Top 100 National Gallery of Art Contractors, FY2024

Name: Top 100 National Gallery of Art Contractors, FY2024
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2023 – Sep 30, 2024 Agency page on GovTribe

The top 10 won 48% of FY2024 National Gallery of Art contract dollars

Contract obligations: $53,762,013 Net of deobligations, by the National Gallery of Art and its offices
Contractors: 283 Parent companies with an obligation
Largest contractor: United Security Agency, LLC $7.7 million, 14.0% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	United Security Agency, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$7,700,000	14.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
2	Quinn Evans Architects Inc. 2 awardees Top NAICS codes 541310 Architectural Services	$3,436,768	6.3%	Rank history: #63 in FY2021, #21 in FY2022, #16 in FY2023 and #4 in FY2025; up 14 since FY2023.
3	Nichols Contracting Inc. Top NAICS codes 333921 Elevator and Moving Stairway Manufacturing	$2,924,934	5.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
4	Dell Technologies Inc. Through Dell Federal Systems L.P Top NAICS codes 334111 Electronic Computer Manufacturing 511210 Software Publishers	$2,454,234	4.5%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
5	Intellipoint Consulting Inc. Top NAICS codes 541618 Other Management Consulting Services	$2,191,597	4.0%	Rank history: #9 in FY2021, #29 in FY2022, #8 in FY2023 and #7 in FY2025; up 3 since FY2023.
6	The Whiting-Turner Contracting Company Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,857,215	3.4%	Rank history: not on the FY2021 list, #1 in FY2022, #19 in FY2023 and #2 in FY2025; up 13 since FY2023.
7	Grunley Construction Co., Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,588,830	2.9%	Rank history: #1 in FY2021, #5 in FY2022, #10 in FY2023 and not on the FY2025 list; up 3 since FY2023.
8	Belcan Government Solutions, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$1,508,295	2.8%	Rank history: #6 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
9	AES Electrical, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$1,428,414	2.6%	Rank history: #24 in FY2021, #3 in FY2022, #2 in FY2023 and #12 in FY2025; down 7 since FY2023.
10	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$1,088,136	2.0%	Rank history: not on the FY2021 list, #15 in FY2022, #13 in FY2023 and #15 in FY2025; up 3 since FY2023.
11	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 513210 Software Publishers 541618 Other Management Consulting Services	$1,040,093	1.9%	Rank history: #15 in FY2021, #10 in FY2022, #15 in FY2023 and #10 in FY2025; up 4 since FY2023.
12	JM Zell Partners, Ltd. Top NAICS codes 531390 Other Activities Related to Real Estate	$1,000,000	1.8%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
13	Beyer Blinder Belle Architects & Planners LLP Top NAICS codes 541310 Architectural Services	$986,096	1.8%	Rank history: #3 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
14	Alaska Native Government Services LLC Through Copper River Information Technology, LLC Top NAICS codes 541519 Other Computer Related Services	$962,477	1.8%	Rank history: not on the FY2021 list, #6 in FY2022, #69 in FY2023 and not on the FY2025 list; up 55 since FY2023.
15	Elcon Enterprises Inc. Top NAICS codes 238290 Other Building Equipment Contractors 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance	$946,260	1.7%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #6 in FY2025; down 3 since FY2023.
16	DLT Solutions, LLC 2 awardees Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 513210 Software Publishers	$822,007	1.5%	Rank history: #50 in FY2021, not on the FY2022 list, #11 in FY2023 and not on the FY2025 list; down 5 since FY2023.
17	Mccoy Associates Inc. Top NAICS codes 335132 Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers	$773,887	1.4%	Rank history: not on the FY2021 list, #65 in FY2022, not on the FY2023 list and #38 in FY2025; returned.
18	Belcan Corporation Through Belcan Government Solutions, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$640,350	1.2%	Rank history: #4 in FY2021, #4 in FY2022, #6 in FY2023 and not on the FY2025 list; down 12 since FY2023.
19	Service Mechanical Inc. Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance 238220 Plumbing, Heating, and Air-Conditioning Contractors	$539,367	1.0%	Rank history: #8 in FY2021, #19 in FY2022, #17 in FY2023 and #13 in FY2025; down 2 since FY2023.
20	Avyance LLC 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$490,430	0.9%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #23 in FY2025; up 25 since FY2023.
21	FCN, Inc. Top NAICS codes 541519 Other Computer Related Services 511210 Software Publishers	$472,197	0.9%	Rank history: #40 in FY2021, #28 in FY2022, not on the FY2023 list and #48 in FY2025; returned.
22	Abba Technologies, Inc. Top NAICS codes 334111 Electronic Computer Manufacturing	$450,163	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Mythics Inc. Through Emergent, LLC Top NAICS codes 511210 Software Publishers 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541519 Other Computer Related Services	$434,398	0.8%	Rank history: not on the FY2021–FY2023 lists and #16 in FY2025; new.
24	Applied Wayfinding Inc. Top NAICS codes 541618 Other Management Consulting Services	$413,610	0.8%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #66 in FY2025; up 14 since FY2023.
25	Gartner, Inc. Top NAICS codes 513210 Software Publishers	$406,149	0.7%	Rank history: #36 in FY2021, #18 in FY2022, #42 in FY2023 and #26 in FY2025; up 17 since FY2023.
26	Verizon 2 awardees, including Cellco Partnership and Verizon Business Network Services LLC Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite) 517110 Wired Telecommunications Carriers	$404,110	0.7%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; new.
27	Robert Half International Inc. Through Protiviti Inc. Top NAICS codes 312111 Soft Drink Manufacturing	$398,627	0.7%	Rank history: not on the FY2021–FY2023 lists and #92 in FY2025; up 97 since FY2023.
28	CDW Government LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$338,517	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
29	Canon Inc. Through Canon U.s.a., Inc. Top NAICS codes 333316 Photographic and Photocopying Equipment Manufacturing	$334,526	0.6%	Rank history: #33 in FY2021, #61 in FY2022, #22 in FY2023 and not on the FY2025 list; down 7 since FY2023.
30	System One Holdings, LLC Through Alta It Services, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$326,726	0.6%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023 and not on the FY2025 list; down 3 since FY2023.
31	MAK Technologies Inc. Through Trustwave Government Solutions, LLC Top NAICS codes 928110 National Security	$308,826	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
32	JE Richards Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$290,656	0.5%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2025; new.
33	Davis Memorial Goodwill Industries Inc Top NAICS codes 712110 Museums	$287,635	0.5%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2025; up 77 since FY2023.
34	Concur Technologies Inc. Top NAICS codes 481111 Scheduled Passenger Air Transportation	$282,068	0.5%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2025; new.
35	Potomac Electrical Services, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$270,274	0.5%	Rank history: #55 in FY2021, not on the FY2022 list, #44 in FY2023 and #54 in FY2025; up 9 since FY2023.
36	Thimble Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$269,185	0.5%	Rank history: #13 in FY2021, not on the FY2022 list, #32 in FY2023 and #21 in FY2025; down 4 since FY2023.
37	Equinix LLC 2 awardees Top NAICS codes 541519 Other Computer Related Services	$266,941	0.5%	Rank history: #76 in FY2021, #38 in FY2022, #31 in FY2023 and #33 in FY2025; down 6 since FY2023.
38	Altec Inc. Top NAICS codes 333921 Elevator and Moving Stairway Manufacturing	$254,240	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
39	Cross Henry Top NAICS codes 561499 All Other Business Support Services 238990 All Other Specialty Trade Contractors	$253,240	0.5%	Rank history: #77 in FY2021, #30 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
40	Seibold Security Inc. Top NAICS codes 541330 Engineering Services	$253,196	0.5%	Rank history: #19 in FY2021, #17 in FY2022, #36 in FY2023 and #27 in FY2025; down 4 since FY2023.
41	Phalcon Ltd. Through JE Richards Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$248,250	0.5%	Rank history: #10 in FY2021, #23 in FY2022, #50 in FY2023 and not on the FY2025 list; up 9 since FY2023.
42	David Joseph Easterbrook Ltd Top NAICS codes 333922 Conveyor and Conveying Equipment Manufacturing	$243,865	0.4%	Rank history: #80 in FY2021, #41 in FY2022, not on the FY2023 list and not on the FY2025 list; up 71 since FY2023.
43	Distributed Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$239,077	0.4%	Rank history: #41 in FY2021, #62 in FY2022, #70 in FY2023 and #70 in FY2025; up 27 since FY2023.
44	SHI International Corp. Top NAICS codes 334111 Electronic Computer Manufacturing	$230,796	0.4%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and #44 in FY2025; down 10 since FY2023.
45	Collage Group, LLC Top NAICS codes 541910 Marketing Research and Public Opinion Polling	$222,500	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
46	Innovation Group, LLC Top NAICS codes 541612 Human Resources Consulting Services	$221,950	0.4%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and not on the FY2025 list; up 13 since FY2023.
47	Gill Group Inc. Top NAICS codes 333318 Other Commercial and Service Industry Machinery Manufacturing	$218,115	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 156 since FY2023.
48	Kpmg LLP Top NAICS codes 541211 Offices of Certified Public Accountants	$210,000	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Tixtrack Inc Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$205,900	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Alers Consulting LLC Top NAICS codes 541511 Custom Computer Programming Services 513210 Software Publishers	$203,694	0.4%	Rank history: not on the FY2021 list, #94 in FY2022, #51 in FY2023 and #73 in FY2025; up 1 since FY2023.
51	Bluecadet LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$200,000	0.4%	Rank history: not on the FY2021 list, #12 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
52	Morin Distribution, Inc. Top NAICS codes 332410 Power Boiler and Heat Exchanger Manufacturing	$198,247	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
53	Hartman-Cox Architects LLP Top NAICS codes 541310 Architectural Services	$194,347	0.4%	Rank history: #2 in FY2021, #8 in FY2022, #21 in FY2023 and #72 in FY2025; down 32 since FY2023.
54	Govconnection Inc. Top NAICS codes 541519 Other Computer Related Services	$178,724	0.3%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2025; new.
55	Rojani Facilities Management, LLC Top NAICS codes 561720 Janitorial Services	$170,755	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #51 in FY2025; down 2 since FY2023.
56	The Gordian Group, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$163,543	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
57	Hire One Personnel Services of Washington, D.c. LLC Top NAICS codes 561320 Temporary Help Services	$162,738	0.3%	Rank history: #32 in FY2021, #55 in FY2022, #55 in FY2023 and #81 in FY2025; down 2 since FY2023.
58	Walston Co Group LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$159,680	0.3%	Rank history: not on the FY2021 list, #35 in FY2022, #41 in FY2023 and not on the FY2025 list; down 17 since FY2023.
59	Verizon Communications Inc. 4 awardees, including Verizon Federal Inc. Top NAICS codes 517919 All Other Telecommunications 517121 Telecommunications Resellers	$156,601	0.3%	Rank history: #11 in FY2021, #16 in FY2022, #18 in FY2023 and not on the FY2025 list; down 41 since FY2023.
60	Colleague Consulting, LLC Top NAICS codes 611430 Professional and Management Development Training	$151,113	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 78 since FY2023.
61	Robinson Iron Corp Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$150,810	0.3%	Rank history: not on the FY2021 list, #36 in FY2022, #58 in FY2023 and #32 in FY2025; down 3 since FY2023.
62	Capitol Iron Works, LLC Top NAICS codes 331315 Aluminum Sheet, Plate, and Foil Manufacturing	$150,000	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
63	Smoot Construction LLC Through Associated Builders, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$149,500	0.3%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2025; new.
64	Securityhunter, Inc. Top NAICS codes 541330 Engineering Services	$148,330	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
65	Ameresco Federal Solutions, Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$143,924	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
66	Proquest LLC Through Ex Libris USA Inc. Top NAICS codes 511210 Software Publishers	$141,008	0.3%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2025; new.
67	Netxposure LLC Top NAICS codes 541511 Custom Computer Programming Services	$139,358	0.3%	Rank history: #65 in FY2021, #37 in FY2022, #73 in FY2023 and #75 in FY2025; up 6 since FY2023.
68	Key App Resources LLC Top NAICS codes 541511 Custom Computer Programming Services	$129,800	0.2%	Rank history: #93 in FY2021, #43 in FY2022, #67 in FY2023 and not on the FY2025 list; down 1 since FY2023.
69	Siemens Industry Inc. Top NAICS codes 922160 Fire Protection	$126,676	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
70	WSP USA Environment & Infrastructure Inc. Top NAICS codes 541620 Environmental Consulting Services	$124,954	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
71	American Pest Management Inc. Top NAICS codes 561710 Exterminating and Pest Control Services	$124,624	0.2%	Rank history: #52 in FY2021, #52 in FY2022, #54 in FY2023 and #65 in FY2025; down 17 since FY2023.
72	Evolv Technologies Inc Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$124,500	0.2%	Rank history: not on the FY2021–FY2023 lists and #62 in FY2025; new.
73	Williams Audio Event LLC Top NAICS codes 541512 Computer Systems Design Services	$123,360	0.2%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023 and #67 in FY2025; down 9 since FY2023.
74	Commercial Office Furniture Company Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing	$122,402	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2025 list; up 12 since FY2023.
75	Redhawk It Solutions, LLC Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$118,612	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Fill Holdings LLC Top NAICS codes 812320 Drycleaning and Laundry Services (except Coin-Operated)	$118,550	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 40 since FY2023.
77	PCG Enterprises Inc. Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$118,460	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	O'brien Business Systems, Inc. Top NAICS codes 561440 Collection Agencies 423420 Office Equipment Merchant Wholesalers	$117,444	0.2%	Rank history: #70 in FY2021, #42 in FY2022, #3 in FY2023 and #39 in FY2025; down 75 since FY2023.
79	Gallery Systems Inc. Top NAICS codes 541219 Other Accounting Services	$110,050	0.2%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2025; new.
80	Alvarez LLC Top NAICS codes 541519 Other Computer Related Services	$108,798	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #75 in FY2023 and #47 in FY2025; down 5 since FY2023.
81	Tennessee Marble Company Top NAICS codes 327991 Cut Stone and Stone Product Manufacturing	$106,242	0.2%	Rank history: not on the FY2021–FY2023 lists and #22 in FY2025; new.
82	Teknion LLC Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing	$105,543	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
83	E. John Schmitz & Sons, Inc. Top NAICS codes 323120 Support Activities for Printing 323111 Commercial Printing (except Screen and Books)	$105,365	0.2%	Rank history: not on the FY2021 list, #83 in FY2022, #95 in FY2023 and not on the FY2025 list; up 12 since FY2023.
84	Arrow Electronics, Inc. Through EC America, Inc. Top NAICS codes 443120 Computer and Software Stores	$105,268	0.2%	Rank history: #57 in FY2021, not on the FY2022 list, #96 in FY2023 and not on the FY2025 list; up 12 since FY2023.
85	Colossal Contracting LLC Top NAICS codes 541519 Other Computer Related Services	$104,537	0.2%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023 and #14 in FY2025; down 39 since FY2023.
86	Henkels & Mccoy Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$101,250	0.2%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; up 121 since FY2023.
87	CTG Federal, LLC Top NAICS codes 541519 Other Computer Related Services	$100,568	0.2%	Rank history: #62 in FY2021, #77 in FY2022, #65 in FY2023 and #46 in FY2025; down 22 since FY2023.
88	Science Applications International Corporation Top NAICS codes 541512 Computer Systems Design Services	$100,473	0.2%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and not on the FY2025 list; down 49 since FY2023.
89	Praxtion Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$98,549	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Countertrade Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$96,404	0.2%	Rank history: not on the FY2021–FY2023 lists and #68 in FY2025; up 104 since FY2023.
91	Johnson Controls Inc Top NAICS codes 561210 Facilities Support Services	$95,864	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	Resnicow & Associates Inc. Top NAICS codes 541618 Other Management Consulting Services	$95,000	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Cellco Partnership Top NAICS codes 517312 Wireless Telecommunications Carriers (except Satellite)	$93,632	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
94	Turf Equipment and Supply Company, Inc. Top NAICS codes 221310 Water Supply and Irrigation Systems	$92,639	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	Digital Microscope Associate LLC Top NAICS codes 333314 Optical Instrument and Lens Manufacturing	$90,570	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
96	W.e. Bowers, Inc. Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$89,147	0.2%	Rank history: #60 in FY2021, #33 in FY2022, #20 in FY2023 and not on the FY2025 list; down 76 since FY2023.
97	Danco Incorporated Top NAICS codes 238330 Flooring Contractors	$88,472	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023 and not on the FY2025 list; down 10 since FY2023.
98	Dexibit Inc. Top NAICS codes 511210 Software Publishers	$87,400	0.2%	Rank history: #74 in FY2021, #82 in FY2022, #91 in FY2023 and not on the FY2025 list; down 7 since FY2023.
99	Potomac Services Management Inc. Top NAICS codes 561210 Facilities Support Services	$84,630	0.2%	Rank history: not on the FY2021–FY2023 lists and #90 in FY2025; new.
100	Dell Federal Systems L.P. Top NAICS codes 511210 Software Publishers	$84,275	0.2%	Rank history: #25 in FY2021, #22 in FY2022, #7 in FY2023 and not on the FY2025 list; down 93 since FY2023.

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100 of 283 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 $54.8 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 2024 ran Oct 1, 2023 – Sep 30, 2024. 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 FY2023. "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 FY2023 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 National Gallery of Art contractors in FY2024?

1. United Security Agency, LLC ($7.7M), 2. Quinn Evans Architects Inc. ($3.44M), 3. Nichols Contracting Inc. ($2.92M), 4. Dell Technologies Inc. ($2.45M), 5. Intellipoint Consulting Inc. ($2.19M), 6. The Whiting-Turner Contracting Company ($1.86M), 7. Grunley Construction Co., Inc. ($1.59M), 8. Belcan Government Solutions, Inc. ($1.51M), 9. AES Electrical, LLC ($1.43M), 10. Four Points Technology, L.L.C. ($1.09M).

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