Top 100 Contractors in NAICS 531120: Lessors of Nonresidential Buildings (except Miniwarehouses), FY2025

Name: Top 100 Contractors in NAICS 531120: Lessors of Nonresidential Buildings (except Miniwarehouses), FY2025
Creator: GovTribe

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

The top 10 won 31% of FY2025 NAICS 531120 contract dollars

Contract obligations: $122,623,130 Net of deobligations, by contracts coded NAICS 531120
Contractors: 374 Parent companies with an obligation
Largest contractor: Smithsonian Institution $20.7 million, 10.0% 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	Smithsonian Institution Top agencies Smithsonian (Smithsonian Institution)	$20,720,456	10.0%	Rank history: not on the FY2021–FY2024 lists; new.
2	Ma-Chis International Services, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$8,358,187	4.0%	Rank history: #5 in FY2021, #2 in FY2022, #4 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Trizechahn Colony Square GP Limited Liability Company Top agencies Smithsonian (Smithsonian Institution)	$6,735,375	3.3%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #3 in FY2024; unchanged since FY2024.
4	Hines GS Properties LLC Top agencies HHS (Department of Health and Human Services)	$5,614,638	2.7%	Rank history: not on the FY2021–FY2024 lists; new.
5	Franklin Court Inc. Top agencies MCC (Millennium Challenge Corporation)	$5,281,161	2.6%	Rank history: #3 in FY2021, #5 in FY2022, #6 in FY2023 and not on the FY2024 list; returned.
6	Specialized Testing and Construction, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,758,589	1.8%	Rank history: not on the FY2021–FY2024 lists; new.
7	Usgbf Nci, LLC Top agencies HHS (Department of Health and Human Services)	$3,758,132	1.8%	Rank history: #14 in FY2021, #12 in FY2022, #9 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	5600 Fishers Lane LLC Top agencies HHS (Department of Health and Human Services)	$3,292,805	1.6%	Rank history: #12 in FY2021, #9 in FY2022, #7 in FY2023 and #7 in FY2024; down 1 since FY2024.
9	Kwikspace Guam Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,170,834	1.5%	Rank history: #30 in FY2021, #42 in FY2022, #12 in FY2023 and #10 in FY2024; up 1 since FY2024.
10	Koman Sustainable Solutions, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$3,006,486	1.5%	Rank history: not on the FY2021 list, #10 in FY2022, #1 in FY2023 and #15 in FY2024; up 5 since FY2024.
11	Environmental Chemical Corporation Top agencies Navy (Department of the Navy)	$2,957,189	1.4%	Rank history: #11 in FY2021, #8 in FY2022, #8 in FY2023 and #9 in FY2024; down 2 since FY2024.
12	Miami Wiipica, LLC Top agencies USAF (Department of the Air Force)	$2,285,400	1.1%	Rank history: #79 in FY2021, not on the FY2022–FY2023 lists and #13 in FY2024; up 1 since FY2024.
13	Aktio Corporation Top agencies Navy (Department of the Navy)	$2,177,919	1.1%	Rank history: #15 in FY2021, #19 in FY2022, #38 in FY2023 and #19 in FY2024; up 6 since FY2024.
14	Swan Contracting LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,853,334	0.9%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023 and #21 in FY2024; up 7 since FY2024.
15	SES Electrical LLC 2 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,779,268	0.9%	Rank history: #80 in FY2021, #36 in FY2022, #34 in FY2023 and #50 in FY2024; up 35 since FY2024.
16	Dominion Federal Corporation Top agencies USAF (Department of the Air Force)	$1,710,912	0.8%	Rank history: #27 in FY2021, #18 in FY2022, #10 in FY2023 and #18 in FY2024; up 2 since FY2024.
17	All Saints Episcopal School Top agencies CNCS (Corporation for National and Community Service)	$1,647,563	0.8%	Rank history: #19 in FY2021, #26 in FY2022, #16 in FY2023 and #20 in FY2024; up 3 since FY2024.
18	Unami LLC Top agencies Navy (Department of the Navy)	$1,612,718	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
19	Vesta Housing Solutions, LLC Top agencies Army (Department of the Army)	$1,530,816	0.7%	Rank history: not on the FY2021 list, #24 in FY2022, #19 in FY2023 and #22 in FY2024; up 3 since FY2024.
20	Abel Fire Equipment Inc. Top agencies USDA (Department of Agriculture)	$1,404,424	0.7%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 33 since FY2024.
21	Expeditors By Lindale Inc. Top agencies USDA (Department of Agriculture)	$1,397,729	0.7%	Rank history: not on the FY2021–FY2024 lists; up 243 since FY2024.
22	Integrated Modular Solutions LLC Top agencies USAF (Department of the Air Force)	$1,260,503	0.6%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023 and #16 in FY2024; down 6 since FY2024.
23	All American Emergency Services Top agencies USDA (Department of Agriculture)	$1,249,898	0.6%	Rank history: not on the FY2021–FY2023 lists and #66 in FY2024; up 43 since FY2024.
24	Reasor Building Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,143,614	0.6%	Rank history: #20 in FY2021, #11 in FY2022, #14 in FY2023 and #11 in FY2024; down 13 since FY2024.
25	Boxx Modular, Inc. Top agencies Navy (Department of the Navy)	$999,687	0.5%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 57 since FY2024.
26	Newimar Sociedad Anonima Top agencies Navy (Department of the Navy)	$998,099	0.5%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #28 in FY2024; up 2 since FY2024.
27	Top Gun Lighting and Industrial Supplies, LLC Top agencies USDA (Department of Agriculture)	$975,516	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
28	Marianas Integration LLC Top agencies USAF (Department of the Air Force)	$959,994	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
29	Structured Facilities JV LLC Top agencies USAF (Department of the Air Force)	$850,041	0.4%	Rank history: #99 in FY2021, #33 in FY2022, #31 in FY2023 and #32 in FY2024; up 3 since FY2024.
30	Iron Mountain Incorporated 3 awardees, including Crozier Fine Arts Inc. and Iron Mountain / National Underground Storage, Inc. Top agencies Smithsonian (Smithsonian Institution)	$815,376	0.4%	Rank history: #67 in FY2021, not on the FY2022 list, #42 in FY2023 and not on the FY2024 list; returned.
31	Trinity University Top agencies Army (Department of the Army)	$803,085	0.4%	Rank history: not on the FY2021 list, #40 in FY2022, #36 in FY2023 and #34 in FY2024; up 3 since FY2024.
32	Fire Dawg Green, Inc. Top agencies USDA (Department of Agriculture)	$791,850	0.4%	Rank history: not on the FY2021–FY2023 lists and #35 in FY2024; up 3 since FY2024.
33	Koman Construction, LLC Top agencies USAF (Department of the Air Force)	$745,897	0.4%	Rank history: not on the FY2021–FY2023 lists and #58 in FY2024; up 25 since FY2024.
34	310 Dust Control LLC Top agencies USDA (Department of Agriculture)	$731,180	0.4%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 11 since FY2024.
35	AAA Response, LLC Top agencies USDA (Department of Agriculture)	$716,850	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
36	USP 700 6TH Street LLC	$698,510	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
37	A C Blount Concrete Service Inc. Top agencies Navy (Department of the Navy)	$681,294	0.3%	Rank history: #24 in FY2021, #39 in FY2022, #21 in FY2023 and #41 in FY2024; up 4 since FY2024.
38	Landscape Management Systems Inc. Top agencies USAF (Department of the Air Force)	$617,743	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
39	Recosol Solino Sanchez SL. Top agencies Navy (Department of the Navy)	$613,510	0.3%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2024; down 9 since FY2024.
40	Mcgrath Rentcorp Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) Army (Department of the Army)	$560,149	0.3%	Rank history: #9 in FY2021, #32 in FY2022, #22 in FY2023 and #26 in FY2024; down 14 since FY2024.
41	Vails Gate Business Center LLC Top agencies Treasury (Department of the Treasury)	$559,686	0.3%	Rank history: not on the FY2021–FY2023 lists and #38 in FY2024; down 3 since FY2024.
42	Auburn University Top agencies USDA (Department of Agriculture)	$554,140	0.3%	Rank history: #48 in FY2021, #84 in FY2022, #20 in FY2023 and #39 in FY2024; down 3 since FY2024.
43	Sustainable Modular Management, Inc. Top agencies USAF (Department of the Air Force)	$539,256	0.3%	Rank history: #40 in FY2021, #13 in FY2022, #27 in FY2023 and not on the FY2024 list; up 265 since FY2024.
44	Omni Hotels Management Corp Top agencies EXIM (Export Import Bank of the US) DHS (Department of Homeland Security)	$517,734	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
45	Stonelex C LLC Top agencies NTSB (National Transportation Safety Board)	$511,420	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
46	Rezek, Ronald Top agencies USDA (Department of Agriculture)	$504,158	0.2%	Rank history: not on the FY2021–FY2023 lists and #44 in FY2024; down 2 since FY2024.
47	International Rivercenter Lessee L.L.C. Top agencies DHS (Department of Homeland Security)	$496,875	0.2%	Rank history: not on the FY2021–FY2024 lists; up 56 since FY2024.
48	Creative It Solutions LLC Top agencies Navy (Department of the Navy)	$491,954	0.2%	Rank history: #21 in FY2021, #15 in FY2022, #18 in FY2023 and #4 in FY2024; down 44 since FY2024.
49	Namsi, LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$467,629	0.2%	Rank history: #47 in FY2021, #55 in FY2022, not on the FY2023 list and #55 in FY2024; up 6 since FY2024.
50	American Tower Corporation 8 awardees, including American Towers LLC, American Tower Asset Sub LLC and American Tower Management LLC Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DOI (Department of the Interior)	$458,146	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and #49 in FY2024; down 1 since FY2024.
51	Hunter Saak Investments, LLC Top agencies USAF (Department of the Air Force)	$422,447	0.2%	Rank history: #13 in FY2021, #17 in FY2022, #24 in FY2023 and #36 in FY2024; down 15 since FY2024.
52	GFP Kansas City Parking LLC Top agencies DOT (Department of Transportation)	$409,932	0.2%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2023 and #54 in FY2024; up 2 since FY2024.
53	Pinnacle Towers LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$409,061	0.2%	Rank history: not on the FY2021–FY2024 lists; up 205 since FY2024.
54	V2X, Inc. Through V2X Systems LLC Top agencies Navy (Department of the Navy)	$395,114	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
55	Blue Sky Innovators Inc. Top agencies USAF (Department of the Air Force)	$349,504	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
56	JEL Management LLC Top agencies Navy (Department of the Navy)	$333,995	0.2%	Rank history: #33 in FY2021, #31 in FY2022, #52 in FY2023 and #57 in FY2024; up 1 since FY2024.
57	Two Independence Hana OW, LLC Top agencies NASA (National Aeronautics and Space Administration)	$331,782	0.2%	Rank history: #36 in FY2021, #37 in FY2022, #25 in FY2023 and #14 in FY2024; down 43 since FY2024.
58	Blue Construction Services LLC Top agencies DHS (Department of Homeland Security)	$331,077	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
59	Memphis Management Group, LLC Top agencies VA (Department of Veterans Affairs)	$322,528	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
60	Columbine Telephone Company, Inc. Top agencies USDA (Department of Agriculture)	$312,695	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
61	Williams Scotsman Inc. Top agencies VA (Department of Veterans Affairs) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$308,093	0.1%	Rank history: not on the FY2021–FY2023 lists and #83 in FY2024; up 22 since FY2024.
62	Sabala Management LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$299,784	0.1%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; down 38 since FY2024.
63	Critical Contingency Solutions LLC Top agencies Army (Department of the Army)	$298,350	0.1%	Rank history: not on the FY2021–FY2023 lists and #81 in FY2024; up 18 since FY2024.
64	Folsom, LLC Top agencies USAF (Department of the Air Force)	$296,253	0.1%	Rank history: #63 in FY2021, #62 in FY2022, #70 in FY2023 and #52 in FY2024; down 12 since FY2024.
65	5615 Fishers Lane LLC Top agencies HHS (Department of Health and Human Services)	$294,997	0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #64 in FY2023 and #60 in FY2024; down 5 since FY2024.
66	Miraflores Development Corp. Top agencies Army (Department of the Army)	$283,942	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
67	College of Southern Maryland Top agencies Navy (Department of the Navy)	$267,420	0.1%	Rank history: #52 in FY2021, #52 in FY2022, #76 in FY2023 and #51 in FY2024; down 16 since FY2024.
68	Storm Services Engineering LLC Top agencies USDA (Department of Agriculture)	$263,748	0.1%	Rank history: not on the FY2021–FY2024 lists; up 33 since FY2024.
69	Reliant Asset Management LLC Top agencies USAF (Department of the Air Force)	$260,916	0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023 and #64 in FY2024; down 5 since FY2024.
70	Jaago Foundation Top agencies DOS (Department of State)	$248,373	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
71	Usbgf Sentinel Square Iii, LLC Top agencies FCC (Federal Communications Commission)	$243,616	0.1%	Rank history: not on the FY2021 list, #70 in FY2022, #67 in FY2023 and #61 in FY2024; down 10 since FY2024.
72	NGP V Parklawn MD LLC Top agencies HHS (Department of Health and Human Services)	$236,490	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
73	Rental Plus Co.,Ltd. Top agencies Navy (Department of the Navy)	$224,384	0.1%	Rank history: not on the FY2021 list, #63 in FY2022, #50 in FY2023 and #72 in FY2024; down 1 since FY2024.
74	Northwestern University Top agencies VA (Department of Veterans Affairs)	$214,995	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
75	DBM Inc. Top agencies DOE (Department of Energy)	$213,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; down 38 since FY2024.
76	Sharon Zambo-Fan & Associates, Inc. Top agencies Army (Department of the Army)	$209,025	0.1%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; down 20 since FY2024.
77	MTJ Development Sdn. Bhd. Top agencies Army (Department of the Army)	$195,734	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
78	Apollo 18 LLC Top agencies Smithsonian (Smithsonian Institution)	$193,312	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
79	W0Vc Usag FT Cavazos Top agencies Army (Department of the Army)	$186,478	0.1%	Rank history: #77 in FY2021, #75 in FY2022, #84 in FY2023 and #77 in FY2024; down 2 since FY2024.
80	Dou'a Al Kuwait EST Top agencies USAF (Department of the Air Force)	$180,167	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #53 in FY2023 and #75 in FY2024; down 5 since FY2024.
81	At&T Inc. Through Alascom, Inc. Top agencies USAF (Department of the Air Force)	$176,514	0.1%	Rank history: not on the FY2021–FY2024 lists; up 234 since FY2024.
82	EGP 660 El Paso LP Top agencies DOJ (Department of Justice)	$174,962	0.1%	Rank history: not on the FY2021–FY2024 lists; up 232 since FY2024.
83	Mapco Inc. Top agencies USAF (Department of the Air Force)	$172,536	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #80 in FY2024; down 3 since FY2024.
84	Liquidspace, Inc. Top agencies DOI (Department of the Interior) HUD (Department of Housing and Urban Development)	$172,349	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, not on the FY2023 list and #92 in FY2024; up 8 since FY2024.
85	Trade Center Management Associates L.L.C. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice)	$171,329	0.1%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023 and #84 in FY2024; down 1 since FY2024.
86	Leverage Enterprises Inc. Top agencies DHS (Department of Homeland Security)	$168,714	0.1%	Rank history: not on the FY2021–FY2023 lists and #69 in FY2024; down 17 since FY2024.
87	Rose Bud Plaza LLC Top agencies VA (Department of Veterans Affairs)	$166,800	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
88	Mountains Recreation & Conservation Authority Top agencies USDA (Department of Agriculture)	$162,960	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 45 since FY2024.
89	JA Media Group LLC Top agencies USDA (Department of Agriculture)	$161,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
90	Diversity Resources Group LLC Top agencies USAF (Department of the Air Force)	$159,482	0.1%	Rank history: #26 in FY2021, not on the FY2022 list, #51 in FY2023 and #62 in FY2024; down 28 since FY2024.
91	Wilson Broadcast Services, Inc. Top agencies DOJ (Department of Justice)	$156,151	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	US Union Square DC 999 LLC Top agencies DOJ (Department of Justice)	$146,506	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Virginia Community College System Office Top agencies Navy (Department of the Navy)	$144,740	0.1%	Rank history: not on the FY2021–FY2024 lists; up 298 since FY2024.
94	Tesfaye LLC Top agencies Army (Department of the Army)	$132,767	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
95	Edjj Solutions LLC Top agencies DHS (Department of Homeland Security)	$130,712	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; unchanged since FY2024.
96	310 Buncombe LLC Top agencies USDA (Department of Agriculture)	$129,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #96 in FY2024; unchanged since FY2024.
97	Adnec Services L.L.C. Top agencies USAF (Department of the Air Force)	$128,024	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
98	TCC Hotel Asset Management Company Limited Branch Top agencies Army (Department of the Army)	$125,402	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
99	Juliet Construction, LLC Top agencies VA (Department of Veterans Affairs)	$117,948	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Oregon Department of Forestry Top agencies Army (Department of the Army)	$116,679	0.1%	Rank history: not on the FY2021–FY2023 lists and #99 in FY2024; down 1 since FY2024.

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100 of 374 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 $207 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 NAICS 531120 contractors in FY2025?

1. Smithsonian Institution ($20.7M), 2. Ma-Chis International Services, Inc. ($8.36M), 3. Trizechahn Colony Square GP Limited Liability Company ($6.74M), 4. Hines GS Properties LLC ($5.61M), 5. Franklin Court Inc. ($5.28M), 6. Specialized Testing and Construction, Inc. ($3.76M), 7. Usgbf Nci, LLC ($3.76M), 8. 5600 Fishers Lane LLC ($3.29M), 9. Kwikspace Guam Inc. ($3.17M), 10. Koman Sustainable Solutions, LLC ($3.01M).

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