Top 100 Contractors in NAICS 531: Real Estate, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Information Systems & Networks Corporation Top agencies USDA (Department of Agriculture) Navy (Department of the Navy)	$77,447,761	10.5%	Rank history: not on the FY2021 list, #27 in FY2022, #3 in FY2024 and #2 in FY2025; up 26 since FY2022.
2	Dawson's Realty & Mortgages, Inc. Top agencies USDA (Department of Agriculture)	$71,712,996	9.8%	Rank history: #3 in FY2021, #17 in FY2022, #2 in FY2024 and #4 in FY2025; up 15 since FY2022.
3	Koman Sustainable Solutions, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$29,425,444	4.0%	Rank history: not on the FY2021 list, #34 in FY2022, #48 in FY2024 and #37 in FY2025; up 31 since FY2022.
4	Trade Center Management Associates L.L.C. Top agencies GSA (General Services Administration) DHS (Department of Homeland Security) USAID (US Agency for International Development)	$27,684,195	3.8%	Rank history: #5 in FY2021, #5 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
5	Leumas Residential LLC Top agencies HUD (Department of Housing and Urban Development)	$22,746,240	3.1%	Rank history: not on the FY2021 list, #38 in FY2022, #9 in FY2024 and #9 in FY2025; up 33 since FY2022.
6	Vendor Resource Management, Inc. Top agencies VA (Department of Veterans Affairs)	$21,946,026	3.0%	Rank history: not on the FY2021 list, #30 in FY2022, #26 in FY2024 and #5 in FY2025; up 24 since FY2022.
7	Lima Charlie, Inc. Top agencies DHS (Department of Homeland Security)	$19,772,745	2.7%	Rank history: #91 in FY2021, #25 in FY2022, #1 in FY2024 and #1 in FY2025; up 18 since FY2022.
8	Government of the United States 3 awardees, including Smithsonian Institution, Commander and Navy Region Mid Atlantic Top agencies Smithsonian (Smithsonian Institution) Navy (Department of the Navy)	$18,249,732	2.5%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and not on the FY2025 list; up 450 since FY2022.
9	TC Pennsy Drive LLC Top agencies Smithsonian (Smithsonian Institution)	$17,913,894	2.4%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2024 and not on the FY2025 list; up 408 since FY2022.
10	N.s.p. Ventures Corp. 2 awardees Top agencies Treasury (Department of the Treasury)	$16,199,311	2.2%	Rank history: #6 in FY2021, #9 in FY2022, #13 in FY2024 and #8 in FY2025; down 1 since FY2022.
11	Concourse Federal Group LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$15,412,125	2.1%	Rank history: #8 in FY2021, #11 in FY2022, #18 in FY2024 and #24 in FY2025; unchanged since FY2022.
12	Active Deployment Systems, LLC Top agencies DHS (Department of Homeland Security)	$15,001,597	2.0%	Rank history: #25 in FY2021, #24 in FY2022, #25 in FY2024 and not on the FY2025 list; up 12 since FY2022.
13	Aboda Inc. Top agencies Navy (Department of the Navy)	$13,988,631	1.9%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
14	BGRS Relocation Inc. Top agencies Treasury (Department of the Treasury) VA (Department of Veterans Affairs) DOE (Department of Energy)	$13,507,609	1.8%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2024–FY2025 lists; up 32 since FY2022.
15	DMC Management Services, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$13,249,807	1.8%	Rank history: #10 in FY2021, #12 in FY2022, #17 in FY2024 and #13 in FY2025; down 3 since FY2022.
16	Franconia Real Estate Services Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$12,222,911	1.7%	Rank history: #11 in FY2021, #10 in FY2022, #11 in FY2024 and #6 in FY2025; down 6 since FY2022.
17	Ma-Chis International Services, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$8,411,059	1.1%	Rank history: #21 in FY2021, #14 in FY2022, #16 in FY2024 and #15 in FY2025; down 3 since FY2022.
18	Trizechahn Colony Square GP Limited Liability Company Top agencies Smithsonian (Smithsonian Institution)	$8,133,469	1.1%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #19 in FY2025; new.
19	Franklin Court Inc. Top agencies MCC (Millennium Challenge Corporation)	$7,982,312	1.1%	Rank history: #15 in FY2021, #21 in FY2022, not on the FY2024 list and #23 in FY2025; up 2 since FY2022.
20	Tbp&Jj Worldwide Services, LLC Top agencies NASA (National Aeronautics and Space Administration)	$5,978,414	0.8%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2024 and #18 in FY2025; new.
21	Madison Hospitality Services, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Commerce (Department of Commerce)	$5,536,569	0.8%	Rank history: #56 in FY2021, #72 in FY2022, #29 in FY2024 and #20 in FY2025; up 51 since FY2022.
22	Stratton Securities Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$5,286,296	0.7%	Rank history: not on the FY2021 list, #29 in FY2022 and not on the FY2024–FY2025 lists; up 7 since FY2022.
23	Union Station Venture, Ltd. 2 awardees, including Jones Lang Lasalle Americas, Inc. and JLL Valuation & Advisory Services, LLC Top agencies DOS (Department of State) Treasury (Department of the Treasury) GSA (General Services Administration)	$4,702,165	0.6%	Rank history: #51 in FY2021, #35 in FY2022, #44 in FY2024 and not on the FY2025 list; up 12 since FY2022.
24	K. Teya Moore & Associates PA Top agencies USDA (Department of Agriculture) DOJ (Department of Justice)	$4,553,584	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
25	Parliament LLC Top agencies DHS (Department of Homeland Security)	$4,112,562	0.6%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #3 in FY2025; new.
26	Raine & Company, LLC Top agencies HUD (Department of Housing and Urban Development)	$4,070,058	0.6%	Rank history: #4 in FY2021, #7 in FY2022, #6 in FY2024 and not on the FY2025 list; down 19 since FY2022.
27	5600 Fishers Lane LLC Top agencies HHS (Department of Health and Human Services)	$4,040,431	0.5%	Rank history: #28 in FY2021, #31 in FY2022, #28 in FY2024 and #32 in FY2025; up 4 since FY2022.
28	Environmental Chemical Corporation Top agencies Navy (Department of the Navy)	$3,847,101	0.5%	Rank history: #29 in FY2021, #28 in FY2022, #32 in FY2024 and #38 in FY2025; unchanged since FY2022.
29	Jade At Olde Naples I LLC Top agencies DHS (Department of Homeland Security)	$3,790,563	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Naples 1400 LLC Top agencies DHS (Department of Homeland Security)	$3,747,549	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
31	Usgbf Nci, LLC Top agencies HHS (Department of Health and Human Services)	$3,542,400	0.5%	Rank history: #31 in FY2021, #37 in FY2022, #30 in FY2024 and #30 in FY2025; up 6 since FY2022.
32	Oregon Premier Locations, LLC Top agencies USAF (Department of the Air Force) DARPA (Defense Advanced Research Projects Agency) DOS (Department of State)	$3,382,818	0.5%	Rank history: #44 in FY2021, #39 in FY2022, #33 in FY2024 and #46 in FY2025; up 7 since FY2022.
33	Lres Holdings, LLC Top agencies USDA (Department of Agriculture)	$3,155,900	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
34	Heartland Energy Partners LLC Top agencies USDA (Department of Agriculture)	$3,155,900	0.4%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and #35 in FY2025; new.
35	Empire Hospitality LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce) USAF (Department of the Air Force)	$2,904,577	0.4%	Rank history: #19 in FY2021, #13 in FY2022, #79 in FY2024 and not on the FY2025 list; down 22 since FY2022.
36	KM Minemier & Associates, LLC Top agencies HUD (Department of Housing and Urban Development)	$2,854,302	0.4%	Rank history: #18 in FY2021, #23 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
37	Sellers Realty, LLC Top agencies Treasury (Department of the Treasury)	$2,735,425	0.4%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2024 and #66 in FY2025; up 87 since FY2022.
38	Keres Consulting Inc. Top agencies OSD (Office of the Secretary of Defense) GSA (General Services Administration)	$2,676,767	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
39	Oxford Vista LLC Top agencies CNCS (Corporation for National and Community Service)	$2,414,663	0.3%	Rank history: #37 in FY2021, #45 in FY2022, #41 in FY2024 and #28 in FY2025; up 6 since FY2022.
40	Dominion Federal Corporation Top agencies USAF (Department of the Air Force)	$2,341,966	0.3%	Rank history: #61 in FY2021, #51 in FY2022, #52 in FY2024 and #49 in FY2025; up 11 since FY2022.
41	Miami Nation Enterpeises Through Miami Wiipica, LLC Top agencies USAF (Department of the Air Force)	$2,285,400	0.3%	Rank history: #84 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
42	Kwikspace Guam Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHS (Department of Homeland Security)	$2,268,757	0.3%	Rank history: #71 in FY2021, #99 in FY2022, #37 in FY2024 and #33 in FY2025; up 57 since FY2022.
43	AAA Mobile Basecamp, LLC Top agencies USDA (Department of Agriculture)	$2,256,916	0.3%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2024 and not on the FY2025 list; new.
44	BBG Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOI (Department of the Interior)	$2,249,217	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 162 since FY2022.
45	Mcclellan Business Park LLC Top agencies CNCS (Corporation for National and Community Service)	$2,174,432	0.3%	Rank history: #40 in FY2021, #57 in FY2022, #39 in FY2024 and #43 in FY2025; up 12 since FY2022.
46	City of Vinton Top agencies CNCS (Corporation for National and Community Service)	$2,068,692	0.3%	Rank history: #60 in FY2021, #67 in FY2022, #49 in FY2024 and #50 in FY2025; up 21 since FY2022.
47	2025 E Street Office Leasehold Condominium Unit Owners Association, Inc. Top agencies DOS (Department of State) GSA (General Services Administration)	$2,053,281	0.3%	Rank history: #46 in FY2021, #48 in FY2022, #42 in FY2024 and #36 in FY2025; up 1 since FY2022.
48	Mosswood Property Development LLC Top agencies DHS (Department of Homeland Security)	$2,005,390	0.3%	Rank history: #13 in FY2021, #18 in FY2022 and not on the FY2024–FY2025 lists; down 30 since FY2022.
49	Reasor Building Group LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,991,317	0.3%	Rank history: #43 in FY2021, #36 in FY2022, #38 in FY2024 and #61 in FY2025; down 13 since FY2022.
50	Integrated Modular Solutions LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$1,961,841	0.3%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and #59 in FY2025; new.
51	All Saints Episcopal School Top agencies CNCS (Corporation for National and Community Service)	$1,945,694	0.3%	Rank history: #42 in FY2021, #66 in FY2022, #56 in FY2024 and #51 in FY2025; up 15 since FY2022.
52	Swan Contracting LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,784,288	0.2%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #48 in FY2025; new.
53	Innotion Enterprises, Inc. Top agencies HUD (Department of Housing and Urban Development)	$1,749,427	0.2%	Rank history: not on the FY2021 list, #33 in FY2022 and not on the FY2024–FY2025 lists; down 20 since FY2022.
54	Creative It Solutions LLC Top agencies Navy (Department of the Navy)	$1,683,109	0.2%	Rank history: #47 in FY2021, #47 in FY2022, #24 in FY2024 and not on the FY2025 list; down 7 since FY2022.
55	FD Stonewater, LLC Top agencies Commerce (Department of Commerce)	$1,552,225	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, #46 in FY2024 and not on the FY2025 list; up 32 since FY2022.
56	Vesta Housing Solutions, LLC Top agencies Army (Department of the Army)	$1,530,816	0.2%	Rank history: not on the FY2021 list, #62 in FY2022, #58 in FY2024 and #54 in FY2025; up 6 since FY2022.
57	Alpine Companies, Inc. Top agencies HUD (Department of Housing and Urban Development)	$1,434,915	0.2%	Rank history: #16 in FY2021, #41 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
58	Aesthetic Home Investments LLC Top agencies DHS (Department of Homeland Security)	$1,399,628	0.2%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2024 and #10 in FY2025; new.
59	The Partimage Group LLC 2 awardees Top agencies DHS (Department of Homeland Security)	$1,295,388	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #89 in FY2025; up 68 since FY2022.
60	Pemco, Limited Top agencies HUD (Department of Housing and Urban Development)	$1,285,136	0.2%	Rank history: #14 in FY2021, #97 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
61	RXR SL Reit LLC Top agencies GSA (General Services Administration)	$1,266,068	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Auburn University Top agencies USDA (Department of Agriculture)	$1,228,224	0.2%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2024 and not on the FY2025 list; up 133 since FY2022.
63	A C Blount Concrete Service Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,225,974	0.2%	Rank history: #57 in FY2021, #93 in FY2022, #89 in FY2024 and #92 in FY2025; up 30 since FY2022.
64	Property & Environmental Management Inc. Top agencies Army (Department of the Army)	$1,187,068	0.2%	Rank history: #62 in FY2021, #82 in FY2022, #64 in FY2024 and #67 in FY2025; up 18 since FY2022.
65	Modular Concepts, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,177,356	0.2%	Rank history: #49 in FY2021, #59 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
66	J K Moving & Storage, Inc. Through Capital Relocation Services L.L.C. Top agencies EPA (Environmental Protection Agency) USDA (Department of Agriculture)	$1,177,238	0.2%	Rank history: #85 in FY2021, #63 in FY2022, #53 in FY2024 and not on the FY2025 list; down 3 since FY2022.
67	Mcgrath Rentcorp Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) USDA (Department of Agriculture)	$1,157,181	0.2%	Rank history: #26 in FY2021, #78 in FY2022, #66 in FY2024 and #99 in FY2025; up 11 since FY2022.
68	Barber and Mann Inc. Top agencies Treasury (Department of the Treasury)	$1,145,261	0.2%	Rank history: not on the FY2021 list, #95 in FY2022, not on the FY2024 list and #58 in FY2025; up 27 since FY2022.
69	Markon LLC Top agencies Navy (Department of the Navy)	$1,113,048	0.2%	Rank history: #50 in FY2021, #64 in FY2022, #51 in FY2024 and #72 in FY2025; down 5 since FY2022.
70	Hunter Saak Investments, LLC Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$1,090,226	0.1%	Rank history: #30 in FY2021, #50 in FY2022, #84 in FY2024 and not on the FY2025 list; down 20 since FY2022.
71	Iris Development LLC Top agencies DHS (Department of Homeland Security)	$1,047,646	0.1%	Rank history: not on the FY2021 list, #55 in FY2022, #99 in FY2024 and not on the FY2025 list; down 16 since FY2022.
72	Real Estate Valuation Advisors LLC Top agencies Treasury (Department of the Treasury)	$1,043,291	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 142 since FY2022.
73	Ethic Tech, LLC Top agencies Army (Department of the Army)	$1,021,892	0.1%	Rank history: #69 in FY2021, #71 in FY2022, #62 in FY2024 and #94 in FY2025; down 2 since FY2022.
74	Togiak Management Services, LLC Top agencies Treasury (Department of the Treasury)	$1,007,600	0.1%	Rank history: #68 in FY2021, #79 in FY2022 and not on the FY2024–FY2025 lists; up 5 since FY2022.
75	Two Independence Hana OW, LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,007,341	0.1%	Rank history: #88 in FY2021, #91 in FY2022, #45 in FY2024 and not on the FY2025 list; up 16 since FY2022.
76	Newimar Sociedad Anonima Top agencies Navy (Department of the Navy)	$998,099	0.1%	Rank history: #53 in FY2021, #54 in FY2022, #70 in FY2024 and #69 in FY2025; down 22 since FY2022.
77	1 -800-Agentmatch.com, LLC Top agencies DHS (Department of Homeland Security)	$994,555	0.1%	Rank history: #96 in FY2021, #69 in FY2022, #100 in FY2024 and not on the FY2025 list; down 8 since FY2022.
78	Sustainable Modular Management, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) Army (Department of the Army)	$993,092	0.1%	Rank history: #93 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 36 since FY2022.
79	Washington State Convention Center Public Facilities District Top agencies DOS (Department of State)	$972,384	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	Arabian Homes Co. Ltd. Top agencies Army (Department of the Army)	$946,935	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 149 since FY2022.
81	ZAC Ryan Appraisal Services Inc Top agencies Treasury (Department of the Treasury)	$905,499	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Aurora Convention Center Hotel Lessee, LLC Top agencies VA (Department of Veterans Affairs)	$886,424	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
83	Champions Collective, LLC Top agencies DHA (Defense Health Agency)	$885,528	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Natives of Kodiak, Incorporated Through Koman Construction, LLC Top agencies USAF (Department of the Air Force)	$884,551	0.1%	Rank history: not on the FY2021 list, #61 in FY2022 and not on the FY2024–FY2025 lists; down 23 since FY2022.
85	Structured Facilities JV LLC Top agencies USAF (Department of the Air Force)	$883,378	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, #76 in FY2024 and #77 in FY2025; down 2 since FY2022.
86	The Atchison Group, Inc. Top agencies DOJ (Department of Justice)	$852,317	0.1%	Rank history: not on the FY2021 list, #77 in FY2022, #95 in FY2024 and not on the FY2025 list; down 9 since FY2022.
87	The Gilchrist Law Firm, P.a. Top agencies HUD (Department of Housing and Urban Development)	$828,029	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and #100 in FY2025; new.
88	Usgbf NSF LLC Top agencies NSF (National Science Foundation)	$790,621	0.1%	Rank history: #73 in FY2021, #90 in FY2022, #71 in FY2024 and not on the FY2025 list; up 2 since FY2022.
89	Pacific Mobile Structures, Inc. 2 awardees, including Sustainable Modular Management, Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$777,761	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2024 and not on the FY2025 list; new.
90	Onex Corporation Through SMG Holdings LLC Top agencies DOS (Department of State)	$748,580	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 18 since FY2022.
91	Keystone Space Collaborative Top agencies USAF (Department of the Air Force)	$734,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	SES Electrical LLC Top agencies USAF (Department of the Air Force)	$707,569	0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
93	SKE Technical Services GMBH Through SKE SRL Top agencies USAF (Department of the Air Force)	$689,958	0.1%	Rank history: #89 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 40 since FY2022.
94	Trinity University Top agencies Army (Department of the Army)	$679,875	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #80 in FY2024 and #79 in FY2025; unchanged since FY2022.
95	Cushman & Wakefield Inc. 2 awardees Top agencies DOS (Department of State) Treasury (Department of the Treasury)	$678,400	0.1%	Rank history: #54 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 109 since FY2022.
96	Aktio Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$673,349	0.1%	Rank history: #33 in FY2021, #52 in FY2022, #47 in FY2024 and #42 in FY2025; down 44 since FY2022.
97	Clarendon Valuation Advisors, LLC Top agencies HUD (Department of Housing and Urban Development)	$661,758	0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #83 in FY2024 and not on the FY2025 list; up 5 since FY2022.
98	Black Knight Data & Analytics LLC Top agencies HUD (Department of Housing and Urban Development) Commerce (Department of Commerce) Treasury (Department of the Treasury)	$659,500	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 3 since FY2022.
99	Tankersley Michael Top agencies Treasury (Department of the Treasury)	$647,871	0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #63 in FY2025; up 50 since FY2022.
100	Guardian Centers of Georgia, LLC Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$639,413	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 20 since FY2022.

Rankings for the codes under NAICS 531

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 $735 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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