Top 100 Contractors in PSC 49: Maintenance/Repair Shop Equipment, FY2021

Name: Top 100 Contractors in PSC 49: Maintenance/Repair Shop Equipment, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 41% of FY2021 PSC 49 contract dollars

Contract obligations: $569,356,255 Net of deobligations, by contracts coded PSC 49 or a code under it
Contractors: 1,321 Parent companies with an obligation
Largest contractor: Isometrics Inc. $75.3 million, 12.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Isometrics Inc. Top agencies Army (Department of the Army)	$75,323,106	12.5%	Rank history: #3 in FY2022, #79 in FY2023, #72 in FY2024 and not on the FY2025 list; up 2 since FY2020.
2	The Boeing Company 8 awardees, including Insitu, Inc. and Boeing Distribution, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$37,143,676	6.2%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and not on the FY2025 list; unchanged since FY2020.
3	Northrop Grumman Corporation 8 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$24,891,658	4.1%	Rank history: #1 in FY2022, #2 in FY2023, #10 in FY2024 and #5 in FY2025; down 2 since FY2020.
4	Redtown LLC Through Redtown Technical Services, LLC Top agencies Army (Department of the Army)	$21,527,127	3.6%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
5	BAE Systems PLC 9 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Controls Inc. and BAE Systems Land & Armaments L.P. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$17,256,689	2.9%	Rank history: #8 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
6	Hydraulics International, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$14,772,016	2.5%	Rank history: #4 in FY2022, #20 in FY2023, #11 in FY2024 and #8 in FY2025; up 9 since FY2020.
7	Heil Trailer International LLC Top agencies Army (Department of the Army)	$14,752,432	2.5%	Rank history: #31 in FY2022, #8 in FY2023, #12 in FY2024 and #1 in FY2025; up 14 since FY2020.
8	Kratos Defense & Security Solutions, Inc. 2 awardees, including Kratos Technology & Training Solutions, Inc. and Kratos Unmanned Aerial Systems, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$14,210,548	2.4%	Rank history: #5 in FY2022, #3 in FY2023, #28 in FY2024 and not on the FY2025 list; up 4 since FY2020.
9	Lockheed Martin Corporation 13 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$13,494,212	2.2%	Rank history: #11 in FY2022, #23 in FY2023, #2 in FY2024 and #7 in FY2025; down 5 since FY2020.
10	GMS Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$11,568,369	1.9%	Rank history: #7 in FY2022, #15 in FY2023, #17 in FY2024 and #12 in FY2025; unchanged since FY2020.
11	Kratos Technology & Training Solutions, Inc. Top agencies USAF (Department of the Air Force)	$10,259,048	1.7%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
12	Teradyne Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,033,972	1.3%	Rank history: #9 in FY2022, #19 in FY2023, #20 in FY2024 and #4 in FY2025; up 13 since FY2020.
13	Agiliti Health Inc. Top agencies HHS (Department of Health and Human Services)	$7,670,250	1.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency) DOS (Department of State) DHS (Department of Homeland Security)	$7,442,591	1.2%	Rank history: #12 in FY2022, #12 in FY2023, #13 in FY2024 and #27 in FY2025; up 2 since FY2020.
15	L3Harris Technologies, Inc. 12 awardees, including L3 Technologies, Inc., Acron Aviation, Inc. and L3Harris Maritime Power & Energy Solutions, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$7,181,038	1.2%	Rank history: not on the FY2022–FY2025 lists; up 80 since FY2020.
16	General Electric Company 5 awardees, including Druck, LLC and GE Aviation Systems LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$7,010,819	1.2%	Rank history: not on the FY2022 list, #56 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2020.
17	Textron Inc. 4 awardees, including Textron Systems Corporation, Bell Textron Inc. and Textron Ground Support Equipment Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,834,911	1.1%	Rank history: #27 in FY2022, #57 in FY2023, #44 in FY2024 and #18 in FY2025; down 11 since FY2020.
18	Technical Communities, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$6,831,208	1.1%	Rank history: not on the FY2022–FY2025 lists; up 392 since FY2020.
19	KDY Automation Solutions, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$6,574,552	1.1%	Rank history: #39 in FY2022, not on the FY2023–FY2024 lists and #69 in FY2025; up 27 since FY2020.
20	Rockwell Collins, Inc. Top agencies Navy (Department of the Navy)	$6,188,880	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
21	ST Engineering Halter Marine and Offshore Inc. Through Ecoservices, LLC Top agencies Navy (Department of the Navy)	$5,934,135	1.0%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 276 since FY2020.
22	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DHS (Department of Homeland Security)	$5,361,666	0.9%	Rank history: #6 in FY2022, #4 in FY2023, #21 in FY2024 and not on the FY2025 list; down 17 since FY2020.
23	Howell Instruments, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,895,264	0.8%	Rank history: #29 in FY2022, #42 in FY2023, #68 in FY2024 and #30 in FY2025; up 3 since FY2020.
24	Merchants Automotive Group, LLC Top agencies DOJ (Department of Justice)	$4,642,384	0.8%	Rank history: #24 in FY2022, #11 in FY2023, #19 in FY2024 and #15 in FY2025; up 114 since FY2020.
25	Thales 2 awardees, including Thales Defense & Security Inc. and Thales AVS France SAS Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,590,000	0.8%	Rank history: #10 in FY2022 and not on the FY2023–FY2025 lists; up 86 since FY2020.
26	Trade Mechanical Contractors Inc. Top agencies USAF (Department of the Air Force)	$4,444,500	0.7%	Rank history: not on the FY2022–FY2024 lists and #98 in FY2025; new, not ranked in FY2020.
27	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$4,371,767	0.7%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
28	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$4,179,009	0.7%	Rank history: #21 in FY2022, #9 in FY2023, #16 in FY2024 and #36 in FY2025; up 4 since FY2020.
29	Titan Robotics Inc. Top agencies USAF (Department of the Air Force)	$4,070,000	0.7%	Rank history: #23 in FY2022, not on the FY2023–FY2024 lists and #10 in FY2025; new, not ranked in FY2020.
30	Rhinestahl Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,826,030	0.6%	Rank history: #42 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
31	Products Support, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,614,157	0.6%	Rank history: #53 in FY2022, not on the FY2023 list, #59 in FY2024 and not on the FY2025 list; up 174 since FY2020.
32	Heico Aerospace Corporat 3 awardees, including Robertson Fuel Systems, L.L.C., Seal Dynamics LLC and Research Electronics International, L.L.C. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOE (Department of Energy)	$2,768,909	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Rohde & Schwarz GMBH & Co. KG Through Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force)	$2,735,753	0.5%	Rank history: not on the FY2022 list, #36 in FY2023, not on the FY2024 list and #51 in FY2025; new, not ranked in FY2020.
34	Science Applications International Corporation 3 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,689,607	0.4%	Rank history: #13 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
35	ARI Phoenix Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) GSA (General Services Administration)	$2,642,436	0.4%	Rank history: #76 in FY2022, #38 in FY2023, #37 in FY2024 and #57 in FY2025; up 51 since FY2020.
36	Bauer, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$2,633,805	0.4%	Rank history: #51 in FY2022, #31 in FY2023, not on the FY2024 list and #54 in FY2025; down 2 since FY2020.
37	R.s.l. Electronics Limited Through RSL Electronics USA Inc. Top agencies USAF (Department of the Air Force)	$2,604,362	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	R.p. Gatta, Inc. Top agencies USAF (Department of the Air Force)	$2,517,069	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
39	VRC Metal Systems, LLC Top agencies Navy (Department of the Navy)	$2,500,894	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Testek LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$2,392,261	0.4%	Rank history: #19 in FY2022, #7 in FY2023, #32 in FY2024 and #23 in FY2025; down 23 since FY2020.
41	F3 Solutions LLC Top agencies USAF (Department of the Air Force)	$2,386,051	0.4%	Rank history: not on the FY2022 list, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
42	Archer Technologies International, Incorporated Top agencies Navy (Department of the Navy)	$2,357,472	0.4%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 131 since FY2020.
43	Druck, LLC Top agencies Navy (Department of the Navy)	$2,308,860	0.4%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Safespill Systems LLC Top agencies Navy (Department of the Navy)	$2,304,198	0.4%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
45	Industrial Automation Inc. Top agencies Navy (Department of the Navy)	$2,276,262	0.4%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
46	Chant Engineering Co Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,180,551	0.4%	Rank history: not on the FY2022 list, #37 in FY2023, not on the FY2024 list and #70 in FY2025; up 204 since FY2020.
47	Technology for Energy Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,117,945	0.4%	Rank history: #43 in FY2022, #76 in FY2023, not on the FY2024 list and #97 in FY2025; up 1 since FY2020.
48	Drytech Inc. Top agencies Navy (Department of the Navy)	$2,113,911	0.4%	Rank history: #59 in FY2022, #59 in FY2023, #54 in FY2024 and #66 in FY2025; up 15 since FY2020.
49	Megawattage LLC Top agencies DHS (Department of Homeland Security)	$2,105,928	0.4%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
50	The Entwistle Trust Through The Entwistle Company LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,104,705	0.3%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; up 196 since FY2020.
51	X Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,089,470	0.3%	Rank history: not on the FY2022–FY2025 lists; up 58 since FY2020.
52	BAE Systems Land & Armaments L.P. 5 awardees, including BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force)	$1,954,713	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Rockwell Collins-ESA Vision Systems Limited Liability Compan Through Collins Elbit Vision Systems, LLC Top agencies Navy (Department of the Navy)	$1,867,251	0.3%	Rank history: #26 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2020.
54	Atap Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,817,107	0.3%	Rank history: #64 in FY2022, #21 in FY2023, #29 in FY2024 and #14 in FY2025; up 22 since FY2020.
55	Terydon Inc. Top agencies Navy (Department of the Navy)	$1,809,150	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Napa Sierra Top agencies Army (Department of the Army)	$1,790,333	0.3%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
57	Malabar Top agencies Navy (Department of the Navy)	$1,754,836	0.3%	Rank history: not on the FY2022–FY2025 lists; up 111 since FY2020.
58	Aeroforge, Inc. Top agencies Navy (Department of the Navy)	$1,707,156	0.3%	Rank history: not on the FY2022–FY2025 lists; up 64 since FY2020.
59	Eaton Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$1,659,462	0.3%	Rank history: #52 in FY2022, #48 in FY2023, #87 in FY2024 and not on the FY2025 list; up 49 since FY2020.
60	Cobham Advanced Electron 3 awardees, including Mission Systems Davenport Inc. and Caes Systems LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,639,946	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,612,615	0.3%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
62	Blade Diagnostics Corporation Top agencies USAF (Department of the Air Force)	$1,612,501	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	TLD America Corporation Top agencies Navy (Department of the Navy)	$1,577,511	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Snap-On Incorporated Through Idsc Holdings LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$1,440,671	0.2%	Rank history: #22 in FY2022, #29 in FY2023, #33 in FY2024 and not on the FY2025 list; down 42 since FY2020.
65	Seyer Industries, Inc. Top agencies Navy (Department of the Navy)	$1,424,079	0.2%	Rank history: not on the FY2022 list, #40 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
66	International Service Contractors LLC Top agencies DHS (Department of Homeland Security)	$1,397,289	0.2%	Rank history: #45 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2020.
67	National Instruments Corp Top agencies USAF (Department of the Air Force)	$1,396,466	0.2%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
68	Parts Life Inc. 2 awardees, including Deval Life Cycle Support LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,390,544	0.2%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
69	Carl Amber Brian Isaiah and Associates Co. Top agencies DOJ (Department of Justice)	$1,361,173	0.2%	Rank history: #55 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
70	Greene Machine & Manufacturing Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,351,779	0.2%	Rank history: #94 in FY2022, #24 in FY2023, #83 in FY2024 and not on the FY2025 list; up 5 since FY2020.
71	Aerobotix Inc. Top agencies Navy (Department of the Navy)	$1,299,457	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Warfighter Focused Logistics Inc. Top agencies DLA (Defense Logistics Agency)	$1,256,420	0.2%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
73	PCI Aviation LLC Top agencies Navy (Department of the Navy)	$1,232,130	0.2%	Rank history: #46 in FY2022, not on the FY2023 list, #31 in FY2024 and #3 in FY2025; down 1 since FY2020.
74	Tessec LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,227,874	0.2%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
75	Alcoa Inc. Through Howmet Global Fastening Systems Inc. Top agencies DLA (Defense Logistics Agency)	$1,197,990	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Aantilia LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,182,559	0.2%	Rank history: not on the FY2022–FY2025 lists; up 271 since FY2020.
77	Aerospace Control Products, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,182,477	0.2%	Rank history: not on the FY2022–FY2025 lists; up 59 since FY2020.
78	Tower Facility Management, LLC Top agencies NRC (Nuclear Regulatory Commission)	$1,170,000	0.2%	Rank history: not on the FY2022–FY2025 lists; down 42 since FY2020.
79	Koch Enterprises Inc. Through George Koch Sons LLC Top agencies Navy (Department of the Navy)	$1,129,402	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Sunbelt Design & Development, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,095,480	0.2%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 43 since FY2020.
81	Texas MGT Associates Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,092,581	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Transdigm Group Incorporated 5 awardees, including Breeze-Eastern LLC, Transdigm Inc. and Champion Aerospace LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$1,082,791	0.2%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
83	Heatcon, Inc. Through Heatcon Composite Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,048,444	0.2%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
84	Keysight Technologies, Inc. Top agencies USAF (Department of the Air Force)	$1,031,671	0.2%	Rank history: #73 in FY2022, #60 in FY2023, #50 in FY2024 and #55 in FY2025; new, not ranked in FY2020.
85	Tyonek Native Corporatio 4 awardees, including Tyonek Engineering & Agile Manufacturing LLC and Tyonek Machining and Fabrication, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$987,928	0.2%	Rank history: #41 in FY2022, #45 in FY2023, #62 in FY2024 and not on the FY2025 list; down 38 since FY2020.
86	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$970,429	0.2%	Rank history: #48 in FY2022, #46 in FY2023, #40 in FY2024 and not on the FY2025 list; down 20 since FY2020.
87	Atec Inc. 3 awardees, including Celtech Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$898,153	0.1%	Rank history: not on the FY2022–FY2023 lists, #5 in FY2024 and #2 in FY2025; up 6 since FY2020.
88	A.s.e., Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$896,099	0.1%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
89	Ametek Inc. 6 awardees, including Ametek Programmable Power, Inc., Ametek SCP Inc. and Mocon Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$878,296	0.1%	Rank history: #67 in FY2022, not on the FY2023 list, #60 in FY2024 and #63 in FY2025; up 32 since FY2020.
90	Fastening Systems International Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$874,227	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	The Day & Zimmermann Group, Inc. Through Sunrise Beach Corporation Top agencies DOJ (Department of Justice)	$869,376	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Daniels Manufacturing Corporation Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$868,438	0.1%	Rank history: #75 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 59 since FY2020.
93	Boneal, Incorporated 2 awardees Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$842,393	0.1%	Rank history: not on the FY2022 list, #35 in FY2023, #36 in FY2024 and #42 in FY2025; down 40 since FY2020.
94	Military Petroleum and Water Systems Inc. Top agencies DLA (Defense Logistics Agency)	$826,063	0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
95	Midwest Tube Fabricators Inc. Top agencies DLA (Defense Logistics Agency)	$815,732	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
96	Dinamec Systems, LLC Top agencies Army (Department of the Army)	$815,446	0.1%	Rank history: #92 in FY2022, #98 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
97	Williamsrdm, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$772,913	0.1%	Rank history: not on the FY2022–FY2025 lists; up 204 since FY2020.
98	Rolls-Royce Military Aero Engines Ltd 5 awardees, including Rolls-Royce Marine North America Inc., Rolls-Royce Corporation and Rolls-Royce Deutschland Ltd & Co KG Top agencies Navy (Department of the Navy) DOT (Department of Transportation) DLA (Defense Logistics Agency)	$758,840	0.1%	Rank history: #88 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
99	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$750,785	0.1%	Rank history: not on the FY2022 list, #82 in FY2023, not on the FY2024 list and #78 in FY2025; new, not ranked in FY2020.
100	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$749,071	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 1,321 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 49

Code	Net obligations	Largest contractor
4920 Aircraft Maintenance and Repair Shop Specialized Equipment	$299,355,015	The Boeing Company
4930 Lubrication and Fuel Dispensing Equipment	$111,387,633	Isometrics Inc.
4940 Miscellaneous Maintenance and Repair Shop Specialized Equipment	$59,399,032	GMS Industrial Supply, Inc.
4910 Motor Vehicle Maintenance and Repair Shop Specialized Equipment	$51,417,463	Oshkosh Corp
4933 Weapons Maintenance and Repair Shop Specialized Equipment	$14,338,316	BAE Systems PLC
4935 Guided Missile Maintenance, Repair, and Checkout Specialized Equipment	$3,190,916	Thomas Electronics, Inc.
4931 Fire Control Maintenance and Repair Shop Specialized Equipment	$1,365,504	Hatfield and Company, Inc.
4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment	$1,258,714	Ametek Inc.

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 $602 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 49 contractors in FY2021?

1. Isometrics Inc. ($75.3M), 2. The Boeing Company ($37.1M), 3. Northrop Grumman Corporation ($24.9M), 4. Redtown LLC ($21.5M), 5. BAE Systems PLC ($17.3M), 6. Hydraulics International, Inc. ($14.8M), 7. Heil Trailer International LLC ($14.8M), 8. Kratos Defense & Security Solutions, Inc. ($14.2M), 9. Lockheed Martin Corporation ($13.5M), 10. GMS Industrial Supply, Inc. ($11.6M).

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