Top 100 Contractors in NAICS 333923: Overhead Traveling Crane, Hoist, and Monorail System Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 333923: Overhead Traveling Crane, Hoist, and Monorail System Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 71% of FY2021 NAICS 333923 contract dollars

Contract obligations: $172,878,670 Net of deobligations, by contracts coded NAICS 333923
Contractors: 352 Parent companies with an obligation
Largest contractor: Konecranes Inc $49.2 million, 27.3% 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	Konecranes Inc 2 awardees, including Konecranes Nuclear Equipment & Services, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) Treasury (Department of the Treasury)	$49,172,516	27.3%	Rank history: #2 in FY2022, #1 in FY2023, #2 in FY2024 and not on the FY2025 list; up 15 since FY2020.
2	Groupe Reel Through Reel COH Inc. Top agencies Army (Department of the Army) DOE (Department of Energy)	$17,602,450	9.8%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
3	BCI Construction Usa, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$10,863,512	6.0%	Rank history: #3 in FY2022, #5 in FY2023, #22 in FY2024 and #34 in FY2025; up 4 since FY2020.
4	Crane Technologies Group, Inc. Top agencies Navy (Department of the Navy)	$8,853,258	4.9%	Rank history: #13 in FY2022, #11 in FY2023, #16 in FY2024 and #8 in FY2025; up 5 since FY2020.
5	Sievert Electric Service and Sales Company Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Army (Department of the Army)	$8,808,861	4.9%	Rank history: #10 in FY2022, #6 in FY2023, #28 in FY2024 and #12 in FY2025; up 6 since FY2020.
6	Knight Const. & Supply, Inc. Top agencies Army (Department of the Army)	$8,323,550	4.6%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 371 since FY2020.
7	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$8,056,616	4.5%	Rank history: #7 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
8	Appleton Marine Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$6,498,528	3.6%	Rank history: #9 in FY2022, #10 in FY2023, #8 in FY2024 and #5 in FY2025; down 3 since FY2020.
9	The Entwistle Trust Through The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,302,464	2.9%	Rank history: #14 in FY2022, not on the FY2023 list, #12 in FY2024 and not on the FY2025 list; up 5 since FY2020.
10	Welin Lambie Limited Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) DOT (Department of Transportation)	$5,142,414	2.9%	Rank history: #12 in FY2022, #9 in FY2023, #11 in FY2024 and #4 in FY2025; down 2 since FY2020.
11	Allied Systems Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,666,828	2.6%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #13 in FY2025; down 7 since FY2020.
12	ACE Industries, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,033,391	1.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Weckworth Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$2,532,845	1.4%	Rank history: #25 in FY2022, #31 in FY2023, #34 in FY2024 and #17 in FY2025; up 333 since FY2020.
14	Northbank Civil and Marine, LLC Top agencies Army (Department of the Army)	$2,250,000	1.2%	Rank history: #19 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
15	Herc Leasing Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) VA (Department of Veterans Affairs)	$2,205,983	1.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
16	Crane TECH Solutions LLC Top agencies DHS (Department of Homeland Security)	$2,094,580	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
17	Lidgerwood Manufacturing Company Through Superior-Lidgerwood-Mundy Corp Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$1,967,593	1.1%	Rank history: #64 in FY2022, not on the FY2023 list, #37 in FY2024 and not on the FY2025 list; up 13 since FY2020.
18	Caley Ocean Systems Limited Top agencies Navy (Department of the Navy)	$1,847,045	1.0%	Rank history: #46 in FY2022, not on the FY2023 list, #29 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
19	Lake Shore Systems, Inc. 3 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,473,312	0.8%	Rank history: #15 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
20	Spydercrane.com, LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) Army (Department of the Army)	$1,367,743	0.8%	Rank history: #21 in FY2022, #45 in FY2023, #38 in FY2024 and #24 in FY2025; down 2 since FY2020.
21	Craneworks, Inc. Top agencies Navy (Department of the Navy)	$931,345	0.5%	Rank history: not on the FY2022–FY2024 lists and #47 in FY2025; up 225 since FY2020.
22	A.s.e., Inc. Top agencies USAF (Department of the Air Force)	$834,300	0.5%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
23	North Pacific Crane Co LLC Top agencies Commerce (Department of Commerce)	$777,300	0.4%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
24	Melton Sales & Service Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$719,227	0.4%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; down 7 since FY2020.
25	Sparrows Offshore LLC 2 awardees Top agencies DHS (Department of Homeland Security)	$669,552	0.4%	Rank history: #30 in FY2022, #56 in FY2023, #19 in FY2024 and #37 in FY2025; up 2 since FY2020.
26	Techcrane International LLC Top agencies Army (Department of the Army) Commerce (Department of Commerce)	$596,280	0.3%	Rank history: #41 in FY2022, #55 in FY2023, not on the FY2024 list and #83 in FY2025; up 23 since FY2020.
27	Sumitomo Heavy Industries, Ltd. 2 awardees, including Sumitomo Heavy Industries Material Handling Systems Co., Ltd. and Link-Belt Cranes, L.p., LLLP Top agencies Navy (Department of the Navy)	$586,295	0.3%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
28	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$519,297	0.3%	Rank history: #57 in FY2022, #68 in FY2023, not on the FY2024 list and #38 in FY2025; up 48 since FY2020.
29	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$456,173	0.3%	Rank history: #56 in FY2022, #78 in FY2023, #52 in FY2024 and not on the FY2025 list; up 25 since FY2020.
30	Fulton Supply Company Top agencies DLA (Defense Logistics Agency)	$452,530	0.3%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
31	Westminster Hydraulics, Inc. Top agencies DOI (Department of the Interior)	$415,991	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	Piedmont Hoist & Crane Inc. Top agencies Navy (Department of the Navy)	$408,645	0.2%	Rank history: #6 in FY2022, #26 in FY2023, not on the FY2024 list and #62 in FY2025; down 8 since FY2020.
33	All Around Access, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$403,714	0.2%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; down 14 since FY2020.
34	Marine Travelift Inc. Top agencies DOI (Department of the Interior) USSOCOM (United States Special Operations Command)	$388,145	0.2%	Rank history: #18 in FY2022, #12 in FY2023, #6 in FY2024 and #7 in FY2025; down 21 since FY2020.
35	Reagent World, Inc. Top agencies USAF (Department of the Air Force)	$386,178	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Advanced Industrial Solutions, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$381,290	0.2%	Rank history: not on the FY2022 list, #84 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
37	MCT Industries, Inc. Top agencies USAF (Department of the Air Force)	$370,557	0.2%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
38	Cargotec OYJ 3 awardees, including Independent Rough Terrain Center LLC, Macgregor USA Inc. and Hiab USA Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOI (Department of the Interior)	$362,692	0.2%	Rank history: not on the FY2022–FY2025 lists; up 122 since FY2020.
39	Altman Browning and Company Top agencies Army (Department of the Army)	$356,807	0.2%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
40	Ram Winch and Hoist Management, LLC Top agencies DHS (Department of Homeland Security)	$346,625	0.2%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
41	Keystone Maintenance Services Corp Top agencies Army (Department of the Army) DOI (Department of the Interior) Commerce (Department of Commerce)	$311,638	0.2%	Rank history: #81 in FY2022, not on the FY2023 list, #72 in FY2024 and #44 in FY2025; up 140 since FY2020.
42	Rolls-Royce Military Aero Engines Ltd Through Syncrolift Inc. Top agencies Army (Department of the Army)	$297,409	0.2%	Rank history: #60 in FY2022, #65 in FY2023, #61 in FY2024 and not on the FY2025 list; up 208 since FY2020.
43	Bridport Erie Aviation, Inc. Top agencies DLA (Defense Logistics Agency)	$290,145	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	MDF Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$284,234	0.2%	Rank history: #76 in FY2022, not on the FY2023 list, #74 in FY2024 and not on the FY2025 list; up 100 since FY2020.
45	Dunamiz DWC LLC Top agencies USAF (Department of the Air Force)	$282,581	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Federal Contracts LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force) DOT (Department of Transportation)	$281,919	0.2%	Rank history: #62 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
47	Mile Marker International Inc Through Mile Marker Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$278,024	0.2%	Rank history: #67 in FY2022, #30 in FY2023, #48 in FY2024 and not on the FY2025 list; down 16 since FY2020.
48	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$270,553	0.2%	Rank history: #28 in FY2022, #42 in FY2023, #25 in FY2024 and #21 in FY2025; down 19 since FY2020.
49	Triman Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$261,478	0.1%	Rank history: #61 in FY2022, #73 in FY2023, #24 in FY2024 and #25 in FY2025; up 179 since FY2020.
50	Warren Machine Technology Inc. Top agencies DLA (Defense Logistics Agency)	$260,340	0.1%	Rank history: not on the FY2022–FY2023 lists, #53 in FY2024 and #40 in FY2025; new, not ranked in FY2020.
51	Gravitec Systems Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$252,980	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	West Coast Wire Rope and Rigging, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$249,701	0.1%	Rank history: #47 in FY2022, #48 in FY2023, not on the FY2024 list and #88 in FY2025; up 48 since FY2020.
53	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$249,375	0.1%	Rank history: not on the FY2022–FY2023 lists, #47 in FY2024 and #51 in FY2025; new, not ranked in FY2020.
54	Ballard Industrial, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$248,778	0.1%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
55	Avioss LLC Top agencies Navy (Department of the Navy)	$247,730	0.1%	Rank history: not on the FY2022 list, #50 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
56	Safe Structure Designs LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$235,971	0.1%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
57	Aocs, Inc. Top agencies USAF (Department of the Air Force)	$233,267	0.1%	Rank history: #20 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 59 since FY2020.
58	Orlotronics Corp Top agencies Navy (Department of the Navy)	$231,433	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Hanes Supply, Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation) Navy (Department of the Navy)	$230,061	0.1%	Rank history: #31 in FY2022, #23 in FY2023, #49 in FY2024 and #41 in FY2025; up 144 since FY2020.
60	Permadur Industries Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$229,756	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; down 22 since FY2020.
61	Statz Corp Top agencies DLA (Defense Logistics Agency)	$229,421	0.1%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 50 since FY2020.
62	Material Handling Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$228,830	0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
63	Nga3 Services LLC Top agencies VA (Department of Veterans Affairs)	$224,943	0.1%	Rank history: #29 in FY2022, #35 in FY2023, #30 in FY2024 and #29 in FY2025; down 22 since FY2020.
64	All-Safe Inc. Top agencies DLA (Defense Logistics Agency)	$221,380	0.1%	Rank history: not on the FY2022–FY2024 lists and #49 in FY2025; new, not ranked in FY2020.
65	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$213,360	0.1%	Rank history: not on the FY2022–FY2023 lists, #100 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
66	Adolf Lupp GMBH + Co. KG Through Lupp Facility Management GMBH Top agencies Army (Department of the Army)	$205,747	0.1%	Rank history: #70 in FY2022, #83 in FY2023, #82 in FY2024 and #80 in FY2025; up 3 since FY2020.
67	Mock, Inc. Top agencies DLA (Defense Logistics Agency)	$196,536	0.1%	Rank history: #95 in FY2022, #64 in FY2023, #50 in FY2024 and not on the FY2025 list; up 25 since FY2020.
68	VSE Corporation 2 awardees, including Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency)	$189,553	0.1%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
69	Navpar Inc. Top agencies DLA (Defense Logistics Agency)	$183,395	0.1%	Rank history: not on the FY2022 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 99 since FY2020.
70	Baltimore Hydraulics, Inc. Top agencies DHS (Department of Homeland Security)	$178,579	0.1%	Rank history: not on the FY2022 list, #88 in FY2023, #86 in FY2024 and not on the FY2025 list; up 61 since FY2020.
71	Jered LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$174,149	0.1%	Rank history: #100 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
72	Thriller Fabrication & Manufacturing LLC Top agencies USAF (Department of the Air Force)	$174,027	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Thern Inc. Top agencies Navy (Department of the Navy)	$167,620	0.1%	Rank history: not on the FY2022 list, #91 in FY2023 and not on the FY2024–FY2025 lists; up 40 since FY2020.
74	Davis Aircraft Products Co., Inc. Top agencies Navy (Department of the Navy)	$167,491	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Textron Inc. Through Bell Textron Inc. Top agencies Navy (Department of the Navy)	$164,351	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Tri State Tool & Hoist Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$163,977	0.1%	Rank history: not on the FY2022–FY2025 lists; up 60 since FY2020.
77	Sievert Electric / Pacific Crane Maintenance JV Top agencies Army (Department of the Army)	$160,334	0.1%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
78	Maritime Applied Physics Corporation Top agencies DHS (Department of Homeland Security)	$159,986	0.1%	Rank history: not on the FY2022–FY2024 lists and #33 in FY2025; down 50 since FY2020.
79	Assa Abloy AB Through Assa Abloy Entrance Systems US Inc. Top agencies USAF (Department of the Air Force)	$157,500	0.1%	Rank history: not on the FY2022–FY2025 lists; up 103 since FY2020.
80	Wesley B Jones Electrical Inc. Top agencies Army (Department of the Army)	$149,455	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	R.e. Atckison Co., Inc. Top agencies Navy (Department of the Navy)	$143,988	0.1%	Rank history: not on the FY2022–FY2024 lists and #54 in FY2025; new, not ranked in FY2020.
82	Kato Works Co. Ltd. Top agencies Navy (Department of the Navy)	$140,087	0.1%	Rank history: not on the FY2022–FY2025 lists; down 62 since FY2020.
83	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$139,289	0.1%	Rank history: #36 in FY2022, #49 in FY2023, #31 in FY2024 and #61 in FY2025; down 48 since FY2020.
84	New England TEK LLC Top agencies Navy (Department of the Navy)	$135,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$134,690	0.1%	Rank history: not on the FY2022–FY2025 lists; down 52 since FY2020.
86	Age Logistics Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$134,150	0.1%	Rank history: not on the FY2022 list, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
87	American Crane & Equipment Corp Top agencies Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration)	$132,522	0.1%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
88	Vecoaçores - Veículos Comerciais Dos Açores, LDA Top agencies USAF (Department of the Air Force)	$130,319	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Atlantic Hoist & Crane Inc. Top agencies Army (Department of the Army)	$128,235	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Bradley-Thompson Tool Company Top agencies DLA (Defense Logistics Agency)	$127,883	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Rocky Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$127,032	0.1%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
92	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$125,847	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$124,013	0.1%	Rank history: not on the FY2022–FY2024 lists and #56 in FY2025; up 50 since FY2020.
94	G.t. Machining & Fabricating Ltd. Top agencies Army (Department of the Army)	$119,421	0.1%	Rank history: #82 in FY2022, #39 in FY2023, #36 in FY2024 and #27 in FY2025; down 9 since FY2020.
95	Bravo, Inc. Top agencies VA (Department of Veterans Affairs)	$117,125	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Unimex Corporation Through Paragon Defense Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$115,500	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$111,501	0.1%	Rank history: #83 in FY2022, #58 in FY2023, #26 in FY2024 and #26 in FY2025; up 57 since FY2020.
98	V.e.p. Manufacturing Inc. Top agencies DLA (Defense Logistics Agency)	$107,250	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$106,549	0.1%	Rank history: #32 in FY2022, #80 in FY2023, not on the FY2024 list and #48 in FY2025; up 64 since FY2020.
100	Mazzella Holding Company, Inc. Through Mazzella Lifting Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$106,180	0.1%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; down 38 since FY2020.

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100 of 352 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 $180 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 NAICS 333923 contractors in FY2021?

1. Konecranes Inc ($49.2M), 2. Groupe Reel ($17.6M), 3. BCI Construction Usa, Inc. ($10.9M), 4. Crane Technologies Group, Inc. ($8.85M), 5. Sievert Electric Service and Sales Company ($8.81M), 6. Knight Const. & Supply, Inc. ($8.32M), 7. Government of Canada ($8.06M), 8. Appleton Marine Inc. ($6.5M), 9. The Entwistle Trust ($5.3M), 10. Welin Lambie Limited ($5.14M).

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