Top 100 Contractors in NAICS 33391: Pump and Compressor Manufacturing, FY2025

Name: Top 100 Contractors in NAICS 33391: Pump and Compressor Manufacturing, FY2025
Creator: GovTribe

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

The top 10 won 45% of FY2025 NAICS 33391 contract dollars

Contract obligations: $299,194,015 Net of deobligations, by contracts coded NAICS 33391 or a code under it
Contractors: 873 Parent companies with an obligation
Largest contractor: American Indian Health & Services Corporation $45.5 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	American Indian Health & Services Corporation 2 awardees, including Circor Naval Solutions LLC and Circor Pumps North America LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$45,528,095	14.3%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; up 1 since FY2024.
2	Leonardo S.p.A. 5 awardees, including DRS Sustainment Systems, Inc., Laurel Technologies Partnership and DRS Naval Power Systems Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$27,273,481	8.6%	Rank history: #42 in FY2021, #2 in FY2022, #1 in FY2023 and #41 in FY2024; up 39 since FY2024.
3	ITL LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$16,594,132	5.2%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; up 6 since FY2024.
4	Curtiss-Wright Electro-Mechanical Corp 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$11,656,083	3.7%	Rank history: not on the FY2021 list, #9 in FY2022, not on the FY2023 list and #3 in FY2024; down 1 since FY2024.
5	RIX Industries Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$9,034,114	2.8%	Rank history: #4 in FY2021, #7 in FY2022, #4 in FY2023 and #1 in FY2024; down 4 since FY2024.
6	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$7,270,525	2.3%	Rank history: not on the FY2021 list, #8 in FY2022, #12 in FY2023 and #12 in FY2024; up 6 since FY2024.
7	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$7,217,207	2.3%	Rank history: #5 in FY2021, #6 in FY2022, #5 in FY2023 and #4 in FY2024; down 3 since FY2024.
8	Wright Tool Company LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$6,195,809	1.9%	Rank history: not on the FY2021–FY2024 lists; up 206 since FY2024.
9	Carver Pump Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,683,416	1.8%	Rank history: #82 in FY2021, #38 in FY2022, #7 in FY2023 and #7 in FY2024; down 2 since FY2024.
10	Heil Trailer International LLC Top agencies Army (Department of the Army)	$5,197,277	1.6%	Rank history: #3 in FY2021, #10 in FY2022, #3 in FY2023 and #5 in FY2024; down 5 since FY2024.
11	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,082,031	1.6%	Rank history: #30 in FY2021, #22 in FY2022, #20 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,444,114	1.4%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 76 since FY2024.
13	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$4,310,771	1.4%	Rank history: #23 in FY2021, #14 in FY2022, #17 in FY2023 and #16 in FY2024; up 3 since FY2024.
14	Hammonds Technical Services, Inc. Top agencies USAF (Department of the Air Force)	$3,606,781	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
15	Lake Shore Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,898,007	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
16	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,893,315	0.9%	Rank history: #35 in FY2021, #13 in FY2022, #18 in FY2023 and #18 in FY2024; up 2 since FY2024.
17	Hydraulics International, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$2,832,069	0.9%	Rank history: #8 in FY2021, #35 in FY2022, #30 in FY2023 and #34 in FY2024; up 17 since FY2024.
18	Acme Products & Engineering Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,705,760	0.9%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list and #57 in FY2024; up 39 since FY2024.
19	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$2,663,139	0.8%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 20 since FY2024.
20	RTX Corporation 6 awardees, including Raytheon Company, Hamilton Sundstrand Corporation and Intertrade Limited Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,510,068	0.8%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 76 since FY2024.
21	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$2,313,892	0.7%	Rank history: #63 in FY2021, #28 in FY2022, #44 in FY2023 and #75 in FY2024; up 54 since FY2024.
22	Gardner Denver Nash LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,223,058	0.7%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 27 since FY2024.
23	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$2,143,553	0.7%	Rank history: #26 in FY2021, #34 in FY2022, #22 in FY2023 and #47 in FY2024; up 24 since FY2024.
24	W S Darley & Co 2 awardees, including WS Darley & Co Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$1,957,037	0.6%	Rank history: #9 in FY2021, #4 in FY2022, #10 in FY2023 and #8 in FY2024; down 16 since FY2024.
25	Compressor Engineering Corp Top agencies DLA (Defense Logistics Agency)	$1,866,089	0.6%	Rank history: #21 in FY2021, #32 in FY2022, #33 in FY2023 and #94 in FY2024; up 69 since FY2024.
26	All-Safe Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,823,905	0.6%	Rank history: not on the FY2021 list, #23 in FY2022, #31 in FY2023 and #31 in FY2024; up 5 since FY2024.
27	Fluidra SA Through Evac North America Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$1,759,958	0.6%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; up 35 since FY2024.
28	Hardigg Industries, LLC Top agencies DLA (Defense Logistics Agency)	$1,636,260	0.5%	Rank history: not on the FY2021–FY2024 lists; up 80 since FY2024.
29	Barber-Nichols LLC Top agencies Navy (Department of the Navy)	$1,587,649	0.5%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 35 since FY2024.
30	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,577,912	0.5%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 26 since FY2024.
31	Rotating Machinery Services Inc. Top agencies USAF (Department of the Air Force)	$1,554,750	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
32	Marotta Controls Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,533,534	0.5%	Rank history: not on the FY2021–FY2024 lists; up 162 since FY2024.
33	Meggitt Aerospace Limited 4 awardees, including Meggitt Defense Systems, Inc. and Parker Hannifin Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$1,510,586	0.5%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2024; up 30 since FY2024.
34	PCX Inc. Top agencies DLA (Defense Logistics Agency)	$1,488,218	0.5%	Rank history: not on the FY2021–FY2024 lists; up 321 since FY2024.
35	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,415,264	0.4%	Rank history: not on the FY2021 list, #55 in FY2022, #70 in FY2023 and #29 in FY2024; down 6 since FY2024.
36	Hydro-Aire Aerospace Corp. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,396,849	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
37	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$1,369,430	0.4%	Rank history: not on the FY2021 list, #57 in FY2022, #62 in FY2023 and not on the FY2024 list; up 95 since FY2024.
38	Spokane Stainless Technologies, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) GSA (General Services Administration)	$1,354,946	0.4%	Rank history: not on the FY2021–FY2024 lists; up 73 since FY2024.
39	Sauer Compressors Usa, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,315,564	0.4%	Rank history: #24 in FY2021, not on the FY2022–FY2023 lists and #17 in FY2024; down 22 since FY2024.
40	Worldwide Equipment Inc. Top agencies Army (Department of the Army)	$1,289,827	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
41	The Mallory Co. Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,288,444	0.4%	Rank history: #41 in FY2021, #27 in FY2022, #90 in FY2023 and #37 in FY2024; down 4 since FY2024.
42	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$1,279,012	0.4%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 16 since FY2024.
43	Crane Pumps & Systems PFT Corp Top agencies Navy (Department of the Navy)	$1,278,873	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
44	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$1,153,454	0.4%	Rank history: #68 in FY2021, not on the FY2022 list, #86 in FY2023 and #43 in FY2024; down 1 since FY2024.
45	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,136,538	0.4%	Rank history: #38 in FY2021, #24 in FY2022, not on the FY2023 list and #59 in FY2024; up 14 since FY2024.
46	Gentex Corp Top agencies DLA (Defense Logistics Agency)	$1,106,208	0.3%	Rank history: not on the FY2021–FY2023 lists and #76 in FY2024; up 30 since FY2024.
47	Martin Military Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,060,247	0.3%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 4 since FY2024.
48	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,039,310	0.3%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #19 in FY2024; down 29 since FY2024.
49	Fotronic Corporation Top agencies Navy (Department of the Navy)	$1,036,800	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	K & M Industrial LLC Top agencies DHS (Department of Homeland Security)	$1,018,392	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
51	Seahorse Defense Supply, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$916,845	0.3%	Rank history: not on the FY2021–FY2024 lists; up 90 since FY2024.
52	Aantilia LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$895,416	0.3%	Rank history: #69 in FY2021, #61 in FY2022, not on the FY2023 list and #85 in FY2024; up 33 since FY2024.
53	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$882,534	0.3%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2024; up 39 since FY2024.
54	JA Moody LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$873,305	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 16 since FY2024.
55	M.t. Davidson Company Top agencies Navy (Department of the Navy)	$855,921	0.3%	Rank history: not on the FY2021–FY2023 lists and #65 in FY2024; up 10 since FY2024.
56	Blackmer East Coast Repair Center Top agencies Navy (Department of the Navy)	$831,954	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
57	LN Curtis & Sons Top agencies USDA (Department of Agriculture)	$820,444	0.3%	Rank history: not on the FY2021 list, #80 in FY2022, #80 in FY2023 and not on the FY2024 list; up 76 since FY2024.
58	V2X, Inc. 2 awardees, including V2X Systems LLC and Vertex Modernization and Sustainment LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$799,725	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) DOJ (Department of Justice)	$794,262	0.2%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 30 since FY2024.
60	Lourdes Industries, Inc. Top agencies Navy (Department of the Navy)	$782,589	0.2%	Rank history: not on the FY2021 list, #63 in FY2022, not on the FY2023 list and #82 in FY2024; up 22 since FY2024.
61	Bisonte Industrial USA LLC Top agencies DLA (Defense Logistics Agency)	$770,004	0.2%	Rank history: not on the FY2021–FY2024 lists; up 323 since FY2024.
62	Dela Technology Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$742,083	0.2%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2023–FY2024 lists; up 141 since FY2024.
63	Aviation, Power & Marine, LLC Top agencies Navy (Department of the Navy)	$725,010	0.2%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2024; down 36 since FY2024.
64	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy)	$712,550	0.2%	Rank history: not on the FY2021–FY2024 lists; up 316 since FY2024.
65	Cornerstone Ondemand Inc. Through Semitorr Group, LLC Top agencies Navy (Department of the Navy)	$704,827	0.2%	Rank history: not on the FY2021–FY2024 lists; up 127 since FY2024.
66	BAE Systems 4 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Land & Armaments L.P. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$693,739	0.2%	Rank history: not on the FY2021–FY2023 lists and #42 in FY2024; down 24 since FY2024.
67	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$677,442	0.2%	Rank history: not on the FY2021–FY2024 lists; up 99 since FY2024.
68	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$665,141	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2024; up 19 since FY2024.
69	Welin Lambie Limited Through Fairbanks Morse, LLC Top agencies Navy (Department of the Navy)	$628,649	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Isometrics Inc. Top agencies Army (Department of the Army)	$626,538	0.2%	Rank history: #1 in FY2021, #1 in FY2022, #29 in FY2023 and #35 in FY2024; down 35 since FY2024.
71	Dover Pumps & Process Solutions Segment Inc. Top agencies Navy (Department of the Navy)	$610,616	0.2%	Rank history: not on the FY2021–FY2023 lists and #79 in FY2024; up 8 since FY2024.
72	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$602,174	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; down 4 since FY2024.
73	Cummins-Wagner Company, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$601,399	0.2%	Rank history: not on the FY2021 list, #68 in FY2022 and not on the FY2023–FY2024 lists; up 144 since FY2024.
74	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$598,566	0.2%	Rank history: not on the FY2021–FY2024 lists; up 111 since FY2024.
75	Goforth Williamson Inc. Top agencies Army (Department of the Army)	$593,300	0.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 16 since FY2024.
76	Mielke Mechanical Inc. Top agencies NASA (National Aeronautics and Space Administration)	$572,248	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
77	Seventh Genius LLC Top agencies Army (Department of the Army)	$545,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
78	Honeywell International, Inc. Top agencies Navy (Department of the Navy)	$537,138	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
79	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$531,502	0.2%	Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
80	J.h. Norton Company, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$528,396	0.2%	Rank history: not on the FY2021–FY2024 lists; up 63 since FY2024.
81	Ultra Electronics Ocean Systems Inc. Top agencies Navy (Department of the Navy)	$526,751	0.2%	Rank history: not on the FY2021–FY2024 lists; up 124 since FY2024.
82	PDC Machines, LLC Top agencies Navy (Department of the Navy)	$508,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	Bauer Compressors Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$478,867	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 23 since FY2024.
84	United States Technologies Inc. Top agencies Navy (Department of the Navy)	$474,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Air & Gas TECH Inc. Top agencies Navy (Department of the Navy)	$473,614	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
86	R F Products, Inc. Top agencies Navy (Department of the Navy)	$469,652	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Govage, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$428,828	0.1%	Rank history: not on the FY2021–FY2024 lists; up 393 since FY2024.
88	Northern Defense Industries, LLC Top agencies Navy (Department of the Navy)	$427,264	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
89	Phoenix Pumps Inc. Top agencies DOI (Department of the Interior)	$401,223	0.1%	Rank history: #29 in FY2021, #12 in FY2022, #48 in FY2023 and not on the FY2024 list; returned.
90	Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy)	$397,943	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Eaton Corporation Top agencies DLA (Defense Logistics Agency)	$397,376	0.1%	Rank history: #65 in FY2021, not on the FY2022 list, #39 in FY2023 and #33 in FY2024; down 58 since FY2024.
92	Mid-Atlantic Engineered Systems Inc. Top agencies Navy (Department of the Navy)	$395,477	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Sims Pump Valve Co, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$387,051	0.1%	Rank history: #49 in FY2021, #99 in FY2022, #76 in FY2023 and #72 in FY2024; down 21 since FY2024.
94	Hunt Valve Company, Inc. Top agencies Navy (Department of the Navy)	$384,561	0.1%	Rank history: not on the FY2021–FY2024 lists; up 166 since FY2024.
95	District Psychiatry and Wellness LLC Top agencies DLA (Defense Logistics Agency)	$370,594	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Defense Venture Holdings, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$363,855	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Atrenne Computing Solutions, LLC Top agencies Navy (Department of the Navy)	$363,115	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Derbyshire Machine & Tool Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$362,771	0.1%	Rank history: not on the FY2021–FY2024 lists; up 11 since FY2024.
99	RBC Aircraft Products Inc Through Sargent Aerospace & Defense, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$359,581	0.1%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2024; down 59 since FY2024.
100	Chase Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$358,137	0.1%	Rank history: not on the FY2021–FY2024 lists; up 286 since FY2024.

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100 of 873 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33391

Code	Net obligations	Largest contractor
333914 Measuring, Dispensing, and Other Pumping Equipment Manufacturing	$179,670,627	American Indian Health & Services Corporation
333912 Air and Gas Compressor Manufacturing	$90,756,150	ITL LLC

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 $318 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 33391 contractors in FY2025?

1. American Indian Health & Services Corporation ($45.5M), 2. Leonardo S.p.A. ($27.3M), 3. ITL LLC ($16.6M), 4. Curtiss-Wright Electro-Mechanical Corp ($11.7M), 5. RIX Industries ($9.03M), 6. ECI Defense Group, Inc. ($7.27M), 7. Argo Turboserve Corporation ($7.22M), 8. Wright Tool Company LLC ($6.2M), 9. Carver Pump Company ($5.68M), 10. Heil Trailer International LLC ($5.2M).

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