Top 100 Contractors in PSC 2520: Vehicular Power Transmission Components, FY2021

Name: Top 100 Contractors in PSC 2520: Vehicular Power Transmission Components, FY2021
Creator: GovTribe

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

The top 10 won 86% of FY2021 PSC 2520 contract dollars

Contract obligations: $239,302,747 Net of deobligations, by contracts coded PSC 2520
Contractors: 262 Parent companies with an obligation
Largest contractor: Allison Transmission Inc. $122 million, 47.8% 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	Allison Transmission Inc. Top agencies Army (Department of the Army)	$122,151,051	47.8%	Rank history: #2 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
2	L3Harris Technologies, Inc. 2 awardees, including Renk America LLC Top agencies Army (Department of the Army)	$66,281,765	25.9%	Rank history: #1 in FY2022, #3 in FY2023, not on the FY2024 list and #4 in FY2025; down 1 since FY2020.
3	Am General LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$9,624,547	3.8%	Rank history: #3 in FY2022, #4 in FY2023, #3 in FY2024 and #5 in FY2025; new, not ranked in FY2020.
4	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$5,783,035	2.3%	Rank history: #6 in FY2022, #5 in FY2023, #5 in FY2024 and #6 in FY2025; up 1 since FY2020.
5	Twin Disc, Incorporated Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$5,410,162	2.1%	Rank history: #9 in FY2022, #8 in FY2023, #2 in FY2024 and #31 in FY2025; up 15 since FY2020.
6	Management Solutions, L.C. Top agencies DLA (Defense Logistics Agency)	$2,896,989	1.1%	Rank history: not on the FY2022–FY2024 lists and #18 in FY2025; up 7 since FY2020.
7	VSE Corporation 2 awardees, including Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$2,211,728	0.9%	Rank history: #19 in FY2022, #32 in FY2023, #16 in FY2024 and not on the FY2025 list; up 11 since FY2020.
8	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$1,710,349	0.7%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
9	Air New Zealand Engineering Services Top agencies Navy (Department of the Navy)	$1,567,941	0.6%	Rank history: #24 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
10	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,487,720	0.6%	Rank history: #7 in FY2022, #7 in FY2023, #8 in FY2024 and #17 in FY2025; up 2 since FY2020.
11	Melton Sales & Service Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$996,983	0.4%	Rank history: #4 in FY2022, #15 in FY2023, #9 in FY2024 and not on the FY2025 list; down 2 since FY2020.
12	Honeywell International Inc. Top agencies DHS (Department of Homeland Security)	$992,144	0.4%	Rank history: #28 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; up 62 since FY2020.
13	MTP Drivetrain Services L.L.C. Top agencies Army (Department of the Army)	$973,192	0.4%	Rank history: #61 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
14	Big Changes, LLC Top agencies DLA (Defense Logistics Agency)	$899,040	0.4%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
15	Worldwide Equipment Enterprises Inc. Through Worldwide Equipment Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$778,272	0.3%	Rank history: #20 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; up 99 since FY2020.
16	Badger Truck and Automotive Group, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$734,970	0.3%	Rank history: #10 in FY2022, #28 in FY2023, #52 in FY2024 and #58 in FY2025; up 5 since FY2020.
17	Direct Line, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$649,094	0.3%	Rank history: #21 in FY2022, #22 in FY2023, #28 in FY2024 and #22 in FY2025; up 9 since FY2020.
18	Clarke Power Services, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$631,550	0.2%	Rank history: #13 in FY2022, #6 in FY2023, #10 in FY2024 and #3 in FY2025; down 8 since FY2020.
19	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$575,705	0.2%	Rank history: #8 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 149 since FY2020.
20	Penn Detroit Diesel Allison LLC Through Penn Power Group LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$545,953	0.2%	Rank history: #11 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
21	Houston Drive Train Vehicle Component Sales, Inc. Top agencies DLA (Defense Logistics Agency)	$479,516	0.2%	Rank history: #12 in FY2022, #20 in FY2023, #21 in FY2024 and #25 in FY2025; up 6 since FY2020.
22	DC Precision LLC Top agencies DLA (Defense Logistics Agency)	$448,670	0.2%	Rank history: not on the FY2022–FY2024 lists and #29 in FY2025; new, not ranked in FY2020.
23	The Carlyle Johnson Machine Co, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$437,163	0.2%	Rank history: #26 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
24	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$428,253	0.2%	Rank history: #16 in FY2022, #11 in FY2023, #18 in FY2024 and #9 in FY2025; up 18 since FY2020.
25	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$374,407	0.1%	Rank history: #32 in FY2022, #34 in FY2023, #25 in FY2024 and #13 in FY2025; up 14 since FY2020.
26	EOS Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$330,531	0.1%	Rank history: #35 in FY2022, #29 in FY2023, not on the FY2024 list and #46 in FY2025; down 2 since FY2020.
27	Machine Service, Inc. Through Prop Shaft Supply Inc. Top agencies DLA (Defense Logistics Agency)	$309,563	0.1%	Rank history: #17 in FY2022, #35 in FY2023, #39 in FY2024 and not on the FY2025 list; up 52 since FY2020.
28	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$307,988	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
29	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$305,035	0.1%	Rank history: #27 in FY2022, #14 in FY2023, #17 in FY2024 and #15 in FY2025; up 5 since FY2020.
30	Caterpillar Inc. 3 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$301,768	0.1%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
31	Government of Canada Through Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency)	$295,656	0.1%	Rank history: #14 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 208 since FY2020.
32	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$250,427	0.1%	Rank history: #39 in FY2022, #95 in FY2023, #81 in FY2024 and #78 in FY2025; up 8 since FY2020.
33	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$249,041	0.1%	Rank history: #66 in FY2022, not on the FY2023 list, #51 in FY2024 and #48 in FY2025; up 33 since FY2020.
34	RTX Corporation Through Data Link Solutions LLC Top agencies Navy (Department of the Navy)	$248,980	0.1%	Rank history: not on the FY2022–FY2025 lists; up 203 since FY2020.
35	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$240,865	0.1%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
36	The Rowland Company Top agencies Navy (Department of the Navy)	$231,154	0.1%	Rank history: #37 in FY2022, #83 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
37	Gear Wizzard Inc. Top agencies DLA (Defense Logistics Agency)	$219,224	0.1%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
38	RDO Holdings Co. Through RDO Agriculture Equipment Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$216,189	0.1%	Rank history: not on the FY2022 list, #98 in FY2023, #74 in FY2024 and not on the FY2025 list; up 67 since FY2020.
39	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$207,397	0.1%	Rank history: not on the FY2022 list, #80 in FY2023, #56 in FY2024 and not on the FY2025 list; up 98 since FY2020.
40	Airbus Americas Inc. Through Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$206,333	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	General Dynamics Corporation Through General Dynamics Land Systems - Canada Corporation Top agencies DLA (Defense Logistics Agency)	$203,142	0.1%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
42	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$202,895	0.1%	Rank history: #57 in FY2022, #27 in FY2023, #73 in FY2024 and #63 in FY2025; up 9 since FY2020.
43	Ranger Land Systems, Inc. Top agencies DHS (Department of Homeland Security)	$200,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
44	LOC Performance Products LLC Top agencies DLA (Defense Logistics Agency)	$199,682	0.1%	Rank history: #5 in FY2022, #58 in FY2023, #6 in FY2024 and #16 in FY2025; down 38 since FY2020.
45	Ohio Machinery Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$183,772	0.1%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2020.
46	W. W. Williams Company LLC the 2 awardees, including The W.w. Williams Company, LLC Top agencies DLA (Defense Logistics Agency)	$177,057	0.1%	Rank history: #30 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
47	Ronal Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$158,943	0.1%	Rank history: #52 in FY2022, #60 in FY2023, not on the FY2024 list and #60 in FY2025; up 9 since FY2020.
48	Giga, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$155,970	0.1%	Rank history: #25 in FY2022, #90 in FY2023, #41 in FY2024 and not on the FY2025 list; up 47 since FY2020.
49	Powertrain Rockford Inc. Through Rockford Powertrain Inc. Top agencies DLA (Defense Logistics Agency)	$154,613	0.1%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; up 37 since FY2020.
50	Precision Transmission Inc. Top agencies Army (Department of the Army)	$149,460	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Longhorn Regional Service Center, LLC Top agencies DLA (Defense Logistics Agency)	$147,535	0.1%	Rank history: #43 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2020.
52	Moore Pumps, Inc. Top agencies Navy (Department of the Navy)	$132,541	0.1%	Rank history: not on the FY2022–FY2025 lists; up 205 since FY2020.
53	Pines Quality Inc. Top agencies DLA (Defense Logistics Agency)	$129,996	0.1%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	Great Lakes Power Products Inc. Top agencies DLA (Defense Logistics Agency)	$126,227	<0.1%	Rank history: #68 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
55	Onodi Tool & Engineering Co Top agencies DLA (Defense Logistics Agency)	$126,191	<0.1%	Rank history: #60 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
56	Armor Metal Group Mason Incorporated Top agencies DLA (Defense Logistics Agency)	$114,293	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$109,538	<0.1%	Rank history: #74 in FY2022, #94 in FY2023, #53 in FY2024 and not on the FY2025 list; up 119 since FY2020.
58	A.g.h. Industries, LLC Top agencies DLA (Defense Logistics Agency)	$109,363	<0.1%	Rank history: #42 in FY2022, not on the FY2023 list, #77 in FY2024 and #55 in FY2025; up 11 since FY2020.
59	Zemarc Corporation Top agencies DLA (Defense Logistics Agency)	$105,200	<0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
60	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$100,465	<0.1%	Rank history: not on the FY2022 list, #48 in FY2023, #44 in FY2024 and #76 in FY2025; new, not ranked in FY2020.
61	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$99,010	<0.1%	Rank history: not on the FY2022 list, #72 in FY2023, #30 in FY2024 and #43 in FY2025; up 37 since FY2020.
62	Atap Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$95,026	<0.1%	Rank history: #53 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 223 since FY2020.
63	Tecmotiv Corporation Through Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency)	$91,958	<0.1%	Rank history: #29 in FY2022, not on the FY2023 list, #57 in FY2024 and not on the FY2025 list; down 56 since FY2020.
64	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$91,316	<0.1%	Rank history: not on the FY2022–FY2024 lists and #41 in FY2025; up 187 since FY2020.
65	L3 Technologies, Inc. Top agencies Army (Department of the Army)	$90,514	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$86,412	<0.1%	Rank history: #18 in FY2022, #43 in FY2023, #42 in FY2024 and #38 in FY2025; up 19 since FY2020.
67	CBT Corporation Top agencies DLA (Defense Logistics Agency)	$86,092	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
68	Dion International Trucks, LLC Top agencies DLA (Defense Logistics Agency)	$85,649	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 51 since FY2020.
69	Johnson & Towers Inc. Top agencies DLA (Defense Logistics Agency)	$83,278	<0.1%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
70	E.c. Styberg Engineering Company Top agencies DLA (Defense Logistics Agency)	$82,756	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 73 since FY2020.
71	Wollard International LLC Through TLD Wollard LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$82,365	<0.1%	Rank history: #33 in FY2022, #39 in FY2023, #43 in FY2024 and not on the FY2025 list; up 91 since FY2020.
72	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$79,539	<0.1%	Rank history: #81 in FY2022, not on the FY2023–FY2024 lists and #71 in FY2025; up 9 since FY2020.
73	Sewart Supply L.L.C. Top agencies DLA (Defense Logistics Agency)	$79,357	<0.1%	Rank history: not on the FY2022–FY2023 lists, #45 in FY2024 and not on the FY2025 list; down 27 since FY2020.
74	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$75,810	<0.1%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 118 since FY2020.
75	Fairlane Tool Company, Inc. Top agencies DLA (Defense Logistics Agency)	$75,282	<0.1%	Rank history: not on the FY2022–FY2023 lists, #86 in FY2024 and not on the FY2025 list; up 15 since FY2020.
76	American Material Handling, Inc. Top agencies Army (Department of the Army)	$71,424	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	C E Niehoff & Co Top agencies DLA (Defense Logistics Agency)	$70,087	<0.1%	Rank history: not on the FY2022–FY2023 lists, #67 in FY2024 and #67 in FY2025; up 58 since FY2020.
78	Moog Inc. Top agencies Navy (Department of the Navy)	$70,008	<0.1%	Rank history: not on the FY2022 list, #24 in FY2023, #14 in FY2024 and #11 in FY2025; new, not ranked in FY2020.
79	Lee Precision Machine Shop Inc. Top agencies DLA (Defense Logistics Agency)	$68,662	<0.1%	Rank history: not on the FY2022 list, #54 in FY2023, #36 in FY2024 and #77 in FY2025; down 56 since FY2020.
80	Jered LLC Top agencies DLA (Defense Logistics Agency)	$67,883	<0.1%	Rank history: #82 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
81	Critical Solutions International, LLC Top agencies DLA (Defense Logistics Agency)	$66,622	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 57 since FY2020.
82	Braketechnique Inc. Top agencies DLA (Defense Logistics Agency)	$65,621	<0.1%	Rank history: #85 in FY2022, not on the FY2023 list, #71 in FY2024 and not on the FY2025 list; up 179 since FY2020.
83	Libby Power Systems, LLC Top agencies DLA (Defense Logistics Agency)	$61,350	<0.1%	Rank history: not on the FY2022–FY2023 lists, #75 in FY2024 and #87 in FY2025; up 40 since FY2020.
84	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$60,040	<0.1%	Rank history: #48 in FY2022, #38 in FY2023, not on the FY2024 list and #83 in FY2025; new, not ranked in FY2020.
85	Norcatec LLC Top agencies DLA (Defense Logistics Agency)	$55,873	<0.1%	Rank history: not on the FY2022 list, #99 in FY2023, not on the FY2024 list and #14 in FY2025; new, not ranked in FY2020.
86	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$55,836	<0.1%	Rank history: not on the FY2022 list, #57 in FY2023, not on the FY2024 list and #57 in FY2025; down 15 since FY2020.
87	Kander Industries Inc. Top agencies DLA (Defense Logistics Agency)	$55,415	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	BBJ Electric Inc. Top agencies Treasury (Department of the Treasury)	$55,186	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$54,695	<0.1%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
90	Stealth Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$54,095	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Petit Tool Company Top agencies DLA (Defense Logistics Agency)	$53,554	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Tri Component Product Corp. Top agencies DLA (Defense Logistics Agency)	$51,486	<0.1%	Rank history: not on the FY2022 list, #56 in FY2023, #58 in FY2024 and #51 in FY2025; down 40 since FY2020.
93	Gigli Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$49,214	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
94	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$48,176	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	All-Safe Inc. Top agencies Navy (Department of the Navy)	$47,892	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 101 since FY2020.
96	Supliaereos USA LLC Top agencies DLA (Defense Logistics Agency)	$46,550	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 124 since FY2020.
97	Valor Holdings LLC Top agencies DLA (Defense Logistics Agency)	$45,129	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Seahorse Defense Supply, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$43,103	<0.1%	Rank history: not on the FY2022–FY2024 lists and #99 in FY2025; new, not ranked in FY2020.
99	Bhayana Brothers LLC Top agencies DHS (Department of Homeland Security)	$41,870	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Lifco Hydraulics Inc. Top agencies DOI (Department of the Interior)	$37,845	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

Show 75 more

100 of 262 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 $256 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 2520 contractors in FY2021?

1. Allison Transmission Inc. ($122M), 2. L3Harris Technologies, Inc. ($66.3M), 3. Am General LLC ($9.62M), 4. Oshkosh Corp ($5.78M), 5. Twin Disc, Incorporated ($5.41M), 6. Management Solutions, L.C. ($2.9M), 7. VSE Corporation ($2.21M), 8. Brighton Cromwell LLC ($1.71M), 9. Air New Zealand Engineering Services ($1.57M), 10. Janels Industries Inc. ($1.49M).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login