Top 100 Contractors in PSC 4310: Compressors and Vacuum Pumps, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC 4310: Compressors and Vacuum Pumps, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 69% of PSC 4310 contract dollars from July 2025 through June 2026

Contract obligations: $179,186,387 Net of deobligations, by contracts coded PSC 4310
Contractors: 415 Parent companies with an obligation
Largest contractor: Fairwinds Technologies LLC $35.7 million, 19.4% 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	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$35,732,419	19.4%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Curtiss-Wright Electro-Mechanical Corp 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$16,186,027	8.8%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #4 in FY2025; up 3 since Jul 2024–Jun 2025.
3	RIX Industries Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,623,187	7.4%	Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023, #1 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
4	Atlantic Diving Supply, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,471,836	7.3%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #50 in FY2025; up 29 since Jul 2024–Jun 2025.
5	ITL LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$13,016,006	7.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #2 in FY2025; down 2 since Jul 2024–Jun 2025.
6	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)	$9,727,126	5.3%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #9 in FY2025; up 1 since Jul 2024–Jun 2025.
7	Wright Tool Company LLC Top agencies Army (Department of the Army)	$8,108,590	4.4%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and #8 in FY2025; up 12 since Jul 2024–Jun 2025.
8	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$7,737,428	4.2%	Rank history: #2 in FY2021, #2 in FY2022, #2 in FY2023, #2 in FY2024 and #7 in FY2025; down 2 since Jul 2024–Jun 2025.
9	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,341,602	2.9%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #6 in FY2025; down 1 since Jul 2024–Jun 2025.
10	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$4,586,139	2.5%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #10 in FY2025; unchanged since Jul 2024–Jun 2025.
11	Amentum Holdings, Inc. Through Amentum Technology, Inc. Top agencies USAF (Department of the Air Force)	$3,914,222	2.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
12	Pacific Consolidated Industries LLC Top agencies DLA (Defense Logistics Agency)	$3,592,966	2.0%	Rank history: #10 in FY2021, #8 in FY2022, #4 in FY2023, #15 in FY2024 and #12 in FY2025; up 1 since Jul 2024–Jun 2025.
13	Bauer Compressors Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$2,515,426	1.4%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #34 in FY2025; up 17 since Jul 2024–Jun 2025.
14	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$2,500,977	1.4%	Rank history: #12 in FY2021, #10 in FY2022, #7 in FY2023, #8 in FY2024 and #19 in FY2025; up 6 since Jul 2024–Jun 2025.
15	Comairco Equipment Inc. Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$2,011,938	1.1%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Jul 2024–Jun 2025.
16	Rotating Machinery Services Inc. Top agencies USAF (Department of the Air Force)	$1,554,750	0.8%	Rank history: not on the FY2021 list, #77 in FY2022, #97 in FY2023, not on the FY2024 list and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
17	AAR Government Services Inc. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$1,237,664	0.7%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; up 1 since Jul 2024–Jun 2025.
18	Sauer Compressors Usa, Inc. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) USDA (Department of Agriculture)	$1,230,516	0.7%	Rank history: #22 in FY2021, not on the FY2022–FY2023 lists, #7 in FY2024 and #16 in FY2025; down 1 since Jul 2024–Jun 2025.
19	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal Facilities Logistics LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,210,131	0.7%	Rank history: not on the FY2021–FY2025 lists; up 212 since Jul 2024–Jun 2025.
20	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,187,628	0.6%	Rank history: #27 in FY2021, #22 in FY2022, #21 in FY2023, #33 in FY2024 and #31 in FY2025; up 14 since Jul 2024–Jun 2025.
21	Gardner Denver Nash LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,065,925	0.6%	Rank history: #8 in FY2021, #4 in FY2022, #8 in FY2023, #18 in FY2024 and #23 in FY2025; down 7 since Jul 2024–Jun 2025.
22	Compressor Engineering Corp Top agencies DLA (Defense Logistics Agency)	$1,028,553	0.6%	Rank history: #21 in FY2021, #33 in FY2022, #11 in FY2023, #40 in FY2024 and #21 in FY2025; up 1 since Jul 2024–Jun 2025.
23	Boneal, Incorporated Top agencies USAF (Department of the Air Force)	$890,883	0.5%	Rank history: #42 in FY2021, not on the FY2022 list, #55 in FY2023, not on the FY2024 list and #25 in FY2025; up 29 since Jul 2024–Jun 2025.
24	Burns & Mcdonnell Engineering Company, Inc. Top agencies USAF (Department of the Air Force)	$881,230	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
25	Arhab LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$665,895	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26	Rogers Machinery Company Inc. 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$640,477	0.3%	Rank history: #55 in FY2021, #78 in FY2022, #13 in FY2023, #83 in FY2024 and #45 in FY2025; up 88 since Jul 2024–Jun 2025.
27	Seahorse Defense Supply, LLC Top agencies DLA (Defense Logistics Agency)	$628,701	0.3%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #30 in FY2025; up 100 since Jul 2024–Jun 2025.
28	Lourdes Industries, Inc. Top agencies Navy (Department of the Navy)	$608,731	0.3%	Rank history: not on the FY2021 list, #20 in FY2022, not on the FY2023 list, #25 in FY2024 and #22 in FY2025; down 4 since Jul 2024–Jun 2025.
29	Industrial Heat Transfer, Inc. Top agencies Navy (Department of the Navy)	$590,700	0.3%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
30	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$521,721	0.3%	Rank history: not on the FY2021 list, #65 in FY2022, #29 in FY2023, #44 in FY2024 and #24 in FY2025; down 4 since Jul 2024–Jun 2025.
31	Weeminuche Construction Authority Through WCA Construction, LLC Top agencies DOI (Department of the Interior)	$502,033	0.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and not on the FY2025 list; down 19 since Jul 2024–Jun 2025.
32	Atap Inc. Top agencies USAF (Department of the Air Force)	$446,736	0.2%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #36 in FY2024 and #84 in FY2025; up 206 since Jul 2024–Jun 2025.
33	Grand Industries Inc. Top agencies DLA (Defense Logistics Agency)	$439,951	0.2%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Jul 2024–Jun 2025.
34	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$435,071	0.2%	Rank history: not on the FY2021–FY2025 lists; up 162 since Jul 2024–Jun 2025.
35	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency)	$413,117	0.2%	Rank history: not on the FY2021–FY2025 lists; up 186 since Jul 2024–Jun 2025.
36	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$388,165	0.2%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #36 in FY2025; up 8 since Jul 2024–Jun 2025.
37	TL Services, Inc. Top agencies VA (Department of Veterans Affairs)	$365,210	0.2%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; new, not ranked in Jul 2024–Jun 2025.
38	MES Service Company, LLC Top agencies USAF (Department of the Air Force)	$347,965	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
39	Aantilia LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$342,713	0.2%	Rank history: #38 in FY2021, #47 in FY2022, #64 in FY2023, #24 in FY2024 and #48 in FY2025; down 14 since Jul 2024–Jun 2025.
40	Acd, LLC Top agencies NASA (National Aeronautics and Space Administration)	$341,378	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$318,129	0.2%	Rank history: #20 in FY2021, #14 in FY2022, #12 in FY2023, #6 in FY2024 and #11 in FY2025; down 32 since Jul 2024–Jun 2025.
42	Lexair Inc. Top agencies Navy (Department of the Navy)	$289,287	0.2%	Rank history: not on the FY2021 list, #29 in FY2022, #23 in FY2023, not on the FY2024 list and #91 in FY2025; up 88 since Jul 2024–Jun 2025.
43	Tekton CC, LLC Top agencies VA (Department of Veterans Affairs)	$286,089	0.2%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 243 since Jul 2024–Jun 2025.
44	Moog Inc. Top agencies DLA (Defense Logistics Agency)	$275,693	0.1%	Rank history: not on the FY2021–FY2025 lists; up 141 since Jul 2024–Jun 2025.
45	Chesapeake Marine Refrigeration Corp Top agencies Navy (Department of the Navy)	$274,620	0.1%	Rank history: #87 in FY2021, #53 in FY2022, not on the FY2023 list, #82 in FY2024 and #20 in FY2025; down 24 since Jul 2024–Jun 2025.
46	Fluid Handling LLC Through Evoqua Water Technologies LLC Top agencies Navy (Department of the Navy)	$269,310	0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 154 since Jul 2024–Jun 2025.
47	W S Darley & Co Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$258,038	0.1%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Jul 2024–Jun 2025.
48	Dutch Valley Supply Co. Top agencies DOT (Department of Transportation) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$257,387	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 309 since Jul 2024–Jun 2025.
49	Sea-Western, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$256,898	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023, not on the FY2024 list and #58 in FY2025; new, not ranked in Jul 2024–Jun 2025.
50	Govage, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$253,568	0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023, not on the FY2024 list and #59 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	Honeywell International Inc. 3 awardees Top agencies DLA (Defense Logistics Agency)	$239,727	0.1%	Rank history: #57 in FY2021, #16 in FY2022, not on the FY2023–FY2024 lists and #88 in FY2025; up 30 since Jul 2024–Jun 2025.
52	Generon Igs, Inc. Top agencies Navy (Department of the Navy)	$235,800	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	Quintech Inc Top agencies VA (Department of Veterans Affairs)	$215,395	0.1%	Rank history: not on the FY2021–FY2025 lists; up 169 since Jul 2024–Jun 2025.
54	Cummins-Wagner Holdings, Inc. Top agencies GSA (General Services Administration)	$207,736	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
55	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$193,665	0.1%	Rank history: #96 in FY2021, #32 in FY2022, #28 in FY2023, #42 in FY2024 and not on the FY2025 list; up 16 since Jul 2024–Jun 2025.
56	ACM Elite, LLC Top agencies Army (Department of the Army)	$192,780	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
57	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$189,787	0.1%	Rank history: not on the FY2021–FY2025 lists; up 48 since Jul 2024–Jun 2025.
58	Dahme Mechanical Industries Inc. Top agencies VA (Department of Veterans Affairs)	$187,600	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; new, not ranked in Jul 2024–Jun 2025.
59	US Forces Tactical Supply LLC Top agencies Army (Department of the Army)	$185,928	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
60	LBS Enterprises Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$185,280	0.1%	Rank history: #41 in FY2021, not on the FY2022 list, #52 in FY2023, #55 in FY2024 and #74 in FY2025; unchanged since Jul 2024–Jun 2025.
61	Kaeser Compressors, Inc. Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration) USDA (Department of Agriculture)	$184,301	0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #51 in FY2023, #41 in FY2024 and not on the FY2025 list; down 2 since Jul 2024–Jun 2025.
62	Air Power Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$182,385	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
63	Technical Safety Services, LLC Top agencies VA (Department of Veterans Affairs)	$181,872	0.1%	Rank history: not on the FY2021–FY2025 lists; up 167 since Jul 2024–Jun 2025.
64	Federal Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$180,613	0.1%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #47 in FY2025; up 24 since Jul 2024–Jun 2025.
65	DC Precision LLC Top agencies DLA (Defense Logistics Agency)	$177,930	0.1%	Rank history: not on the FY2021–FY2023 lists, #46 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
66	Kay Kay LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$175,732	0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; down 12 since Jul 2024–Jun 2025.
67	General Compressor Inc. Top agencies USAF (Department of the Air Force)	$175,410	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
68	RCG of North Carolina, LLC Top agencies Army (Department of the Army)	$172,929	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Jul 2024–Jun 2025.
69	J.h. Norton Company, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$166,449	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023, #52 in FY2024 and #33 in FY2025; down 29 since Jul 2024–Jun 2025.
70	Jemco Inc. Top agencies USAF (Department of the Air Force)	$159,384	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
71	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$156,967	0.1%	Rank history: #85 in FY2021, #79 in FY2022, #59 in FY2023, #51 in FY2024 and #68 in FY2025; down 18 since Jul 2024–Jun 2025.
72	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$155,214	0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #52 in FY2025; down 41 since Jul 2024–Jun 2025.
73	Burhani Enterprises Inc. Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico) WHS (DOD Washington Headquarters Service)	$150,942	0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; up 109 since Jul 2024–Jun 2025.
74	Air Equipment Sales & Service Inc. Top agencies DOJ (Department of Justice)	$150,319	0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; new, not ranked in Jul 2024–Jun 2025.
75	Cullum and Brown of Kansas City Inc. Top agencies DOI (Department of the Interior)	$146,645	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Sterileco LLC Top agencies VA (Department of Veterans Affairs)	$145,853	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Clayton Associates Inc. Top agencies DLA (Defense Logistics Agency)	$145,660	0.1%	Rank history: #45 in FY2021, not on the FY2022–FY2024 lists and #85 in FY2025; up 7 since Jul 2024–Jun 2025.
78	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$143,633	0.1%	Rank history: #28 in FY2021, #6 in FY2022, #35 in FY2023, #19 in FY2024 and #26 in FY2025; down 56 since Jul 2024–Jun 2025.
79	Bravo, Inc. Top agencies Army (Department of the Army)	$142,468	0.1%	Rank history: not on the FY2021–FY2025 lists; up 43 since Jul 2024–Jun 2025.
80	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$142,216	0.1%	Rank history: #34 in FY2021, #44 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	Vastglobe Logistics LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$140,737	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 98 since Jul 2024–Jun 2025.
82	Grey Wolf Services LLC Top agencies Army (Department of the Army)	$137,257	0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	Company 91 LLC Top agencies Army (Department of the Army)	$135,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$134,319	0.1%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #44 in FY2025; down 37 since Jul 2024–Jun 2025.
85	Pride Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$132,192	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 13 since Jul 2024–Jun 2025.
86	Marvin Engineering Co. Inc. Through Marvin Land Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$131,950	0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and #53 in FY2025; down 43 since Jul 2024–Jun 2025.
87	C & D Equipment Company, Inc. Top agencies DLA (Defense Logistics Agency)	$130,925	0.1%	Rank history: #88 in FY2021, #97 in FY2022, #98 in FY2023, not on the FY2024 list and #79 in FY2025; down 11 since Jul 2024–Jun 2025.
88	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$130,533	0.1%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #29 in FY2025; down 61 since Jul 2024–Jun 2025.
89	Evolvee USA Inc. Top agencies USDA (Department of Agriculture)	$126,826	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
90	Save Again.com Top agencies Army (Department of the Army)	$125,200	0.1%	Rank history: not on the FY2021–FY2025 lists; up 51 since Jul 2024–Jun 2025.
91	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$120,042	0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #18 in FY2023, #30 in FY2024 and not on the FY2025 list; up 118 since Jul 2024–Jun 2025.
92	Jerome Fire Equipment Co., Inc. Top agencies VA (Department of Veterans Affairs)	$118,665	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
93	Stateline Solution LLC Top agencies USAF (Department of the Air Force)	$117,986	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
94	American Indian Health & Services Corporation 2 awardees, including Leslie Controls, Inc. and Circor Naval Solutions LLC Top agencies DLA (Defense Logistics Agency)	$117,110	0.1%	Rank history: not on the FY2021–FY2025 lists; up 236 since Jul 2024–Jun 2025.
95	C.h. Reed, Inc. Top agencies Navy (Department of the Navy)	$116,965	0.1%	Rank history: not on the FY2021–FY2025 lists; up 151 since Jul 2024–Jun 2025.
96	The Sherman Engineering Company Top agencies USDA (Department of Agriculture)	$112,877	0.1%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and not on the FY2025 list; up 21 since Jul 2024–Jun 2025.
97	BSE Performance, LLC Top agencies Navy (Department of the Navy)	$111,166	0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; down 8 since Jul 2024–Jun 2025.
98	Erie TECH Group LLC Top agencies NASA (National Aeronautics and Space Administration)	$110,270	0.1%	Rank history: not on the FY2021 list, #93 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	K5 Defense LLC Top agencies DLA (Defense Logistics Agency)	$110,194	0.1%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and not on the FY2025 list; down 63 since Jul 2024–Jun 2025.
100	Gryphon Technologies L.C. Through Resolute Industrial LLC Top agencies DOS (Department of State)	$109,436	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

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100 of 415 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 $184 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 Jul 2025–Jun 2026?

1. Fairwinds Technologies LLC ($35.7M), 2. Curtiss-Wright Electro-Mechanical Corp ($16.2M), 3. RIX Industries ($13.6M), 4. Atlantic Diving Supply, Inc. ($13.5M), 5. ITL LLC ($13M), 6. Meggitt Aerospace Limited ($9.73M), 7. Wright Tool Company LLC ($8.11M), 8. Argo Turboserve Corporation ($7.74M), 9. Johnson Controls Navy Systems, LLC ($5.34M), 10. ECI Defense Group, Inc. ($4.59M).

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