Top 100 Contractors in PSC 4520: Space and Water Heating Equipment, FY2025

Name: Top 100 Contractors in PSC 4520: Space and Water Heating Equipment, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 51% of FY2025 PSC 4520 contract dollars

Contract obligations: $34,437,448 Net of deobligations, by contracts coded PSC 4520
Contractors: 239 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $4.12 million, 11.3% 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	Lockheed Martin Corporation Through Sikorsky Aircraft Corporation Top agencies DLA (Defense Logistics Agency)	$4,122,815	11.3%	Rank history: #13 in FY2021, #9 in FY2022, #6 in FY2023 and #2 in FY2024; up 1 since FY2024.
2	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$3,991,127	10.9%	Rank history: #1 in FY2021, #1 in FY2022, #2 in FY2023 and #1 in FY2024; down 1 since FY2024.
3	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,801,055	7.7%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Boneal, Incorporated Top agencies USAF (Department of the Air Force)	$2,730,000	7.5%	Rank history: #10 in FY2021, not on the FY2022 list, #7 in FY2023 and #5 in FY2024; up 1 since FY2024.
5	The Electric Heater Co Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,556,799	4.3%	Rank history: #9 in FY2021, #6 in FY2022, #4 in FY2023 and #30 in FY2024; up 25 since FY2024.
6	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$889,307	2.4%	Rank history: not on the FY2021–FY2022 lists, #52 in FY2023 and #16 in FY2024; up 10 since FY2024.
7	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$854,323	2.3%	Rank history: #5 in FY2021, #4 in FY2022, #16 in FY2023 and #10 in FY2024; up 3 since FY2024.
8	Integrated Procurement Technologies Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$633,988	1.7%	Rank history: not on the FY2021 list, #61 in FY2022, #24 in FY2023 and #6 in FY2024; down 2 since FY2024.
9	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$616,537	1.7%	Rank history: #30 in FY2021, #47 in FY2022, #83 in FY2023 and #38 in FY2024; up 29 since FY2024.
10	Thermo-Cycler Industries Inc. Top agencies Army (Department of the Army)	$582,935	1.6%	Rank history: not on the FY2021–FY2024 lists; new.
11	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$573,246	1.6%	Rank history: #4 in FY2021, #7 in FY2022, #5 in FY2023 and #7 in FY2024; down 4 since FY2024.
12	Auburn Mechanical, Inc. Top agencies Navy (Department of the Navy)	$498,900	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
13	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$495,948	1.4%	Rank history: not on the FY2021 list, #77 in FY2022, #41 in FY2023 and not on the FY2024 list; returned.
14	Indeeco LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$423,566	1.2%	Rank history: #48 in FY2021 and not on the FY2022–FY2024 lists; up 195 since FY2024.
15	Advanced Products Services Inc. Top agencies DLA (Defense Logistics Agency)	$396,619	1.1%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023 and #8 in FY2024; down 7 since FY2024.
16	Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency)	$391,950	1.1%	Rank history: not on the FY2021–FY2023 lists and #41 in FY2024; up 25 since FY2024.
17	Teya Diversified Services LLC Top agencies USAF (Department of the Air Force)	$385,843	1.1%	Rank history: not on the FY2021–FY2024 lists; new.
18	Leonardo S.p.A. Through Engineered Coil Company Top agencies DLA (Defense Logistics Agency)	$375,961	1.0%	Rank history: #33 in FY2021, not on the FY2022–FY2023 lists and #15 in FY2024; down 3 since FY2024.
19	RNK International, Inc. Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice) DHS (Department of Homeland Security)	$367,416	1.0%	Rank history: #42 in FY2021, #79 in FY2022, #19 in FY2023 and #33 in FY2024; up 14 since FY2024.
20	L3Harris Technologies, Inc. Top agencies Navy (Department of the Navy)	$360,000	1.0%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2023–FY2024 lists; returned.
21	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$342,518	0.9%	Rank history: not on the FY2021–FY2023 lists and #49 in FY2024; up 28 since FY2024.
22	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$338,003	0.9%	Rank history: #54 in FY2021, #15 in FY2022, #10 in FY2023 and #17 in FY2024; down 5 since FY2024.
23	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$300,828	0.8%	Rank history: #90 in FY2021, #56 in FY2022, #37 in FY2023 and #13 in FY2024; down 10 since FY2024.
24	Lotususa, Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency) Army (Department of the Army)	$288,553	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
25	Hamm Mechanical, LLC Top agencies VA (Department of Veterans Affairs)	$249,682	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
26	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$233,895	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
27	Bighorn Solutions LLC Top agencies DLA (Defense Logistics Agency)	$233,103	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
28	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$233,063	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
29	Cold LLC Top agencies DLA (Defense Logistics Agency)	$229,500	0.6%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2024; up 39 since FY2024.
30	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$228,141	0.6%	Rank history: #100 in FY2021, not on the FY2022 list, #50 in FY2023 and #67 in FY2024; up 37 since FY2024.
31	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$224,662	0.6%	Rank history: #39 in FY2021, #28 in FY2022, #51 in FY2023 and #55 in FY2024; up 24 since FY2024.
32	International Thermal Research Ltd Top agencies DLA (Defense Logistics Agency)	$215,675	0.6%	Rank history: #15 in FY2021, #5 in FY2022, #18 in FY2023 and #12 in FY2024; down 20 since FY2024.
33	JEM Engineering Solutions Top agencies USAF (Department of the Air Force)	$202,923	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
34	Valad Electric Heating Corp. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$196,731	0.5%	Rank history: #34 in FY2021, #29 in FY2022, #65 in FY2023 and #21 in FY2024; down 13 since FY2024.
35	Ray Blackman Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$188,500	0.5%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023 and not on the FY2024 list; returned.
36	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$186,233	0.5%	Rank history: #14 in FY2021, #44 in FY2022, #75 in FY2023 and #98 in FY2024; up 62 since FY2024.
37	Taza Supplies Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$176,617	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
38	Steel LLC Top agencies USDA (Department of Agriculture)	$176,504	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
39	Supherb Logistics LLC Top agencies DLA (Defense Logistics Agency)	$166,470	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
40	Cepeda Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$164,343	0.5%	Rank history: #96 in FY2021, not on the FY2022 list, #90 in FY2023 and #61 in FY2024; up 21 since FY2024.
41	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$152,594	0.4%	Rank history: not on the FY2021 list, #80 in FY2022, #78 in FY2023 and #48 in FY2024; up 7 since FY2024.
42	K5 Defense LLC Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency) Army (Department of the Army)	$152,442	0.4%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #14 in FY2024; down 28 since FY2024.
43	Frawner Corporation Top agencies USAF (Department of the Air Force)	$145,000	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
44	Hartzell Engine Technologies LLC Top agencies DLA (Defense Logistics Agency)	$133,481	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
45	Caprice Electronics, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$126,134	0.3%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and not on the FY2024 list; up 69 since FY2024.
46	Howland Pump & Supply Co Inc. Top agencies DOJ (Department of Justice)	$124,380	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2024; down 14 since FY2024.
47	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$122,701	0.3%	Rank history: not on the FY2021–FY2024 lists; up 167 since FY2024.
48	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$122,145	0.3%	Rank history: #20 in FY2021, #21 in FY2022, #12 in FY2023 and #85 in FY2024; up 37 since FY2024.
49	Parliament LLC Top agencies USAF (Department of the Air Force)	$121,000	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
50	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$119,591	0.3%	Rank history: #59 in FY2021, #72 in FY2022, #26 in FY2023 and #18 in FY2024; down 32 since FY2024.
51	Waterbury Plumbing & Heating Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$114,766	0.3%	Rank history: #32 in FY2021, not on the FY2022 list, #82 in FY2023 and #65 in FY2024; up 14 since FY2024.
52	Critical Procurement LLC Top agencies DLA (Defense Logistics Agency)	$114,060	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
53	Commercial Pool Services of Fort Walton Beach, LLC Top agencies USAF (Department of the Air Force)	$111,746	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	TJR Procurement, LLC Top agencies DLA (Defense Logistics Agency)	$107,213	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
55	Bennett-Alvarado, Inc. Top agencies DOE (Department of Energy)	$105,122	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
56	Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$104,077	0.3%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2024; up 34 since FY2024.
57	B & H International LLC Top agencies USAF (Department of the Air Force)	$98,376	0.3%	Rank history: not on the FY2021–FY2024 lists; up 62 since FY2024.
58	Elle Logistics Company, LLC Top agencies DLA (Defense Logistics Agency)	$96,392	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	Active Gear Company of Canada Limited Top agencies DLA (Defense Logistics Agency)	$92,932	0.3%	Rank history: #61 in FY2021, #63 in FY2022, #39 in FY2023 and #87 in FY2024; up 28 since FY2024.
60	Juniper Elbow Co. Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$92,064	0.3%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2023–FY2024 lists; up 100 since FY2024.
61	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$89,639	0.2%	Rank history: not on the FY2021 list, #52 in FY2022 and not on the FY2023–FY2024 lists; returned.
62	Vesequ LLC Top agencies DLA (Defense Logistics Agency)	$88,856	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Hatfield and Company Inc. Top agencies Army (Department of the Army)	$88,037	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
64	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$86,746	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 20 since FY2024.
65	Industrial Heat Transfer, Inc. Top agencies Commerce (Department of Commerce)	$85,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Viking Innovations LLC Top agencies DLA (Defense Logistics Agency)	$84,000	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
67	Onodi Tool & Engineering Co Top agencies DLA (Defense Logistics Agency)	$82,570	0.2%	Rank history: #53 in FY2021, not on the FY2022 list, #66 in FY2023 and #70 in FY2024; up 3 since FY2024.
68	Totem Equipment and Supply, Inc. Top agencies USAF (Department of the Air Force)	$82,100	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Jnorg LLC Top agencies VA (Department of Veterans Affairs)	$81,200	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	Capp LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$80,933	0.2%	Rank history: not on the FY2021 list, #90 in FY2022 and not on the FY2023–FY2024 lists; up 66 since FY2024.
71	MP Aero LLC Top agencies DLA (Defense Logistics Agency)	$78,490	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
72	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$77,700	0.2%	Rank history: not on the FY2021–FY2024 lists; up 52 since FY2024.
73	Cooney Coil & Energy, LLC Top agencies VA (Department of Veterans Affairs)	$75,745	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
74	CM Placid LLC Top agencies USAF (Department of the Air Force)	$75,425	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
75	Samit LLC Top agencies DLA (Defense Logistics Agency)	$71,492	0.2%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and not on the FY2024 list; up 108 since FY2024.
76	EOS Inc. Top agencies DLA (Defense Logistics Agency)	$66,341	0.2%	Rank history: not on the FY2021–FY2024 lists; up 106 since FY2024.
77	Mckenna Brytan Industries LLC Top agencies DLA (Defense Logistics Agency)	$64,567	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
78	Douglas Food Stores Inc. Top agencies DLA (Defense Logistics Agency)	$63,789	0.2%	Rank history: #69 in FY2021, #57 in FY2022, not on the FY2023 list and #51 in FY2024; down 27 since FY2024.
79	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$63,383	0.2%	Rank history: #40 in FY2021, not on the FY2022 list, #64 in FY2023 and not on the FY2024 list; up 79 since FY2024.
80	Dt-Trak Consulting, Inc. Top agencies DOI (Department of the Interior)	$61,396	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2024 list; returned.
81	Tayco Engineering, Inc. Top agencies Navy (Department of the Navy)	$59,284	0.2%	Rank history: not on the FY2021 list, #35 in FY2022 and not on the FY2023–FY2024 lists; returned.
82	Saker Mechanical, Inc. Top agencies HHS (Department of Health and Human Services)	$55,932	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	Aqua Logic, Inc. Top agencies DOI (Department of the Interior)	$55,208	0.2%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; unchanged since FY2024.
84	Export 220Volt Inc. Top agencies DOS (Department of State)	$55,187	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2024; down 22 since FY2024.
85	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$55,133	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
86	The Globe Equipment Company Inc Top agencies DLA (Defense Logistics Agency)	$54,870	0.2%	Rank history: #74 in FY2021 and not on the FY2022–FY2024 lists; up 54 since FY2024.
87	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$54,267	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Durex International Corp. Top agencies DLA (Defense Logistics Agency)	$53,798	0.1%	Rank history: not on the FY2021 list, #14 in FY2022, not on the FY2023 list and #43 in FY2024; down 45 since FY2024.
89	Fed Crew Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$50,550	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Lentros Engineering, Inc. Top agencies Army (Department of the Army)	$50,304	0.1%	Rank history: not on the FY2021 list, #42 in FY2022 and not on the FY2023–FY2024 lists; returned.
91	Madison Electric Co Top agencies DLA (Defense Logistics Agency)	$49,768	0.1%	Rank history: #50 in FY2021, #98 in FY2022, not on the FY2023 list and #63 in FY2024; down 28 since FY2024.
92	Akatake Co.,Ltd. Top agencies Navy (Department of the Navy)	$49,514	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$48,728	0.1%	Rank history: #73 in FY2021, not on the FY2022–FY2023 lists and #37 in FY2024; down 56 since FY2024.
94	Water Heater Distributors, LLC Top agencies DOJ (Department of Justice)	$48,630	0.1%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #40 in FY2024; down 54 since FY2024.
95	Allclear Aerospace & Defense, Inc. Top agencies Navy (Department of the Navy)	$47,139	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
96	Red Hill Ventures LLC Top agencies USDA (Department of Agriculture)	$47,003	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Meak Solutions Llc. Top agencies VA (Department of Veterans Affairs)	$46,999	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	Piraeus International, Inc. Top agencies DOS (Department of State)	$44,763	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Statz Corp Top agencies DLA (Defense Logistics Agency)	$43,550	0.1%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; down 49 since FY2024.
100	Taft Engineering, Inc. Top agencies DOJ (Department of Justice)	$41,667	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 239 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 $36.5 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 4520 contractors in FY2025?

1. Lockheed Martin Corporation ($4.12M), 2. Windward Enterprises, LLC ($3.99M), 3. Argo Turboserve Corporation ($2.8M), 4. Boneal, Incorporated ($2.73M), 5. The Electric Heater Co ($1.56M), 6. R & M Government Services Inc. ($889K), 7. Pioneer Industries, LLC ($854K), 8. Integrated Procurement Technologies ($634K), 9. S I T Corporation ($617K), 10. Thermo-Cycler Industries Inc. ($583K).

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