Top 100 Contractors in NAICS 81331: Social Advocacy Organizations, FY2025

Name: Top 100 Contractors in NAICS 81331: Social Advocacy Organizations, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 55% of FY2025 NAICS 81331 contract dollars

Contract obligations: $31,566,040 Net of deobligations, by contracts coded NAICS 81331 or a code under it
Contractors: 200 Parent companies with an obligation
Largest contractor: Tetra Tech, Inc. $5 million, 14.3% 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	Tetra Tech, Inc. Through Ard, Inc. Top agencies USAID (US Agency for International Development)	$5,000,000	14.3%	Rank history: #3 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	National Disability Rights Network Inc. Top agencies HHS (Department of Health and Human Services)	$2,906,683	8.3%	Rank history: #4 in FY2021, #6 in FY2022, #4 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Civil Rights Commission Ohio Top agencies EEOC (Equal Employment Opportunity Commission)	$2,740,840	7.8%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; up 3 since FY2024.
4	Civil Rights Department Top agencies EEOC (Equal Employment Opportunity Commission)	$2,332,875	6.7%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 1 since FY2024.
5	Human Rights New York State Division Of Top agencies EEOC (Equal Employment Opportunity Commission)	$1,660,000	4.7%	Rank history: not on the FY2021 list, #7 in FY2022, not on the FY2023 list and #4 in FY2024; down 1 since FY2024.
6	Florida Commission on Human Relations Top agencies EEOC (Equal Employment Opportunity Commission)	$1,052,050	3.0%	Rank history: not on the FY2021–FY2024 lists; new.
7	Human Rights & Opportunities Connecticut Commission On Top agencies EEOC (Equal Employment Opportunity Commission)	$1,017,045	2.9%	Rank history: not on the FY2021–FY2024 lists; new.
8	Texas Workforce Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$863,940	2.5%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2024; up 3 since FY2024.
9	Department of Civil Rights Michigan Top agencies EEOC (Equal Employment Opportunity Commission)	$846,050	2.4%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 12 since FY2024.
10	Colorado Department of Regulatory Agencies Top agencies EEOC (Equal Employment Opportunity Commission)	$782,735	2.2%	Rank history: #19 in FY2021, #19 in FY2022 and not on the FY2023–FY2024 lists; returned.
11	Iowa Department of Executive Office Top agencies EEOC (Equal Employment Opportunity Commission)	$561,020	1.6%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2023–FY2024 lists; returned.
12	Arizona Attorney Generals Office Top agencies EEOC (Equal Employment Opportunity Commission)	$486,000	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
13	Labor & Industries Oregon Bureau Of Top agencies EEOC (Equal Employment Opportunity Commission)	$479,300	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
14	Center for Coastal Studies, Inc. Top agencies Commerce (Department of Commerce)	$458,551	1.3%	Rank history: not on the FY2021–FY2024 lists; new.
15	Human Affairs Commission South Carolina Top agencies EEOC (Equal Employment Opportunity Commission)	$446,000	1.3%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 11 since FY2024.
16	Executive Office of the State of Utah Top agencies EEOC (Equal Employment Opportunity Commission)	$427,750	1.2%	Rank history: not on the FY2021 list, #34 in FY2022, not on the FY2023 list and #31 in FY2024; up 15 since FY2024.
17	New Jersey Department of Law & Public Safety Top agencies EEOC (Equal Employment Opportunity Commission)	$412,590	1.2%	Rank history: not on the FY2021 list, #40 in FY2022 and not on the FY2023–FY2024 lists; returned.
18	Kansas Human Rights Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$379,745	1.1%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; up 9 since FY2024.
19	Commission On Human Rights, Idaho Top agencies EEOC (Equal Employment Opportunity Commission)	$371,400	1.1%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; up 15 since FY2024.
20	Delaware Department of Labor Top agencies EEOC (Equal Employment Opportunity Commission)	$359,775	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
21	Alaska Nannut Co-Management Council Top agencies DOI (Department of the Interior)	$340,562	1.0%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 30 since FY2024.
22	National Crime Prevention Council Inc. Top agencies Commerce (Department of Commerce)	$270,525	0.8%	Rank history: #10 in FY2021, #8 in FY2022, #7 in FY2023 and not on the FY2024 list; returned.
23	The New York Committee for Occupational Safety & Health, Inc. Top agencies HHS (Department of Health and Human Services)	$250,000	0.7%	Rank history: #71 in FY2021, #49 in FY2022, #42 in FY2023 and #44 in FY2024; up 21 since FY2024.
24	Research Triangle Institute Top agencies HHS (Department of Health and Human Services)	$249,243	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
25	Hispanic Federation Inc. Top agencies HHS (Department of Health and Human Services)	$244,000	0.7%	Rank history: #76 in FY2021, #56 in FY2022, #53 in FY2023 and #50 in FY2024; up 25 since FY2024.
26	Puerto Rico Departement of Labor Top agencies EEOC (Equal Employment Opportunity Commission)	$238,550	0.7%	Rank history: #40 in FY2021 and not on the FY2022–FY2024 lists; returned.
27	Human Rights Commission Maine Top agencies EEOC (Equal Employment Opportunity Commission)	$236,550	0.7%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2023–FY2024 lists; returned.
28	Peaceable Primate Sanctuary Inc. Top agencies HHS (Department of Health and Human Services)	$231,000	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
29	Living Shoreline Solutions, Inc. Top agencies USAF (Department of the Air Force)	$228,210	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
30	Duran Environmental Consulting, LLC Top agencies Army (Department of the Army)	$196,800	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
31	Florida Department of Environmental Protection Top agencies NASA (National Aeronautics and Space Administration)	$190,783	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
32	New Hampshire Commission for Human Rights Top agencies EEOC (Equal Employment Opportunity Commission)	$186,215	0.5%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 23 since FY2024.
33	Verite Inc. Top agencies DOS (Department of State)	$185,452	0.5%	Rank history: #68 in FY2021, #35 in FY2022, #41 in FY2023 and not on the FY2024 list; returned.
34	Human Rights Commission, Washington State Top agencies EEOC (Equal Employment Opportunity Commission)	$182,600	0.5%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 5 since FY2024.
35	Invasive Plant Control Inc. Top agencies USAF (Department of the Air Force)	$160,000	0.5%	Rank history: not on the FY2021–FY2022 lists, #55 in FY2023 and not on the FY2024 list; returned.
36	Nimco Inc Top agencies USAF (Department of the Air Force)	$155,000	0.4%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 18 since FY2024.
37	State of Rhode Island Through Human Rights Rhode Island Commission For Top agencies EEOC (Equal Employment Opportunity Commission)	$153,550	0.4%	Rank history: #60 in FY2021, #66 in FY2022, #66 in FY2023 and #68 in FY2024; up 31 since FY2024.
38	Hardscrabble Ranch Operations, LLC Top agencies DOI (Department of the Interior)	$150,000	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
39	Gulf of Maine Lobster Foundation, Inc. Top agencies Commerce (Department of Commerce)	$149,655	0.4%	Rank history: not on the FY2021 list, #55 in FY2022, #97 in FY2023 and #29 in FY2024; down 10 since FY2024.
40	The Fields Group, LLC Top agencies GSA (General Services Administration)	$117,294	0.3%	Rank history: #64 in FY2021, #73 in FY2022, #67 in FY2023 and #63 in FY2024; up 23 since FY2024.
41	Phoenix Bird Control Services Limited Top agencies USAF (Department of the Air Force)	$110,112	0.3%	Rank history: #78 in FY2021, #83 in FY2022, #71 in FY2023 and #72 in FY2024; up 31 since FY2024.
42	City of Philadelphia Top agencies EEOC (Equal Employment Opportunity Commission)	$100,260	0.3%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 40 since FY2024.
43	Oyster Recovery Partnership, Inc. Top agencies Commerce (Department of Commerce)	$99,700	0.3%	Rank history: #63 in FY2021, #74 in FY2022, #62 in FY2023 and #64 in FY2024; up 21 since FY2024.
44	Centro De Estudios Capacitacion Y Analisis En Derechos Humanos Top agencies Army (Department of the Army)	$96,700	0.3%	Rank history: not on the FY2021 list, #52 in FY2022, #69 in FY2023 and #45 in FY2024; up 1 since FY2024.
45	Water Education Foundation Top agencies DOI (Department of the Interior)	$90,000	0.3%	Rank history: #75 in FY2021, #86 in FY2022, #74 in FY2023 and #76 in FY2024; up 31 since FY2024.
46	Jaime Barros DA Silva Filho Top agencies USDA (Department of Agriculture)	$87,738	0.3%	Rank history: not on the FY2021 list, #89 in FY2022, #76 in FY2023 and #78 in FY2024; up 32 since FY2024.
47	County of Miami-Dade 2 awardees, including Miami-Dade County Top agencies EEOC (Equal Employment Opportunity Commission)	$84,295	0.2%	Rank history: #57 in FY2021, #81 in FY2022, not on the FY2023 list and #77 in FY2024; up 30 since FY2024.
48	Executive Office of the State of Louisiana Top agencies EEOC (Equal Employment Opportunity Commission)	$83,500	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
49	City of Fort Worth 2 awardees Top agencies EEOC (Equal Employment Opportunity Commission)	$82,970	0.2%	Rank history: #86 in FY2021, #87 in FY2022, #75 in FY2023 and #79 in FY2024; up 30 since FY2024.
50	Hawaii Wildlife Center Top agencies Navy (Department of the Navy)	$80,795	0.2%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and #81 in FY2024; up 31 since FY2024.
51	Field Engine Wildlife Research and Management LLC Top agencies DOI (Department of the Interior)	$80,094	0.2%	Rank history: #45 in FY2021, #95 in FY2022, #80 in FY2023 and #83 in FY2024; up 32 since FY2024.
52	Parliament LLC Top agencies DOI (Department of the Interior)	$78,783	0.2%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #80 in FY2024; up 28 since FY2024.
53	Tennessee Human Rights Commission Top agencies EEOC (Equal Employment Opportunity Commission)	$76,760	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
54	Mote Marine Laboratory, Inc. Top agencies DOI (Department of the Interior)	$75,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and not on the FY2024 list; returned.
55	State of Hawaii Department of Labor and Industrial Relations Top agencies EEOC (Equal Employment Opportunity Commission)	$64,685	0.2%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 14 since FY2024.
56	Sol3Carbon LLC Top agencies DOI (Department of the Interior)	$64,295	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
57	Housing Authority of City of Evansville Through City of Evansville Top agencies EEOC (Equal Employment Opportunity Commission)	$60,700	0.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 34 since FY2024.
58	Lviv Regional Civil Organization "Tustan" Top agencies Smithsonian (Smithsonian Institution)	$55,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
59	Attorney General Vermont Office Of Top agencies EEOC (Equal Employment Opportunity Commission)	$54,600	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Openstreetmap United States Inc. Top agencies DOI (Department of the Interior)	$51,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 36 since FY2024.
61	Walker's Lawncare LLC Top agencies Army (Department of the Army)	$50,655	0.1%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2023–FY2024 lists; returned.
62	Colorado Department of Natural Resources Top agencies DOI (Department of the Interior)	$50,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
63	The Peregrine Fund, Inc. Top agencies DOI (Department of the Interior)	$49,850	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
64	County of Montgomery Top agencies EEOC (Equal Employment Opportunity Commission)	$47,855	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
65	Amber ANN Morris Top agencies Army (Department of the Army)	$46,058	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
66	Max Mcgraw Wildlife Foundation Top agencies DOI (Department of the Interior)	$45,300	0.1%	Rank history: #55 in FY2021, #91 in FY2022, #84 in FY2023 and not on the FY2024 list; returned.
67	Crow Creek Sioux Tribe Top agencies Army (Department of the Army)	$42,510	0.1%	Rank history: not on the FY2021–FY2024 lists; up 41 since FY2024.
68	City of South Bend Top agencies EEOC (Equal Employment Opportunity Commission)	$40,855	0.1%	Rank history: #100 in FY2021, #70 in FY2022, #65 in FY2023 and #66 in FY2024; down 2 since FY2024.
69	City of Waterloo, Iowa Top agencies EEOC (Equal Employment Opportunity Commission)	$39,430	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	City of Austin Top agencies EEOC (Equal Employment Opportunity Commission)	$38,430	0.1%	Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
71	Oklahoma State Attorney General Top agencies EEOC (Equal Employment Opportunity Commission)	$38,330	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
72	Taylor Siddons Top agencies DOI (Department of the Interior)	$35,006	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	John Leonard Balthasar Top agencies DOI (Department of the Interior)	$34,532	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Pinellas County Office of Human Rights Top agencies EEOC (Equal Employment Opportunity Commission)	$33,450	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	Cheyenne and Arapaho Tribes Through Cheyenne Arapaho Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 50 since FY2024.
76	Gila River Indian Community Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Joanie E Meharry Top agencies Smithsonian (Smithsonian Institution)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Colorado River Indian Tribes Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 52 since FY2024.
79	Lower Brule Sioux Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
80	Blackfeet Tribe of the Blackfeet Indian Reservation Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	Omaha Tribe of Ne Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
82	Pueblo of Acoma Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
83	Southern Ute Indian Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Wind River Inter-Tribal Council Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 77 since FY2024.
85	The Hoopa Valley Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 77 since FY2024.
86	Confederated Tribes and Bands of the Yakama Nation Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 78 since FY2024.
87	Yankton Sioux Tero Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 83 since FY2024.
88	Mashpee Wampanoag Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	White Mountain Apache Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Torres Martinez Desert Cahuilla Indians Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Cherokee Nation Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 86 since FY2024.
92	Puyallup Tribe of Indians Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 88 since FY2024.
93	Hualapai Tribal Council Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 89 since FY2024.
94	NEZ Perce Tribe Top agencies EEOC (Equal Employment Opportunity Commission)	$32,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 89 since FY2024.
95	Lummi Indian Business Council Top agencies EEOC (Equal Employment Opportunity Commission)	$31,927	0.1%	Rank history: not on the FY2021–FY2024 lists; up 49 since FY2024.
96	Metlakatla Indian Community Top agencies EEOC (Equal Employment Opportunity Commission)	$31,778	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Shoshone-Paiute Tribes Top agencies EEOC (Equal Employment Opportunity Commission)	$31,653	0.1%	Rank history: not on the FY2021–FY2024 lists; up 45 since FY2024.
98	City of Madison Top agencies EEOC (Equal Employment Opportunity Commission)	$30,880	0.1%	Rank history: not on the FY2021–FY2023 lists and #98 in FY2024; unchanged since FY2024.
99	Tulalip Tribes of Washington Top agencies EEOC (Equal Employment Opportunity Commission)	$30,550	0.1%	Rank history: not on the FY2021–FY2024 lists; up 68 since FY2024.
100	Chemehuevi Indian Tribe of the Chemehuevi Reservation, California Top agencies EEOC (Equal Employment Opportunity Commission)	$30,300	0.1%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.

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100 of 200 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 81331

Code	Net obligations	Largest contractor
813311 Human Rights Organizations	$18,662,805	Civil Rights Commission Ohio
813312 Environment, Conservation and Wildlife Organizations	$8,573,581	Tetra Tech, 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 $35 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 81331 contractors in FY2025?

1. Tetra Tech, Inc. ($5M), 2. National Disability Rights Network Inc. ($2.91M), 3. Civil Rights Commission Ohio ($2.74M), 4. Civil Rights Department ($2.33M), 5. Human Rights New York State Division Of ($1.66M), 6. Florida Commission on Human Relations ($1.05M), 7. Human Rights & Opportunities Connecticut Commission On ($1.02M), 8. Texas Workforce Commission ($864K), 9. Department of Civil Rights Michigan ($846K), 10. Colorado Department of Regulatory Agencies ($783K).

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