Top 100 Contractors in PSC 6620: Engine Instruments, FY2021

Name: Top 100 Contractors in PSC 6620: Engine Instruments, FY2021
Creator: GovTribe

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

The top 10 won 80% of FY2021 PSC 6620 contract dollars

Contract obligations: $44,832,973 Net of deobligations, by contracts coded PSC 6620
Contractors: 180 Parent companies with an obligation
Largest contractor: Kohler Co. $15 million, 31.6% 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	Kohler Co. 2 awardees Top agencies DOT (Department of Transportation)	$15,033,224	31.6%	Rank history: #1 in FY2022, #1 in FY2023, #4 in FY2024 and #27 in FY2025; up 1 since FY2020.
2	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$7,827,418	16.4%	Rank history: #6 in FY2022, #9 in FY2023, #14 in FY2024 and not on the FY2025 list; up 11 since FY2020.
3	Honeywell International Inc. 5 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,500,176	9.5%	Rank history: #9 in FY2022, #8 in FY2023, not on the FY2024 list and #1 in FY2025; down 2 since FY2020.
4	General Nucleonics, Inc. Top agencies Navy (Department of the Navy)	$2,687,735	5.6%	Rank history: #2 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
5	General Electric Company 3 awardees, including Unison Industries LLC Top agencies DLA (Defense Logistics Agency)	$2,617,882	5.5%	Rank history: #5 in FY2022, #7 in FY2023, #5 in FY2024 and #22 in FY2025; up 5 since FY2020.
6	Parker-Hannifin Corporation 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,989,475	4.2%	Rank history: #20 in FY2022, #4 in FY2023, #3 in FY2024 and not on the FY2025 list; up 3 since FY2020.
7	Guerrero Professional Services, Inc. Top agencies DLA (Defense Logistics Agency)	$1,186,400	2.5%	Rank history: #4 in FY2022, not on the FY2023 list, #10 in FY2024 and #2 in FY2025; up 26 since FY2020.
8	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$951,419	2.0%	Rank history: #7 in FY2022, #16 in FY2023, #21 in FY2024 and not on the FY2025 list; down 1 since FY2020.
9	Westbase Inc Through Phaostron Instrument and Electronic Company Top agencies DLA (Defense Logistics Agency)	$786,535	1.7%	Rank history: #10 in FY2022, #17 in FY2023, #7 in FY2024 and #17 in FY2025; up 2 since FY2020.
10	WKF (Friedman) Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$695,271	1.5%	Rank history: not on the FY2022–FY2024 lists and #65 in FY2025; up 2 since FY2020.
11	BAE Systems Land & Armaments L.P. Through BAE Systems Information and Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy)	$532,950	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Teupen Maschinenbau GMBH Top agencies DOS (Department of State)	$411,879	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	King Nutronics Corporation Top agencies Navy (Department of the Navy)	$385,179	0.8%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
14	BAE Systems PLC Through BAE Systems Information and Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy)	$380,027	0.8%	Rank history: #8 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
15	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$369,949	0.8%	Rank history: #15 in FY2022, #14 in FY2023, #16 in FY2024 and #13 in FY2025; new, not ranked in FY2020.
16	Greenwich AeroGroup Inc. Through Aero Precision Industries LLC Top agencies DLA (Defense Logistics Agency)	$361,487	0.8%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
17	The Boeing Company 2 awardees, including Boeing Distribution, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$295,585	0.6%	Rank history: #63 in FY2022, not on the FY2023 list, #30 in FY2024 and #11 in FY2025; down 2 since FY2020.
18	Jamaica Bearings Co., Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$241,157	0.5%	Rank history: not on the FY2022 list, #13 in FY2023, #51 in FY2024 and #7 in FY2025; up 1 since FY2020.
19	Esco Technologies Inc. Through Vacco Industries Top agencies Navy (Department of the Navy)	$236,500	0.5%	Rank history: not on the FY2022–FY2025 lists; up 80 since FY2020.
20	Danaher Corporation Through Pall Aeropower Corporation Top agencies DLA (Defense Logistics Agency)	$233,861	0.5%	Rank history: #44 in FY2022, #19 in FY2023, #40 in FY2024 and not on the FY2025 list; up 6 since FY2020.
21	EHB Supply Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$195,323	0.4%	Rank history: #23 in FY2022, #25 in FY2023, #42 in FY2024 and #41 in FY2025; new, not ranked in FY2020.
22	Clark Brothers Instrument Co Top agencies DLA (Defense Logistics Agency)	$171,998	0.4%	Rank history: #32 in FY2022, #33 in FY2023, #39 in FY2024 and #39 in FY2025; up 3 since FY2020.
23	Hood Technology Corp Top agencies Navy (Department of the Navy)	$167,000	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Lockheed Martin Corporation Through Sikorsky Aircraft Corporation Top agencies DLA (Defense Logistics Agency)	$163,575	0.3%	Rank history: #19 in FY2022, #18 in FY2023, #6 in FY2024 and #38 in FY2025; up 4 since FY2020.
25	BBA Aviation PLC Through Ontic Engineering & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$160,633	0.3%	Rank history: #11 in FY2022, #6 in FY2023, #32 in FY2024 and not on the FY2025 list; down 20 since FY2020.
26	Eclypse International Corporation Top agencies USAF (Department of the Air Force)	$139,934	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Kulite Semiconductor Products Inc. Top agencies DLA (Defense Logistics Agency)	$138,592	0.3%	Rank history: #28 in FY2022, #28 in FY2023, #38 in FY2024 and not on the FY2025 list; down 7 since FY2020.
28	Ives Equipment, LLC Top agencies Navy (Department of the Navy)	$136,977	0.3%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 138 since FY2020.
29	Mod-A-Can Inc. Top agencies DLA (Defense Logistics Agency)	$125,765	0.3%	Rank history: #29 in FY2022, #27 in FY2023, #50 in FY2024 and #35 in FY2025; up 21 since FY2020.
30	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$112,877	0.2%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
31	New Phoenix Aerospace Inc. Top agencies DLA (Defense Logistics Agency)	$93,480	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
32	Aircraft Instruments Co Top agencies DLA (Defense Logistics Agency)	$93,340	0.2%	Rank history: #22 in FY2022, #21 in FY2023, #25 in FY2024 and #32 in FY2025; down 15 since FY2020.
33	Gigli Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$86,052	0.2%	Rank history: #21 in FY2022, #15 in FY2023, #27 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
34	Phaostron Instrument and Electronic Company Top agencies DLA (Defense Logistics Agency)	$84,767	0.2%	Rank history: not on the FY2022–FY2024 lists and #31 in FY2025; new, not ranked in FY2020.
35	Aviation Procurement Systems, LLC Top agencies DLA (Defense Logistics Agency)	$77,400	0.2%	Rank history: not on the FY2022 list, #57 in FY2023, #58 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
36	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$76,095	0.2%	Rank history: not on the FY2022 list, #54 in FY2023, not on the FY2024 list and #63 in FY2025; new, not ranked in FY2020.
37	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$73,214	0.2%	Rank history: #66 in FY2022, #37 in FY2023, #29 in FY2024 and #82 in FY2025; up 19 since FY2020.
38	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$72,574	0.2%	Rank history: #82 in FY2022, not on the FY2023 list, #68 in FY2024 and #55 in FY2025; up 4 since FY2020.
39	Norcatec LLC Top agencies DLA (Defense Logistics Agency)	$71,889	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
40	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$71,183	0.1%	Rank history: #39 in FY2022, #41 in FY2023, #49 in FY2024 and #67 in FY2025; down 16 since FY2020.
41	Ohio Machinery Co Top agencies DLA (Defense Logistics Agency)	$70,226	0.1%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and not on the FY2025 list; up 81 since FY2020.
42	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$67,057	0.1%	Rank history: #70 in FY2022, not on the FY2023 list, #100 in FY2024 and #83 in FY2025; up 32 since FY2020.
43	Seyer Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$66,097	0.1%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Aero Technical Components, Inc. Top agencies DHS (Department of Homeland Security)	$65,942	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$62,312	0.1%	Rank history: #83 in FY2022, not on the FY2023–FY2024 lists and #45 in FY2025; new, not ranked in FY2020.
46	Kelly Manufacturing Company Top agencies USAF (Department of the Air Force)	$57,870	0.1%	Rank history: not on the FY2022–FY2025 lists; up 107 since FY2020.
47	The Timken Company Through Timken Gears & Services Inc. Top agencies DLA (Defense Logistics Agency)	$54,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Basic Technologies Inc. Top agencies EPA (Environmental Protection Agency)	$52,900	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	CMC Electronique Inc Through CMC Electronics Inc. Top agencies Navy (Department of the Navy)	$50,619	0.1%	Rank history: not on the FY2022 list, #58 in FY2023, #64 in FY2024 and not on the FY2025 list; up 2 since FY2020.
50	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency)	$50,121	0.1%	Rank history: #42 in FY2022, #55 in FY2023, #18 in FY2024 and #20 in FY2025; down 5 since FY2020.
51	Omnimar Enterprises Inc Through Prime Mover Controls Inc. Top agencies Navy (Department of the Navy)	$49,425	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Alabama Engine Company, LLC Top agencies DLA (Defense Logistics Agency)	$49,072	0.1%	Rank history: #51 in FY2022, #74 in FY2023, #43 in FY2024 and #85 in FY2025; up 12 since FY2020.
53	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$48,856	0.1%	Rank history: not on the FY2022 list, #56 in FY2023, #54 in FY2024 and #59 in FY2025; new, not ranked in FY2020.
54	Statz Corp Top agencies DLA (Defense Logistics Agency)	$47,705	0.1%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
55	MCI Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$41,883	0.1%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
56	Suco Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$41,780	0.1%	Rank history: not on the FY2022–FY2023 lists, #65 in FY2024 and not on the FY2025 list; down 34 since FY2020.
57	Am-Mac Incorporated Top agencies DLA (Defense Logistics Agency)	$41,606	0.1%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
58	Sikorsky Aircraft Corporation Top agencies DLA (Defense Logistics Agency)	$39,258	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
59	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$38,000	0.1%	Rank history: not on the FY2022 list, #36 in FY2023, #53 in FY2024 and #86 in FY2025; new, not ranked in FY2020.
60	Worldwide Equipment Enterprises Inc. Through Worldwide Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$36,568	0.1%	Rank history: not on the FY2022 list, #30 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$34,974	0.1%	Rank history: #80 in FY2022, #97 in FY2023, #79 in FY2024 and #89 in FY2025; down 17 since FY2020.
62	Cummins Inc. Top agencies DLA (Defense Logistics Agency)	$32,125	0.1%	Rank history: #48 in FY2022, #50 in FY2023, #31 in FY2024 and #47 in FY2025; unchanged since FY2020.
63	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$32,063	0.1%	Rank history: not on the FY2022 list, #91 in FY2023 and not on the FY2024–FY2025 lists; up 56 since FY2020.
64	ATI Industrial Automation, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$30,671	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Airbus Americas Inc. Through Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$30,519	0.1%	Rank history: not on the FY2022 list, #88 in FY2023, #62 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
66	O'Reilly Automotive Inc. Through O'reilly Automotive Stores, Inc. Top agencies DOJ (Department of Justice)	$28,955	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Nada Scientific Limited Top agencies DOJ (Department of Justice)	$28,175	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	R. S. Means Company LLC Through Setra Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$27,285	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Fluid Conditioning Products, Inc. Top agencies DLA (Defense Logistics Agency)	$26,390	0.1%	Rank history: not on the FY2022–FY2025 lists; up 62 since FY2020.
70	Innovative Solutions & Support Inc. Top agencies Navy (Department of the Navy)	$26,351	0.1%	Rank history: #58 in FY2022, #42 in FY2023, #52 in FY2024 and #25 in FY2025; down 23 since FY2020.
71	ADI American Distributors, LLC Through Newvac LLC Top agencies DLA (Defense Logistics Agency)	$25,000	0.1%	Rank history: not on the FY2022 list, #44 in FY2023, #35 in FY2024 and not on the FY2025 list; unchanged since FY2020.
72	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$24,567	0.1%	Rank history: #71 in FY2022 and not on the FY2023–FY2025 lists; up 70 since FY2020.
73	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$24,358	0.1%	Rank history: #27 in FY2022, not on the FY2023 list, #60 in FY2024 and #77 in FY2025; up 4 since FY2020.
74	Wbparts Inc. Top agencies DLA (Defense Logistics Agency)	$24,300	0.1%	Rank history: not on the FY2022–FY2024 lists and #18 in FY2025; new, not ranked in FY2020.
75	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$23,805	<0.1%	Rank history: not on the FY2022 list, #78 in FY2023, #78 in FY2024 and #15 in FY2025; new, not ranked in FY2020.
76	Daughtridge Sales Company, Inc. Top agencies DLA (Defense Logistics Agency)	$22,633	<0.1%	Rank history: #79 in FY2022, #80 in FY2023, #71 in FY2024 and not on the FY2025 list; down 16 since FY2020.
77	Southern Automotive Wholesalers, Inc. Top agencies DLA (Defense Logistics Agency)	$22,440	<0.1%	Rank history: not on the FY2022–FY2023 lists, #80 in FY2024 and #91 in FY2025; up 35 since FY2020.
78	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$21,729	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 56 since FY2020.
79	Kennebec Technologies Top agencies DLA (Defense Logistics Agency)	$20,708	<0.1%	Rank history: #99 in FY2022, #63 in FY2023, #98 in FY2024 and not on the FY2025 list; up 11 since FY2020.
80	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$20,600	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Infrared Systems Development Corporation Top agencies NASA (National Aeronautics and Space Administration)	$19,755	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Bell Boeing Joint Project Office Top agencies DLA (Defense Logistics Agency)	$19,631	<0.1%	Rank history: #84 in FY2022, #86 in FY2023, not on the FY2024 list and #92 in FY2025; up 35 since FY2020.
83	Allied Defense Industries Inc. 2 awardees, including Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$19,056	<0.1%	Rank history: #16 in FY2022, not on the FY2023 list, #87 in FY2024 and not on the FY2025 list; up 43 since FY2020.
84	Volkswagen AG Through Everllence USA Inc. Top agencies DLA (Defense Logistics Agency)	$18,886	<0.1%	Rank history: not on the FY2022 list, #90 in FY2023, #77 in FY2024 and not on the FY2025 list; up 17 since FY2020.
85	Edel Engineering Development Co. Top agencies DLA (Defense Logistics Agency)	$17,327	<0.1%	Rank history: #37 in FY2022, not on the FY2023–FY2024 lists and #87 in FY2025; up 38 since FY2020.
86	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$16,914	<0.1%	Rank history: #91 in FY2022, #79 in FY2023, #82 in FY2024 and not on the FY2025 list; up 8 since FY2020.
87	Johnson & Towers Inc. Top agencies DLA (Defense Logistics Agency)	$16,348	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$15,758	<0.1%	Rank history: #60 in FY2022 and not on the FY2023–FY2025 lists; down 67 since FY2020.
89	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$15,431	<0.1%	Rank history: #53 in FY2022, #38 in FY2023, #23 in FY2024 and #23 in FY2025; down 73 since FY2020.
90	Lee Air Company, Inc. Top agencies DLA (Defense Logistics Agency)	$15,100	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
91	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$14,940	<0.1%	Rank history: not on the FY2022 list, #67 in FY2023, not on the FY2024 list and #51 in FY2025; up 48 since FY2020.
92	Secure Components, LLC Top agencies DLA (Defense Logistics Agency)	$14,660	<0.1%	Rank history: not on the FY2022 list, #24 in FY2023, #46 in FY2024 and not on the FY2025 list; down 7 since FY2020.
93	American Defense Group LLC Top agencies DLA (Defense Logistics Agency)	$13,573	<0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 65 since FY2020.
94	Oshkosh Corp Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$13,415	<0.1%	Rank history: #69 in FY2022, #87 in FY2023, #56 in FY2024 and #60 in FY2025; down 1 since FY2020.
95	Technology International Inc. Top agencies DHS (Department of Homeland Security)	$13,390	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Sealand Power Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$13,309	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
97	Brandamar, Inc. Top agencies DLA (Defense Logistics Agency)	$13,159	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
98	OLB Associates LLC Top agencies DLA (Defense Logistics Agency)	$12,946	<0.1%	Rank history: #98 in FY2022, not on the FY2023–FY2024 lists and #30 in FY2025; down 14 since FY2020.
99	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$12,369	<0.1%	Rank history: #77 in FY2022, not on the FY2023 list, #69 in FY2024 and not on the FY2025 list; up 30 since FY2020.
100	Fyda Freightliner Columbus Inc. Top agencies DLA (Defense Logistics Agency)	$12,253	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 3 since FY2020.

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100 of 180 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 $47.6 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 6620 contractors in FY2021?

1. Kohler Co. ($15M), 2. Aero Precision Industries LLC ($7.83M), 3. Honeywell International Inc. ($4.5M), 4. General Nucleonics, Inc. ($2.69M), 5. General Electric Company ($2.62M), 6. Parker-Hannifin Corporation ($1.99M), 7. Guerrero Professional Services, Inc. ($1.19M), 8. Aarcorp ($951K), 9. Westbase Inc ($787K), 10. WKF (Friedman) Enterprises, Inc. ($695K).

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