Top 100 Contractors in NAICS 56179: Other Services to Buildings and Dwellings, FY2021

Name: Top 100 Contractors in NAICS 56179: Other Services to Buildings and Dwellings, FY2021
Creator: GovTribe

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

The top 10 won 31% of FY2021 NAICS 56179 contract dollars

Contract obligations: $61,396,758 Net of deobligations, by contracts coded NAICS 56179 or a code under it
Contractors: 470 Parent companies with an obligation
Largest contractor: Goodwill Industries of North Georgia, Inc. $6.88 million, 9.7% 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	Goodwill Industries of North Georgia, Inc. Top agencies HHS (Department of Health and Human Services)	$6,876,798	9.7%	Rank history: #1 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
2	DWC Building Construction Company Top agencies Army (Department of the Army)	$3,826,316	5.4%	Rank history: #3 in FY2022, #2 in FY2023, #2 in FY2024 and not on the FY2025 list; up 1 since FY2020.
3	Mentis Sciences Inc. Top agencies DLA (Defense Logistics Agency)	$2,596,028	3.6%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
4	Mesa Photonics LLC Top agencies DLA (Defense Logistics Agency)	$1,600,000	2.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
5	Dexai Robotics Inc. Top agencies DLA (Defense Logistics Agency)	$1,588,637	2.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
6	Interdyne Corp Top agencies Army (Department of the Army)	$1,262,980	1.8%	Rank history: not on the FY2022–FY2025 lists; up 142 since FY2020.
7	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$1,214,832	1.7%	Rank history: #19 in FY2022, #9 in FY2023, #6 in FY2024 and #7 in FY2025; up 28 since FY2020.
8	IAW Construction, Inc. Top agencies VA (Department of Veterans Affairs)	$1,195,422	1.7%	Rank history: #68 in FY2022, not on the FY2023 list, #98 in FY2024 and not on the FY2025 list; up 23 since FY2020.
9	Kotobuki Shoji Limited Top agencies USAF (Department of the Air Force)	$990,688	1.4%	Rank history: #17 in FY2022, #8 in FY2023, #7 in FY2024 and #8 in FY2025; up 15 since FY2020.
10	E & S Construction, LLC Top agencies Army (Department of the Army)	$967,969	1.4%	Rank history: #41 in FY2022, #12 in FY2023, #5 in FY2024 and #6 in FY2025; up 5 since FY2020.
11	Shield Services LLC Top agencies Army (Department of the Army)	$967,619	1.4%	Rank history: #15 in FY2022, #30 in FY2023, #10 in FY2024 and #3 in FY2025; up 27 since FY2020.
12	West - C P M, Inc. Top agencies Navy (Department of the Navy)	$951,171	1.3%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
13	Parts Life Inc. Top agencies WHS (DOD Washington Headquarters Service)	$905,546	1.3%	Rank history: #2 in FY2022, not on the FY2023–FY2024 lists and #2 in FY2025; new, not ranked in FY2020.
14	A-Action Facility Services, Inc. Top agencies NARA (National Archives and Records Administration)	$851,770	1.2%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; up 132 since FY2020.
15	Elrim Construction Co., Ltd. Top agencies Army (Department of the Army)	$845,541	1.2%	Rank history: #38 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
16	Veterans Facility Services, Inc. Top agencies GSA (General Services Administration)	$815,709	1.1%	Rank history: not on the FY2022 list, #70 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
17	Gama-Tronik Brandschutzservice GMBH Through Gama-Tronik Brandschutzsysteme GMBH Top agencies Army (Department of the Army)	$776,094	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
18	M&C Venture Group, LLC Top agencies VA (Department of Veterans Affairs)	$624,990	0.9%	Rank history: #46 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
19	Haas II, Eugene C Top agencies USAF (Department of the Air Force)	$612,945	0.9%	Rank history: #79 in FY2022, #33 in FY2023, #42 in FY2024 and #73 in FY2025; up 102 since FY2020.
20	Milkie Lawn & Garden Service Inc. Top agencies Army (Department of the Army)	$596,848	0.8%	Rank history: #63 in FY2022, not on the FY2023 list, #23 in FY2024 and not on the FY2025 list; up 10 since FY2020.
21	Potts & Callahan Inc. Top agencies SSA (Social Security Administration)	$587,233	0.8%	Rank history: #73 in FY2022, not on the FY2023 list, #44 in FY2024 and #23 in FY2025; up 192 since FY2020.
22	Mem Contracting, Inc. Top agencies Army (Department of the Army)	$558,800	0.8%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
23	Alvin Ziegler Top agencies Army (Department of the Army)	$517,990	0.7%	Rank history: #62 in FY2022, #91 in FY2023, #28 in FY2024 and #36 in FY2025; up 13 since FY2020.
24	Chicago Iron Works Corporation Through National Air Duct Maintenance Corp Top agencies VA (Department of Veterans Affairs)	$510,693	0.7%	Rank history: #48 in FY2022, #7 in FY2023, #4 in FY2024 and not on the FY2025 list; up 16 since FY2020.
25	S-T Acquisition Co LLC Top agencies VA (Department of Veterans Affairs)	$502,838	0.7%	Rank history: #51 in FY2022, #45 in FY2023, #49 in FY2024 and #75 in FY2025; new, not ranked in FY2020.
26	Four Corners Clean LLC Top agencies DOI (Department of the Interior)	$495,424	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Air FLO Cleaning Systems LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs) Army (Department of the Army)	$491,761	0.7%	Rank history: #42 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
28	YOY Inc. Top agencies GSA (General Services Administration)	$458,184	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
29	Midwest Mowing, Inc. Top agencies Army (Department of the Army)	$448,747	0.6%	Rank history: #71 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
30	Fresco, Inc. Top agencies Smithsonian (Smithsonian Institution)	$444,334	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	Coles Group (The) LLC Top agencies Army (Department of the Army)	$440,885	0.6%	Rank history: #93 in FY2022, #90 in FY2023, not on the FY2024 list and #95 in FY2025; up 71 since FY2020.
32	Advance Lawn Service Co LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$440,301	0.6%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; up 82 since FY2020.
33	J & J Enterprises of Suffolk Corp. Top agencies Navy (Department of the Navy)	$418,334	0.6%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
34	E.E. Newcomer Enterprises Inc. Through D.h. Pace Company, Inc. Top agencies Treasury (Department of the Treasury)	$415,968	0.6%	Rank history: not on the FY2022–FY2025 lists; up 358 since FY2020.
35	Davalos Ayala, Edgar Damian Top agencies USSOCOM (United States Special Operations Command)	$403,977	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Eagle Pro Clean Inc. Top agencies Navy (Department of the Navy)	$393,264	0.6%	Rank history: #57 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
37	Textron Inc. Through Response Technologies LLC Top agencies DLA (Defense Logistics Agency)	$392,000	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
38	CCR Sales & Service, LLC Top agencies GSA (General Services Administration)	$375,480	0.5%	Rank history: #56 in FY2022, #49 in FY2023, #39 in FY2024 and #31 in FY2025; up 13 since FY2020.
39	US Vents, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$340,228	0.5%	Rank history: #100 in FY2022, #50 in FY2023, #41 in FY2024 and #50 in FY2025; up 18 since FY2020.
40	Ingot Ventilation Services Limited Top agencies USAF (Department of the Air Force)	$339,889	0.5%	Rank history: #65 in FY2022, #56 in FY2023, #52 in FY2024 and #49 in FY2025; up 20 since FY2020.
41	Life Safety Services LLC Top agencies VA (Department of Veterans Affairs)	$328,952	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	EST Companies LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$302,212	0.4%	Rank history: not on the FY2022–FY2025 lists; up 52 since FY2020.
43	Gulf Geoexchange and Consulting Services, Inc. Top agencies VA (Department of Veterans Affairs)	$292,504	0.4%	Rank history: #81 in FY2022, #55 in FY2023, #45 in FY2024 and #58 in FY2025; down 37 since FY2020.
44	Walking Waters Corp Top agencies Army (Department of the Army)	$291,098	0.4%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
45	Bright Co., Ltd. Top agencies USAF (Department of the Air Force)	$289,968	0.4%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
46	Advanced Future Group International Gen. Trading & Cont. Co. WLL Top agencies Army (Department of the Army)	$289,690	0.4%	Rank history: #82 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
47	Middlesex Building Services LLC Top agencies Army (Department of the Army)	$288,528	0.4%	Rank history: not on the FY2022–FY2024 lists and #37 in FY2025; new, not ranked in FY2020.
48	Mechanical Resources Incorporated Top agencies Navy (Department of the Navy)	$270,708	0.4%	Rank history: #66 in FY2022, #51 in FY2023, not on the FY2024 list and #28 in FY2025; down 3 since FY2020.
49	Duffield Aquatics Inc. Top agencies USAF (Department of the Air Force)	$265,741	0.4%	Rank history: not on the FY2022–FY2025 lists; up 259 since FY2020.
50	Suda Building Maintenance Co., Ltd. Top agencies USAF (Department of the Air Force)	$264,038	0.4%	Rank history: #74 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; up 13 since FY2020.
51	Ohana NUI Management Inc. Top agencies Navy (Department of the Navy)	$258,705	0.4%	Rank history: not on the FY2022–FY2025 lists; down 37 since FY2020.
52	GMB Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$258,099	0.4%	Rank history: #20 in FY2022, #3 in FY2023, #11 in FY2024 and #4 in FY2025; new, not ranked in FY2020.
53	United Pool Maintenance LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) DHS (Department of Homeland Security)	$250,923	0.4%	Rank history: #67 in FY2022, #28 in FY2023, #8 in FY2024 and #9 in FY2025; up 21 since FY2020.
54	E.r. Bakey Inc. Top agencies VA (Department of Veterans Affairs)	$249,600	0.4%	Rank history: #80 in FY2022, #60 in FY2023, #55 in FY2024 and #45 in FY2025; up 11 since FY2020.
55	Sageone, Inc. Top agencies Army (Department of the Army)	$249,141	0.3%	Rank history: #58 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
56	Viking Bros LLC Top agencies Army (Department of the Army)	$246,118	0.3%	Rank history: not on the FY2022–FY2023 lists, #84 in FY2024 and not on the FY2025 list; unchanged since FY2020.
57	CSP MGT LLC Top agencies VA (Department of Veterans Affairs)	$240,935	0.3%	Rank history: #87 in FY2022, #65 in FY2023, #100 in FY2024 and not on the FY2025 list; up 19 since FY2020.
58	Kyobo Construction Co.,Ltd Top agencies Army (Department of the Army)	$236,313	0.3%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
59	Four Tribes Enterprises, LLC Top agencies Navy (Department of the Navy)	$234,045	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	SKE Technical Services GMBH Through SKE Support Services GMBH Top agencies DOS (Department of State)	$233,167	0.3%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
61	New Techno Team LLC Top agencies Army (Department of the Army)	$232,989	0.3%	Rank history: #61 in FY2022, #47 in FY2023, #34 in FY2024 and #63 in FY2025; up 7 since FY2020.
62	IHI Corporation Through Inc Engineering Co.,Ltd. Top agencies USAF (Department of the Air Force)	$230,431	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Torres Christopher Top agencies USAF (Department of the Air Force)	$219,535	0.3%	Rank history: not on the FY2022–FY2024 lists and #54 in FY2025; new, not ranked in FY2020.
64	Affordable Pool & SPA Repair Inc. Top agencies Navy (Department of the Navy)	$218,326	0.3%	Rank history: #85 in FY2022 and not on the FY2023–FY2025 lists; up 8 since FY2020.
65	Princeton Professional Services, LLC Top agencies Army (Department of the Army)	$216,510	0.3%	Rank history: #76 in FY2022, #83 in FY2023, #95 in FY2024 and not on the FY2025 list; up 171 since FY2020.
66	Discount Hood Cleaning Top agencies USAF (Department of the Air Force)	$203,100	0.3%	Rank history: #90 in FY2022, #66 in FY2023, #56 in FY2024 and #59 in FY2025; new, not ranked in FY2020.
67	Ahtna, Incorporated Through Ahtna Global LLC Top agencies DHS (Department of Homeland Security)	$200,584	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Flash Exterminating, Inc. Top agencies Army (Department of the Army)	$200,459	0.3%	Rank history: #91 in FY2022, not on the FY2023–FY2024 lists and #65 in FY2025; new, not ranked in FY2020.
69	Consolidated Transportation Services Inc. Top agencies Army (Department of the Army)	$195,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Jaeyoung S&C Top agencies Army (Department of the Army)	$192,369	0.3%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
71	Mikon Services and Consultants, LLC Top agencies USAF (Department of the Air Force)	$191,900	0.3%	Rank history: #89 in FY2022, #58 in FY2023, #64 in FY2024 and #47 in FY2025; up 13 since FY2020.
72	Williamsville Resources II, Inc. Top agencies Navy (Department of the Navy)	$191,273	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Superior Tasking Advantage Contracting, Inc. Top agencies Navy (Department of the Navy)	$190,182	0.3%	Rank history: #99 in FY2022, #68 in FY2023, #59 in FY2024 and #61 in FY2025; up 9 since FY2020.
74	Asvf Integrated Contractor, Corp. Top agencies VA (Department of Veterans Affairs)	$180,184	0.3%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
75	Rickman Enterprise Group, LLC Top agencies Army (Department of the Army)	$177,133	0.2%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and not on the FY2025 list; up 52 since FY2020.
76	Optimal Property Preservation LLC Top agencies USAF (Department of the Air Force)	$174,340	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Kunkle S Electrical Servi Top agencies Army (Department of the Army)	$173,475	0.2%	Rank history: #98 in FY2022, #77 in FY2023, #70 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
78	Goodwin Facilities Solutions, LLC Top agencies VA (Department of Veterans Affairs)	$173,140	0.2%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
79	H.v.a.c. LLC Top agencies USAF (Department of the Air Force)	$164,839	0.2%	Rank history: #92 in FY2022, #73 in FY2023, #62 in FY2024 and #62 in FY2025; new, not ranked in FY2020.
80	Servicemen Business Group LLC Top agencies VA (Department of Veterans Affairs)	$162,800	0.2%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
81	Continental Pools, Inc. Top agencies USAF (Department of the Air Force)	$159,475	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	J. Marchese and Sons, Inc. Top agencies DOI (Department of the Interior)	$155,000	0.2%	Rank history: not on the FY2022 list, #78 in FY2023, #73 in FY2024 and #79 in FY2025; up 8 since FY2020.
83	Bright Regards, LLC Top agencies GSA (General Services Administration)	$154,143	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Ganoson Inc. Top agencies Army (Department of the Army)	$152,044	0.2%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
85	Santiago Roberto Top agencies Army (Department of the Army)	$151,530	0.2%	Rank history: not on the FY2022–FY2024 lists and #76 in FY2025; new, not ranked in FY2020.
86	Tentsouth LLC Top agencies USAF (Department of the Air Force)	$150,000	0.2%	Rank history: not on the FY2022–FY2025 lists; up 74 since FY2020.
87	Blackhorse LLC Top agencies Army (Department of the Army)	$147,561	0.2%	Rank history: not on the FY2022–FY2024 lists and #69 in FY2025; new, not ranked in FY2020.
88	Yard Chief Yard Care, Inc. Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce)	$147,232	0.2%	Rank history: not on the FY2022–FY2025 lists; down 49 since FY2020.
89	Joliva Trucking LLC Top agencies USAF (Department of the Air Force)	$144,577	0.2%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
90	Safety-Hood Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$137,866	0.2%	Rank history: not on the FY2022 list, #82 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
91	Protec Facility Solutions GMBH Top agencies Army (Department of the Army)	$137,518	0.2%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
92	Aveco Holding AG Through Wisag Technical Military Support Services GMBH & Co. KG Top agencies USAF (Department of the Air Force)	$134,440	0.2%	Rank history: not on the FY2022 list, #75 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
93	Yupa Corporation Top agencies Navy (Department of the Navy)	$127,120	0.2%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
94	R.l.s. Associates, LLC Top agencies Army (Department of the Army)	$123,735	0.2%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
95	Hill's Pool Service, Inc. Top agencies VA (Department of Veterans Affairs)	$123,679	0.2%	Rank history: not on the FY2022–FY2025 lists; up 188 since FY2020.
96	Legion Service Provider Top agencies Army (Department of the Army)	$123,565	0.2%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
97	Chase, Carson & White, L.L.C. Top agencies USAF (Department of the Air Force)	$122,837	0.2%	Rank history: not on the FY2022–FY2023 lists, #83 in FY2024 and #85 in FY2025; up 84 since FY2020.
98	Hurtvet Subcontracting, Inc. Top agencies VA (Department of Veterans Affairs)	$122,300	0.2%	Rank history: not on the FY2022–FY2025 lists; up 158 since FY2020.
99	Advanced Underground Inspection LLC Top agencies Army (Department of the Army)	$122,205	0.2%	Rank history: not on the FY2022 list, #69 in FY2023 and not on the FY2024–FY2025 lists; down 55 since FY2020.
100	Andrew Slocum Top agencies Army (Department of the Army)	$121,750	0.2%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and #97 in FY2025; new, not ranked in FY2020.

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100 of 470 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 56179

Code	Net obligations	Largest contractor
561790 Other Services to Buildings and Dwellings	$61,396,758	Goodwill Industries of North Georgia, Inc.

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 $71.2 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 56179 contractors in FY2021?

1. Goodwill Industries of North Georgia, Inc. ($6.88M), 2. DWC Building Construction Company ($3.83M), 3. Mentis Sciences Inc. ($2.6M), 4. Mesa Photonics LLC ($1.6M), 5. Dexai Robotics Inc. ($1.59M), 6. Interdyne Corp ($1.26M), 7. Goodwill Industries of San Antonio Contract Services ($1.21M), 8. IAW Construction, Inc. ($1.2M), 9. Kotobuki Shoji Limited ($991K), 10. E & S Construction, LLC ($968K).

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