Top 29 Contractors in NAICS 81399: Other Similar Organizations (except Business, Professional, Labor, and Political Organizations), FY2024

Name: Top 29 Contractors in NAICS 81399: Other Similar Organizations (except Business, Professional, Labor, and Political Organizations), FY2024
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Code page on GovTribe

The top 10 won 74% of FY2024 NAICS 81399 contract dollars

Contract obligations: $1,353,451 Net of deobligations, by contracts coded NAICS 81399 or a code under it
Contractors: 31 Parent companies with an obligation
Largest contractor: Challenge America $557 thousand, 34.1% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 29 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Challenge America Top agencies VA (Department of Veterans Affairs)	$557,000	34.1%	Rank history: #3 in FY2021; returned, not ranked in FY2023 but on an earlier list.
2	Naval Academy Athletic Association Top agencies Navy (Department of the Navy)	$262,080	16.1%	Rank history: #1 in FY2021; down 1 since FY2023.
3	American Indian Higher Education Consortium Top agencies DOI (Department of the Interior)	$89,502	5.5%	Rank history: #14 in FY2021; returned, not ranked in FY2023 but on an earlier list.
4	Open Geospatial Consortium Inc. Top agencies DOI (Department of the Interior)	$60,000	3.7%	Rank history: #4 in FY2021; up 1 since FY2023.
5	Mobilitydata USA Inc. Top agencies DOT (Department of Transportation)	$50,000	3.1%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
6	Helena Indian Alliance Top agencies VA (Department of Veterans Affairs)	$46,380	2.8%	Rank history: #7 in FY2021; down 2 since FY2023.
7	George Tyler Crock Top agencies Smithsonian (Smithsonian Institution)	$45,000	2.8%	Rank history: #12 in FY2021; returned, not ranked in FY2023 but on an earlier list.
8	Independent Interscholastic Athletic Association of Guam Top agencies DODEA (Department of Defense Education Activity)	$33,506	2.1%	Rank history: #13 in FY2021; up 2 since FY2023.
9	April L Chandler Top agencies Smithsonian (Smithsonian Institution)	$30,000	1.8%	Rank history: not on the FY2021 list; up 12 since FY2023.
10	Kenneth C Erickson Top agencies DOJ (Department of Justice)	$29,500	1.8%	Rank history: not on the FY2021 list; up 4 since FY2023.
11	Parc Community Partnership Foundation Top agencies USAF (Department of the Air Force)	$20,917	1.3%	Rank history: #2 in FY2021; down 8 since FY2023.
12	ENO Transportation Foundation Inc. Top agencies DOT (Department of Transportation)	$20,900	1.3%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
13	Items of Value, Inc. Top agencies EOP (Executive Office of the President)	$20,000	1.2%	Rank history: not on the FY2021 list; down 4 since FY2023.
14	Ctak Solutions LLC Top agencies DOJ (Department of Justice)	$14,800	0.9%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
15	Pollen Environmental, Llc. Top agencies EPA (Environmental Protection Agency)	$12,960	0.8%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
16	GS1 US, Inc. Top agencies VA (Department of Veterans Affairs)	$11,500	0.7%	Rank history: not on the FY2021 list; down 1 since FY2023.
17	Instant Hardware Delivery LLC Top agencies Smithsonian (Smithsonian Institution)	$11,338	0.7%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
18	Jedec Solid State Technology Association Top agencies Navy (Department of the Navy)	$10,810	0.7%	Rank history: #20 in FY2021; down 2 since FY2023.
19	Ansi National Accreditation Board LLC Top agencies HHS (Department of Health and Human Services)	$10,050	0.6%	Rank history: #19 in FY2021; down 13 since FY2023.
20	Michael Johnson Top agencies DOI (Department of the Interior)	$9,486	0.6%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
21	Academy of Nutrition & Dietetics Top agencies VA (Department of Veterans Affairs)	$7,580	0.5%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
22	Alliance Center East Association Top agencies DOJ (Department of Justice)	$7,152	0.4%	Rank history: #23 in FY2021; down 2 since FY2023.
23	GPC Consolidated Reporting Top agencies USDA (Department of Agriculture)	$6,723	0.4%	Rank history: #15 in FY2021; down 4 since FY2023.
24	Orange County Rehabilitative and Developmental Services Inc. Top agencies Navy (Department of the Navy)	$6,575	0.4%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
25	Teton Valley Highlands Architectural Committee Top agencies DOI (Department of the Interior)	$6,472	0.4%	Rank history: not on the FY2021 list; down 8 since FY2023.
26	Wideopenwest Inc. Through Knology, Inc. Top agencies DOJ (Department of Justice)	$3,649	0.2%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
27	Space Exploration Technologies Corp. Top agencies DHS (Department of Homeland Security)	$3,000	0.2%	Rank history: not on the FY2021 list; down 5 since FY2023.
28	University of Pittsburgh - of the Commonwealth System of Higher Education Top agencies VA (Department of Veterans Affairs)	$1,647	0.1%	Rank history: not on the FY2021 list; new, not ranked in FY2023.
29	Premio International Services, Inc. Top agencies HHS (Department of Health and Human Services)	$500	<0.1%	Rank history: #30 in FY2021; down 6 since FY2023.

Show 4 more

29 of 31 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 81399

Code	Net obligations	Largest contractor
813990 Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)	$1,353,451	Challenge America

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 $1.63 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 81399 contractors in FY2024?

1. Challenge America ($557K), 2. Naval Academy Athletic Association ($262K), 3. American Indian Higher Education Consortium ($89.5K), 4. Open Geospatial Consortium Inc. ($60K), 5. Mobilitydata USA Inc. ($50K), 6. Helena Indian Alliance ($46.4K), 7. George Tyler Crock ($45K), 8. Independent Interscholastic Athletic Association of Guam ($33.5K), 9. April L Chandler ($30K), 10. Kenneth C Erickson ($29.5K).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login