Top 100 Contractors in NAICS 326122: Plastics Pipe and Pipe Fitting Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 326122: Plastics Pipe and Pipe Fitting Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 47% of FY2021 NAICS 326122 contract dollars

Contract obligations: $22,744,620 Net of deobligations, by contracts coded NAICS 326122
Contractors: 390 Parent companies with an obligation
Largest contractor: Tower Solutions LLC $1.74 million, 7.1% 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	Tower Solutions LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,743,157	7.1%	Rank history: #43 in FY2022, #5 in FY2023, #11 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	Transdigm Group Incorporated 3 awardees, including Tactair Fluid Controls Inc. and Transdigm Inc. Top agencies DLA (Defense Logistics Agency)	$1,544,150	6.3%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; up 82 since FY2020.
3	Hunter Defense Technolog Through HDT Expeditionary Systems Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,468,691	6.0%	Rank history: #3 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
4	Atlanta Fork Lifts, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DTRA (Defense Threat Reduction Agency)	$1,462,886	6.0%	Rank history: #10 in FY2022, #3 in FY2023, #30 in FY2024 and #21 in FY2025; unchanged since FY2020.
5	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency)	$1,207,467	4.9%	Rank history: #16 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
6	International Automated Systems Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) VA (Department of Veterans Affairs)	$1,151,673	4.7%	Rank history: #1 in FY2022, #19 in FY2023, #38 in FY2024 and #69 in FY2025; down 5 since FY2020.
7	Ferguson Enterprises Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$900,357	3.7%	Rank history: not on the FY2022–FY2025 lists; up 123 since FY2020.
8	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$752,025	3.1%	Rank history: not on the FY2022 list, #10 in FY2023, #9 in FY2024 and not on the FY2025 list; down 3 since FY2020.
9	Oshkosh Corp 2 awardees, including JLG Industries, Inc. and Oshkosh Defense LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) DOS (Department of State)	$644,952	2.6%	Rank history: #15 in FY2022, #17 in FY2023, #37 in FY2024 and #31 in FY2025; down 2 since FY2020.
10	MPC Industries, Inc. Top agencies GSA (General Services Administration)	$557,229	2.3%	Rank history: #28 in FY2022, #89 in FY2023, #12 in FY2024 and #6 in FY2025; unchanged since FY2020.
11	Spika Design & Manufacturing, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$528,027	2.2%	Rank history: #8 in FY2022, #44 in FY2023, #6 in FY2024 and #29 in FY2025; up 7 since FY2020.
12	B. David Co Inc. Top agencies DOS (Department of State)	$494,713	2.0%	Rank history: #36 in FY2022, #24 in FY2023, #19 in FY2024 and #73 in FY2025; up 2 since FY2020.
13	Containment Corporation Top agencies GSA (General Services Administration) Army (Department of the Army) DHS (Department of Homeland Security)	$474,218	1.9%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; down 7 since FY2020.
14	The Union Iron Works Top agencies Army (Department of the Army)	$408,896	1.7%	Rank history: #52 in FY2022, #31 in FY2023, #86 in FY2024 and #8 in FY2025; up 32 since FY2020.
15	Choctaw Nation of Oklahoma Through Choctaw Defense Manufacturing LLC Top agencies DLA (Defense Logistics Agency)	$386,406	1.6%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
16	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$349,669	1.4%	Rank history: #25 in FY2022, not on the FY2023–FY2024 lists and #15 in FY2025; up 46 since FY2020.
17	Statz Corp Top agencies DLA (Defense Logistics Agency)	$347,819	1.4%	Rank history: #19 in FY2022 and not on the FY2023–FY2025 lists; up 31 since FY2020.
18	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$311,548	1.3%	Rank history: #9 in FY2022, #2 in FY2023, #5 in FY2024 and #3 in FY2025; up 37 since FY2020.
19	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$271,497	1.1%	Rank history: not on the FY2022 list, #54 in FY2023, #50 in FY2024 and #16 in FY2025; down 6 since FY2020.
20	Spill 911, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$258,340	1.1%	Rank history: #26 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
21	Tapesouth Inc. Top agencies GSA (General Services Administration)	$247,956	1.0%	Rank history: #20 in FY2022, #34 in FY2023, #2 in FY2024 and #11 in FY2025; up 5 since FY2020.
22	Automated Cleaning Technologies, Inc. Top agencies USAF (Department of the Air Force)	$230,259	0.9%	Rank history: not on the FY2022 list, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	R.m. Waite Co., LLC Top agencies GSA (General Services Administration) USAF (Department of the Air Force)	$228,081	0.9%	Rank history: #21 in FY2022, #30 in FY2023, #73 in FY2024 and #79 in FY2025; down 7 since FY2020.
24	Eidos Corporation Top agencies USAF (Department of the Air Force)	$200,293	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Alfred Karcher GMBH & Co. KG 2 awardees, including Karcher North America, Inc. and Karcher Futuretech GMBH Top agencies GSA (General Services Administration) Navy (Department of the Navy) USAF (Department of the Air Force)	$190,304	0.8%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
26	Steelmaster Building, LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$186,915	0.8%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; up 75 since FY2020.
27	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$186,163	0.8%	Rank history: #13 in FY2022, #11 in FY2023, #31 in FY2024 and #18 in FY2025; down 6 since FY2020.
28	Mid-State Aerospace Inc. Top agencies DLA (Defense Logistics Agency)	$178,788	0.7%	Rank history: not on the FY2022–FY2023 lists, #76 in FY2024 and #83 in FY2025; up 47 since FY2020.
29	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$173,031	0.7%	Rank history: #11 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
30	Maxa Beam Searchlights, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$168,299	0.7%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
31	Hampton Rubber Company 3 awardees, including Western Sling, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) GSA (General Services Administration)	$158,915	0.6%	Rank history: not on the FY2022–FY2025 lists; up 167 since FY2020.
32	The Battery Specialist. Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$156,130	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Gray Manufacturing Company, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$153,093	0.6%	Rank history: not on the FY2022 list, #9 in FY2023, #53 in FY2024 and not on the FY2025 list; down 18 since FY2020.
34	Tate Andale, LLC Top agencies DLA (Defense Logistics Agency)	$142,546	0.6%	Rank history: #97 in FY2022, #55 in FY2023, #62 in FY2024 and #35 in FY2025; new, not ranked in FY2020.
35	The Boeing Company 3 awardees, including Boeing Distribution, Inc., Boeing Distribution Services X, Inc. and Boeing Distribution Services, Inc. Top agencies DLA (Defense Logistics Agency)	$140,364	0.6%	Rank history: not on the FY2022 list, #60 in FY2023, #32 in FY2024 and #26 in FY2025; up 8 since FY2020.
36	B & H International LLC Top agencies DOI (Department of the Interior)	$128,766	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	JLG Industries, Inc. Top agencies HHS (Department of Health and Human Services)	$124,063	0.5%	Rank history: not on the FY2022–FY2025 lists; up 108 since FY2020.
38	Stanley Black & Decker, Inc. Through E.a. Patten Co LLC Top agencies DLA (Defense Logistics Agency)	$121,072	0.5%	Rank history: not on the FY2022 list, #48 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
39	Grey Wolf Services LLC Top agencies DOI (Department of the Interior)	$121,066	0.5%	Rank history: #4 in FY2022, #92 in FY2023, not on the FY2024 list and #99 in FY2025; up 95 since FY2020.
40	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$117,601	0.5%	Rank history: #30 in FY2022, #65 in FY2023, #36 in FY2024 and #2 in FY2025; up 41 since FY2020.
41	BSE Performance, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$116,127	0.5%	Rank history: not on the FY2022–FY2025 lists; up 79 since FY2020.
42	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$111,855	0.5%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; up 74 since FY2020.
43	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$110,917	0.5%	Rank history: #12 in FY2022, #7 in FY2023, #56 in FY2024 and not on the FY2025 list; down 23 since FY2020.
44	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$102,995	0.4%	Rank history: #22 in FY2022, #13 in FY2023, #25 in FY2024 and #37 in FY2025; up 7 since FY2020.
45	Daco Corp Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$95,521	0.4%	Rank history: not on the FY2022–FY2025 lists; down 21 since FY2020.
46	Stealth Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$92,529	0.4%	Rank history: not on the FY2022–FY2024 lists and #54 in FY2025; new, not ranked in FY2020.
47	Way Point Commercial Broker L.l.c Top agencies USAF (Department of the Air Force)	$86,716	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Northwest Pipe Fittings, Inc. Top agencies USDA (Department of Agriculture)	$81,690	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	BAE Systems PLC Through BAE Systems Land & Armaments L.P. Top agencies DLA (Defense Logistics Agency)	$76,448	0.3%	Rank history: #68 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; up 117 since FY2020.
50	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$73,611	0.3%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; down 20 since FY2020.
51	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$73,540	0.3%	Rank history: not on the FY2022–FY2023 lists, #22 in FY2024 and #23 in FY2025; new, not ranked in FY2020.
52	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$71,528	0.3%	Rank history: not on the FY2022 list, #51 in FY2023, not on the FY2024 list and #65 in FY2025; up 7 since FY2020.
53	Hydro-Fitting Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$60,506	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	Isco Industries, Inc. Top agencies Army (Department of the Army)	$60,334	0.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; down 29 since FY2020.
55	One-Way Manufacturing Inc. Top agencies DLA (Defense Logistics Agency)	$58,811	0.2%	Rank history: #34 in FY2022, #67 in FY2023, #27 in FY2024 and #13 in FY2025; down 23 since FY2020.
56	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$58,335	0.2%	Rank history: #53 in FY2022, not on the FY2023–FY2024 lists and #58 in FY2025; new, not ranked in FY2020.
57	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$57,364	0.2%	Rank history: #23 in FY2022, #14 in FY2023, #13 in FY2024 and #28 in FY2025; new, not ranked in FY2020.
58	Graymills Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$57,241	0.2%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.
59	Buchanans Tube Bending Company Inc. Top agencies DLA (Defense Logistics Agency)	$54,919	0.2%	Rank history: #64 in FY2022, #46 in FY2023, #67 in FY2024 and #87 in FY2025; up 28 since FY2020.
60	T and T Products LLC Top agencies DLA (Defense Logistics Agency)	$54,887	0.2%	Rank history: #27 in FY2022, #39 in FY2023, #26 in FY2024 and #27 in FY2025; up 12 since FY2020.
61	Gen3 Defense & Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$54,345	0.2%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
62	Central Air Compressor Company Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$52,862	0.2%	Rank history: not on the FY2022 list, #75 in FY2023, #70 in FY2024 and #89 in FY2025; down 39 since FY2020.
63	DJ Products Inc. Top agencies USAF (Department of the Air Force)	$50,588	0.2%	Rank history: not on the FY2022 list, #90 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2020.
64	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$47,623	0.2%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
65	Pacific Sky Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$45,556	0.2%	Rank history: #62 in FY2022, #97 in FY2023 and not on the FY2024–FY2025 lists; up 76 since FY2020.
66	WSI Manufacturing Inc. Top agencies GSA (General Services Administration) USAF (Department of the Air Force) Commerce (Department of Commerce)	$45,370	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
67	King Nutronics Corporation Top agencies DLA (Defense Logistics Agency)	$44,269	0.2%	Rank history: #31 in FY2022, #40 in FY2023, #41 in FY2024 and #33 in FY2025; up 81 since FY2020.
68	Raymond R Gould Top agencies Navy (Department of the Navy)	$43,620	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	GFS Supply & Services Company, Inc. Top agencies USDA (Department of Agriculture) Navy (Department of the Navy)	$43,509	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Aero-Dyne Supply Co., Inc. Top agencies DLA (Defense Logistics Agency)	$43,376	0.2%	Rank history: #33 in FY2022, #35 in FY2023, #43 in FY2024 and not on the FY2025 list; down 21 since FY2020.
71	Translogic Corporation Top agencies VA (Department of Veterans Affairs)	$43,278	0.2%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
72	Eagle Equipment Corporation Top agencies DLA (Defense Logistics Agency)	$42,514	0.2%	Rank history: #66 in FY2022, not on the FY2023 list, #82 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	Rome Solutions LLC Top agencies Army (Department of the Army)	$41,361	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Troy Tube & Manufacturing Co Top agencies DLA (Defense Logistics Agency)	$41,278	0.2%	Rank history: #70 in FY2022, #73 in FY2023, not on the FY2024 list and #82 in FY2025; up 12 since FY2020.
75	Triad Technologies LLC Top agencies DLA (Defense Logistics Agency)	$39,801	0.2%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and not on the FY2025 list; up 20 since FY2020.
76	Jenoptik AG Through Vincorion LLC Top agencies DLA (Defense Logistics Agency)	$39,007	0.2%	Rank history: not on the FY2022–FY2025 lists; up 87 since FY2020.
77	Pauli Systems, Inc. Top agencies USAF (Department of the Air Force)	$38,871	0.2%	Rank history: not on the FY2022–FY2025 lists; down 48 since FY2020.
78	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$37,466	0.2%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2020.
79	Don Industrial Group LLC Top agencies DLA (Defense Logistics Agency)	$36,673	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Central Power Systems & Services, LLC Top agencies DLA (Defense Logistics Agency)	$34,921	0.1%	Rank history: not on the FY2022–FY2024 lists and #34 in FY2025; down 77 since FY2020.
81	Opatik Defense Manufacturing, LLC Top agencies DLA (Defense Logistics Agency)	$34,800	0.1%	Rank history: not on the FY2022–FY2023 lists, #7 in FY2024 and not on the FY2025 list; down 28 since FY2020.
82	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$34,188	0.1%	Rank history: not on the FY2022–FY2024 lists and #36 in FY2025; down 22 since FY2020.
83	Midway Industrial Supply Inc. Top agencies DLA (Defense Logistics Agency)	$33,617	0.1%	Rank history: #63 in FY2022, #63 in FY2023, #44 in FY2024 and #46 in FY2025; up 7 since FY2020.
84	SAFRAN Through Safran Electrical Components Canada Inc. Top agencies DLA (Defense Logistics Agency)	$33,115	0.1%	Rank history: #37 in FY2022, #4 in FY2023, #35 in FY2024 and not on the FY2025 list; up 60 since FY2020.
85	Metro Reliable Resources Corp. Top agencies DLA (Defense Logistics Agency)	$32,961	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Midwest Tube Fabricators Inc. Top agencies DLA (Defense Logistics Agency)	$32,846	0.1%	Rank history: not on the FY2022–FY2025 lists; up 110 since FY2020.
87	Robeck Fluid Power Co. Top agencies DLA (Defense Logistics Agency)	$30,526	0.1%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and not on the FY2025 list; up 28 since FY2020.
88	Allied Tools, Inc. Top agencies DLA (Defense Logistics Agency)	$30,363	0.1%	Rank history: not on the FY2022–FY2025 lists; up 218 since FY2020.
89	W. & O. Supply Inc. 4 awardees, including The Hiller Companies LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$30,211	0.1%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; up 103 since FY2020.
90	Chemical Piping Systems, Inc. Top agencies Commerce (Department of Commerce)	$29,872	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Aqua-Chem, Inc. Top agencies DLA (Defense Logistics Agency)	$29,849	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Aero Engineering & Manufacturing Company of California, LLC Top agencies DLA (Defense Logistics Agency)	$29,375	0.1%	Rank history: not on the FY2022–FY2025 lists; up 102 since FY2020.
93	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$28,888	0.1%	Rank history: #60 in FY2022, #23 in FY2023, #61 in FY2024 and not on the FY2025 list; up 29 since FY2020.
94	Global Incorporated Top agencies DLA (Defense Logistics Agency)	$27,563	0.1%	Rank history: not on the FY2022 list, #25 in FY2023, #78 in FY2024 and #60 in FY2025; new, not ranked in FY2020.
95	Custom Hydraulic & Machine, Inc. Top agencies DLA (Defense Logistics Agency)	$27,117	0.1%	Rank history: #95 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Mccay Tool and Engineering Company Top agencies DLA (Defense Logistics Agency)	$26,848	0.1%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
97	Pacific Lighting Mgt, Inc. Top agencies DOS (Department of State)	$26,241	0.1%	Rank history: #14 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; down 69 since FY2020.
98	PCX Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$26,200	0.1%	Rank history: #39 in FY2022, not on the FY2023 list, #23 in FY2024 and #44 in FY2025; up 154 since FY2020.
99	ITL LLC Top agencies DLA (Defense Logistics Agency)	$25,338	0.1%	Rank history: #46 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2020.
100	Staver Hydraulics Co., Inc. Top agencies DLA (Defense Logistics Agency)	$24,887	0.1%	Rank history: not on the FY2022 list, #71 in FY2023 and not on the FY2024–FY2025 lists; down 27 since FY2020.

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100 of 390 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 $24.5 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 326122 contractors in FY2021?

1. Tower Solutions LLC ($1.74M), 2. Transdigm Group Incorporated ($1.54M), 3. Hunter Defense Technolog ($1.47M), 4. Atlanta Fork Lifts, Inc. ($1.46M), 5. Federal Resources Supply Company ($1.21M), 6. International Automated Systems Inc. ($1.15M), 7. Ferguson Enterprises Inc. ($900K), 8. R P M Supply Corporation ($752K), 9. Oshkosh Corp ($645K), 10. MPC Industries, Inc. ($557K).

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