Top 100 Contractors in PSC 4310: Compressors and Vacuum Pumps, FY2024

Name: Top 100 Contractors in PSC 4310: Compressors and Vacuum Pumps, FY2024
Creator: GovTribe

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

The top 10 won 61% of FY2024 PSC 4310 contract dollars

Contract obligations: $130,102,802 Net of deobligations, by contracts coded PSC 4310
Contractors: 460 Parent companies with an obligation
Largest contractor: RIX Industries $32.7 million, 24.2% 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	RIX Industries Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$32,691,388	24.2%	Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023 and #5 in FY2025; unchanged since FY2023.
2	Argo Turboserve Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$11,323,010	8.4%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023 and #7 in FY2025; unchanged since FY2023.
3	Curtiss-Wright Corporation 3 awardees, including Curtiss-Wright Electro-Mechanical Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$11,068,086	8.2%	Rank history: #4 in FY2021, #1 in FY2022, #3 in FY2023 and not on the FY2025 list; unchanged since FY2023.
4	Curtiss-Wright Electro-Mechanical Corp Top agencies Navy (Department of the Navy)	$6,982,618	5.2%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2025; new.
5	ITL LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$6,573,348	4.9%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2025; new.
6	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$3,756,258	2.8%	Rank history: #20 in FY2021, #14 in FY2022, #12 in FY2023 and #11 in FY2025; up 6 since FY2023.
7	Sauer Compressors Usa, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,262,517	2.4%	Rank history: #22 in FY2021, not on the FY2022–FY2023 lists and #16 in FY2025; returned.
8	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,509,733	1.9%	Rank history: #12 in FY2021, #10 in FY2022, #7 in FY2023 and #19 in FY2025; down 1 since FY2023.
9	Weeminuche Construction Authority Through WCA Construction, LLC Top agencies DOI (Department of the Interior)	$2,015,100	1.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
10	Meggitt Defense Systems Inc. Top agencies Navy (Department of the Navy)	$1,935,613	1.4%	Rank history: not on the FY2021 list, #27 in FY2022, #31 in FY2023 and not on the FY2025 list; up 21 since FY2023.
11	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$1,834,655	1.4%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2025; new.
12	Federal Resources Supply Company Top agencies Army (Department of the Army)	$1,763,804	1.3%	Rank history: #11 in FY2021, #12 in FY2022, #10 in FY2023 and not on the FY2025 list; down 2 since FY2023.
13	United Rentals (North America), Inc. Top agencies Navy (Department of the Navy)	$1,463,616	1.1%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; new.
14	Kool Radiator Service Inc. Top agencies DLA (Defense Logistics Agency)	$1,321,988	1.0%	Rank history: #18 in FY2021, #23 in FY2022, #27 in FY2023 and not on the FY2025 list; up 13 since FY2023.
15	Pacific Consolidated Industries LLC 2 awardees Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$1,312,360	1.0%	Rank history: #10 in FY2021, #8 in FY2022, #4 in FY2023 and #12 in FY2025; down 11 since FY2023.
16	Advanced Products Services Inc. Top agencies DLA (Defense Logistics Agency)	$1,167,578	0.9%	Rank history: #7 in FY2021, #7 in FY2022, #5 in FY2023 and not on the FY2025 list; down 11 since FY2023.
17	Johnson Controls Security Solutions LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$1,137,341	0.8%	Rank history: #5 in FY2021, #5 in FY2022, #6 in FY2023 and not on the FY2025 list; down 11 since FY2023.
18	Gardner Denver Nash LLC 3 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,085,570	0.8%	Rank history: #8 in FY2021, #4 in FY2022, #8 in FY2023 and #23 in FY2025; down 10 since FY2023.
19	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$1,021,721	0.8%	Rank history: #28 in FY2021, #6 in FY2022, #35 in FY2023 and #26 in FY2025; up 16 since FY2023.
20	Jarvis Airfoil Inc. Top agencies USAF (Department of the Air Force)	$971,950	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
21	Bauer Compressors Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$918,232	0.7%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2025; new.
22	Meggitt Aerospace Limited 2 awardees, including Meggitt Defense Systems, Inc. and Parker-Hannifin Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$889,912	0.7%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
23	Scioteq LLC 2 awardees, including Transdigm Inc. and Tactair Fluid Controls Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$883,523	0.7%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
24	Aantilia LLC Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) USAF (Department of the Air Force)	$844,154	0.6%	Rank history: #38 in FY2021, #47 in FY2022, #64 in FY2023 and #48 in FY2025; up 40 since FY2023.
25	Lourdes Industries, Inc. Top agencies Navy (Department of the Navy)	$833,398	0.6%	Rank history: not on the FY2021 list, #20 in FY2022, not on the FY2023 list and #22 in FY2025; up 208 since FY2023.
26	Direct Line, Inc. Top agencies DLA (Defense Logistics Agency)	$809,533	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 190 since FY2023.
27	Paula F Price Enterprises LLC Top agencies Army (Department of the Army)	$801,500	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
28	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$788,610	0.6%	Rank history: #16 in FY2021, #15 in FY2022, #9 in FY2023 and #14 in FY2025; down 19 since FY2023.
29	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$650,442	0.5%	Rank history: #52 in FY2021, not on the FY2022 list, #73 in FY2023 and #27 in FY2025; up 44 since FY2023.
30	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$638,397	0.5%	Rank history: #58 in FY2021, not on the FY2022 list, #18 in FY2023 and not on the FY2025 list; down 12 since FY2023.
31	Fluidra SA Through Evac North America Inc. Top agencies Navy (Department of the Navy)	$609,669	0.5%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; up 99 since FY2023.
32	K5 Defense LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Army (Department of the Army)	$595,214	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
33	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$574,897	0.4%	Rank history: #27 in FY2021, #22 in FY2022, #21 in FY2023 and #31 in FY2025; down 12 since FY2023.
34	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$571,399	0.4%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2025; up 151 since FY2023.
35	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Army (Department of the Army)	$548,591	0.4%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
36	Atap Inc. Top agencies USAF (Department of the Air Force)	$517,580	0.4%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and #84 in FY2025; down 14 since FY2023.
37	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$488,999	0.4%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
38	Meco Inc Top agencies Army (Department of the Army)	$468,700	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 63 since FY2023.
39	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$456,548	0.3%	Rank history: not on the FY2021–FY2023 lists and #52 in FY2025; new.
40	Compressor Engineering Corp Top agencies DLA (Defense Logistics Agency)	$452,088	0.3%	Rank history: #21 in FY2021, #33 in FY2022, #11 in FY2023 and #21 in FY2025; down 29 since FY2023.
41	Kaeser Compressors, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Navy (Department of the Navy)	$436,667	0.3%	Rank history: not on the FY2021 list, #96 in FY2022, #51 in FY2023 and not on the FY2025 list; up 10 since FY2023.
42	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$405,275	0.3%	Rank history: #96 in FY2021, #32 in FY2022, #28 in FY2023 and not on the FY2025 list; down 14 since FY2023.
43	Stealth Supply, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$379,698	0.3%	Rank history: #51 in FY2021, not on the FY2022 list, #77 in FY2023 and not on the FY2025 list; up 34 since FY2023.
44	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$376,501	0.3%	Rank history: not on the FY2021 list, #65 in FY2022, #29 in FY2023 and #24 in FY2025; down 15 since FY2023.
45	Kurt J Lesker Co Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$351,780	0.3%	Rank history: #89 in FY2021, #48 in FY2022, #16 in FY2023 and not on the FY2025 list; down 29 since FY2023.
46	DC Precision LLC Top agencies DLA (Defense Logistics Agency)	$346,450	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
47	Atlas Copco Compressors LLC 2 awardees, including Beaconmedaes LLC and Edwards Vacuum LLC Top agencies VA (Department of Veterans Affairs) NASA (National Aeronautics and Space Administration) Treasury (Department of the Treasury)	$340,732	0.3%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2025; up 143 since FY2023.
48	EEI Group, LLC Top agencies VA (Department of Veterans Affairs)	$328,632	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 140 since FY2023.
49	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$327,432	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 293 since FY2023.
50	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$311,474	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2025; new.
51	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$302,619	0.2%	Rank history: #85 in FY2021, #79 in FY2022, #59 in FY2023 and #68 in FY2025; up 8 since FY2023.
52	J.h. Norton Company, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$300,986	0.2%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #33 in FY2025; up 2 since FY2023.
53	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$291,858	0.2%	Rank history: #37 in FY2021, #38 in FY2022, #57 in FY2023 and not on the FY2025 list; up 4 since FY2023.
54	US Supply Corporation Top agencies DLA (Defense Logistics Agency)	$286,587	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 129 since FY2023.
55	LBS Enterprises Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$285,068	0.2%	Rank history: #41 in FY2021, not on the FY2022 list, #52 in FY2023 and #74 in FY2025; down 3 since FY2023.
56	Industrial Heat Transfer, Inc. Top agencies Navy (Department of the Navy)	$283,014	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$277,747	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2025; up 65 since FY2023.
58	Marvin Engineering Co. Inc. Through Marvin Land Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$269,514	0.2%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
59	Cap 360 LLC Top agencies DLA (Defense Logistics Agency)	$253,890	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
60	Seahorse Defense Supply, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$253,109	0.2%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; up 159 since FY2023.
61	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$251,715	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 302 since FY2023.
62	Evoqua Water Technologies, LLC Top agencies Navy (Department of the Navy)	$242,805	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	C U Enterprises Ltd. Top agencies DLA (Defense Logistics Agency)	$233,356	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
64	Compliant Systems LLC Top agencies VA (Department of Veterans Affairs)	$230,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 51 since FY2023.
65	Coordinated Defense Supply Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$212,484	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 179 since FY2023.
66	Doosan Bobcat North America, Inc. Top agencies USAF (Department of the Air Force)	$211,848	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
67	Rasmussen Air & Gas Energy, Inc. Top agencies USAF (Department of the Air Force)	$211,205	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	The Boeing Company 3 awardees, including Boeing Distribution Services X, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$205,324	0.2%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list and #72 in FY2025; up 279 since FY2023.
69	Wrigglesworth Enterprises Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$205,278	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 134 since FY2023.
70	All Equipment Co Top agencies DLA (Defense Logistics Agency)	$202,452	0.1%	Rank history: #91 in FY2021, #40 in FY2022, #33 in FY2023 and #46 in FY2025; down 37 since FY2023.
71	Industrial Vacuum Equipment Corporation (Ivec) Top agencies Navy (Department of the Navy)	$199,600	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
72	Northern Flowers Company Top agencies USAF (Department of the Air Force)	$196,000	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
73	Federal Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$194,168	0.1%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
74	MGI Inc. Top agencies VA (Department of Veterans Affairs)	$189,090	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	Capp LLC Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$188,241	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 233 since FY2023.
76	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$186,100	0.1%	Rank history: #43 in FY2021, #34 in FY2022, #32 in FY2023 and not on the FY2025 list; down 44 since FY2023.
77	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$185,198	0.1%	Rank history: not on the FY2021 list, #51 in FY2022, not on the FY2023 list and not on the FY2025 list; up 76 since FY2023.
78	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$177,016	0.1%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2025; new.
79	Deval Life Cycle Support LLC Through Parts Life Inc. Top agencies Navy (Department of the Navy)	$174,650	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
80	OLB Associates LLC Top agencies DLA (Defense Logistics Agency)	$171,921	0.1%	Rank history: not on the FY2021 list, #84 in FY2022, not on the FY2023 list and not on the FY2025 list; up 74 since FY2023.
81	Har-Per Sales Solutions Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USDA (Department of Agriculture)	$164,777	0.1%	Rank history: #77 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
82	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy)	$164,700	0.1%	Rank history: #87 in FY2021, #53 in FY2022, not on the FY2023 list and #20 in FY2025; up 195 since FY2023.
83	Rogers Machinery Company Inc. 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$163,868	0.1%	Rank history: #55 in FY2021, #78 in FY2022, #13 in FY2023 and #45 in FY2025; down 70 since FY2023.
84	Technology International Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior) Army (Department of the Army)	$161,767	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 194 since FY2023.
85	Wright Tool Company LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$158,850	0.1%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
86	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$158,357	0.1%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
87	The Sherman Engineering Company Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$155,367	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
88	TECH Service Solutions LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$154,553	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 70 since FY2023.
89	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$154,281	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Aerospace Control Products, Inc. Top agencies DLA (Defense Logistics Agency)	$150,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
91	Triman Industries Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$145,947	0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #26 in FY2023 and not on the FY2025 list; down 65 since FY2023.
92	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$137,397	0.1%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2025; new.
93	Aviate Enterprises, Inc. Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) Navy (Department of the Navy)	$135,173	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Suncore Distribution LLC Top agencies DLA (Defense Logistics Agency)	$134,398	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 148 since FY2023.
95	Cornerstone Ondemand Inc. Through Semitorr Group, LLC Top agencies Navy (Department of the Navy)	$134,190	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$130,756	0.1%	Rank history: #46 in FY2021, not on the FY2022 list, #44 in FY2023 and not on the FY2025 list; down 52 since FY2023.
97	Dominion Air & Machinery Co. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$129,205	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
98	LN Curtis & Sons Top agencies USAF (Department of the Air Force)	$128,328	0.1%	Rank history: #31 in FY2021, not on the FY2022 list, #36 in FY2023 and not on the FY2025 list; down 62 since FY2023.
99	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$125,960	0.1%	Rank history: not on the FY2021 list, #85 in FY2022, not on the FY2023 list and not on the FY2025 list; up 52 since FY2023.
100	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$124,719	0.1%	Rank history: #99 in FY2021, #28 in FY2022, #48 in FY2023 and not on the FY2025 list; down 52 since FY2023.

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100 of 460 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 $135 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 PSC 4310 contractors in FY2024?

1. RIX Industries ($32.7M), 2. Argo Turboserve Corporation ($11.3M), 3. Curtiss-Wright Corporation ($11.1M), 4. Curtiss-Wright Electro-Mechanical Corp ($6.98M), 5. ITL LLC ($6.57M), 6. S I T Corporation ($3.76M), 7. Sauer Compressors Usa, Inc. ($3.26M), 8. Hydraulics International, Inc. ($2.51M), 9. Weeminuche Construction Authority ($2.02M), 10. Meggitt Defense Systems Inc. ($1.94M).

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