Top 100 Contractors in PSC 2815: Diesel Engines and Components, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Rolls-Royce Corporation Through Rolls-Royce Solutions America Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$160,018,705	22.6%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #10 in FY2025; up 11 since Aug 2024–Jul 2025.
2	Cummins Inc. 6 awardees, including Cummins Power Generation Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$131,201,518	18.6%	Rank history: #3 in FY2021, #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	Renk America LLC Top agencies Army (Department of the Army)	$115,215,680	16.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	EOS Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$106,302,272	15.0%	Rank history: #7 in FY2021, #23 in FY2022, #7 in FY2023, #6 in FY2024 and #2 in FY2025; up 3 since Aug 2024–Jul 2025.
5	Caterpillar Inc. Top agencies Army (Department of the Army) USDA (Department of Agriculture) Navy (Department of the Navy)	$49,367,373	7.0%	Rank history: #6 in FY2021, #9 in FY2022, #4 in FY2023, #12 in FY2024 and #11 in FY2025; up 8 since Aug 2024–Jul 2025.
6	Oshkosh Corporation 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$23,095,387	3.3%	Rank history: #2 in FY2021, #11 in FY2022, #21 in FY2023, #10 in FY2024 and #4 in FY2025; down 3 since Aug 2024–Jul 2025.
7	Hornet Acquisitionco LLC 4 awardees, including Fairbanks Morse, LLC and Bird-Johnson Propeller Company, LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) Army (Department of the Army)	$14,772,526	2.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #8 in FY2025; up 3 since Aug 2024–Jul 2025.
8	Bollinger Shipyards Lockport, L.L.C. Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$14,085,270	2.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Johnson & Towers LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$10,300,264	1.5%	Rank history: #21 in FY2021, #16 in FY2022, #10 in FY2023, #16 in FY2024 and #12 in FY2025; up 14 since Aug 2024–Jul 2025.
10	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$7,161,809	1.0%	Rank history: #8 in FY2021, #18 in FY2022, #6 in FY2023, #9 in FY2024 and #7 in FY2025; down 4 since Aug 2024–Jul 2025.
11	Mythics Inc. 2 awardees, including The W.w. Williams Company, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,906,257	0.8%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #46 in FY2025; up 48 since Aug 2024–Jul 2025.
12	Am General LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$5,022,126	0.7%	Rank history: #5 in FY2021, #1 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; down 10 since Aug 2024–Jul 2025.
13	Melton Sales & Service Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$3,929,871	0.6%	Rank history: #11 in FY2021, #12 in FY2022, #17 in FY2023, #17 in FY2024 and #13 in FY2025; up 7 since Aug 2024–Jul 2025.
14	Fincantieri Marine Systems North America, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$3,341,841	0.5%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #22 in FY2025; up 10 since Aug 2024–Jul 2025.
15	Pacific Power Group, LLC Top agencies DHS (Department of Homeland Security)	$2,973,879	0.4%	Rank history: #12 in FY2021, #5 in FY2022, #11 in FY2023, #7 in FY2024 and #15 in FY2025; up 1 since Aug 2024–Jul 2025.
16	Periparts Group Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,866,180	0.4%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 78 since Aug 2024–Jul 2025.
17	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$2,796,254	0.4%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #23 in FY2025; up 4 since Aug 2024–Jul 2025.
18	Atlanta Gear Works, LLC Top agencies Army (Department of the Army)	$2,708,592	0.4%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #14 in FY2024 and #21 in FY2025; up 13 since Aug 2024–Jul 2025.
19	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$2,700,271	0.4%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #26 in FY2025; up 8 since Aug 2024–Jul 2025.
20	Clarke Power Services, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,623,690	0.4%	Rank history: #32 in FY2021, #63 in FY2022, #69 in FY2023, #35 in FY2024 and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Penn Power Group, LLC Top agencies DLA (Defense Logistics Agency)	$2,222,422	0.3%	Rank history: #13 in FY2021, #8 in FY2022, #9 in FY2023, #28 in FY2024 and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Tecmotiv (Usa), Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,083,924	0.3%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #25 in FY2025; unchanged since Aug 2024–Jul 2025.
23	Artex Truck Center Inc. Top agencies DLA (Defense Logistics Agency)	$2,034,746	0.3%	Rank history: not on the FY2021 list, #89 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 133 since Aug 2024–Jul 2025.
24	The W.w. Williams Company, LLC 3 awardees Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$1,957,132	0.3%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #24 in FY2025; up 2 since Aug 2024–Jul 2025.
25	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$1,567,847	0.2%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023–FY2024 lists and #29 in FY2025; up 76 since Aug 2024–Jul 2025.
26	Optiplex LLC Top agencies DLA (Defense Logistics Agency)	$1,441,043	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
27	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,070,569	0.2%	Rank history: not on the FY2021 list, #99 in FY2022, not on the FY2023 list, #96 in FY2024 and not on the FY2025 list; up 68 since Aug 2024–Jul 2025.
28	NGH Retail LLC Top agencies DLA (Defense Logistics Agency)	$1,068,480	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
29	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$954,690	0.1%	Rank history: #46 in FY2021, #17 in FY2022, #32 in FY2023, #58 in FY2024 and #14 in FY2025; down 15 since Aug 2024–Jul 2025.
30	Fairlane Tool Company, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$851,604	0.1%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$769,087	0.1%	Rank history: #15 in FY2021, #43 in FY2022, #23 in FY2023, #44 in FY2024 and #18 in FY2025; down 13 since Aug 2024–Jul 2025.
32	Augusta Engine Parts, Inc. Top agencies DLA (Defense Logistics Agency)	$742,961	0.1%	Rank history: #62 in FY2021, #44 in FY2022, #26 in FY2023, #27 in FY2024 and #53 in FY2025; up 37 since Aug 2024–Jul 2025.
33	Holmes Tool and Engineering, Inc. Top agencies USAF (Department of the Air Force)	$647,670	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Critical Procurement LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$576,744	0.1%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 66 since Aug 2024–Jul 2025.
35	Timken Gears & Services Inc. Top agencies Navy (Department of the Navy)	$566,945	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	Philadelphia Electrical Equipment Co Top agencies DHS (Department of Homeland Security)	$566,496	0.1%	Rank history: #67 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$532,290	0.1%	Rank history: #40 in FY2021, #32 in FY2022, #31 in FY2023, #66 in FY2024 and #34 in FY2025; up 12 since Aug 2024–Jul 2025.
38	Dutch Valley Supply Co. Top agencies Navy (Department of the Navy)	$527,263	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Motor-Services Hugo Stamp, Inc. Top agencies Navy (Department of the Navy)	$494,188	0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #16 in FY2023, #29 in FY2024 and #30 in FY2025; down 10 since Aug 2024–Jul 2025.
40	General Motors Company 2 awardees, including GM Defense LLC Top agencies DLA (Defense Logistics Agency)	$471,320	0.1%	Rank history: #27 in FY2021, #33 in FY2022, #56 in FY2023, #46 in FY2024 and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41	Novex Enterprises Top agencies DLA (Defense Logistics Agency)	$460,393	0.1%	Rank history: #56 in FY2021, #38 in FY2022, #27 in FY2023, #52 in FY2024 and #44 in FY2025; up 11 since Aug 2024–Jul 2025.
42	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$447,314	0.1%	Rank history: #39 in FY2021, #35 in FY2022, #52 in FY2023, #64 in FY2024 and #28 in FY2025; down 6 since Aug 2024–Jul 2025.
43	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$400,674	0.1%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #74 in FY2025; up 19 since Aug 2024–Jul 2025.
44	Pines Quality Inc. Top agencies DLA (Defense Logistics Agency)	$400,091	0.1%	Rank history: not on the FY2021 list, #88 in FY2022, #100 in FY2023, #47 in FY2024 and #45 in FY2025; up 1 since Aug 2024–Jul 2025.
45	May Tool Inc. Top agencies DLA (Defense Logistics Agency)	$396,605	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
46	AD Inc of Milwaukee Top agencies Army (Department of the Army)	$389,454	0.1%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Supplycore LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$377,633	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023, #80 in FY2024 and #68 in FY2025; up 17 since Aug 2024–Jul 2025.
48	Big Jet, LLC Top agencies USAF (Department of the Air Force)	$369,930	0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Atech Inc. Top agencies USAF (Department of the Air Force)	$350,620	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Performance Diesel Inc. Top agencies DHS (Department of Homeland Security)	$331,182	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	Heico Corp Through Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$329,777	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	D M C O Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$311,755	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
53	A.M.S. Network LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$299,222	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	Ronald Hickey Top agencies DLA (Defense Logistics Agency)	$294,778	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Itag Enterprise LLC Top agencies Army (Department of the Army)	$293,853	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Aga Truck Parts, Inc. Top agencies DLA (Defense Logistics Agency)	$262,365	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	GL Power, Inc. Top agencies Navy (Department of the Navy)	$249,626	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	U.s. Hardware Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$247,336	<0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #40 in FY2025; down 20 since Aug 2024–Jul 2025.
59	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$241,198	<0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 3 since Aug 2024–Jul 2025.
60	Cavanaugh Government Group, LLC Top agencies DLA (Defense Logistics Agency)	$235,273	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 91 since Aug 2024–Jul 2025.
61	Mack Boring & Parts Co Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$222,452	<0.1%	Rank history: not on the FY2021 list, #68 in FY2022, #80 in FY2023, #22 in FY2024 and #48 in FY2025; down 17 since Aug 2024–Jul 2025.
62	Kyodo Shipping & Trading Corp USA Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$222,031	<0.1%	Rank history: not on the FY2021 list, #84 in FY2022, #97 in FY2023, not on the FY2024 list and #66 in FY2025; up 8 since Aug 2024–Jul 2025.
63	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$214,942	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 41 since Aug 2024–Jul 2025.
64	Boatswain's Locker I, Incorporated Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$213,837	<0.1%	Rank history: #52 in FY2021, #76 in FY2022, #65 in FY2023, #23 in FY2024 and #76 in FY2025; up 16 since Aug 2024–Jul 2025.
65	Washington Foundries Inc. Top agencies DLA (Defense Logistics Agency)	$209,747	<0.1%	Rank history: #55 in FY2021, not on the FY2022–FY2024 lists and #55 in FY2025; down 7 since Aug 2024–Jul 2025.
66	OLB Associates LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$199,504	<0.1%	Rank history: #94 in FY2021, #73 in FY2022, #45 in FY2023, #32 in FY2024 and #49 in FY2025; down 23 since Aug 2024–Jul 2025.
67	RDO Agriculture Equipment Co Top agencies DLA (Defense Logistics Agency)	$196,040	<0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #56 in FY2025; down 7 since Aug 2024–Jul 2025.
68	MTP Drivetrain Services, L.L.C. Top agencies Army (Department of the Army) Navy (Department of the Navy) DOJ (Department of Justice)	$179,591	<0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 20 since Aug 2024–Jul 2025.
69	Horst Engineering & Manufacturing Co Top agencies DLA (Defense Logistics Agency)	$176,905	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 77 since Aug 2024–Jul 2025.
70	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$170,779	<0.1%	Rank history: #65 in FY2021, #20 in FY2022, #77 in FY2023, #61 in FY2024 and #33 in FY2025; down 36 since Aug 2024–Jul 2025.
71	MXM Logistics LLC Top agencies DLA (Defense Logistics Agency)	$165,767	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Vim Industries, LLC Top agencies DLA (Defense Logistics Agency)	$163,940	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$163,335	<0.1%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2023–FY2024 lists and #41 in FY2025; down 22 since Aug 2024–Jul 2025.
74	Hawthorne Machinery Co. Top agencies Navy (Department of the Navy)	$160,115	<0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #91 in FY2025; up 34 since Aug 2024–Jul 2025.
75	Independent Rough Terrain Center LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$149,502	<0.1%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #94 in FY2025; up 35 since Aug 2024–Jul 2025.
76	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency)	$145,129	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #86 in FY2024 and #92 in FY2025; up 8 since Aug 2024–Jul 2025.
77	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$142,473	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Florida Ordnance Corporation Top agencies Army (Department of the Army)	$138,105	<0.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #5 in FY2025; down 74 since Aug 2024–Jul 2025.
79	Tronson Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$137,125	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$134,709	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 149 since Aug 2024–Jul 2025.
81	Robert E. Derecktor, Inc. Top agencies DHS (Department of Homeland Security)	$131,648	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$130,259	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Flagship Marine, Inc. Top agencies DHS (Department of Homeland Security)	$127,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Southeastern Equipment Company, Inc. Through Seco Parts & Equipment Co Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$120,687	<0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #83 in FY2023, not on the FY2024 list and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	Guardian Systems LLC Top agencies DHS (Department of Homeland Security)	$112,944	<0.1%	Rank history: #74 in FY2021, #46 in FY2022, #33 in FY2023, #43 in FY2024 and #52 in FY2025; down 39 since Aug 2024–Jul 2025.
86	Dcx-Chol Enterprises, Inc. Top agencies Army (Department of the Army)	$106,200	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Engine Power, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$105,779	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, not on the FY2024 list and #67 in FY2025; up 2 since Aug 2024–Jul 2025.
88	Semper Sozo Inc. Top agencies USAF (Department of the Air Force)	$105,700	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Aug 2024–Jul 2025.
89	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$100,519	<0.1%	Rank history: #83 in FY2021, not on the FY2022 list, #50 in FY2023, not on the FY2024 list and #71 in FY2025; down 14 since Aug 2024–Jul 2025.
90	Lansing Logistics LLC Top agencies DLA (Defense Logistics Agency)	$99,385	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	Western Branch Diesel, LLC Top agencies DHS (Department of Homeland Security)	$98,378	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$86,601	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023–FY2024 lists and #65 in FY2025; down 15 since Aug 2024–Jul 2025.
93	Siddons Martin Emergency Group, LLC Top agencies USAF (Department of the Air Force)	$85,307	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
94	Ohio Machinery Co Top agencies DLA (Defense Logistics Agency)	$84,953	<0.1%	Rank history: #28 in FY2021, #27 in FY2022, #34 in FY2023, #48 in FY2024 and #84 in FY2025; down 7 since Aug 2024–Jul 2025.
95	Carter Machinery Company, Incorporated 2 awardees Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$84,852	<0.1%	Rank history: not on the FY2021 list, #24 in FY2022, #59 in FY2023, #71 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
96	HDT Expeditionary Systems Inc. Top agencies USAF (Department of the Air Force)	$81,236	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; new, not ranked in Aug 2024–Jul 2025.
97	C & D Equipment Company, Inc. Top agencies DLA (Defense Logistics Agency)	$81,200	<0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 63 since Aug 2024–Jul 2025.
98	Haller's Repair Top agencies USAF (Department of the Air Force)	$75,815	<0.1%	Rank history: #98 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	American Fleet Inc. Top agencies USAF (Department of the Air Force)	$73,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
100	Spaires Inc. Top agencies DLA (Defense Logistics Agency)	$68,048	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 31 since Aug 2024–Jul 2025.

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 $707 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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