Top 100 Contractors in NAICS 8139: Business, Professional, Labor, Political, and Similar Organizations, FY2022

Name: Top 100 Contractors in NAICS 8139: Business, Professional, Labor, Political, and Similar Organizations, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 56% of FY2022 NAICS 8139 contract dollars

Contract obligations: $132,736,055 Net of deobligations, by contracts coded NAICS 8139 or a code under it
Contractors: 433 Parent companies with an obligation
Largest contractor: General Dynamics Corporation $32.1 million, 22.8% 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 Army (Department of the Army) DHA (Defense Health Agency) USAF (Department of the Air Force)	$32,081,782	22.8%	Rank history: not on the FY2021 list, #1 in FY2023, #1 in FY2024 and #1 in FY2025; new.
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)	$18,071,249	12.8%	Rank history: #1 in FY2021, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since FY2021.
3	West Virginia Medical Institute Inc. Through Quality Insights, Inc. Top agencies VA (Department of Veterans Affairs)	$9,702,097	6.9%	Rank history: #2 in FY2021, #3 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
4	Institute of Transportation Engineers, Inc. Top agencies DOT (Department of Transportation)	$4,108,435	2.9%	Rank history: #41 in FY2021, #8 in FY2023, #11 in FY2024 and #18 in FY2025; up 37 since FY2021.
5	Naval Academy Athletic Association Top agencies Navy (Department of the Navy)	$3,448,928	2.4%	Rank history: #5 in FY2021, #5 in FY2023, #55 in FY2024 and #4 in FY2025; unchanged since FY2021.
6	XL Associates, Inc. Top agencies USAID (US Agency for International Development)	$2,935,560	2.1%	Rank history: #3 in FY2021, #51 in FY2023, #17 in FY2024 and not on the FY2025 list; down 3 since FY2021.
7	North American Association of Central Cancer Registries Inc. Top agencies HHS (Department of Health and Human Services)	$2,568,177	1.8%	Rank history: #6 in FY2021, #6 in FY2023, #6 in FY2024 and #7 in FY2025; down 1 since FY2021.
8	American College of Surgeons Top agencies DHA (Defense Health Agency) VA (Department of Veterans Affairs) Army (Department of the Army)	$2,001,158	1.4%	Rank history: #13 in FY2021, #19 in FY2023, #48 in FY2024 and #10 in FY2025; up 5 since FY2021.
9	Nevada State Veterans Home Through Nevada System of Higher Education Top agencies Commerce (Department of Commerce)	$1,924,933	1.4%	Rank history: #10 in FY2021, #12 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
10	Association of Public Health Laboratories, Inc. (The) Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,866,875	1.3%	Rank history: #15 in FY2021, #47 in FY2023, #36 in FY2024 and not on the FY2025 list; up 5 since FY2021.
11	Michigan Peer Review Organization Top agencies VA (Department of Veterans Affairs)	$1,754,855	1.2%	Rank history: #12 in FY2021, #4 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
12	American Association for the Advancement of Science Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) DOS (Department of State)	$1,578,875	1.1%	Rank history: #8 in FY2021, #9 in FY2023, #14 in FY2024 and #22 in FY2025; down 4 since FY2021.
13	Sae International Top agencies DOT (Department of Transportation)	$1,575,216	1.1%	Rank history: #7 in FY2021, #13 in FY2023, #12 in FY2024 and #5 in FY2025; down 6 since FY2021.
14	American Board of Family Medicine Inc. Top agencies HHS (Department of Health and Human Services)	$1,548,115	1.1%	Rank history: #14 in FY2021, #14 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
15	National Association for Public Health Statistics and Information Systems, Inc. Top agencies HHS (Department of Health and Human Services) SSA (Social Security Administration) DCSA (Defense Counterintelligence and Security Agency)	$1,521,404	1.1%	Rank history: #9 in FY2021, #15 in FY2023, #8 in FY2024 and #17 in FY2025; down 6 since FY2021.
16	Commission On Accreditation of Rehabilitation Facilities Top agencies VA (Department of Veterans Affairs)	$1,450,549	1.0%	Rank history: #4 in FY2021, #16 in FY2023, #5 in FY2024 and #6 in FY2025; down 12 since FY2021.
17	Academy Health Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$1,254,278	0.9%	Rank history: #39 in FY2021, #32 in FY2023, #16 in FY2024 and #33 in FY2025; up 22 since FY2021.
18	Reed Elsevier Inc. Through Elsevier B.V. Top agencies Navy (Department of the Navy)	$1,245,804	0.9%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
19	Rtca Inc. Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration) DHS (Department of Homeland Security)	$1,198,130	0.8%	Rank history: #25 in FY2021, #39 in FY2023, #26 in FY2024 and #24 in FY2025; up 6 since FY2021.
20	Provider Resources, LLC Top agencies VA (Department of Veterans Affairs)	$1,162,799	0.8%	Rank history: #19 in FY2021, #11 in FY2023, #7 in FY2024 and not on the FY2025 list; down 1 since FY2021.
21	Maximus Inc. Through Maximus Federal Services, Inc. Top agencies VA (Department of Veterans Affairs)	$1,133,428	0.8%	Rank history: #23 in FY2021, #10 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
22	Cornell University 2 awardees Top agencies Commerce (Department of Commerce)	$1,088,067	0.8%	Rank history: #22 in FY2021, #18 in FY2023, #13 in FY2024 and #9 in FY2025; unchanged since FY2021.
23	Lumetra Healthcare Solutions Top agencies VA (Department of Veterans Affairs)	$1,071,512	0.8%	Rank history: #16 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
24	Open Geospatial Consortium Inc. Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) DOI (Department of the Interior)	$949,511	0.7%	Rank history: #20 in FY2021, #40 in FY2023, #33 in FY2024 and #86 in FY2025; down 4 since FY2021.
25	The Texas A&M University System 2 awardees, including Texas A&M Transportation Institute and Texas A & M University Top agencies Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$925,527	0.7%	Rank history: #21 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
26	Accreditation Association for Ambulatory Health Care, Inc. Top agencies DOJ (Department of Justice) HHS (Department of Health and Human Services)	$894,008	0.6%	Rank history: #32 in FY2021, not on the FY2023 list, #44 in FY2024 and #35 in FY2025; up 6 since FY2021.
27	University of Nebraska Through Board of Regents of the University of Nebraska Top agencies Commerce (Department of Commerce)	$809,282	0.6%	Rank history: #24 in FY2021, #21 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
28	Capital Factory Properties LLC Top agencies Army (Department of the Army)	$808,462	0.6%	Rank history: #26 in FY2021, #20 in FY2023, #15 in FY2024 and #12 in FY2025; down 2 since FY2021.
29	Juice Consulting LLC Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army)	$799,118	0.6%	Rank history: #63 in FY2021, #61 in FY2023, #21 in FY2024 and #50 in FY2025; up 34 since FY2021.
30	University of North Carolina at Chapel Hill Top agencies Commerce (Department of Commerce)	$776,408	0.6%	Rank history: #30 in FY2021, #23 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
31	Purdue University Top agencies Commerce (Department of Commerce)	$776,353	0.6%	Rank history: #34 in FY2021, #22 in FY2023, #19 in FY2024 and #19 in FY2025; up 3 since FY2021.
32	Setda Top agencies ED (Department of Education)	$746,351	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Nevada System of Higher Education Top agencies Commerce (Department of Commerce)	$718,909	0.5%	Rank history: not on the FY2021 list, not on the FY2023 list, #4 in FY2024 and #8 in FY2025; new.
34	National Academy of Sciences Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) NASA (National Aeronautics and Space Administration)	$646,750	0.5%	Rank history: #29 in FY2021, #28 in FY2023, #27 in FY2024 and not on the FY2025 list; down 5 since FY2021.
35	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) DHS (Department of Homeland Security)	$638,160	0.5%	Rank history: #31 in FY2021, #38 in FY2023, #52 in FY2024 and not on the FY2025 list; down 4 since FY2021.
36	American Hospital Association Top agencies VA (Department of Veterans Affairs)	$616,855	0.4%	Rank history: #28 in FY2021, #26 in FY2023, #25 in FY2024 and #16 in FY2025; down 8 since FY2021.
37	Deloitte Consulting LLP Top agencies DOE (Department of Energy)	$602,715	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
38	American Bureau of Shipping Top agencies Army (Department of the Army) DOT (Department of Transportation)	$590,953	0.4%	Rank history: #52 in FY2021, #81 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2021.
39	Association of American Medical Colleges Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) USUHS (DOD Uniformed Services University of the Health Sciences)	$568,262	0.4%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
40	The Conference Board, Inc. Top agencies DHRA (Defense Human Resources Activity) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$566,997	0.4%	Rank history: #35 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
41	International Association of Fire Chiefs, Inc. Top agencies DHS (Department of Homeland Security)	$565,774	0.4%	Rank history: #54 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
42	American Association of Blood Banks, Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$495,169	0.4%	Rank history: #37 in FY2021, #41 in FY2023, #38 in FY2024 and #30 in FY2025; down 5 since FY2021.
43	SIA Partners U.S. Inc. Top agencies Treasury (Department of the Treasury)	$482,816	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
44	The Linux Foundation Top agencies Navy (Department of the Navy)	$431,000	0.3%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; down 26 since FY2021.
45	Haseya LLC Top agencies USAGM (US Agency for Global Media)	$407,000	0.3%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; up 36 since FY2021.
46	Hydropower Research Institute Top agencies DOI (Department of the Interior)	$400,000	0.3%	Rank history: #69 in FY2021, #56 in FY2023, not on the FY2024 list and #47 in FY2025; up 23 since FY2021.
47	American College of Medical Toxicology Incorporated Top agencies HHS (Department of Health and Human Services)	$390,000	0.3%	Rank history: #50 in FY2021, #37 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
48	University of Texas System 3 awardees, including The University of Texas Health Science Center At San Antonio, University of Texas At Austin and The Univeristy of Texas M.d. Anderson Cancer Center Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) Army (Department of the Army)	$386,545	0.3%	Rank history: #65 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2021.
49	Military Operations Research Society, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$382,036	0.3%	Rank history: #43 in FY2021, #49 in FY2023, #43 in FY2024 and #29 in FY2025; down 6 since FY2021.
50	National Association of School Nurses, Incorporated Top agencies HHS (Department of Health and Human Services)	$379,539	0.3%	Rank history: #44 in FY2021, #48 in FY2023, #49 in FY2024 and not on the FY2025 list; down 6 since FY2021.
51	Gartner, Inc. Top agencies DOT (Department of Transportation) EPA (Environmental Protection Agency)	$372,157	0.3%	Rank history: #75 in FY2021, #35 in FY2023, #28 in FY2024 and #67 in FY2025; up 24 since FY2021.
52	Society of General Internal Medicine Top agencies VA (Department of Veterans Affairs)	$372,000	0.3%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
53	Air Force Sergeants Association Top agencies USAF (Department of the Air Force)	$359,900	0.3%	Rank history: #67 in FY2021, #52 in FY2023, #45 in FY2024 and not on the FY2025 list; up 14 since FY2021.
54	Standards Coordinating Body for Gene Cell & Regenerative Medicines Top agencies Commerce (Department of Commerce)	$359,351	0.3%	Rank history: #45 in FY2021, #62 in FY2023, #98 in FY2024 and not on the FY2025 list; down 9 since FY2021.
55	Cumberland Valley Volunteer Firefighters Association Top agencies DHS (Department of Homeland Security)	$273,900	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 76 since FY2021.
56	Accreditation Council for Graduate Medical Education Top agencies USUHS (DOD Uniformed Services University of the Health Sciences)	$273,400	0.2%	Rank history: #51 in FY2021, #42 in FY2023, #42 in FY2024 and #36 in FY2025; down 5 since FY2021.
57	American Association of State Highway & Transportation Officials Top agencies DOT (Department of Transportation) Army (Department of the Army)	$270,051	0.2%	Rank history: #76 in FY2021 and not on the FY2023–FY2025 lists; up 19 since FY2021.
58	National Contract Management Association Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) HHS (Department of Health and Human Services)	$263,484	0.2%	Rank history: #73 in FY2021, #77 in FY2023, #51 in FY2024 and not on the FY2025 list; up 15 since FY2021.
59	Challenge America Top agencies VA (Department of Veterans Affairs)	$260,000	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #35 in FY2024 and #28 in FY2025; up 62 since FY2021.
60	Montgomery Area Chamber of Commerce Top agencies USAF (Department of the Air Force)	$252,000	0.2%	Rank history: not on the FY2021 list, #54 in FY2023, not on the FY2024 list and #87 in FY2025; new.
61	Health Enhancement Research Organization, Inc. Top agencies HHS (Department of Health and Human Services)	$249,610	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
62	Vlogic Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$249,038	0.2%	Rank history: #55 in FY2021, #65 in FY2023, #59 in FY2024 and #39 in FY2025; down 7 since FY2021.
63	Acog Foundation Top agencies HHS (Department of Health and Human Services)	$247,757	0.2%	Rank history: #80 in FY2021, #64 in FY2023, #54 in FY2024 and not on the FY2025 list; up 17 since FY2021.
64	The Smithers Group Inc Through Smithers Quality Assessments, Inc. Top agencies DOJ (Department of Justice)	$246,325	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
65	National Society of Black Engineers Top agencies NASA (National Aeronautics and Space Administration) DOS (Department of State) Navy (Department of the Navy)	$221,000	0.2%	Rank history: #83 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2021.
66	Ceati International Inc. Top agencies DOI (Department of the Interior) DOE (Department of Energy) Army (Department of the Army)	$219,375	0.2%	Rank history: #58 in FY2021, #66 in FY2023, #62 in FY2024 and #40 in FY2025; down 8 since FY2021.
67	Healthcare Information and Management Systems Society Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$214,995	0.2%	Rank history: #48 in FY2021, #68 in FY2023, #93 in FY2024 and #61 in FY2025; down 19 since FY2021.
68	PQA Inc. Top agencies HHS (Department of Health and Human Services)	$214,200	0.2%	Rank history: #64 in FY2021, #70 in FY2023, #64 in FY2024 and not on the FY2025 list; down 4 since FY2021.
69	National Council for Prescription Drug Programs Inc. Top agencies HHS (Department of Health and Human Services) DOL (Department of Labor)	$210,429	0.1%	Rank history: #60 in FY2021, #86 in FY2023, #83 in FY2024 and #59 in FY2025; down 9 since FY2021.
70	Hiteshhurkchand LLC Top agencies USAID (US Agency for International Development)	$201,114	0.1%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; new.
71	American College of Emergency Physicians Top agencies HHS (Department of Health and Human Services)	$200,000	0.1%	Rank history: #57 in FY2021, #72 in FY2023, #60 in FY2024 and #46 in FY2025; down 14 since FY2021.
72	State of California Controllers Office Through University of California, Davis Top agencies EPA (Environmental Protection Agency)	$200,000	0.1%	Rank history: not on the FY2021 list, #73 in FY2023 and not on the FY2024–FY2025 lists; up 171 since FY2021.
73	International Association of Firefighters Top agencies DHS (Department of Homeland Security)	$199,861	0.1%	Rank history: #70 in FY2021, not on the FY2023 list, #63 in FY2024 and not on the FY2025 list; down 3 since FY2021.
74	American National Standards Institute Incorporated Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$194,988	0.1%	Rank history: #91 in FY2021, #44 in FY2023, #39 in FY2024 and #77 in FY2025; up 17 since FY2021.
75	Global Carbon Capture and Storage Institute Ltd Top agencies DOE (Department of Energy)	$185,000	0.1%	Rank history: not on the FY2021 list, #79 in FY2023, #75 in FY2024 and #56 in FY2025; new.
76	Solomon Lehelt Top agencies DFC (International Development Finance Corporation)	$176,526	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 353 since FY2021.
77	American College of Preventive Medicine, Inc. (The) Top agencies VA (Department of Veterans Affairs)	$172,323	0.1%	Rank history: #46 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
78	KSJ Resources LLC Top agencies DOS (Department of State)	$162,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 112 since FY2021.
79	Nhcaa Institute for Health Care Fraud Prevention, Inc. Top agencies DOJ (Department of Justice)	$160,050	0.1%	Rank history: #68 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
80	Mgma-Acmpe Top agencies VA (Department of Veterans Affairs)	$157,500	0.1%	Rank history: #89 in FY2021, #78 in FY2023, #70 in FY2024 and #43 in FY2025; up 9 since FY2021.
81	Women In Fire Top agencies DHS (Department of Homeland Security)	$156,004	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
82	American Society of Health-System Pharmacists Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$153,458	0.1%	Rank history: #79 in FY2021, #74 in FY2023, #73 in FY2024 and #51 in FY2025; down 3 since FY2021.
83	Ihlenfeld Brian L Top agencies DHA (Defense Health Agency)	$151,840	0.1%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
84	University System of New Hampshire Top agencies DHS (Department of Homeland Security)	$150,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	S.sheinin & Company Inc. Top agencies SEC (Securities and Exchange Commission)	$140,000	0.1%	Rank history: not on the FY2021 list, #99 in FY2023 and not on the FY2024–FY2025 lists; new.
86	Partnership for Public Service Inc. Top agencies Treasury (Department of the Treasury) DOI (Department of the Interior) NASA (National Aeronautics and Space Administration)	$137,083	0.1%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; down 33 since FY2021.
87	National Cancer Registrars Association Top agencies HHS (Department of Health and Human Services)	$136,838	0.1%	Rank history: not on the FY2021 list, #91 in FY2023, #100 in FY2024 and #68 in FY2025; new.
88	Association of Small Business Development Centers Top agencies SBA (Small Business Administration)	$133,508	0.1%	Rank history: not on the FY2021 list, #90 in FY2023, #88 in FY2024 and not on the FY2025 list; new.
89	The American Society of Human Genetics, Incorporated Top agencies HHS (Department of Health and Human Services)	$133,200	0.1%	Rank history: not on the FY2021 list, #75 in FY2023, #22 in FY2024 and #13 in FY2025; up 48 since FY2021.
90	Society of Photo-Optical Instrumentation Engineers Top agencies NASA (National Aeronautics and Space Administration) Smithsonian (Smithsonian Institution)	$125,309	0.1%	Rank history: #86 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
91	American Association for Laboratory Accreditation, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army) VA (Department of Veterans Affairs)	$123,015	0.1%	Rank history: #95 in FY2021, #92 in FY2023, #69 in FY2024 and #42 in FY2025; up 4 since FY2021.
92	Global Leadership Exchange, Inc. Top agencies HHS (Department of Health and Human Services)	$120,870	0.1%	Rank history: #97 in FY2021, not on the FY2023 list, #71 in FY2024 and #48 in FY2025; up 5 since FY2021.
93	American Medical Association Top agencies HHS (Department of Health and Human Services)	$119,049	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #72 in FY2024 and #52 in FY2025; new.
94	Sinclair Broadcast Group Inc. Through Politico, LLC Top agencies DHS (Department of Homeland Security)	$116,546	0.1%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; down 35 since FY2021.
95	International Electrical Testing Association Top agencies Army (Department of the Army)	$114,828	0.1%	Rank history: not on the FY2021 list, #87 in FY2023, #74 in FY2024 and #62 in FY2025; up 6 since FY2021.
96	Solomon Advisory Services, LLC Top agencies SEC (Securities and Exchange Commission)	$112,500	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 24 since FY2021.
97	Alliance for Telecommunications Industry Solutions Inc. Top agencies Commerce (Department of Commerce) DOJ (Department of Justice) OSD (Office of the Secretary of Defense)	$109,569	0.1%	Rank history: #82 in FY2021, #96 in FY2023, #90 in FY2024 and #53 in FY2025; down 15 since FY2021.
98	University Corporation for Advanced Internet Development Top agencies Commerce (Department of Commerce) DOI (Department of the Interior) USUHS (DOD Uniformed Services University of the Health Sciences)	$109,496	0.1%	Rank history: #66 in FY2021, #83 in FY2023, #65 in FY2024 and #54 in FY2025; down 32 since FY2021.
99	American Indian Science and Engineering Society Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army) NSF (National Science Foundation)	$105,500	0.1%	Rank history: not on the FY2021 list, #97 in FY2023, #76 in FY2024 and not on the FY2025 list; up 26 since FY2021.
100	Four Corners Diabetes & Medication Counseling Inc. Top agencies HHS (Department of Health and Human Services)	$105,080	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.

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100 of 433 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 8139

Code	Net obligations	Largest contractor
81392 Professional Organizations	$122,568,634	General Dynamics Corporation
81391 Business Associations	$5,188,023	Open Geospatial Consortium Inc.

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 $141 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 8139 contractors in FY2022?

1. General Dynamics Corporation ($32.1M), 2. Joint Commission On Accreditation of Healthcare Organizations ($18.1M), 3. West Virginia Medical Institute Inc. ($9.7M), 4. Institute of Transportation Engineers, Inc. ($4.11M), 5. Naval Academy Athletic Association ($3.45M), 6. XL Associates, Inc. ($2.94M), 7. North American Association of Central Cancer Registries Inc. ($2.57M), 8. American College of Surgeons ($2M), 9. Nevada State Veterans Home ($1.92M), 10. Association of Public Health Laboratories, Inc. (The) ($1.87M).

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