Top 100 Contractors in PSC 4410: Industrial Boilers, FY2022

Name: Top 100 Contractors in PSC 4410: Industrial Boilers, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 56% of FY2022 PSC 4410 contract dollars

Contract obligations: $9,525,565 Net of deobligations, by contracts coded PSC 4410
Contractors: 111 Parent companies with an obligation
Largest contractor: K2 Contracting Group, LLC $1.04 million, 10.6% 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	K2 Contracting Group, LLC Top agencies DOT (Department of Transportation)	$1,044,800	10.6%	Rank history: #37 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; up 36 since FY2021.
2	Accudyne Systems, Inc. Top agencies Army (Department of the Army)	$778,900	7.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
3	Atlantic Pacific Standard LLC Top agencies HHS (Department of Health and Human Services)	$734,978	7.5%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; new.
4	Pyro Combustion & Controls Inc. Top agencies USAF (Department of the Air Force)	$624,800	6.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
5	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$598,964	6.1%	Rank history: #15 in FY2021, #54 in FY2023, #96 in FY2024 and #3 in FY2025; up 10 since FY2021.
6	Bay Associates Group LLC Top agencies WHS (DOD Washington Headquarters Service)	$467,090	4.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
7	Siemens Aktiengesellschaft Through Siemens S.P.A. Top agencies Army (Department of the Army)	$446,728	4.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
8	Patriot Mechanical, LLC Top agencies USAF (Department of the Air Force)	$381,979	3.9%	Rank history: #2 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
9	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$209,275	2.1%	Rank history: not on the FY2021 list, #25 in FY2023, #92 in FY2024 and #19 in FY2025; new.
10	R.p. Fedder Industrial, LLC Top agencies VA (Department of Veterans Affairs)	$199,900	2.0%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
11	Argo Turboserve Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$198,785	2.0%	Rank history: #1 in FY2021, #6 in FY2023, #8 in FY2024 and #16 in FY2025; down 10 since FY2021.
12	3Kpc, Inc. Top agencies DOL (Department of Labor)	$176,900	1.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
13	Maxim Evaporators of America, LLC Top agencies DLA (Defense Logistics Agency)	$164,325	1.7%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #5 in FY2025; new.
14	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$159,998	1.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
15	Apex Mechanical LLC Top agencies Army (Department of the Army)	$125,145	1.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
16	Eastern Controls, LLC of Pa Top agencies Navy (Department of the Navy)	$121,806	1.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
17	Reagent World Inc Top agencies DOI (Department of the Interior)	$118,736	1.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #13 in FY2025; new.
18	Water Heater Distributors, LLC Top agencies DOJ (Department of Justice)	$107,330	1.1%	Rank history: not on the FY2021 list, #59 in FY2023, #20 in FY2024 and #47 in FY2025; new.
19	Phoenix Systems Engineering Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$105,621	1.1%	Rank history: #19 in FY2021, #65 in FY2023, #31 in FY2024 and #55 in FY2025; unchanged since FY2021.
20	J.m. Canty, Inc. Top agencies Navy (Department of the Navy)	$104,974	1.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.
21	Aantilia LLC Top agencies USAF (Department of the Air Force)	$102,939	1.0%	Rank history: #34 in FY2021, not on the FY2023 list, #21 in FY2024 and #42 in FY2025; up 13 since FY2021.
22	Clayton Manufacturing Company Top agencies Army (Department of the Army)	$99,116	1.0%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
23	J.t. Systems, Inc. Top agencies Navy (Department of the Navy)	$92,900	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
24	Heat and Treat of South Texas, L.L.C. Top agencies USAF (Department of the Air Force)	$91,619	0.9%	Rank history: not on the FY2021 list, not on the FY2023 list, #40 in FY2024 and not on the FY2025 list; new.
25	Hydronic Technology, Inc. Top agencies Navy (Department of the Navy)	$91,083	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
26	Brown Point Facility Management Solutions, LLC Top agencies DOJ (Department of Justice)	$90,085	0.9%	Rank history: not on the FY2021 list, #15 in FY2023 and not on the FY2024–FY2025 lists; new.
27	Jackson Mechanical Service Inc. Top agencies VA (Department of Veterans Affairs)	$90,000	0.9%	Rank history: #41 in FY2021, not on the FY2023 list, #30 in FY2024 and not on the FY2025 list; up 14 since FY2021.
28	TECH Service Solutions LLC Top agencies USAF (Department of the Air Force)	$87,480	0.9%	Rank history: not on the FY2021 list, #21 in FY2023 and not on the FY2024–FY2025 lists; new.
29	Red Orange North America Inc. Top agencies DHS (Department of Homeland Security)	$84,150	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
30	N2Ec Aircon and Heating Corporation Top agencies DOI (Department of the Interior)	$81,831	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
31	Redguard LLC Top agencies USAF (Department of the Air Force)	$74,500	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
32	Ryang H KIM Top agencies Army (Department of the Army)	$71,389	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Ritz Construction Inc. Top agencies USAF (Department of the Air Force)	$70,604	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	Arjo Inc. Through Getinge USA Sales, LLC Top agencies DLA (Defense Logistics Agency)	$66,554	0.7%	Rank history: not on the FY2021 list, #61 in FY2023 and not on the FY2024–FY2025 lists; new.
35	Industrial Water Engineering, Inc. Top agencies HHS (Department of Health and Human Services)	$63,410	0.6%	Rank history: #25 in FY2021, #36 in FY2023, #27 in FY2024 and not on the FY2025 list; down 10 since FY2021.
36	Yearout Service LLC Through Yearout Mechanical, LLC / Dba: Welch's Boiler Service, LLC Top agencies HHS (Department of Health and Human Services)	$60,631	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
37	Industrial Heat Technologies, Inc. Top agencies DOJ (Department of Justice)	$60,345	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
38	Coil Winding Specialist, Inc. Top agencies USAF (Department of the Air Force)	$59,595	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
39	PKJ International LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$56,841	0.6%	Rank history: not on the FY2021 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new.
40	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$55,006	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
41	Meilner Mechanical Sales, Inc. Top agencies USDA (Department of Agriculture)	$54,000	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
42	Highland Engineering, Inc. Top agencies USAF (Department of the Air Force)	$49,757	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
43	All State Construction Inc. Top agencies DOJ (Department of Justice)	$44,857	0.5%	Rank history: not on the FY2021 list, #5 in FY2023 and not on the FY2024–FY2025 lists; new.
44	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$43,162	0.4%	Rank history: #59 in FY2021, not on the FY2023 list, #97 in FY2024 and #32 in FY2025; up 15 since FY2021.
45	RNK International, Inc. Top agencies USAF (Department of the Air Force)	$39,921	0.4%	Rank history: #44 in FY2021, not on the FY2023–FY2024 lists and #37 in FY2025; down 1 since FY2021.
46	AAA Energy Service Co Top agencies DOT (Department of Transportation)	$38,900	0.4%	Rank history: not on the FY2021 list, #95 in FY2023 and not on the FY2024–FY2025 lists; new.
47	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$37,829	0.4%	Rank history: #39 in FY2021, #91 in FY2023, #45 in FY2024 and #11 in FY2025; down 8 since FY2021.
48	BSA Products, LLC Top agencies DLA (Defense Logistics Agency)	$37,562	0.4%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
49	Mojave Desert Air Quality Management District Top agencies DOJ (Department of Justice)	$36,261	0.4%	Rank history: #42 in FY2021, not on the FY2023–FY2024 lists and #58 in FY2025; down 7 since FY2021.
50	K5 Defense LLC Top agencies Navy (Department of the Navy)	$35,762	0.4%	Rank history: not on the FY2021 list, #26 in FY2023 and not on the FY2024–FY2025 lists; new.
51	DAS Hvacr Service LLC Top agencies DOJ (Department of Justice)	$34,811	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
52	Hydronic & Steam Equipment Co Inc. Top agencies Navy (Department of the Navy)	$31,733	0.3%	Rank history: not on the FY2021 list, #34 in FY2023 and not on the FY2024–FY2025 lists; new.
53	S I T Corporation Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$31,025	0.3%	Rank history: #7 in FY2021, #96 in FY2023, #87 in FY2024 and #61 in FY2025; down 46 since FY2021.
54	Delval Equipment Corporation Top agencies HHS (Department of Health and Human Services)	$27,230	0.3%	Rank history: #35 in FY2021, not on the FY2023–FY2024 lists and #39 in FY2025; down 19 since FY2021.
55	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$27,054	0.3%	Rank history: #18 in FY2021, #72 in FY2023, #44 in FY2024 and not on the FY2025 list; down 37 since FY2021.
56	Central Texas Commercial Air Conditioning and Heating, Inc. Top agencies USAF (Department of the Air Force)	$26,938	0.3%	Rank history: not on the FY2021 list, #27 in FY2023 and not on the FY2024–FY2025 lists; new.
57	Barrow Mechanical Inc. Top agencies Commerce (Department of Commerce)	$25,876	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	In-Mar Solutions LLC Top agencies DLA (Defense Logistics Agency)	$25,850	0.3%	Rank history: #99 in FY2021, #43 in FY2023, #47 in FY2024 and not on the FY2025 list; up 41 since FY2021.
59	Industrial Engineering and Equipment Company Incorporated Through Indeeco LLC Top agencies DLA (Defense Logistics Agency)	$23,984	0.2%	Rank history: #78 in FY2021, #33 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2021.
60	Adco Companies Inc Top agencies Army (Department of the Army)	$23,215	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
61	VES Co, Inc. Top agencies Navy (Department of the Navy)	$20,880	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
62	The Entwistle Trust Through The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency)	$20,655	0.2%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; up 26 since FY2021.
63	Electric Heater Company the Top agencies DLA (Defense Logistics Agency)	$20,529	0.2%	Rank history: #3 in FY2021 and not on the FY2023–FY2025 lists; down 60 since FY2021.
64	Coastal Inspection Services,Incorporated Top agencies USAF (Department of the Air Force)	$20,496	0.2%	Rank history: #51 in FY2021, #58 in FY2023, #66 in FY2024 and #76 in FY2025; down 13 since FY2021.
65	Capitol Boiler Works Inc. Top agencies Smithsonian (Smithsonian Institution)	$20,295	0.2%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
66	MC Cook Boiler & Pump Co Top agencies USAF (Department of the Air Force)	$20,010	0.2%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
67	Aviate Enterprises, Inc. Top agencies VA (Department of Veterans Affairs)	$19,917	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #46 in FY2024 and not on the FY2025 list; new.
68	Welch's Boiler Service, Inc. Top agencies HHS (Department of Health and Human Services)	$19,641	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	United Rentals, Inc. Top agencies USAF (Department of the Air Force)	$17,220	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 35 since FY2021.
70	Jet Inc. Top agencies DOS (Department of State)	$15,288	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
71	Winwholesale Inc. Through Temple Winnelson Co Top agencies Army (Department of the Army)	$15,041	0.2%	Rank history: #26 in FY2021, #97 in FY2023 and not on the FY2024–FY2025 lists; down 45 since FY2021.
72	Insparisk, LLC Top agencies DHS (Department of Homeland Security)	$15,000	0.2%	Rank history: #68 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
73	Wisco Supply Inc. Top agencies HHS (Department of Health and Human Services)	$14,836	0.2%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
74	Boiler TECH Inc. Top agencies VA (Department of Veterans Affairs)	$14,825	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	Export 220Volt Inc. Top agencies DOS (Department of State)	$14,576	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #4 in FY2025; new.
76	Grandida, LLC Top agencies Navy (Department of the Navy)	$13,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$12,800	0.1%	Rank history: #90 in FY2021, #99 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2021.
78	Executive Office of the State of Maryland Through The Environment Maryland Department Of Top agencies HHS (Department of Health and Human Services)	$12,626	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
79	Circle H Specialty, LLC Top agencies Army (Department of the Army)	$11,764	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Mat-Eriel Val-Ues, LLC Top agencies Army (Department of the Army)	$11,528	0.1%	Rank history: #49 in FY2021, not on the FY2023 list, #70 in FY2024 and not on the FY2025 list; down 31 since FY2021.
81	Rampart Plumbing and Heating Supply, Inc. Top agencies DOJ (Department of Justice)	$11,260	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
82	Pueblo Hotel Supply Co 2 awardees Top agencies DLA (Defense Logistics Agency)	$10,832	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 19 since FY2021.
83	Acco Engineered Systems, Inc. Top agencies VA (Department of Veterans Affairs)	$10,350	0.1%	Rank history: #97 in FY2021, not on the FY2023 list, #83 in FY2024 and not on the FY2025 list; up 14 since FY2021.
84	Douglas Food Stores Inc. Top agencies DLA (Defense Logistics Agency)	$9,305	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	Samit LLC Top agencies DLA (Defense Logistics Agency)	$9,192	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #81 in FY2025; new.
86	M & M Welding & Fabricators Inc. Top agencies Smithsonian (Smithsonian Institution)	$8,600	0.1%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; down 20 since FY2021.
87	Johnson Controls Security Solutions LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,034	0.1%	Rank history: #84 in FY2021, #62 in FY2023, #91 in FY2024 and not on the FY2025 list; down 3 since FY2021.
88	Cole Industrial Inc. Top agencies Commerce (Department of Commerce)	$7,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Federal Realty Investment Co LLC Top agencies DLA (Defense Logistics Agency)	$6,089	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$5,649	0.1%	Rank history: #24 in FY2021, #82 in FY2023, #68 in FY2024 and #98 in FY2025; down 66 since FY2021.
91	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$5,468	0.1%	Rank history: #21 in FY2021, #40 in FY2023 and not on the FY2024–FY2025 lists; down 70 since FY2021.
92	Steelmasters of Columbus Inc. Top agencies DLA (Defense Logistics Agency)	$5,425	0.1%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
93	Heat Transfer Solutions, Inc. Top agencies USDA (Department of Agriculture)	$4,995	0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
94	Farrell Equipment & Controls, Inc. Top agencies Navy (Department of the Navy)	$4,000	<0.1%	Rank history: not on the FY2021 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new.
95	The Globe Equipment Company Inc Top agencies DLA (Defense Logistics Agency)	$3,862	<0.1%	Rank history: not on the FY2021 list, #86 in FY2023, #84 in FY2024 and not on the FY2025 list; new.
96	Vertical Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$3,590	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
97	Power Mechanical Inc. Top agencies Navy (Department of the Navy)	$3,171	<0.1%	Rank history: not on the FY2021 list, #11 in FY2023, #2 in FY2024 and #17 in FY2025; new.
98	New Era Contract Sales Inc. Top agencies DLA (Defense Logistics Agency)	$1,580	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #93 in FY2024 and #89 in FY2025; new.
99	W. & O. Supply Inc. Top agencies DLA (Defense Logistics Agency)	$1,576	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$977	<0.1%	Rank history: not on the FY2021 list, #83 in FY2023, #55 in FY2024 and #68 in FY2025; up 3 since FY2021.

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100 of 111 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 $9.84 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 2022 ran Oct 1, 2021 – Sep 30, 2022. 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 FY2021. "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 FY2021 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 4410 contractors in FY2022?

1. K2 Contracting Group, LLC ($1.04M), 2. Accudyne Systems, Inc. ($779K), 3. Atlantic Pacific Standard LLC ($735K), 4. Pyro Combustion & Controls Inc. ($625K), 5. Pioneer Industries, LLC ($599K), 6. Bay Associates Group LLC ($467K), 7. Siemens Aktiengesellschaft ($447K), 8. Patriot Mechanical, LLC ($382K), 9. MCO Solutions, Inc. ($209K), 10. R.p. Fedder Industrial, LLC ($200K).

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