Top 100 Contractors in PSC R429: Support – Professional: Emergency Response/Disaster Planning/Preparedness Support, FY2025

Name: Top 100 Contractors in PSC R429: Support – Professional: Emergency Response/Disaster Planning/Preparedness Support, FY2025
Creator: GovTribe

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

The top 10 won 56% of FY2025 PSC R429 contract dollars

Contract obligations: $652,928,225 Net of deobligations, by contracts coded PSC R429
Contractors: 128 Parent companies with an obligation
Largest contractor: Fluor Corporation $207 million, 23.5% 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	Fluor Corporation Through Fluor Federal Services Inc. Top agencies DHS (Department of Homeland Security)	$206,604,488	23.5%	Rank history: #3 in FY2021, #34 in FY2022, #2 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	Weston Solutions Holdings, Inc. 3 awardees, including Weston Solutions Inc. Top agencies EPA (Environmental Protection Agency)	$71,632,304	8.1%	Rank history: #18 in FY2021, #11 in FY2022, #14 in FY2023 and #7 in FY2024; up 5 since FY2024.
3	Chemonics International, Inc. Top agencies USAID (US Agency for International Development)	$37,115,821	4.2%	Rank history: #14 in FY2021, #8 in FY2022, #10 in FY2023 and #6 in FY2024; up 3 since FY2024.
4	Tetra Tech, Inc. 6 awardees Top agencies EPA (Environmental Protection Agency)	$31,069,916	3.5%	Rank history: #12 in FY2021, #5 in FY2022, #7 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	Serco Inc Top agencies DHS (Department of Homeland Security)	$29,441,880	3.3%	Rank history: not on the FY2021–FY2022 lists, #16 in FY2023 and #5 in FY2024; unchanged since FY2024.
6	Nana Regional Corporation, Inc. 2 awardees, including Akima Intra-Data, LLC Top agencies Army (Department of the Army)	$28,093,063	3.2%	Rank history: not on the FY2021–FY2023 lists and #20 in FY2024; up 14 since FY2024.
7	Phoenix Air Group, Inc. Top agencies DOS (Department of State)	$26,910,133	3.1%	Rank history: #6 in FY2021, #7 in FY2022, #12 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	Integrated Quality Solutions, LLC Top agencies HHS (Department of Health and Human Services)	$24,355,997	2.8%	Rank history: #25 in FY2021, #9 in FY2022, #3 in FY2023 and #11 in FY2024; up 3 since FY2024.
9	Metro Logics Inc. Top agencies HHS (Department of Health and Human Services)	$21,925,539	2.5%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; up 1 since FY2024.
10	Rapid Deployment Inc. Top agencies HHS (Department of Health and Human Services)	$18,069,463	2.1%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #43 in FY2024; up 33 since FY2024.
11	L2 Defense Inc. Top agencies Army (Department of the Army)	$15,601,051	1.8%	Rank history: #34 in FY2021, #25 in FY2022, #17 in FY2023 and #16 in FY2024; up 5 since FY2024.
12	Life Science Logistics LLC Top agencies HHS (Department of Health and Human Services)	$15,182,517	1.7%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2024; down 9 since FY2024.
13	Nistac Plus JV Top agencies DHS (Department of Homeland Security)	$14,144,424	1.6%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; up 19 since FY2024.
14	Hexagon US Federal, Inc. Top agencies Navy (Department of the Navy)	$10,123,352	1.2%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; up 5 since FY2024.
15	K2 Group, Inc. Top agencies DTRA (Defense Threat Reduction Agency)	$9,096,653	1.0%	Rank history: #38 in FY2021, #27 in FY2022, not on the FY2023 list and #22 in FY2024; up 7 since FY2024.
16	Covenant Park Integrated Initiatives, Inc. Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$8,852,630	1.0%	Rank history: #55 in FY2021, #31 in FY2022, #38 in FY2023 and #42 in FY2024; up 26 since FY2024.
17	Obxtek Inc. Top agencies DOS (Department of State)	$8,030,121	0.9%	Rank history: #36 in FY2021, #20 in FY2022, #20 in FY2023 and #15 in FY2024; down 2 since FY2024.
18	Motorola Solutions, Inc. Top agencies Navy (Department of the Navy)	$7,115,575	0.8%	Rank history: not on the FY2021–FY2023 lists and #21 in FY2024; up 3 since FY2024.
19	Dawson Solutions LLC Top agencies USAF (Department of the Air Force)	$6,589,667	0.7%	Rank history: not on the FY2021–FY2023 lists and #25 in FY2024; up 6 since FY2024.
20	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top agencies HHS (Department of Health and Human Services) PBGC (Pension Benefit Guaranty Corporation) Treasury (Department of the Treasury)	$5,835,640	0.7%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 6 since FY2024.
21	TM3 Solutions Inc. Top agencies DHS (Department of Homeland Security)	$5,368,528	0.6%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 28 since FY2024.
22	The Mental Health Association of New York City, Inc. Top agencies VA (Department of Veterans Affairs)	$5,236,868	0.6%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2024; up 6 since FY2024.
23	Summit Exercises and Training LLC Top agencies DHS (Department of Homeland Security)	$4,527,869	0.5%	Rank history: #47 in FY2021, #29 in FY2022, #25 in FY2023 and #30 in FY2024; up 7 since FY2024.
24	Dewberry Engineers Inc. Top agencies DHS (Department of Homeland Security)	$3,897,952	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
25	The CNA Corporation Top agencies DHS (Department of Homeland Security)	$3,842,844	0.4%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 6 since FY2024.
26	Patriot Environmental Services, Inc. Top agencies USDA (Department of Agriculture)	$3,392,155	0.4%	Rank history: not on the FY2021 list, #59 in FY2022, #50 in FY2023 and #37 in FY2024; up 11 since FY2024.
27	Community Health Systems Inc. Through ROH Inc. Top agencies Navy (Department of the Navy)	$3,287,092	0.4%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023 and #36 in FY2024; up 9 since FY2024.
28	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$3,109,175	0.4%	Rank history: #41 in FY2021, #32 in FY2022, #30 in FY2023 and #33 in FY2024; up 5 since FY2024.
29	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies DHS (Department of Homeland Security)	$2,874,213	0.3%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023 and #23 in FY2024; down 6 since FY2024.
30	Gonzales Consulting Services Inc Top agencies SSA (Social Security Administration)	$2,811,316	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; up 8 since FY2024.
31	Leidos Holdings, Inc. 2 awardees, including Dynetics, Inc. Top agencies Army (Department of the Army)	$2,748,716	0.3%	Rank history: #44 in FY2021, #36 in FY2022, #31 in FY2023 and not on the FY2024 list; returned.
32	Decisionpoint Corporation Top agencies HHS (Department of Health and Human Services)	$2,612,548	0.3%	Rank history: not on the FY2021 list, #57 in FY2022, #55 in FY2023 and #46 in FY2024; up 14 since FY2024.
33	Gryphon Scientific, LLC Top agencies DOD (Department of Defense)	$2,433,986	0.3%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #40 in FY2024; up 7 since FY2024.
34	Harkcon Inc. Top agencies DHS (Department of Homeland Security) SSA (Social Security Administration)	$2,178,978	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
35	Niyamit Inc. Top agencies DHS (Department of Homeland Security)	$1,938,443	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
36	AECOM Technical Services, Inc. Top agencies HHS (Department of Health and Human Services)	$1,670,153	0.2%	Rank history: not on the FY2021–FY2023 lists and #67 in FY2024; up 31 since FY2024.
37	Cherokee Nation Integrated Health, L.L.C. Top agencies HHS (Department of Health and Human Services)	$1,560,436	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; up 11 since FY2024.
38	Dssg LLC Top agencies Army (Department of the Army)	$1,538,063	0.2%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2024; up 14 since FY2024.
39	Trident Environmental Group, LLC Top agencies USDA (Department of Agriculture)	$1,245,199	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #89 in FY2024; up 50 since FY2024.
40	Tribalco LLC Top agencies USAF (Department of the Air Force)	$1,152,459	0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2023 and #66 in FY2024; up 26 since FY2024.
41	Onesourcepcs LLC Top agencies USAF (Department of the Air Force)	$1,130,853	0.1%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 12 since FY2024.
42	Thinktek LLC Top agencies USAF (Department of the Air Force)	$996,374	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
43	Launchtech, LLC Top agencies DHA (Defense Health Agency)	$936,880	0.1%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2024; up 12 since FY2024.
44	Lincoln Environmental Services, Inc. Top agencies USAF (Department of the Air Force)	$921,227	0.1%	Rank history: #70 in FY2021, #61 in FY2022, #94 in FY2023 and #57 in FY2024; up 13 since FY2024.
45	Kpmg LLP Top agencies HUD (Department of Housing and Urban Development)	$816,843	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
46	Consolidated Transportation Services Inc. Top agencies HHS (Department of Health and Human Services)	$788,924	0.1%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 5 since FY2024.
47	Echelon Services, LLC Top agencies DOT (Department of Transportation)	$759,958	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and #54 in FY2024; up 7 since FY2024.
48	Alertus Technologies LLC Top agencies VA (Department of Veterans Affairs)	$699,361	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
49	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies DHS (Department of Homeland Security)	$547,870	0.1%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #79 in FY2024; up 30 since FY2024.
50	Syntelligent Analytic Solutions LLC Top agencies HHS (Department of Health and Human Services)	$475,500	0.1%	Rank history: not on the FY2021–FY2023 lists and #71 in FY2024; up 21 since FY2024.
51	Jacobs Government Services Company Through Ch2M Hill - CDM Pa-Tac Recovery Services Top agencies DHS (Department of Homeland Security)	$464,177	0.1%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 49 since FY2024.
52	Tier TECH International, Inc. Top agencies SSA (Social Security Administration)	$433,505	<0.1%	Rank history: #61 in FY2021, #47 in FY2022, #40 in FY2023 and #45 in FY2024; down 7 since FY2024.
53	Accelerated Business Strategies LLC Top agencies WHS (DOD Washington Headquarters Service)	$403,948	<0.1%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 16 since FY2024.
54	Bowhead Mission Solutions, LLC Top agencies USAF (Department of the Air Force)	$357,560	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 75 since FY2024.
55	Security 1 Solutions LLC Top agencies Army (Department of the Army)	$354,293	<0.1%	Rank history: #93 in FY2021, #79 in FY2022, #61 in FY2023 and #74 in FY2024; up 19 since FY2024.
56	City of Loma Linda Top agencies VA (Department of Veterans Affairs)	$349,214	<0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #76 in FY2024; up 20 since FY2024.
57	Bcfs Health and Human Services Top agencies HHS (Department of Health and Human Services)	$344,896	<0.1%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 5 since FY2024.
58	Logistics Management Institute Top agencies USDA (Department of Agriculture)	$339,467	<0.1%	Rank history: not on the FY2021 list, #54 in FY2022, #58 in FY2023 and #73 in FY2024; up 15 since FY2024.
59	Michael Melton Contracting LLC Top agencies USDA (Department of Agriculture)	$319,556	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top agencies DOE (Department of Energy)	$317,311	<0.1%	Rank history: #83 in FY2021, #71 in FY2022, #63 in FY2023 and #60 in FY2024; unchanged since FY2024.
61	Environmental Systems Research Institute, Inc. Top agencies DHS (Department of Homeland Security)	$292,609	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, #54 in FY2023 and #82 in FY2024; up 21 since FY2024.
62	Business Development Associates, LLC Top agencies HHS (Department of Health and Human Services)	$291,088	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022, #76 in FY2023 and #77 in FY2024; up 15 since FY2024.
63	Polygon US Corporation Top agencies NARA (National Archives and Records Administration)	$284,056	<0.1%	Rank history: not on the FY2021–FY2023 lists and #94 in FY2024; up 31 since FY2024.
64	J&M Global Solutions LLC Top agencies HHS (Department of Health and Human Services)	$248,665	<0.1%	Rank history: #29 in FY2021, #22 in FY2022, #21 in FY2023 and #41 in FY2024; down 23 since FY2024.
65	Nuka Research & Planning Group LLC Top agencies DOI (Department of the Interior)	$244,674	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
66	Kinetic Concepts LLC Top agencies Army (Department of the Army)	$230,542	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	IEM International, Inc. Top agencies DHS (Department of Homeland Security)	$211,834	<0.1%	Rank history: #49 in FY2021, #44 in FY2022 and not on the FY2023–FY2024 lists; returned.
68	Watermark Risk Management International, LLC Top agencies DOI (Department of the Interior)	$208,000	<0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #78 in FY2024; up 10 since FY2024.
69	Forts Logistics, LLC Top agencies HHS (Department of Health and Human Services)	$163,200	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Research Planning, Inc. Top agencies Commerce (Department of Commerce)	$158,483	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	Aldevra LLC Top agencies USAF (Department of the Air Force)	$153,189	<0.1%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023 and #84 in FY2024; up 13 since FY2024.
72	County of Escambia Top agencies DOI (Department of the Interior)	$151,473	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023 and #98 in FY2024; up 26 since FY2024.
73	Highway Patrol, California Top agencies USDA (Department of Agriculture)	$123,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Star Enterprises, Inc. Top agencies CSOSA (Court Services and Offender Supervision Agency)	$112,576	<0.1%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 13 since FY2024.
75	Rescue Connect Limited Top agencies DOS (Department of State)	$99,946	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Raglan LLC Top agencies Army (Department of the Army)	$92,689	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	Mississippi Gulf Coast Young Mens Christian Association Inc. Top agencies DOI (Department of the Interior)	$88,001	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Crisis Response Co LLC Top agencies DOS (Department of State)	$81,011	<0.1%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023 and not on the FY2024 list; returned.
79	Fireside Partners Inc. Top agencies DOJ (Department of Justice)	$70,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	Interagency Readiness Solutions, LLC Top agencies Navy (Department of the Navy)	$64,607	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #96 in FY2023 and not on the FY2024 list; returned.
81	Veoci Inc. Top agencies VA (Department of Veterans Affairs)	$63,920	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Las Vegas Metropolitan Police Department Top agencies DOI (Department of the Interior)	$63,770	<0.1%	Rank history: not on the FY2021 list, #97 in FY2022, #92 in FY2023 and #93 in FY2024; up 11 since FY2024.
83	Joel A Mercado Diaz Top agencies USDA (Department of Agriculture)	$60,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Safety Resources Company of Ohio Top agencies VA (Department of Veterans Affairs)	$55,682	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Clear Cloud Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$46,923	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	City of Roswell, Georgia Top agencies DOI (Department of the Interior)	$42,647	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
87	Strohman Enterprise Inc Top agencies DOI (Department of the Interior)	$41,449	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 14 since FY2024.
88	Nashoba Valley Regional Dispatch District Top agencies Army (Department of the Army)	$40,419	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
89	International Sos Government Services LLC Top agencies Navy (Department of the Navy)	$38,852	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	New Jersey Emergency Medical Services Task Force Support Group, Inc. Top agencies USAF (Department of the Air Force)	$37,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	RNR Rescue, LLC Top agencies Army (Department of the Army)	$33,330	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Southeast Restoration, Inc. Top agencies GSA (General Services Administration)	$28,608	<0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #77 in FY2023 and not on the FY2024 list; returned.
93	Strategic Medical Research & Training Inc. Top agencies DOT (Department of Transportation)	$28,500	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
94	Reliable Government Solutions Incorporated Top agencies DHA (Defense Health Agency)	$26,600	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
95	Managed Emergency Surge for Healthcare Inc. Top agencies VA (Department of Veterans Affairs)	$25,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
96	Network Environmental Systems, Incorporated Top agencies Army (Department of the Army)	$24,875	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Department of Public Safety State Utah Top agencies DOI (Department of the Interior)	$23,920	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
98	Resc.usa Inc. Top agencies Army (Department of the Army)	$22,730	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Edmonson County Fiscal Court Top agencies DOI (Department of the Interior)	$20,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 18 since FY2024.
100	County of Mesa Top agencies DOI (Department of the Interior)	$20,000	<0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 128 contractors listed here. See the rest on GovTribe.

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 $880 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 PSC R429 contractors in FY2025?

1. Fluor Corporation ($207M), 2. Weston Solutions Holdings, Inc. ($71.6M), 3. Chemonics International, Inc. ($37.1M), 4. Tetra Tech, Inc. ($31.1M), 5. Serco Inc ($29.4M), 6. Nana Regional Corporation, Inc. ($28.1M), 7. Phoenix Air Group, Inc. ($26.9M), 8. Integrated Quality Solutions, LLC ($24.4M), 9. Metro Logics Inc. ($21.9M), 10. Rapid Deployment Inc. ($18.1M).

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