,759	0.1%	Rank history: #61 in FY2022, #49 in FY2023, #39 in FY2024 and not on the FY2025 list; up 7 since FY2020.
58	Government of the United States 3 awardees, including Bakersfield American Indian Health Project, Santa Fe Indian School, Inc. and Nuclear Regulatory Commission Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$4,350,016	0.1%	Rank history: not on the FY2022 list, #98 in FY2023 and not on the FY2024–FY2025 lists; up 61 since FY2020.
59	Leidos Holdings, Inc. Through QTC Medical Services Inc. Top agencies DOJ (Department of Justice)	$4,349,000	0.1%	Rank history: not on the FY2022 list, #54 in FY2023, #51 in FY2024 and not on the FY2025 list; up 57 since FY2020.
60	Virginia Commonwealth University Through VCU Health System Authority Top agencies VA (Department of Veterans Affairs)	$4,300,070	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	The Royster Group, Inc. Top agencies DHA (Defense Health Agency)	$4,221,327	0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; down 19 since FY2020.
62	Koniag, Inc. 2 awardees, including Koniag Information Security Services LLC and Kadiak LLC Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$4,210,902	0.1%	Rank history: #65 in FY2022, #97 in FY2023, #89 in FY2024 and #42 in FY2025; up 73 since FY2020.
63	The Chenega Corporation 3 awardees, including Chenega Healthcare Services LLC Top agencies DOE (Department of Energy)	$4,162,677	0.1%	Rank history: not on the FY2022 list, #37 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
64	Dentrust Dental Texas, P.C. Top agencies Army (Department of the Army)	$4,124,540	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
65	A-Team Solutions LLC Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice)	$4,104,078	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 29 since FY2020.
66	Cherokee Nation Top agencies HHS (Department of Health and Human Services)	$3,921,714	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	International Consulting Associates, Inc. Top agencies HHS (Department of Health and Human Services)	$3,846,441	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	West Virginia United Health System, Inc. 2 awardees, including West Virginia University Hospitals, Inc. and United Hospital Center Inc. Top agencies DOJ (Department of Justice)	$3,792,156	0.1%	Rank history: not on the FY2022–FY2025 lists; up 81 since FY2020.
69	Oregon Health & Science University Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$3,781,298	0.1%	Rank history: #69 in FY2022, #30 in FY2023, #43 in FY2024 and #68 in FY2025; down 19 since FY2020.
70	Oklahoma State University 2 awardees Top agencies HHS (Department of Health and Human Services)	$3,761,625	0.1%	Rank history: #70 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2020.
71	Native American Development Corporation Top agencies HHS (Department of Health and Human Services)	$3,756,367	0.1%	Rank history: not on the FY2022–FY2025 lists; up 27 since FY2020.
72	21St Century Management Services, Inc. Top agencies DHA (Defense Health Agency)	$3,736,546	0.1%	Rank history: not on the FY2022 list, #59 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
73	CHG Healthcare Services Inc. Through CHG Companies, Inc. Top agencies HHS (Department of Health and Human Services)	$3,473,792	0.1%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; down 16 since FY2020.
74	Cross Country Healthcare, Inc. 2 awardees, including Medical Doctor Associates LLC and Assignment America LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$3,450,677	0.1%	Rank history: #67 in FY2022, not on the FY2023 list, #70 in FY2024 and not on the FY2025 list; up 2 since FY2020.
75	Interagency Readiness Solutions, LLC Top agencies Army (Department of the Army)	$3,375,695	0.1%	Rank history: #85 in FY2022, #94 in FY2023, #79 in FY2024 and #84 in FY2025; up 39 since FY2020.
76	Ami Expeditionary Healthcare, LLC Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice)	$3,305,695	0.1%	Rank history: not on the FY2022–FY2025 lists; down 57 since FY2020.
77	Chickasaw Futrend Health Alliance LLC Top agencies HHS (Department of Health and Human Services)	$3,250,337	0.1%	Rank history: #68 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
78	Grand River Aseptic Manufacturing, Inc. Top agencies Army (Department of the Army)	$3,160,680	0.1%	Rank history: not on the FY2022–FY2025 lists; down 73 since FY2020.
79	Distinctive Spectrum Military Healthcare Joint Venture LLC Top agencies Army (Department of the Army)	$3,066,215	0.1%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
80	Health Partner's Management Group, Incorporated Top agencies USAF (Department of the Air Force)	$2,994,911	0.1%	Rank history: #92 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
81	Seaborn Health Care Inc. Top agencies DOJ (Department of Justice)	$2,943,663	0.1%	Rank history: #96 in FY2022, #78 in FY2023, #71 in FY2024 and #52 in FY2025; down 2 since FY2020.
82	Eagle Health, LLC Top agencies Army (Department of the Army)	$2,939,731	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
83	Forensic Drug & Alcohol Testing LLC Top agencies DOT (Department of Transportation)	$2,923,237	0.1%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; down 23 since FY2020.
84	Vergence LLC Top agencies Army (Department of the Army)	$2,847,305	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 44 since FY2020.
85	Decypher Technologies Ltd Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force) DOJ (Department of Justice)	$2,773,166	<0.1%	Rank history: #86 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2020.
86	EGA Associates, LLC Top agencies VA (Department of Veterans Affairs)	$2,616,658	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
87	Bay Area Anesthesia LLC Top agencies HHS (Department of Health and Human Services)	$2,592,793	<0.1%	Rank history: #31 in FY2022, #22 in FY2023, #17 in FY2024 and #24 in FY2025; down 6 since FY2020.
88	Healthcare Resource Network LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$2,547,752	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
89	GLC On-The-Go, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$2,517,015	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
90	Akahi Ingenesis Partners LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$2,486,683	<0.1%	Rank history: #60 in FY2022, #75 in FY2023, #69 in FY2024 and not on the FY2025 list; up 5 since FY2020.
91	Varetis, Inc. Top agencies DOJ (Department of Justice)	$2,427,199	<0.1%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 250 since FY2020.
92	Vesa Health & Technology Inc. Top agencies DHA (Defense Health Agency)	$2,366,216	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 39 since FY2020.
93	American Indian Health and Family Services of Southeastern MI, Inc. Top agencies HHS (Department of Health and Human Services)	$2,323,770	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Giamed Alliance JV LLC Top agencies USAF (Department of the Air Force)	$2,315,597	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
95	Native Health Top agencies HHS (Department of Health and Human Services)	$2,296,225	<0.1%	Rank history: #14 in FY2022, #67 in FY2023, #62 in FY2024 and #61 in FY2025; down 61 since FY2020.
96	Caduceus Inc. Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOJ (Department of Justice)	$2,293,631	<0.1%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
97	Market Services, Inc. Top agencies HHS (Department of Health and Human Services)	$2,281,573	<0.1%	Rank history: #81 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
98	National Opinion Research Center Top agencies VA (Department of Veterans Affairs)	$2,254,584	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Global Empire LLC Top agencies DOJ (Department of Justice)	$2,221,464	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
100	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy)	$2,209,135	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 13 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 $5.8 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 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