Top 100 Contractors in NAICS 813: Religious, Grantmaking, Civic, Professional, and Similar Organizations, FY2023

Name: Top 100 Contractors in NAICS 813: Religious, Grantmaking, Civic, Professional, and Similar Organizations, FY2023
Creator: GovTribe

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

The top 10 won 42% of FY2023 NAICS 813 contract dollars

Contract obligations: $230,889,155 Net of deobligations, by contracts coded NAICS 813 or a code under it
Contractors: 1,021 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $22.8 million, 9.1% 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	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies DHA (Defense Health Agency) USUHS (DOD Uniformed Services University of the Health Sciences) USAF (Department of the Air Force)	$22,823,071	9.1%	Rank history: not on the FY2021 list, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Joint Commission On Accreditation of Healthcare Organizations Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services) DHA (Defense Health Agency)	$17,188,922	6.9%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2024 and #2 in FY2025; unchanged since FY2022.
3	Tetra Tech, Inc. Through Ard, Inc. Top agencies USAID (US Agency for International Development)	$15,791,268	6.3%	Rank history: #8 in FY2021, #3 in FY2022, #3 in FY2024 and #4 in FY2025; unchanged since FY2022.
4	The Texas A&M University System 3 awardees, including Texas A & M University Kingsville, Texas A&M Transportation Institute and Texas A & M University Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$15,236,223	6.1%	Rank history: #34 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; up 38 since FY2022.
5	Aveco Holding AG Through Wisag Technical Military Support Services GMBH & Co. KG Top agencies DECA (Defense Commissary Agency)	$10,814,853	4.3%	Rank history: not on the FY2021 list, #8 in FY2022, #5 in FY2024 and not on the FY2025 list; up 3 since FY2022.
6	West Virginia Medical Institute Inc. Through Quality Insights, Inc. Top agencies VA (Department of Veterans Affairs)	$8,920,751	3.6%	Rank history: #2 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
7	Michigan Peer Review Organization Top agencies VA (Department of Veterans Affairs)	$3,627,387	1.4%	Rank history: #17 in FY2021, #20 in FY2022 and not on the FY2024–FY2025 lists; up 13 since FY2022.
8	Liberty Island Holdings II, LLC Top agencies Army (Department of the Army)	$3,600,000	1.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
9	Naval Academy Athletic Association Top agencies Navy (Department of the Navy)	$3,517,907	1.4%	Rank history: #7 in FY2021, #7 in FY2022, #100 in FY2024 and #5 in FY2025; down 2 since FY2022.
10	North American Association of Central Cancer Registries Inc. Top agencies HHS (Department of Health and Human Services)	$3,354,279	1.3%	Rank history: #12 in FY2021, #14 in FY2022, #8 in FY2024 and #11 in FY2025; up 4 since FY2022.
11	National Disability Rights Network Inc. Top agencies HHS (Department of Health and Human Services)	$2,942,367	1.2%	Rank history: #9 in FY2021, #13 in FY2022, #9 in FY2024 and #6 in FY2025; up 2 since FY2022.
12	State of New York Through Human Rights New York State Division Of Top agencies EEOC (Equal Employment Opportunity Commission)	$2,661,100	1.1%	Rank history: #11 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
13	Lumetra Healthcare Solutions Top agencies VA (Department of Veterans Affairs)	$2,642,884	1.1%	Rank history: #22 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; up 24 since FY2022.
14	Institute of Transportation Engineers, Inc. Top agencies DOT (Department of Transportation)	$2,631,694	1.0%	Rank history: #69 in FY2021, #5 in FY2022, #16 in FY2024 and #26 in FY2025; down 9 since FY2022.
15	State of California Controllers Office 2 awardees, including Civil Rights Department and University of California, Davis Top agencies EEOC (Equal Employment Opportunity Commission) EPA (Environmental Protection Agency)	$2,536,500	1.0%	Rank history: #5 in FY2021, #10 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
16	Nevada State Veterans Home 2 awardees, including Nevada System of Higher Education and Training and Rehabilitation. Nevada Department of Employment Top agencies Commerce (Department of Commerce) EEOC (Equal Employment Opportunity Commission)	$2,474,716	1.0%	Rank history: #10 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
17	American Association for the Advancement of Science Top agencies DOS (Department of State) HHS (Department of Health and Human Services) Treasury (Department of the Treasury)	$2,341,649	0.9%	Rank history: #14 in FY2021, #23 in FY2022, #24 in FY2024 and #31 in FY2025; up 6 since FY2022.
18	Maximus Inc. Through Maximus Federal Services, Inc. Top agencies VA (Department of Veterans Affairs)	$2,200,190	0.9%	Rank history: #36 in FY2021, #35 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
19	National Crime Prevention Council Inc. Top agencies Commerce (Department of Commerce)	$2,154,000	0.9%	Rank history: #30 in FY2021, #18 in FY2022, not on the FY2024 list and #70 in FY2025; down 1 since FY2022.
20	Provider Resources Inc 2 awardees Top agencies VA (Department of Veterans Affairs)	$2,133,975	0.9%	Rank history: #29 in FY2021, #34 in FY2022, #10 in FY2024 and not on the FY2025 list; up 14 since FY2022.
21	Sae International Top agencies DOT (Department of Transportation)	$2,003,831	0.8%	Rank history: #13 in FY2021, #24 in FY2022, #17 in FY2024 and #8 in FY2025; up 3 since FY2022.
22	American Board of Family Medicine Inc. Top agencies HHS (Department of Health and Human Services)	$1,702,926	0.7%	Rank history: #20 in FY2021, #25 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
23	Pennsylvania Commonwealth of Through Pennsylvania Human Relations Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$1,669,800	0.7%	Rank history: #31 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
24	National Association for Public Health Statistics and Information Systems, Inc. Top agencies SSA (Social Security Administration) DCSA (Defense Counterintelligence and Security Agency) HHS (Department of Health and Human Services)	$1,645,853	0.7%	Rank history: #15 in FY2021, #26 in FY2022, #11 in FY2024 and #25 in FY2025; up 2 since FY2022.
25	Ohio Civil Rights Commission 2 awardees, including Civil Rights Commission Ohio and The State of Ohio Office of Budget and Management Top agencies EEOC (Equal Employment Opportunity Commission) NASA (National Aeronautics and Space Administration)	$1,619,466	0.6%	Rank history: #24 in FY2021, #22 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
26	Commission On Accreditation of Rehabilitation Facilities Top agencies VA (Department of Veterans Affairs)	$1,421,359	0.6%	Rank history: #6 in FY2021, #27 in FY2022, #7 in FY2024 and #10 in FY2025; up 1 since FY2022.
27	Jesuit Refugee Service USA Top agencies DHS (Department of Homeland Security)	$1,299,584	0.5%	Rank history: #25 in FY2021, #29 in FY2022, #22 in FY2024 and #18 in FY2025; up 2 since FY2022.
28	Secretary of State Connecticut Through Human Rights & Opportunities Connecticut Commission On Top agencies EEOC (Equal Employment Opportunity Commission)	$1,255,350	0.5%	Rank history: #27 in FY2021, #28 in FY2022, #28 in FY2024 and not on the FY2025 list; unchanged since FY2022.
29	Cornell University Top agencies Commerce (Department of Commerce)	$1,169,708	0.5%	Rank history: #35 in FY2021, #36 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
30	The Commonwealth of Massachusetts Through Administration and Finance, Massachusetts Executive Office For Top agencies EEOC (Equal Employment Opportunity Commission)	$1,166,200	0.5%	Rank history: #19 in FY2021, #31 in FY2022, #25 in FY2024 and not on the FY2025 list; up 1 since FY2022.
31	American College of Surgeons Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,060,796	0.4%	Rank history: #18 in FY2021, #17 in FY2022, #89 in FY2024 and #15 in FY2025; down 14 since FY2022.
32	State of Illinois Through Department of Human Rights Illinois Top agencies EEOC (Equal Employment Opportunity Commission)	$1,042,800	0.4%	Rank history: #23 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
33	Capital Factory Properties LLC Top agencies Army (Department of the Army)	$1,023,628	0.4%	Rank history: #43 in FY2021, #47 in FY2022, #26 in FY2024 and #17 in FY2025; up 14 since FY2022.
34	Florida Commission On Human Relations Top agencies EEOC (Equal Employment Opportunity Commission)	$1,002,400	0.4%	Rank history: #37 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
35	Ensafe-Ics JV, LLC Top agencies Army (Department of the Army)	$999,000	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
36	University of Nebraska Through Board of Regents of the University of Nebraska Top agencies Commerce (Department of Commerce)	$986,127	0.4%	Rank history: #39 in FY2021, #46 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
37	Purdue University Top agencies Commerce (Department of Commerce)	$966,480	0.4%	Rank history: #68 in FY2021, #50 in FY2022, #31 in FY2024 and #27 in FY2025; up 13 since FY2022.
38	Full Armor Group, Inc. Top agencies Navy (Department of the Navy)	$963,022	0.4%	Rank history: #53 in FY2021, #41 in FY2022, #48 in FY2024 and not on the FY2025 list; up 3 since FY2022.
39	University of North Carolina at Chapel Hill Top agencies Commerce (Department of Commerce) EPA (Environmental Protection Agency)	$956,814	0.4%	Rank history: #54 in FY2021, #49 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
40	Wisconsin State of Through Wisconsin Department of Workforce Development Top agencies EEOC (Equal Employment Opportunity Commission)	$934,100	0.4%	Rank history: #38 in FY2021, #45 in FY2022, #41 in FY2024 and not on the FY2025 list; up 5 since FY2022.
41	The National Fallen Firefighters Foundation Top agencies DHS (Department of Homeland Security)	$925,707	0.4%	Rank history: #74 in FY2021, #80 in FY2022, #47 in FY2024 and not on the FY2025 list; up 39 since FY2022.
42	State Health Services Texas Department of Through Texas Workforce Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$918,200	0.4%	Rank history: #32 in FY2021, #39 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
43	National Minority Supplier Development Council Inc. Top agencies Commerce (Department of Commerce)	$860,000	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	National Academy of Public Administration Top agencies USAID (US Agency for International Development)	$849,939	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	American Hospital Association Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$841,238	0.3%	Rank history: #45 in FY2021, #58 in FY2022, #40 in FY2024 and #24 in FY2025; up 13 since FY2022.
46	National Fish and Wildlife Foundation Top agencies DOI (Department of the Interior) DOT (Department of Transportation)	$825,793	0.3%	Rank history: not on the FY2021 list, #9 in FY2022, #84 in FY2024 and not on the FY2025 list; down 37 since FY2022.
47	Dt-Trak Consulting, Inc. Top agencies HHS (Department of Health and Human Services)	$758,200	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) DOE (Department of Energy)	$750,259	0.3%	Rank history: #47 in FY2021, #56 in FY2022, #43 in FY2024 and not on the FY2025 list; up 8 since FY2022.
49	Pact, Inc. Top agencies USAID (US Agency for International Development)	$750,000	0.3%	Rank history: #4 in FY2021, #12 in FY2022 and not on the FY2024–FY2025 lists; down 37 since FY2022.
50	John Wiley & Sons Inc. Top agencies Navy (Department of the Navy)	$746,927	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
51	Morse Nichols & Associates LLC Top agencies HHS (Department of Health and Human Services)	$726,750	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	The Amyotrophic Lateral Sclerosis Association Top agencies HHS (Department of Health and Human Services)	$714,914	0.3%	Rank history: #66 in FY2021, #98 in FY2022, #76 in FY2024 and #93 in FY2025; up 46 since FY2022.
53	State of Iowa Through Iowa Department of Executive Office Top agencies EEOC (Equal Employment Opportunity Commission)	$701,700	0.3%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and not on the FY2025 list; new.
54	Idemma LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$695,996	0.3%	Rank history: #48 in FY2021, #67 in FY2022, #50 in FY2024 and #58 in FY2025; up 13 since FY2022.
55	Oregon State of Through Labor & Industries Oregon Bureau Of Top agencies EEOC (Equal Employment Opportunity Commission)	$682,050	0.3%	Rank history: #59 in FY2021, #60 in FY2022, #60 in FY2024 and not on the FY2025 list; up 5 since FY2022.
56	Digital Promise Global Top agencies ED (Department of Education)	$669,458	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Academy Health Top agencies VA (Department of Veterans Affairs)	$661,747	0.3%	Rank history: #65 in FY2021, #30 in FY2022, #27 in FY2024 and #49 in FY2025; down 27 since FY2022.
58	Corrections Colorado Department of 2 awardees, including Colorado Department of Regulatory Agencies and Colorado Department of Natural Resources Top agencies EEOC (Equal Employment Opportunity Commission) DOI (Department of the Interior)	$659,300	0.3%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and not on the FY2025 list; new.
59	American Psychological Association Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$624,394	0.2%	Rank history: #44 in FY2021, not on the FY2022 list, #66 in FY2024 and #38 in FY2025; returned.
60	University of Texas System 3 awardees, including University of Texas At Austin and The University of Texas Health Science Center At San Antonio Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) DOI (Department of the Interior)	$610,195	0.2%	Rank history: not on the FY2021 list, #71 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
61	Music Ministry International Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$607,474	0.2%	Rank history: #73 in FY2021, #69 in FY2022, #70 in FY2024 and not on the FY2025 list; up 8 since FY2022.
62	Deloitte LLP Through Deloitte Consulting LLP Top agencies DOE (Department of Energy)	$590,980	0.2%	Rank history: #61 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
63	Gartner, Inc. Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration)	$573,452	0.2%	Rank history: not on the FY2021 list, #89 in FY2022, #44 in FY2024 and not on the FY2025 list; up 26 since FY2022.
64	Department of Civil Rights Michigan Top agencies EEOC (Equal Employment Opportunity Commission)	$570,940	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	American College of Medical Toxicology Incorporated Top agencies HHS (Department of Health and Human Services)	$550,000	0.2%	Rank history: #93 in FY2021, #85 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
66	The Institute of Electrical and Electronics Engineers Incorp Through Institute of Electrical & Electronics Engineers Inc. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) DISA (Defense Information Systems Agency)	$548,315	0.2%	Rank history: #55 in FY2021, #57 in FY2022, #95 in FY2024 and not on the FY2025 list; down 9 since FY2022.
67	Veritas Management Group, Inc. Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$547,179	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, #56 in FY2024 and #60 in FY2025; up 1 since FY2022.
68	State of Arizona 2 awardees, including Arizona Attorney Generals Office and Arizona Dept of Game and Fish Top agencies EEOC (Equal Employment Opportunity Commission) DOI (Department of the Interior)	$545,937	0.2%	Rank history: #70 in FY2021, #75 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
69	Rtca Inc. Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security)	$543,180	0.2%	Rank history: #42 in FY2021, #33 in FY2022, #42 in FY2024 and #37 in FY2025; down 36 since FY2022.
70	Open Geospatial Consortium Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce) DOT (Department of Transportation)	$541,773	0.2%	Rank history: #33 in FY2021, #40 in FY2022, #55 in FY2024 and not on the FY2025 list; down 30 since FY2022.
71	American Association of Blood Banks, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$514,924	0.2%	Rank history: #63 in FY2021, #72 in FY2022, #64 in FY2024 and #44 in FY2025; up 1 since FY2022.
72	Accreditation Council for Graduate Medical Education Top agencies USUHS (DOD Uniformed Services University of the Health Sciences) DHA (Defense Health Agency)	$514,029	0.2%	Rank history: #94 in FY2021, not on the FY2022 list, #71 in FY2024 and #62 in FY2025; up 32 since FY2022.
73	Maryland Commission on Civil Rights Top agencies EEOC (Equal Employment Opportunity Commission)	$471,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and not on the FY2025 list; new.
74	Association of American Medical Colleges Top agencies HHS (Department of Health and Human Services) USUHS (DOD Uniformed Services University of the Health Sciences) VA (Department of Veterans Affairs)	$458,228	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	American National Standards Institute Incorporated Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce) DOI (Department of the Interior)	$455,184	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and not on the FY2025 list; up 67 since FY2022.
76	South Carolina State of Through Human Affairs Commission South Carolina Top agencies EEOC (Equal Employment Opportunity Commission)	$444,800	0.2%	Rank history: #49 in FY2021, #70 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
77	Collaborative Community On Ophthalmic Imaging Foundation Top agencies HHS (Department of Health and Human Services)	$441,597	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
78	Mack Global LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Army (Department of the Army)	$426,025	0.2%	Rank history: #62 in FY2021, #77 in FY2022, #69 in FY2024 and #35 in FY2025; down 1 since FY2022.
79	International Association of Chiefs of Police Top agencies DOT (Department of Transportation) DOJ (Department of Justice) DHS (Department of Homeland Security)	$424,587	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 259 since FY2022.
80	Association of Public Health Laboratories, Inc. (The) Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$423,390	0.2%	Rank history: #21 in FY2021, #19 in FY2022, #61 in FY2024 and not on the FY2025 list; down 61 since FY2022.
81	National Association of School Nurses, Incorporated Top agencies HHS (Department of Health and Human Services)	$401,641	0.2%	Rank history: #83 in FY2021, #88 in FY2022, #90 in FY2024 and not on the FY2025 list; up 7 since FY2022.
82	State of Kansas Through Kansas Human Rights Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$401,420	0.2%	Rank history: #77 in FY2021, #86 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
83	The Arc of the District of Columbia Inc. Top agencies HHS (Department of Health and Human Services)	$396,714	0.2%	Rank history: #81 in FY2021, #93 in FY2022, #78 in FY2024 and not on the FY2025 list; up 10 since FY2022.
84	Intellectechs Inc. Top agencies Army (Department of the Army)	$395,255	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 184 since FY2022.
85	Military Operations Research Society, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$389,677	0.2%	Rank history: #80 in FY2021, #87 in FY2022, #72 in FY2024 and #43 in FY2025; up 2 since FY2022.
86	National Conference of Bar Examiners	$389,278	0.2%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #56 in FY2025; new.
87	Colonial School District Through Delaware Department of Labor Top agencies EEOC (Equal Employment Opportunity Commission)	$377,610	0.2%	Rank history: #82 in FY2021, #78 in FY2022, #77 in FY2024 and not on the FY2025 list; down 9 since FY2022.
88	Executive Office of the Through Executive Office of the State of Utah Top agencies EEOC (Equal Employment Opportunity Commission)	$376,700	0.2%	Rank history: #79 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
89	XL Associates, Inc. Top agencies USAID (US Agency for International Development)	$372,270	0.1%	Rank history: #3 in FY2021, #11 in FY2022, #29 in FY2024 and not on the FY2025 list; down 78 since FY2022.
90	Leota Professional Resources, LLC Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$362,813	0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #83 in FY2024 and #79 in FY2025; down 14 since FY2022.
91	Air Force Sergeants Association Top agencies USAF (Department of the Air Force)	$351,000	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, #74 in FY2024 and not on the FY2025 list; unchanged since FY2022.
92	Radiomovil Dipsa S.a. DE C.V. Through America Movil Peru Sac Top agencies DOS (Department of State)	$346,689	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
93	Montgomery Area Chamber of Commerce Top agencies USAF (Department of the Air Force)	$345,600	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 18 since FY2022.
94	The National Registry of Emergency Medical Technicians Inc. Top agencies USAF (Department of the Air Force)	$337,920	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 343 since FY2022.
95	Hydropower Research Institute Top agencies DOI (Department of the Interior)	$320,000	0.1%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2024 list and #90 in FY2025; down 11 since FY2022.
96	RMG and Associates Top agencies Treasury (Department of the Treasury)	$313,892	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	American Astronomical Society Top agencies NASA (National Aeronautics and Space Administration) NSF (National Science Foundation) Smithsonian (Smithsonian Institution)	$312,262	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	State of Indiana Through Civil Rights Commission Indiana Top agencies EEOC (Equal Employment Opportunity Commission)	$307,800	0.1%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2024 and not on the FY2025 list; up 7 since FY2022.
99	C & H Precision Weapons, LLC Top agencies DOJ (Department of Justice)	$306,531	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	BBC Media Action Top agencies DOS (Department of State)	$299,968	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 1,021 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 813

Code	Net obligations	Largest contractor
8139 Business, Professional, Labor, Political, and Similar Organizations	$124,329,378	General Dynamics Corporation
8133 Social Advocacy Organizations	$75,721,914	Tetra Tech, Inc.
8131 Religious Organizations	$27,420,948	Aveco Holding AG
8134 Civic and Social Organizations	$879,194	Hispanic Association of Colleges & Universities

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 $251 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. 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 813 contractors in FY2023?

1. General Dynamics Corporation ($22.8M), 2. Joint Commission On Accreditation of Healthcare Organizations ($17.2M), 3. Tetra Tech, Inc. ($15.8M), 4. The Texas A&M University System ($15.2M), 5. Aveco Holding AG ($10.8M), 6. West Virginia Medical Institute Inc. ($8.92M), 7. Michigan Peer Review Organization ($3.63M), 8. Liberty Island Holdings II, LLC ($3.6M), 9. Naval Academy Athletic Association ($3.52M), 10. North American Association of Central Cancer Registries Inc. ($3.35M).

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