Top 100 Contractors in NAICS 524: Insurance Carriers and Related Activities, FY2023

Name: Top 100 Contractors in NAICS 524: Insurance Carriers and Related Activities, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 94% of FY2023 NAICS 524 contract dollars

Contract obligations: $39,924,559,452 Net of deobligations, by contracts coded NAICS 524 or a code under it
Contractors: 247 Parent companies with an obligation
Largest contractor: Optum Public Sector Solutions Inc $16.2 billion, 40.2% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Optum Public Sector Solutions Inc Top agencies VA (Department of Veterans Affairs)	$16,215,640,032	40.2%	Rank history: not on the FY2021 list, #1 in FY2022, #4 in FY2024 and not on the FY2025 list; unchanged since FY2022.
2	Triwest Healthcare Alliance Corp Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency)	$7,951,170,206	19.7%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2024 and #2 in FY2025; up 1 since FY2022.
3	Tcfii Valor Buyer LLC Through Humana Government Business Inc. Top agencies DHA (Defense Health Agency)	$7,779,551,342	19.3%	Rank history: #2 in FY2021, #2 in FY2022, #5 in FY2024 and not on the FY2025 list; down 1 since FY2022.
4	Centene Corporation Through Health Net Federal Services, LLC Top agencies DHA (Defense Health Agency)	$3,301,136,134	8.2%	Rank history: #4 in FY2021, #4 in FY2022, #7 in FY2024 and not on the FY2025 list; unchanged since FY2022.
5	Express Scripts Inc. 2 awardees Top agencies DHA (Defense Health Agency)	$672,305,787	1.7%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and #5 in FY2025; new.
6	The Johns Hopkins Health System Corporation Through The Johns Hopkins Medical Services Corporation Top agencies DHA (Defense Health Agency)	$473,725,930	1.2%	Rank history: #7 in FY2021, #8 in FY2022, #14 in FY2024 and not on the FY2025 list; up 2 since FY2022.
7	Blue Cross & Blue Shield of South Carolina 2 awardees, including Palmetto Gba, LLC and CGS Administrators, LLC Top agencies HHS (Department of Health and Human Services)	$450,850,944	1.1%	Rank history: #9 in FY2021, #10 in FY2022, #13 in FY2024 and not on the FY2025 list; up 3 since FY2022.
8	Martins Point Health Care Inc. Top agencies DHA (Defense Health Agency)	$416,110,446	1.0%	Rank history: #8 in FY2021, #9 in FY2022, #9 in FY2024 and #7 in FY2025; up 1 since FY2022.
9	Highmark Inc. Through United Concordia Companies, Inc. Top agencies DHA (Defense Health Agency) CFPB (Consumer Financial Protection Bureau)	$384,297,166	1.0%	Rank history: #6 in FY2021, #7 in FY2022, #26 in FY2024 and not on the FY2025 list; down 2 since FY2022.
10	Health Net Federal Services, LLC Top agencies DHA (Defense Health Agency)	$299,945,005	0.7%	Rank history: #46 in FY2021, #6 in FY2022, #6 in FY2024 and #4 in FY2025; down 4 since FY2022.
11	Anthem Inc. Through Wellpoint Federal Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$193,108,587	0.5%	Rank history: #15 in FY2021, #16 in FY2022, #24 in FY2024 and #12 in FY2025; up 5 since FY2022.
12	Pacmed Clinics Top agencies DHA (Defense Health Agency)	$176,042,519	0.4%	Rank history: #12 in FY2021, #13 in FY2022, #16 in FY2024 and #13 in FY2025; up 1 since FY2022.
13	Guidewell Mutual Holding Corporation Through Novitas Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$164,169,876	0.4%	Rank history: #10 in FY2021, #14 in FY2022, #23 in FY2024 and not on the FY2025 list; up 1 since FY2022.
14	Brighton Marine, Inc. Top agencies DHA (Defense Health Agency)	$156,289,958	0.4%	Rank history: #14 in FY2021, #15 in FY2022, #19 in FY2024 and #15 in FY2025; up 1 since FY2022.
15	International SOS Government Services Inc. Top agencies DHA (Defense Health Agency)	$140,252,878	0.3%	Rank history: #18 in FY2021, #19 in FY2022, #18 in FY2024 and #14 in FY2025; up 4 since FY2022.
16	Christus Health Top agencies DHA (Defense Health Agency)	$139,748,493	0.3%	Rank history: #16 in FY2021, #18 in FY2022, #21 in FY2024 and #17 in FY2025; up 2 since FY2022.
17	Signature Choice, LLC Top agencies VA (Department of Veterans Affairs)	$130,386,323	0.3%	Rank history: #17 in FY2021, #23 in FY2022, #35 in FY2024 and not on the FY2025 list; up 6 since FY2022.
18	Svcmc, Inc. Top agencies DHA (Defense Health Agency)	$117,019,364	0.3%	Rank history: #19 in FY2021, #20 in FY2022, #22 in FY2024 and #19 in FY2025; up 2 since FY2022.
19	Heritage Health Solutions, Inc. Top agencies DOJ (Department of Justice)	$108,664,093	0.3%	Rank history: #20 in FY2021, #21 in FY2022, not on the FY2024 list and #20 in FY2025; up 2 since FY2022.
20	Noridian Mutual Insurance Company Through Noridian Healthcare Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$99,979,437	0.2%	Rank history: #11 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
21	Wisconsin Physicians Service Insurance Corp. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$99,375,007	0.2%	Rank history: #13 in FY2021, #12 in FY2022, #20 in FY2024 and #16 in FY2025; down 9 since FY2022.
22	First Coast Service Options Inc. Top agencies HHS (Department of Health and Human Services)	$69,105,668	0.2%	Rank history: not on the FY2021–FY2022 lists, #28 in FY2024 and #21 in FY2025; up 132 since FY2022.
23	UnitedHealth Group Incorporated 4 awardees, including Optumserve Technology Services, Inc., United Healthcare Services,Inc. and Optumserve Health Services, Inc. Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$43,796,041	0.1%	Rank history: #1 in FY2021, #22 in FY2022, #1 in FY2024 and #1 in FY2025; down 1 since FY2022.
24	Marsh & Mclennan Companies Inc. 2 awardees, including Torrent Technologies, Inc. and Guy Carpenter & Company, LLC Top agencies DHS (Department of Homeland Security)	$43,648,584	0.1%	Rank history: #25 in FY2021, #25 in FY2022, #29 in FY2024 and #47 in FY2025; up 1 since FY2022.
25	Serco North America (Holdings) Inc Through Serco Inc. Top agencies PBGC (Pension Benefit Guaranty Corporation)	$26,150,217	0.1%	Rank history: #23 in FY2021, #26 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
26	Novitas Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$24,510,081	0.1%	Rank history: not on the FY2021 list, #17 in FY2022, #15 in FY2024 and #10 in FY2025; down 9 since FY2022.
27	Serco Inc Top agencies PBGC (Pension Benefit Guaranty Corporation)	$20,462,917	0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and not on the FY2025 list; new.
28	Sedgwick Public Sector LLC Through Managed Care Advisors, Inc. Top agencies HHS (Department of Health and Human Services)	$20,086,564	<0.1%	Rank history: not on the FY2021 list, #32 in FY2022, #33 in FY2024 and not on the FY2025 list; up 4 since FY2022.
29	Metlife, Inc. 3 awardees, including Metropolitan Life Insurance Co, American Life Insurance Company and Metlife Emeklilik VE Hayat Anonim Sirketi Top agencies SEC (Securities and Exchange Commission) Treasury (Department of the Treasury) CFPB (Consumer Financial Protection Bureau)	$16,371,902	<0.1%	Rank history: #29 in FY2021, #31 in FY2022, #46 in FY2024 and not on the FY2025 list; up 2 since FY2022.
30	Healthequity, Inc. 2 awardees Top agencies OPM (Office of Personnel Management) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$16,023,396	<0.1%	Rank history: #33 in FY2021, #34 in FY2022, #34 in FY2024 and #25 in FY2025; up 4 since FY2022.
31	Naphcare LLC Top agencies DOJ (Department of Justice)	$14,897,503	<0.1%	Rank history: not on the FY2021 list, #35 in FY2022, #43 in FY2024 and #34 in FY2025; up 4 since FY2022.
32	Insurance Services Office Inc. 2 awardees, including ISO Services, Inc. Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$14,091,968	<0.1%	Rank history: #91 in FY2021, #38 in FY2022, #37 in FY2024 and #28 in FY2025; up 6 since FY2022.
33	Alliant Insurance Services, Inc. Top agencies DOT (Department of Transportation) DOS (Department of State) VA (Department of Veterans Affairs)	$11,628,920	<0.1%	Rank history: #28 in FY2021, #30 in FY2022, #32 in FY2024 and #26 in FY2025; down 3 since FY2022.
34	Milliman, Inc. Top agencies VA (Department of Veterans Affairs)	$10,916,227	<0.1%	Rank history: #26 in FY2021, #33 in FY2022, #45 in FY2024 and #36 in FY2025; down 1 since FY2022.
35	Acentra Health LLC Top agencies DOL (Department of Labor)	$8,901,303	<0.1%	Rank history: #41 in FY2021, #39 in FY2022, #41 in FY2024 and #33 in FY2025; up 4 since FY2022.
36	The SSI Group Inc Top agencies HHS (Department of Health and Human Services)	$7,239,139	<0.1%	Rank history: #27 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
37	American Pet Insurance Company Top agencies VA (Department of Veterans Affairs)	$6,578,612	<0.1%	Rank history: #40 in FY2021, #46 in FY2022, #44 in FY2024 and not on the FY2025 list; up 9 since FY2022.
38	Capitol Bridge, LLC Top agencies HHS (Department of Health and Human Services)	$5,970,452	<0.1%	Rank history: #42 in FY2021, #44 in FY2022, #80 in FY2024 and #44 in FY2025; up 6 since FY2022.
39	AXA Seguros S.a. DE C.V. Through AXA Seguros Top agencies DOS (Department of State) DHS (Department of Homeland Security)	$5,680,288	<0.1%	Rank history: #39 in FY2021, #45 in FY2022, #42 in FY2024 and not on the FY2025 list; up 6 since FY2022.
40	Reli Group Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$5,600,587	<0.1%	Rank history: #34 in FY2021, #37 in FY2022, #51 in FY2024 and #60 in FY2025; down 3 since FY2022.
41	Conduent Federal Solutions LLC Top agencies DOL (Department of Labor)	$5,431,923	<0.1%	Rank history: #35 in FY2021, #42 in FY2022, #39 in FY2024 and #31 in FY2025; up 1 since FY2022.
42	Al-Nisr Al-Arabi Insurance Top agencies DOS (Department of State)	$4,637,644	<0.1%	Rank history: #48 in FY2021, #52 in FY2022, #50 in FY2024 and #46 in FY2025; up 10 since FY2022.
43	Malath Cooperative Insurance and Reinsurance Company Top agencies DOS (Department of State)	$4,421,680	<0.1%	Rank history: #45 in FY2021, #48 in FY2022, #49 in FY2024 and #42 in FY2025; up 5 since FY2022.
44	Delta Dental of California 2 awardees, including Delta Dental Insurance Company Top agencies Treasury (Department of the Treasury)	$4,343,264	<0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #52 in FY2024 and not on the FY2025 list; up 3 since FY2022.
45	Horizon Strategies LLC Top agencies Army (Department of the Army)	$4,132,881	<0.1%	Rank history: #53 in FY2021, #63 in FY2022, #99 in FY2024 and not on the FY2025 list; up 18 since FY2022.
46	American Life Insurance Company Alico Lebanon Top agencies DOS (Department of State)	$3,712,172	<0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #57 in FY2024 and #50 in FY2025; up 47 since FY2022.
47	Paragon Benefits, Inc. Top agencies Navy (Department of the Navy)	$3,496,400	<0.1%	Rank history: #38 in FY2021, #41 in FY2022, #47 in FY2024 and #62 in FY2025; down 6 since FY2022.
48	Aetna Health Insurance (Thailand) Public Company Limited Top agencies DOS (Department of State)	$3,428,925	<0.1%	Rank history: not on the FY2021 list, #51 in FY2022, #48 in FY2024 and not on the FY2025 list; up 3 since FY2022.
49	Nuvologic Consulting Inc. Top agencies HUD (Department of Housing and Urban Development)	$3,383,204	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #64 in FY2025; new.
50	Palisade-Heritage JV LLC 2 awardees Top agencies VA (Department of Veterans Affairs)	$3,114,577	<0.1%	Rank history: not on the FY2021 list, #60 in FY2022, #94 in FY2024 and not on the FY2025 list; up 10 since FY2022.
51	Asuransi Jasa Indonesia (Persero), PT Top agencies DOS (Department of State)	$2,931,543	<0.1%	Rank history: #55 in FY2021, #65 in FY2022, #59 in FY2024 and #53 in FY2025; up 14 since FY2022.
52	New Sudan Insurance Company Ltd Top agencies DOS (Department of State)	$2,623,317	<0.1%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; up 113 since FY2022.
53	British United Provident Association Limited(the) Through Bupa Acibadem Sigorta Anonim Sirketi" Top agencies DOS (Department of State)	$2,519,924	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and #40 in FY2025; new.
54	International Medical Group Inc. Top agencies Peace Corps	$2,471,258	<0.1%	Rank history: #37 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 27 since FY2022.
55	Uniqa Insurance Group AG 2 awardees, including Private Joint Stock Company "Insurance Company "Uniqa" and Sigal Insurance Group Sh.a. Top agencies DOS (Department of State)	$2,446,719	<0.1%	Rank history: #58 in FY2021, #56 in FY2022, #64 in FY2024 and not on the FY2025 list; up 1 since FY2022.
56	STI Investments Inc. Through Philhealthcare, Inc. Top agencies DOS (Department of State) DSCA (Defense Security Cooperation Agency)	$2,236,704	<0.1%	Rank history: #51 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
57	AIA Singapore Private Limited 2 awardees, including AIA Life Insurance Company Limited Beijing Branch Top agencies DOS (Department of State) Navy (Department of the Navy) Commerce (Department of Commerce)	$2,198,503	<0.1%	Rank history: #64 in FY2021, #62 in FY2022, #96 in FY2024 and not on the FY2025 list; up 5 since FY2022.
58	Delta Dental of South Dakota Top agencies HHS (Department of Health and Human Services)	$2,043,425	<0.1%	Rank history: #65 in FY2021, #59 in FY2022, #71 in FY2024 and #56 in FY2025; up 1 since FY2022.
59	Sinoasia B&R Insurance Company Joint Stock Company Top agencies DOS (Department of State)	$2,023,366	<0.1%	Rank history: not on the FY2021 list, #92 in FY2022, #60 in FY2024 and #57 in FY2025; up 33 since FY2022.
60	Lisungi SA Top agencies DOS (Department of State) USAID (US Agency for International Development) HHS (Department of Health and Human Services)	$2,011,595	<0.1%	Rank history: #67 in FY2021, #64 in FY2022, #56 in FY2024 and #54 in FY2025; up 4 since FY2022.
61	Great-West Life Assurance Company the Through The Canada Life Assurance Co. Top agencies DOS (Department of State)	$1,902,051	<0.1%	Rank history: #63 in FY2021, #66 in FY2022, #69 in FY2024 and #79 in FY2025; up 5 since FY2022.
62	Britam - Companhia De Seguros De Mocambique, S.A Top agencies DOS (Department of State)	$1,863,513	<0.1%	Rank history: not on the FY2021 list, #68 in FY2022, #63 in FY2024 and #68 in FY2025; up 6 since FY2022.
63	Defense Collaboration Group LLC Top agencies Army (Department of the Army)	$1,848,347	<0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2024 and #92 in FY2025; new.
64	Ascoma Tchad Top agencies DOS (Department of State)	$1,738,975	<0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #89 in FY2024 and #75 in FY2025; up 34 since FY2022.
65	Assemble Insurance Tanzania Limited Top agencies DOS (Department of State)	$1,684,244	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #74 in FY2025; new.
66	IT Data Consulting L.L.C. Top agencies HUD (Department of Housing and Urban Development)	$1,518,505	<0.1%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2024 and #76 in FY2025; new.
67	Administradora De Riesgos De Salud DR. Yunen S A Top agencies DOS (Department of State)	$1,414,069	<0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2024 and #65 in FY2025; up 90 since FY2022.
68	Viettel Burundi S.a. Through BAO Minh Ha NOI Insurance Company Top agencies DOS (Department of State)	$1,393,397	<0.1%	Rank history: #68 in FY2021, #72 in FY2022, #90 in FY2024 and not on the FY2025 list; up 4 since FY2022.
69	Waseyabek Falcon JV, LLC Top agencies HUD (Department of Housing and Urban Development)	$1,374,389	<0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2024 and not on the FY2025 list; new.
70	TBC Insurance JSC Top agencies DOS (Department of State) USAID (US Agency for International Development)	$1,250,323	<0.1%	Rank history: #98 in FY2021, #96 in FY2022 and not on the FY2024–FY2025 lists; up 26 since FY2022.
71	Palisade Strategies, LLC Top agencies VA (Department of Veterans Affairs)	$1,239,164	<0.1%	Rank history: #72 in FY2021, #69 in FY2022, #93 in FY2024 and #59 in FY2025; down 2 since FY2022.
72	Arthur J Gallagher & Co Top agencies DOT (Department of Transportation)	$1,200,000	<0.1%	Rank history: not on the FY2021 list, #74 in FY2022, #85 in FY2024 and not on the FY2025 list; up 2 since FY2022.
73	Almaseer Insurance Company Top agencies DOS (Department of State)	$1,188,725	<0.1%	Rank history: #75 in FY2021, #77 in FY2022, #81 in FY2024 and #72 in FY2025; up 4 since FY2022.
74	Ensa - Seguros De Angola, S.A. Top agencies DOS (Department of State)	$1,097,674	<0.1%	Rank history: #76 in FY2021, #78 in FY2022, #79 in FY2024 and #93 in FY2025; up 4 since FY2022.
75	Nacional Seguros Vida Y Salud SA Top agencies DOS (Department of State)	$1,096,498	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
76	GBG Insurance Ltd Top agencies DOS (Department of State)	$1,085,164	<0.1%	Rank history: not on the FY2021 list, #82 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
77	PAK Qatar Family Takaful Limited Top agencies DOS (Department of State)	$1,073,174	<0.1%	Rank history: #71 in FY2021, #73 in FY2022, #87 in FY2024 and not on the FY2025 list; down 4 since FY2022.
78	Bajaj General Insurance Limited Top agencies DOS (Department of State)	$1,061,077	<0.1%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2024 and #70 in FY2025; new.
79	Afma SA Top agencies DOS (Department of State)	$1,058,116	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #38 in FY2025; up 134 since FY2022.
80	UEI M5D4G8Y32F83 Top agencies DOS (Department of State)	$1,055,720	<0.1%	Rank history: #82 in FY2021, #84 in FY2022, #86 in FY2024 and not on the FY2025 list; up 4 since FY2022.
81	Pan American Life Insurance De Panama SA Top agencies DOS (Department of State)	$1,049,398	<0.1%	Rank history: #87 in FY2021, #86 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
82	Sisa Vida Seguros DE Personas SA Through Sisa Vida SA Seguro De Personas Top agencies DOS (Department of State)	$1,033,122	<0.1%	Rank history: #78 in FY2021, #87 in FY2022, #76 in FY2024 and #85 in FY2025; up 5 since FY2022.
83	Penser North America, Inc. Top agencies DOE (Department of Energy)	$978,262	<0.1%	Rank history: #83 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 34 since FY2022.
84	Snic Insurance B.S.C.(C) Through Snic Insurance B.s.c. Top agencies DOS (Department of State)	$968,160	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #83 in FY2025; up 46 since FY2022.
85	Dhaif Insurance Agency Co. W.l.l Top agencies Navy (Department of the Navy) Army (Department of the Army) DODEA (Department of Defense Education Activity)	$964,535	<0.1%	Rank history: #66 in FY2021, not on the FY2022 list, #68 in FY2024 and #67 in FY2025; up 35 since FY2022.
86	Family Guardian Insurance Company Limited Top agencies DOS (Department of State)	$909,356	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022, #74 in FY2024 and #71 in FY2025; down 6 since FY2022.
87	AON Consulting Inc. 2 awardees, including Paragon Strategic Solutions Inc. Top agencies Treasury (Department of the Treasury)	$904,104	<0.1%	Rank history: #57 in FY2021, #53 in FY2022 and not on the FY2024–FY2025 lists; down 34 since FY2022.
88	Sigma Vienna Insurance Group SH.a.- Dega Kosove 2 awardees, including Bulstrad Life Vienna Insurance Group EAD Top agencies DOS (Department of State)	$894,831	<0.1%	Rank history: #70 in FY2021, #71 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
89	CONCORDIA Top agencies DOS (Department of State)	$854,672	<0.1%	Rank history: #85 in FY2021, #88 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
90	AON Global Limited Through Inpoint, Inc. Top agencies Treasury (Department of the Treasury)	$830,400	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Saham Assurance Vie CI Top agencies DOS (Department of State)	$823,813	<0.1%	Rank history: #94 in FY2021, #90 in FY2022, #100 in FY2024 and #90 in FY2025; down 1 since FY2022.
92	Saham Assurance Niger Top agencies DOS (Department of State)	$811,045	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 14 since FY2022.
93	Seguros Caracas DE Liberty Mutual C.a. Through Seguros Caracas C.A. Top agencies DOS (Department of State)	$801,148	<0.1%	Rank history: #86 in FY2021, #97 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
94	Bupa Acibadem Sigorta Anonim Sirketi" Top agencies DOS (Department of State)	$779,322	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
95	Bupa Compania DE Seguros DE Vida S.a. Top agencies DOS (Department of State)	$764,087	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 7 since FY2022.
96	Sunu Assurances Iard Congo SA Top agencies DOS (Department of State)	$724,305	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Pacific Cross Insurance Company Limited Top agencies DOS (Department of State)	$695,865	<0.1%	Rank history: #89 in FY2021, #81 in FY2022, not on the FY2024 list and #95 in FY2025; down 16 since FY2022.
98	Acacia Health Insurance Top agencies DOS (Department of State)	$659,902	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
99	Meqa Sigorta ASC Top agencies DOS (Department of State)	$640,007	<0.1%	Rank history: #90 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 8 since FY2022.
100	Seven Corners Inc. Top agencies DOS (Department of State)	$634,481	<0.1%	Rank history: #54 in FY2021, #57 in FY2022, #75 in FY2024 and #77 in FY2025; down 43 since FY2022.

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100 of 247 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 524

Code	Net obligations	Largest contractor
5241 Insurance Carriers	$39,281,073,472	Optum Public Sector Solutions Inc
5242 Agencies, Brokerages, and Other Insurance Related Activities	$643,485,980	Triwest Healthcare Alliance Corp

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 $40.4 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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

Who were the top 10 NAICS 524 contractors in FY2023?

1. Optum Public Sector Solutions Inc ($16.2B), 2. Triwest Healthcare Alliance Corp ($7.95B), 3. Tcfii Valor Buyer LLC ($7.78B), 4. Centene Corporation ($3.3B), 5. Express Scripts Inc. ($672M), 6. The Johns Hopkins Health System Corporation ($474M), 7. Blue Cross & Blue Shield of South Carolina ($451M), 8. Martins Point Health Care Inc. ($416M), 9. Highmark Inc. ($384M), 10. Health Net Federal Services, LLC ($300M).

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