Top 100 Contractors in PSC 4920: Aircraft Maintenance and Repair Shop Specialized Equipment, FY2025

Name: Top 100 Contractors in PSC 4920: Aircraft Maintenance and Repair Shop Specialized Equipment, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 54% of FY2025 PSC 4920 contract dollars

Contract obligations: $475,486,950 Net of deobligations, by contracts coded PSC 4920
Contractors: 558 Parent companies with an obligation
Largest contractor: Atec Inc. $54.9 million, 11.2% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Atec Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$54,948,294	11.2%	Rank history: #54 in FY2021, #67 in FY2022, #61 in FY2023 and #4 in FY2024; up 3 since FY2024.
2	Northrop Grumman Systems Corporation 5 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$43,724,698	8.9%	Rank history: #2 in FY2021, #1 in FY2022, #3 in FY2023 and #7 in FY2024; up 5 since FY2024.
3	Teradyne Inc. Top agencies USAF (Department of the Air Force)	$39,493,560	8.0%	Rank history: #13 in FY2021, #4 in FY2022, #8 in FY2023 and #12 in FY2024; up 9 since FY2024.
4	CHG Group Inc Through Chemring Energetic Devices Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$37,623,811	7.7%	Rank history: not on the FY2021–FY2024 lists; new.
5	Lockheed Martin Corporation 9 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$23,407,668	4.8%	Rank history: #5 in FY2021, #23 in FY2022, #16 in FY2023 and #2 in FY2024; down 3 since FY2024.
6	The Boeing Company 7 awardees, including Argon ST, Inc. and Boeing Distribution, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$15,805,711	3.2%	Rank history: #1 in FY2021, #2 in FY2022, #1 in FY2023 and #1 in FY2024; down 5 since FY2024.
7	Hydraulics International, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$15,776,242	3.2%	Rank history: #4 in FY2021, #3 in FY2022, #10 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	Ganzcorp Investments Inc. Top agencies Navy (Department of the Navy)	$13,271,479	2.7%	Rank history: not on the FY2021–FY2024 lists; new.
9	Titan Robotics Inc. Top agencies USAF (Department of the Air Force)	$12,894,392	2.6%	Rank history: #18 in FY2021 and not on the FY2022–FY2024 lists; returned.
10	RTX Corporation 9 awardees, including Rockwell Collins, Inc., Raytheon Company and Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$10,163,891	2.1%	Rank history: not on the FY2021 list, #6 in FY2022, #2 in FY2023 and #11 in FY2024; up 1 since FY2024.
11	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,726,890	1.6%	Rank history: not on the FY2021 list, #7 in FY2022, not on the FY2023 list and #65 in FY2024; up 54 since FY2024.
12	Machine Tool Specialties, LLC Top agencies USAF (Department of the Air Force)	$7,721,401	1.6%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; up 7 since FY2024.
13	Textron Inc. 2 awardees, including Textron Systems Corporation and Bell Textron Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$7,511,540	1.5%	Rank history: #8 in FY2021, #12 in FY2022, #34 in FY2023 and #22 in FY2024; up 9 since FY2024.
14	Concepts Nrec, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,349,642	1.5%	Rank history: not on the FY2021 list, #95 in FY2022, #48 in FY2023 and #13 in FY2024; down 1 since FY2024.
15	Eaton Corporation Public Limited Company Through Mission Systems Davenport Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$7,326,614	1.5%	Rank history: not on the FY2021–FY2024 lists; new.
16	Atap Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$7,021,135	1.4%	Rank history: #40 in FY2021, #40 in FY2022, #12 in FY2023 and #18 in FY2024; up 2 since FY2024.
17	O & M Services LLC Top agencies USAF (Department of the Air Force)	$6,695,063	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
18	Testek LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,390,327	1.3%	Rank history: #26 in FY2021, #8 in FY2022, #4 in FY2023 and #16 in FY2024; down 2 since FY2024.
19	Cutting Dynamics, LLC Top agencies DLA (Defense Logistics Agency)	$5,632,377	1.1%	Rank history: #65 in FY2021, not on the FY2022–FY2023 lists and #21 in FY2024; up 2 since FY2024.
20	Undersea Sensor Systems Inc. Through Ultra Electronics Ice Inc. Top agencies Navy (Department of the Navy)	$5,451,477	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
21	Sexbull LLC Top agencies USAF (Department of the Air Force)	$4,860,481	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
22	Howell Instruments, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,787,852	1.0%	Rank history: #15 in FY2021, #14 in FY2022, #27 in FY2023 and #40 in FY2024; up 18 since FY2024.
23	Gage Machine Tool LLC Top agencies USAF (Department of the Air Force)	$4,750,258	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
24	Gallery Systems Inc. Through Petrosys Solutions, Inc. Top agencies USAF (Department of the Air Force)	$4,612,836	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
25	Starrag USA Inc. Top agencies USAF (Department of the Air Force)	$4,102,528	0.8%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 16 since FY2024.
26	Leonardo S.p.A. 2 awardees, including DRS Training & Control Systems, LLC and DRS Network & Imaging Systems LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$3,967,284	0.8%	Rank history: #90 in FY2021, not on the FY2022 list, #24 in FY2023 and #29 in FY2024; up 3 since FY2024.
27	Tyonek Machining and Fabrication, LLC Top agencies USAF (Department of the Air Force)	$3,961,969	0.8%	Rank history: #92 in FY2021, not on the FY2022–FY2023 lists and #54 in FY2024; up 27 since FY2024.
28	Boneal, Incorporated Top agencies USAF (Department of the Air Force)	$3,393,340	0.7%	Rank history: #72 in FY2021, not on the FY2022 list, #22 in FY2023 and #17 in FY2024; down 11 since FY2024.
29	Rohde & Schwarz GMBH & Co. Kommanditgesellschaft Through Rohde & Schwarz Usa, Inc. Top agencies USAF (Department of the Air Force)	$2,718,057	0.6%	Rank history: #21 in FY2021, #79 in FY2022, #23 in FY2023 and not on the FY2024 list; up 80 since FY2024.
30	Alvest (USA) Inc. Through TLD America Corporation Top agencies Navy (Department of the Navy)	$2,675,840	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
31	Tel-Instrument Electronics Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,664,207	0.5%	Rank history: #80 in FY2021, #16 in FY2022, #75 in FY2023 and #44 in FY2024; up 13 since FY2024.
32	Bauer, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,576,039	0.5%	Rank history: #23 in FY2021, #28 in FY2022, #21 in FY2023 and not on the FY2024 list; up 118 since FY2024.
33	Keysight Technologies, Inc. Top agencies USAF (Department of the Air Force)	$2,414,574	0.5%	Rank history: #52 in FY2021, #49 in FY2022, #37 in FY2023 and #28 in FY2024; down 5 since FY2024.
34	Tyonek Global Services LLC Top agencies USAF (Department of the Air Force)	$2,121,914	0.4%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #33 in FY2024; down 1 since FY2024.
35	Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$2,006,374	0.4%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and #23 in FY2024; down 12 since FY2024.
36	Kaiva Services, LLC Through Kaiva Vertical Lift, LLC Top agencies Navy (Department of the Navy)	$1,991,987	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
37	Sievert Electric Service and Sales Company Top agencies USAF (Department of the Air Force)	$1,884,152	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
38	Ametek Inc. Through Ametek Programmable Power, Inc. Top agencies USAF (Department of the Air Force)	$1,758,351	0.4%	Rank history: #100 in FY2021 and not on the FY2022–FY2024 lists; up 64 since FY2024.
39	Tevet LLC Top agencies USAF (Department of the Air Force)	$1,723,398	0.4%	Rank history: not on the FY2021–FY2023 lists and #51 in FY2024; up 12 since FY2024.
40	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,712,789	0.3%	Rank history: #70 in FY2021, #52 in FY2022, #40 in FY2023 and #43 in FY2024; up 3 since FY2024.
41	Rhinestahl Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,710,310	0.3%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; down 7 since FY2024.
42	Ultrax Aerospace Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$1,658,725	0.3%	Rank history: #82 in FY2021, #26 in FY2022, #36 in FY2023 and #86 in FY2024; up 44 since FY2024.
43	Drytech Inc. Top agencies Navy (Department of the Navy)	$1,658,266	0.3%	Rank history: #30 in FY2021, #32 in FY2022, #35 in FY2023 and #30 in FY2024; down 13 since FY2024.
44	F3 Solutions LLC Through F3 Logistics LLC Top agencies USAF (Department of the Air Force)	$1,641,786	0.3%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; up 25 since FY2024.
45	KDY Automation Solutions, Inc. Top agencies USAF (Department of the Air Force)	$1,559,000	0.3%	Rank history: #11 in FY2021, #18 in FY2022 and not on the FY2023–FY2024 lists; returned.
46	D. Gillette Industrial Service's Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,413,527	0.3%	Rank history: not on the FY2021 list, #71 in FY2022, #43 in FY2023 and not on the FY2024 list; up 172 since FY2024.
47	S & K Aerospace, LLC Top agencies Navy (Department of the Navy)	$1,349,850	0.3%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 26 since FY2024.
48	Avioss LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,283,650	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #13 in FY2023 and #31 in FY2024; down 17 since FY2024.
49	Astronics Corporation Through Astronics Test Systems Inc. Top agencies USAF (Department of the Air Force)	$1,239,540	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Ecoservices, LLC Top agencies Navy (Department of the Navy)	$1,237,015	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
51	The Handy Tool & Mfg. Co., Inc. Top agencies DLA (Defense Logistics Agency)	$1,162,350	0.2%	Rank history: not on the FY2021 list, #73 in FY2022, not on the FY2023 list and #80 in FY2024; up 29 since FY2024.
52	Group Four Transducers Inc. Top agencies Navy (Department of the Navy)	$1,137,094	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 4 since FY2024.
53	Agile Lifecycle Solutions JV, LLC Top agencies Navy (Department of the Navy)	$1,087,598	0.2%	Rank history: not on the FY2021 list, #10 in FY2022, #47 in FY2023 and #39 in FY2024; down 14 since FY2024.
54	BAE Systems 4 awardees, including BAE Systems Controls Inc. and BAE Systems Information & Electronic Systems Integration Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,082,158	0.2%	Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
55	Emerson Electric Co Through National Instruments Corp Top agencies USAF (Department of the Air Force)	$1,070,233	0.2%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2024; up 4 since FY2024.
56	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,036,533	0.2%	Rank history: #41 in FY2021, #45 in FY2022, #57 in FY2023 and #55 in FY2024; down 1 since FY2024.
57	Far West Contractors Corp Top agencies USAF (Department of the Air Force)	$1,013,501	0.2%	Rank history: not on the FY2021–FY2023 lists and #6 in FY2024; down 51 since FY2024.
58	General Electric Company 5 awardees, including Druck, LLC and GE Aviation Systems LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,008,619	0.2%	Rank history: #7 in FY2021, #59 in FY2022, #33 in FY2023 and #78 in FY2024; up 20 since FY2024.
59	Rolls-Royce Corporation 3 awardees, including Rolls-Royce Deutschland Ltd & Co KG Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$1,000,093	0.2%	Rank history: not on the FY2021–FY2023 lists and #96 in FY2024; up 37 since FY2024.
60	Teledyne Flir Unmanned Ground Systems Inc 2 awardees, including Teledyne Defense Electronics, LLC and Teledyne Controls, LLC Top agencies Navy (Department of the Navy)	$992,955	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #55 in FY2023 and not on the FY2024 list; returned.
61	Technology for Energy Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$955,302	0.2%	Rank history: #33 in FY2021, #21 in FY2022, #46 in FY2023 and not on the FY2024 list; returned.
62	Trade Mechanical Contractors Inc. Top agencies USAF (Department of the Air Force)	$925,000	0.2%	Rank history: #17 in FY2021 and not on the FY2022–FY2024 lists; returned.
63	Heatcon Inc. Through Heatcon Composite Systems, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$907,906	0.2%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; up 21 since FY2024.
64	Redtown Technical Services, LLC Top agencies Army (Department of the Army)	$896,923	0.2%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 18 since FY2024.
65	Foerster Instruments Inc Top agencies Navy (Department of the Navy)	$881,440	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Kuog Corp Top agencies USAF (Department of the Air Force)	$874,471	0.2%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #57 in FY2024; down 9 since FY2024.
67	Texas MGT Associates Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$856,172	0.2%	Rank history: not on the FY2021–FY2024 lists; up 124 since FY2024.
68	Fabrication Authorities International, LLC Top agencies USAF (Department of the Air Force)	$845,536	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Habco Industries LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$844,495	0.2%	Rank history: #81 in FY2021, #61 in FY2022, #59 in FY2023 and #98 in FY2024; up 29 since FY2024.
70	Jetechnology Solutions Inc. Top agencies USAF (Department of the Air Force)	$818,342	0.2%	Rank history: not on the FY2021 list, #25 in FY2022, not on the FY2023 list and #75 in FY2024; up 5 since FY2024.
71	Engineering and Software System Solutions, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$806,862	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
72	Schenck USA Corp. Top agencies Navy (Department of the Navy)	$780,550	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
73	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$759,061	0.2%	Rank history: not on the FY2021–FY2024 lists; up 112 since FY2024.
74	Genuen, LLC Top agencies Navy (Department of the Navy)	$753,066	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
75	Phillips Corporation Top agencies USAF (Department of the Air Force)	$676,393	0.1%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; down 14 since FY2024.
76	Ciqima Federal Services LLC Top agencies USAF (Department of the Air Force)	$670,828	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and #52 in FY2024; down 24 since FY2024.
77	Science Applications International Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$669,998	0.1%	Rank history: not on the FY2021–FY2024 lists; up 86 since FY2024.
78	CV International, Inc. Top agencies USAF (Department of the Air Force)	$655,651	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	Hexagon Manufacturing Intelligence Inc. Top agencies Navy (Department of the Navy)	$628,554	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
80	KD Precision Machining Inc. Top agencies Navy (Department of the Navy)	$618,700	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
81	MP Aero LLC Top agencies DLA (Defense Logistics Agency)	$607,590	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
82	Willerding Acquisition Corp. Top agencies USAF (Department of the Air Force)	$591,740	0.1%	Rank history: not on the FY2021 list, #15 in FY2022 and not on the FY2023–FY2024 lists; returned.
83	Testraulics Inc. Top agencies Navy (Department of the Navy)	$591,232	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Chant Engineering Co Inc. Top agencies DLA (Defense Logistics Agency)	$583,225	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
85	Federal Resources Supply Company, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$554,668	0.1%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #74 in FY2024; down 11 since FY2024.
86	BMC Software Inc. Through Circor Naval Solutions LLC Top agencies DLA (Defense Logistics Agency)	$549,263	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Aerospace Control Products, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$544,575	0.1%	Rank history: #49 in FY2021, #98 in FY2022, #63 in FY2023 and not on the FY2024 list; up 30 since FY2024.
88	PCI Aviation LLC Top agencies Navy (Department of the Navy)	$533,791	0.1%	Rank history: #46 in FY2021, #24 in FY2022, not on the FY2023 list and #15 in FY2024; down 73 since FY2024.
89	Empire Avionics Corp. Top agencies DLA (Defense Logistics Agency)	$526,951	0.1%	Rank history: #83 in FY2021, #88 in FY2022, not on the FY2023 list and #50 in FY2024; down 39 since FY2024.
90	Air Logistics and Engineering Solutions, LLC Top agencies USAF (Department of the Air Force)	$499,976	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Dit-Mco International LLC Top agencies USAF (Department of the Air Force)	$491,990	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Nobles Worldwide Inc. Top agencies DLA (Defense Logistics Agency)	$484,298	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	S & K Federal Services LLC Top agencies USAF (Department of the Air Force)	$452,884	0.1%	Rank history: not on the FY2021–FY2024 lists; up 112 since FY2024.
94	Kell-Strom Tool International, Inc. Top agencies DLA (Defense Logistics Agency)	$451,739	0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
95	Govsmart, Inc. Top agencies Navy (Department of the Navy)	$451,057	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Delflo Industries, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$446,850	0.1%	Rank history: #78 in FY2021 and not on the FY2022–FY2024 lists; up 45 since FY2024.
97	Aero Electronics Systems, Inc. Top agencies Navy (Department of the Navy)	$434,493	0.1%	Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2023–FY2024 lists; up 110 since FY2024.
98	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$430,815	0.1%	Rank history: not on the FY2021–FY2024 lists; up 151 since FY2024.
99	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$430,662	0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
100	KG Manufacturing LLC Top agencies Navy (Department of the Navy)	$422,882	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 558 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 $491 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.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2024 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC 4920 contractors in FY2025?

1. Atec Inc. ($54.9M), 2. Northrop Grumman Systems Corporation ($43.7M), 3. Teradyne Inc. ($39.5M), 4. CHG Group Inc ($37.6M), 5. Lockheed Martin Corporation ($23.4M), 6. The Boeing Company ($15.8M), 7. Hydraulics International, Inc. ($15.8M), 8. Ganzcorp Investments Inc. ($13.3M), 9. Titan Robotics Inc. ($12.9M), 10. RTX Corporation ($10.2M).

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