Top 100 Contractors in PSC 4520: Space and Water Heating Equipment, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$3,306,047	12.1%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; up 1 since FY2020.
2	Argo Turboserve Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,214,937	8.1%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; up 4 since FY2020.
3	Government of Canada Through Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency)	$1,579,674	5.8%	Rank history: #33 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
4	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,341,629	4.9%	Rank history: #7 in FY2022, #5 in FY2023, #7 in FY2024 and #11 in FY2025; up 3 since FY2020.
5	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$1,275,499	4.7%	Rank history: #4 in FY2022, #16 in FY2023, #10 in FY2024 and #7 in FY2025; unchanged since FY2020.
6	NGH Retail LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$975,402	3.6%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; up 83 since FY2020.
7	Atap Inc. Top agencies USAF (Department of the Air Force)	$823,620	3.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
8	Gardner Co Inc. Top agencies DMA (Defense Media Activity)	$755,686	2.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
9	Electric Heater Company the 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$590,607	2.2%	Rank history: #6 in FY2022, #4 in FY2023, #30 in FY2024 and #5 in FY2025; unchanged since FY2020.
10	Boneal, Incorporated 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$560,617	2.1%	Rank history: not on the FY2022 list, #7 in FY2023, #5 in FY2024 and #4 in FY2025; down 9 since FY2020.
11	Johnson Controls Security Solutions LLC 2 awardees, including Johnson Controls, Inc. and Johnson Controls Navy Systems, LLC Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency)	$546,798	2.0%	Rank history: #16 in FY2022, #28 in FY2023, #47 in FY2024 and not on the FY2025 list; up 19 since FY2020.
12	Nilofer Battiwala Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$541,650	2.0%	Rank history: #87 in FY2022, not on the FY2023 list, #79 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
13	Lockheed Martin Corporation 3 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$467,470	1.7%	Rank history: #9 in FY2022, #6 in FY2023, #2 in FY2024 and #1 in FY2025; up 3 since FY2020.
14	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOJ (Department of Justice)	$403,651	1.5%	Rank history: #44 in FY2022, #75 in FY2023, #98 in FY2024 and #36 in FY2025; up 9 since FY2020.
15	International Thermal Research Ltd Top agencies DLA (Defense Logistics Agency)	$383,560	1.4%	Rank history: #5 in FY2022, #18 in FY2023, #12 in FY2024 and #32 in FY2025; up 67 since FY2020.
16	OEM Laundry Parts, Llc. Top agencies DLA (Defense Logistics Agency)	$323,020	1.2%	Rank history: #27 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
17	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$304,286	1.1%	Rank history: #54 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
18	Vertex LLC Top agencies DLA (Defense Logistics Agency)	$299,724	1.1%	Rank history: not on the FY2022–FY2025 lists; up 125 since FY2020.
19	Industrial Engineering and Equipment Company Incorporated 2 awardees, including Indeeco LLC and Aspeq Heating Group LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Smithsonian (Smithsonian Institution)	$299,326	1.1%	Rank history: #43 in FY2022, #38 in FY2023, #11 in FY2024 and not on the FY2025 list; up 2 since FY2020.
20	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$289,296	1.1%	Rank history: #21 in FY2022, #12 in FY2023, #85 in FY2024 and #48 in FY2025; down 1 since FY2020.
21	RTX Corporation 2 awardees, including Raytheon Company and Hamilton Sundstrand Corporation Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$253,209	0.9%	Rank history: not on the FY2022 list, #71 in FY2023, #42 in FY2024 and not on the FY2025 list; up 3 since FY2020.
22	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$240,257	0.9%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2020.
23	Kipper Tool Company Top agencies DLA (Defense Logistics Agency)	$215,516	0.8%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	Lionheart Holdings LLC Through Selas Heat Technology Company LLC Top agencies DHS (Department of Homeland Security)	$214,307	0.8%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
25	Commercial Parts & Service of Columbus, Ohio, Inc. Top agencies DLA (Defense Logistics Agency)	$208,632	0.8%	Rank history: #24 in FY2022, #29 in FY2023, #84 in FY2024 and not on the FY2025 list; up 18 since FY2020.
26	Chromalox Inc. 3 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$208,544	0.8%	Rank history: not on the FY2022–FY2025 lists; up 78 since FY2020.
27	The Jahnda Group, LLC Top agencies DOJ (Department of Justice)	$200,787	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	Advanced Radiant Systems Inc. Through Hale Industries, Inc. Top agencies USAF (Department of the Air Force)	$186,000	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
29	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$178,818	0.7%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
30	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$178,162	0.7%	Rank history: #47 in FY2022, #83 in FY2023, #38 in FY2024 and #9 in FY2025; down 18 since FY2020.
31	Surefin Mechanical Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$171,865	0.6%	Rank history: #31 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
32	Waterbury Plumbing & Heating Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$166,647	0.6%	Rank history: not on the FY2022 list, #82 in FY2023, #65 in FY2024 and #51 in FY2025; up 6 since FY2020.
33	Leonardo S.p.A. Through Engineered Coil Company Top agencies DLA (Defense Logistics Agency)	$153,120	0.6%	Rank history: not on the FY2022–FY2023 lists, #15 in FY2024 and #18 in FY2025; down 23 since FY2020.
34	Valad Electric Heating Corp. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$149,865	0.5%	Rank history: #29 in FY2022, #65 in FY2023, #21 in FY2024 and #34 in FY2025; down 5 since FY2020.
35	W.w. Grainger, Inc. Top agencies GSA (General Services Administration) Commerce (Department of Commerce) Navy (Department of the Navy)	$144,639	0.5%	Rank history: #22 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
36	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$144,545	0.5%	Rank history: not on the FY2022–FY2025 lists; up 138 since FY2020.
37	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$139,859	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	Reading Foundry & Supply Co Top agencies DOJ (Department of Justice)	$139,732	0.5%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
39	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$132,769	0.5%	Rank history: #28 in FY2022, #51 in FY2023, #55 in FY2024 and #31 in FY2025; up 11 since FY2020.
40	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$127,185	0.5%	Rank history: not on the FY2022 list, #64 in FY2023, not on the FY2024 list and #79 in FY2025; up 105 since FY2020.
41	Megabite Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$124,725	0.5%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
42	RNK International, Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency) DOS (Department of State)	$118,656	0.4%	Rank history: #79 in FY2022, #19 in FY2023, #33 in FY2024 and #19 in FY2025; unchanged since FY2020.
43	Four Winds Mechanical HTC / AC Inc. Top agencies HHS (Department of Health and Human Services)	$118,382	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Homewood Sales Corporation Top agencies Navy (Department of the Navy)	$115,500	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Unimex Corporation Through Paragon Defense Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$115,200	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Ambient Total Term SRL Top agencies DOS (Department of State)	$114,123	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Govage, Inc. Top agencies DOJ (Department of Justice)	$107,896	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Indeeco LLC Top agencies DLA (Defense Logistics Agency)	$97,198	0.4%	Rank history: not on the FY2022–FY2024 lists and #14 in FY2025; new, not ranked in FY2020.
49	Bhayana Brothers LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$89,025	0.3%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
50	Madison Electric Co Top agencies DLA (Defense Logistics Agency)	$88,751	0.3%	Rank history: #98 in FY2022, not on the FY2023 list, #63 in FY2024 and #91 in FY2025; down 6 since FY2020.
51	TP Howards Plumbing Co Inc. Top agencies VA (Department of Veterans Affairs)	$86,050	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
52	Long Building Technologies, Inc. Top agencies DOJ (Department of Justice)	$83,865	0.3%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
53	Onodi Tool & Engineering Co Top agencies DLA (Defense Logistics Agency)	$82,607	0.3%	Rank history: not on the FY2022 list, #66 in FY2023, #70 in FY2024 and #67 in FY2025; new, not ranked in FY2020.
54	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$82,179	0.3%	Rank history: #15 in FY2022, #10 in FY2023, #17 in FY2024 and #22 in FY2025; up 118 since FY2020.
55	Advanced Mechanical & Hvac, LLC Top agencies DOT (Department of Transportation)	$79,012	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	BCI Services Inc. Top agencies Army (Department of the Army)	$75,510	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$75,331	0.3%	Rank history: not on the FY2022 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2020.
58	Southern Illinois Piping Contractors Inc. Top agencies VA (Department of Veterans Affairs)	$73,300	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$71,165	0.3%	Rank history: #72 in FY2022, #26 in FY2023, #18 in FY2024 and #50 in FY2025; down 6 since FY2020.
60	Seahorse Defense Supply, LLC Top agencies DHS (Department of Homeland Security)	$68,700	0.3%	Rank history: not on the FY2022–FY2025 lists; up 68 since FY2020.
61	Active Gear Company of Canada Limited Top agencies DLA (Defense Logistics Agency)	$67,864	0.2%	Rank history: #63 in FY2022, #39 in FY2023, #87 in FY2024 and #59 in FY2025; down 9 since FY2020.
62	Vemco Inc. Top agencies USAF (Department of the Air Force)	$66,750	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Ken Clary & Company, L.L.C. Top agencies DOJ (Department of Justice)	$64,861	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Gill Group Inc. Top agencies DLA (Defense Logistics Agency)	$62,727	0.2%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
65	Design Space Modular Buildings Pnw, LP Top agencies USAF (Department of the Air Force)	$62,187	0.2%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
66	Southwest Boiler Supply, LLC Top agencies HHS (Department of Health and Human Services)	$62,000	0.2%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
67	Mshc, Inc. Top agencies DOJ (Department of Justice)	$61,414	0.2%	Rank history: not on the FY2022 list, #48 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
68	Aantilia LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$61,198	0.2%	Rank history: #20 in FY2022, not on the FY2023 list, #56 in FY2024 and not on the FY2025 list; up 65 since FY2020.
69	Douglas Food Stores Inc. Top agencies DLA (Defense Logistics Agency)	$60,784	0.2%	Rank history: #57 in FY2022, not on the FY2023 list, #51 in FY2024 and #78 in FY2025; down 1 since FY2020.
70	Lewis-Smith Corporation Top agencies DOJ (Department of Justice)	$59,232	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Statz Corp Top agencies DLA (Defense Logistics Agency)	$58,903	0.2%	Rank history: #48 in FY2022, #92 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
72	Tomahawk Sourcing LLC Top agencies DLA (Defense Logistics Agency)	$57,979	0.2%	Rank history: #13 in FY2022, not on the FY2023 list, #78 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
73	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$57,941	0.2%	Rank history: not on the FY2022–FY2023 lists, #37 in FY2024 and #93 in FY2025; down 38 since FY2020.
74	The Globe Equipment Company Inc Top agencies DLA (Defense Logistics Agency)	$57,482	0.2%	Rank history: not on the FY2022–FY2024 lists and #86 in FY2025; down 9 since FY2020.
75	Bit Direct Inc. Top agencies DOJ (Department of Justice)	$55,235	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$54,832	0.2%	Rank history: #17 in FY2022, not on the FY2023 list, #57 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
77	New York Thermal Systems LLC Top agencies DOT (Department of Transportation)	$53,904	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Red Orange North America Inc. Top agencies DOS (Department of State) DHS (Department of Homeland Security)	$53,829	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Wizard Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$50,232	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Koval Building and Plumbing Co Top agencies DOJ (Department of Justice)	$49,997	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	A C Controls Co Inc. Top agencies DLA (Defense Logistics Agency)	$49,780	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Westex Group, Inc. Top agencies DOJ (Department of Justice)	$49,397	0.2%	Rank history: not on the FY2022 list, #42 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
83	South Town Refrigeration LLC Top agencies VA (Department of Veterans Affairs)	$47,800	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Mainland Supply, Inc. Top agencies DOS (Department of State)	$46,781	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Endurance, LLC Top agencies DLA (Defense Logistics Agency)	$46,505	0.2%	Rank history: #84 in FY2022 and not on the FY2023–FY2025 lists; down 10 since FY2020.
86	Honeywell International Inc. Top agencies DLA (Defense Logistics Agency)	$44,896	0.2%	Rank history: not on the FY2022–FY2025 lists; up 82 since FY2020.
87	Boyum Mechanical, LLC Top agencies DOJ (Department of Justice)	$44,842	0.2%	Rank history: not on the FY2022–FY2023 lists, #20 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
88	Diamondone Energy Services LLC Top agencies VA (Department of Veterans Affairs)	$44,233	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Cuna Supply LLC Top agencies VA (Department of Veterans Affairs)	$43,857	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$43,391	0.2%	Rank history: #56 in FY2022, #37 in FY2023, #13 in FY2024 and #23 in FY2025; down 3 since FY2020.
91	Cox & Company, Inc. Top agencies DLA (Defense Logistics Agency)	$41,035	0.2%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
92	Aviation Procurement Systems, LLC Top agencies DLA (Defense Logistics Agency)	$40,074	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Ashtead US Holdings Inc Through Sunbelt Rentals, Inc. Top agencies VA (Department of Veterans Affairs)	$39,832	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	Coburn Supply Company, Inc. Top agencies DOJ (Department of Justice)	$39,236	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Powerhouse Equipment & Engineering Co. Inc. Top agencies Army (Department of the Army)	$35,640	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
96	Cepeda Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$34,891	0.1%	Rank history: not on the FY2022 list, #90 in FY2023, #61 in FY2024 and #40 in FY2025; down 12 since FY2020.
97	Robeck Fluid Power Co. Top agencies DLA (Defense Logistics Agency)	$34,363	0.1%	Rank history: not on the FY2022–FY2025 lists; up 110 since FY2020.
98	Am-Mac Incorporated Top agencies DLA (Defense Logistics Agency)	$34,052	0.1%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
99	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$33,142	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$32,752	0.1%	Rank history: not on the FY2022 list, #50 in FY2023, #67 in FY2024 and #30 in FY2025; up 44 since FY2020.

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 $27.3 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