Top 100 Smithsonian Institution Contractors, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Universal Protection GP, LLC Through Universal Protection Service, Limited Partnership Top NAICS codes 561612 Security Guards and Patrol Services	$26,600,000	6.8%	Rank history: #4 in FY2021, #3 in FY2023, #21 in FY2024 and not on the FY2025 list; up 3 since FY2021.
2	Clark / Smoot / Consigli, A Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction 712110 Museums	$24,753,012	6.3%	Rank history: #1 in FY2021, #5 in FY2023, #12 in FY2024 and #4 in FY2025; down 1 since FY2021.
3	Associated Builders, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$20,732,990	5.3%	Rank history: #9 in FY2021, #2 in FY2023, #65 in FY2024 and not on the FY2025 list; up 6 since FY2021.
4	Exelon Corporation 3 awardees, including Potomac Electric Power Co, Constellation Newenergy Inc. and Baltimore Gas and Electric Company Top NAICS codes 221122 Electric Power Distribution 236220 Commercial and Institutional Building Construction	$15,447,846	4.0%	Rank history: #8 in FY2021, #7 in FY2023, #7 in FY2024 and not on the FY2025 list; up 4 since FY2021.
5	Amber Enterprises Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$13,960,000	3.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
6	Lend Lease Corporation Ltd Through Lendlease (Us) Construction Inc. Top NAICS codes 541310 Architectural Services 541330 Engineering Services	$11,138,087	2.8%	Rank history: #5 in FY2021, #9 in FY2023, #8 in FY2024 and not on the FY2025 list; down 1 since FY2021.
7	TEX / Am Construction Co., Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 237130 Power and Communication Line and Related Structures Construction	$11,128,868	2.8%	Rank history: #2 in FY2021, #11 in FY2023, #27 in FY2024 and #17 in FY2025; down 5 since FY2021.
8	Grunley Construction Co., Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$11,074,929	2.8%	Rank history: #3 in FY2021, #8 in FY2023, #2 in FY2024 and #6 in FY2025; down 5 since FY2021.
9	Biscayne Contractors, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$11,071,447	2.8%	Rank history: #10 in FY2021, #56 in FY2023, #16 in FY2024 and #7 in FY2025; up 1 since FY2021.
10	Clark Construction Group LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$10,000,000	2.6%	Rank history: not on the FY2021 list, #1 in FY2023, #1 in FY2024 and #30 in FY2025; new.
11	Ayers / Saint / Gross, Incorporated Top NAICS codes 541310 Architectural Services	$7,477,141	1.9%	Rank history: #11 in FY2021, #16 in FY2023, #28 in FY2024 and #71 in FY2025; unchanged since FY2021.
12	Mbp-Aecom, A Joint Venture Top NAICS codes 541310 Architectural Services	$7,442,312	1.9%	Rank history: not on the FY2021 list, not on the FY2023 list, #91 in FY2024 and not on the FY2025 list; up 141 since FY2021.
13	Ewing Cole Inc. Top NAICS codes 541310 Architectural Services	$7,286,169	1.9%	Rank history: #45 in FY2021, #13 in FY2023, #10 in FY2024 and #12 in FY2025; up 32 since FY2021.
14	Integrated Construction Enterprises Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$6,379,743	1.6%	Rank history: not on the FY2021 list, not on the FY2023 list, #81 in FY2024 and #33 in FY2025; new.
15	KEE Construction Services, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$6,328,963	1.6%	Rank history: #15 in FY2021, #47 in FY2023, #36 in FY2024 and #68 in FY2025; unchanged since FY2021.
16	Page-Loring LLC Top NAICS codes 541310 Architectural Services	$5,119,061	1.3%	Rank history: #6 in FY2021, #28 in FY2023, #38 in FY2024 and not on the FY2025 list; down 10 since FY2021.
17	B3 Enterprises LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$4,824,875	1.2%	Rank history: #24 in FY2021, #27 in FY2023, #53 in FY2024 and not on the FY2025 list; up 7 since FY2021.
18	Infostructures, Inc. Top NAICS codes 541513 Computer Facilities Management Services 519130 Internet Publishing and Broadcasting and Web Search Portals	$4,472,016	1.1%	Rank history: #22 in FY2021, #17 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
19	HSU Development, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,718,285	1.0%	Rank history: #23 in FY2021, #20 in FY2023, #63 in FY2024 and #52 in FY2025; up 4 since FY2021.
20	Knowcean Consulting Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$3,621,701	0.9%	Rank history: #12 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
21	Dell Federal Systems L.P. 3 awardees, including Dell Marketing L.P. Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers 334111 Electronic Computer Manufacturing	$3,607,272	0.9%	Rank history: #16 in FY2021, #31 in FY2023, #100 in FY2024 and not on the FY2025 list; down 5 since FY2021.
22	Heartwood Pacific, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,429,878	0.9%	Rank history: not on the FY2021 list, #83 in FY2023 and not on the FY2024–FY2025 lists; new.
23	CDW Corporation Through CDW Government LLC Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers 423410 Photographic Equipment and Supplies Merchant Wholesalers 334111 Electronic Computer Manufacturing	$3,242,110	0.8%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; up 76 since FY2021.
24	Belt Built Contracting, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,176,735	0.8%	Rank history: #19 in FY2021, #26 in FY2023, #60 in FY2024 and #85 in FY2025; down 5 since FY2021.
25	Technology Trends Group, LLC Top NAICS codes 541519 Other Computer Related Services 541618 Other Management Consulting Services	$3,167,047	0.8%	Rank history: #59 in FY2021, #38 in FY2023, #39 in FY2024 and #36 in FY2025; up 34 since FY2021.
26	Noresco LLC 2 awardees Top NAICS codes 236220 Commercial and Institutional Building Construction	$3,155,322	0.8%	Rank history: #20 in FY2021, not on the FY2023 list, #29 in FY2024 and #25 in FY2025; down 6 since FY2021.
27	Potomac Software Group, LLC Top NAICS codes 541512 Computer Systems Design Services	$3,058,723	0.8%	Rank history: not on the FY2021 list, #30 in FY2023, #31 in FY2024 and #28 in FY2025; up 78 since FY2021.
28	Architrave P.C. Top NAICS codes 541310 Architectural Services	$3,037,932	0.8%	Rank history: #36 in FY2021, #44 in FY2023, #50 in FY2024 and #80 in FY2025; up 8 since FY2021.
29	WGL Energy Services Inc. 2 awardees, including Washington Gas Light Company Top NAICS codes 221210 Natural Gas Distribution	$2,929,300	0.7%	Rank history: #25 in FY2021, #29 in FY2023, #35 in FY2024 and not on the FY2025 list; down 4 since FY2021.
30	Quotientsub LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals 541519 Other Computer Related Services	$2,850,920	0.7%	Rank history: #33 in FY2021, #33 in FY2023, #26 in FY2024 and #21 in FY2025; up 3 since FY2021.
31	Lighting Services, Inc. Top NAICS codes 712110 Museums 335129 Other Lighting Equipment Manufacturing	$2,812,376	0.7%	Rank history: #29 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
32	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. and Williams Electric Co Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths) 335313 Switchgear and Switchboard Apparatus Manufacturing 238210 Electrical Contractors and Other Wiring Installation Contractors	$2,386,132	0.6%	Rank history: not on the FY2021 list, #25 in FY2023, #66 in FY2024 and #27 in FY2025; up 112 since FY2021.
33	DJB Contracting Inc. Top NAICS codes 238160 Roofing Contractors	$2,304,581	0.6%	Rank history: #42 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2021.
34	Tilt Up Construction, Inc. Top NAICS codes 541310 Architectural Services	$2,219,424	0.6%	Rank history: #58 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2021.
35	Sierrita Mining & Ranching Company LP Top NAICS codes 236220 Commercial and Institutional Building Construction 237990 Other Heavy and Civil Engineering Construction	$2,102,991	0.5%	Rank history: #26 in FY2021, #64 in FY2023, not on the FY2024 list and #55 in FY2025; down 9 since FY2021.
36	Midtown Personnel Inc. Top NAICS codes 561320 Temporary Help Services 541611 Administrative Management and General Management Consulting Services 561110 Office Administrative Services	$1,911,945	0.5%	Rank history: not on the FY2021 list, #52 in FY2023, #71 in FY2024 and not on the FY2025 list; up 77 since FY2021.
37	Xclipse Inc. Top NAICS codes 541511 Custom Computer Programming Services	$1,823,298	0.5%	Rank history: not on the FY2021 list, #34 in FY2023, #45 in FY2024 and #38 in FY2025; new.
38	KEYCORP Through Key Government Finance, Inc. Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$1,638,082	0.4%	Rank history: #34 in FY2021, not on the FY2023 list, #54 in FY2024 and not on the FY2025 list; down 4 since FY2021.
39	JRA & Associates Contracting, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,621,287	0.4%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
40	Romana Prosperity Construction Corporation Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,619,480	0.4%	Rank history: not on the FY2021 list, #62 in FY2023, not on the FY2024 list and #50 in FY2025; new.
41	CLC Cabling Service, Inc. Top NAICS codes 541513 Computer Facilities Management Services	$1,539,718	0.4%	Rank history: #75 in FY2021, #65 in FY2023, #82 in FY2024 and #62 in FY2025; up 34 since FY2021.
42	Ko-Am Enterprises Inc. Top NAICS codes 238330 Flooring Contractors	$1,530,592	0.4%	Rank history: not on the FY2021 list, #40 in FY2023 and not on the FY2024–FY2025 lists; new.
43	Tucson Building & Remodeling, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,479,773	0.4%	Rank history: #17 in FY2021, #78 in FY2023, #48 in FY2024 and #60 in FY2025; down 26 since FY2021.
44	Alliance Technology Group, LLC Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$1,465,534	0.4%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
45	Elcon Enterprises Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238290 Other Building Equipment Contractors	$1,464,392	0.4%	Rank history: #31 in FY2021, #19 in FY2023, #32 in FY2024 and #75 in FY2025; down 14 since FY2021.
46	Siemens Aktiengesellschaft Through Siemens Industry Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors 561210 Facilities Support Services	$1,420,129	0.4%	Rank history: #64 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
47	Studio Gang Architects Ltd Top NAICS codes 541310 Architectural Services	$1,408,976	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	Pifinity, Inc. Top NAICS codes 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$1,402,427	0.4%	Rank history: #39 in FY2021, #54 in FY2023, #61 in FY2024 and not on the FY2025 list; down 9 since FY2021.
49	ECM Wise Corp Through Spacesaver Systems, Inc. Top NAICS codes 337215 Showcase, Partition, Shelving, and Locker Manufacturing 337214 Office Furniture (except Wood) Manufacturing 238990 All Other Specialty Trade Contractors	$1,400,414	0.4%	Rank history: #49 in FY2021, #35 in FY2023, #9 in FY2024 and not on the FY2025 list; unchanged since FY2021.
50	AECOM Through URS Group Inc-Hartman Cox Architects LLP A Joint Venture Top NAICS codes 541310 Architectural Services	$1,396,281	0.4%	Rank history: #27 in FY2021, #60 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
51	Huang-Cfm Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,334,116	0.3%	Rank history: #14 in FY2021, #18 in FY2023, #30 in FY2024 and #58 in FY2025; down 37 since FY2021.
52	Repaintex Company Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,280,993	0.3%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; up 13 since FY2021.
53	Kunkel Construction, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 541310 Architectural Services	$1,202,710	0.3%	Rank history: #63 in FY2021, #61 in FY2023, #49 in FY2024 and #22 in FY2025; up 10 since FY2021.
54	State of Arizona Through University of Arizona Top NAICS codes 611310 Colleges, Universities, and Professional Schools	$1,198,701	0.3%	Rank history: #44 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
55	Consolidated Edison Through Consolidated Edison Company of New York, Inc. Top NAICS codes 221122 Electric Power Distribution 221330 Steam and Air-Conditioning Supply	$1,178,300	0.3%	Rank history: #53 in FY2021, #68 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
56	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services	$1,147,541	0.3%	Rank history: #77 in FY2021, #55 in FY2023, #69 in FY2024 and #73 in FY2025; up 21 since FY2021.
57	Ruchman and Associates, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$1,075,507	0.3%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; up 14 since FY2021.
58	Quinn Evans Architects Inc. Top NAICS codes 541330 Engineering Services 541310 Architectural Services	$973,602	0.2%	Rank history: #57 in FY2021, #69 in FY2023, #25 in FY2024 and #56 in FY2025; down 1 since FY2021.
59	Virginia Electric and Power Company Top NAICS codes 221122 Electric Power Distribution	$933,000	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Huang-Gaghan Joint Venture Top NAICS codes 236220 Commercial and Institutional Building Construction	$913,198	0.2%	Rank history: #50 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
61	Constructora Rogers, S.A. (Conrosa) Top NAICS codes 236220 Commercial and Institutional Building Construction	$902,973	0.2%	Rank history: #92 in FY2021, not on the FY2023–FY2024 lists and #23 in FY2025; up 31 since FY2021.
62	Serco North America (Holdings) Inc Through Serco Inc. Top NAICS codes 541513 Computer Facilities Management Services	$899,360	0.2%	Rank history: #74 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
63	Burns Wald-Hopkins Shambach Architects, Inc. Top NAICS codes 541310 Architectural Services	$878,496	0.2%	Rank history: #88 in FY2021, #94 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2021.
64	Panum Telecom, L.L.C. Top NAICS codes 561320 Temporary Help Services	$866,516	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
65	Louis Berger U.S. Inc. Through WSP USA Inc. Top NAICS codes 541310 Architectural Services	$865,720	0.2%	Rank history: not on the FY2021 list, #59 in FY2023 and not on the FY2024–FY2025 lists; up 63 since FY2021.
66	Futrend Technology Inc. Top NAICS codes 611420 Computer Training	$844,103	0.2%	Rank history: #37 in FY2021, #39 in FY2023, #75 in FY2024 and #67 in FY2025; down 29 since FY2021.
67	United Development USA Inc. Top NAICS codes 541513 Computer Facilities Management Services	$833,243	0.2%	Rank history: #66 in FY2021, #71 in FY2023, #70 in FY2024 and #86 in FY2025; down 1 since FY2021.
68	Leisnoi Diversified Services, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$806,911	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
69	Dominion Resources Inc. Through Virginia Electric and Power Company Top NAICS codes 221122 Electric Power Distribution	$785,000	0.2%	Rank history: #35 in FY2021, #37 in FY2023, #42 in FY2024 and #46 in FY2025; down 34 since FY2021.
70	Forum One Communications Corp Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$744,576	0.2%	Rank history: #79 in FY2021 and not on the FY2023–FY2025 lists; up 9 since FY2021.
71	Trueblue, Inc. Through Peopleready Inc. Top NAICS codes 561320 Temporary Help Services 238220 Plumbing, Heating, and Air-Conditioning Contractors 541611 Administrative Management and General Management Consulting Services	$671,760	0.2%	Rank history: #70 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
72	Smithgroup Companies, Inc. Through Smithgroup, Inc. Top NAICS codes 541310 Architectural Services	$655,542	0.2%	Rank history: not on the FY2021 list, #49 in FY2023, #87 in FY2024 and not on the FY2025 list; new.
73	The Donohoe Companies. Inc. Through AAA Complete Building Services Inc. Top NAICS codes 561210 Facilities Support Services	$655,101	0.2%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
74	ELY Inc. Top NAICS codes 712110 Museums	$642,173	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 417 since FY2021.
75	Kapstone Technologies, Inc. Top NAICS codes 541513 Computer Facilities Management Services	$636,764	0.2%	Rank history: #51 in FY2021, #72 in FY2023, not on the FY2024 list and #63 in FY2025; down 24 since FY2021.
76	Mcdonough Bolyard Peck, Inc. Top NAICS codes 541350 Building Inspection Services	$635,098	0.2%	Rank history: #60 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
77	Jacobs Engineering Group Inc. Through Jacobs Project Management Co Top NAICS codes 236220 Commercial and Institutional Building Construction	$633,289	0.2%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
78	Coalfire Systems, Inc. Through Veris Group, LLC Top NAICS codes 812990 All Other Personal Services	$621,902	0.2%	Rank history: #69 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2021.
79	Applied Research Associates, Inc. Top NAICS codes 541330 Engineering Services	$607,566	0.2%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
80	Hawaii Electric Light Company Inc. Top NAICS codes 221112 Fossil Fuel Electric Power Generation	$606,000	0.2%	Rank history: #82 in FY2021, #99 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
81	Johnson Controls Security Solutions LLC 4 awardees, including Johnson Controls Fire Protection LP, Johnson Controls Inc. and Shoppertrak RCT LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths) 238220 Plumbing, Heating, and Air-Conditioning Contractors 238290 Other Building Equipment Contractors	$596,511	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 54 since FY2021.
82	GHD Inc. Top NAICS codes 541330 Engineering Services	$566,501	0.1%	Rank history: not on the FY2021 list, #86 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2021.
83	Cloudburst Security LLC Top NAICS codes 812990 All Other Personal Services	$562,761	0.1%	Rank history: #91 in FY2021, #75 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
84	Contracting Solutions, Inc. Top NAICS codes 212321 Construction Sand and Gravel Mining	$543,164	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	Nisource Inc. Through Columbia Gas of Virginia, Inc. Top NAICS codes 221210 Natural Gas Distribution	$523,900	0.1%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; up 9 since FY2021.
86	Servicenow, Inc. Top NAICS codes 541511 Custom Computer Programming Services	$505,640	0.1%	Rank history: #84 in FY2021, #89 in FY2023, #89 in FY2024 and #93 in FY2025; down 2 since FY2021.
87	George Washington University (The) Top NAICS codes 712110 Museums	$500,000	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #92 in FY2024 and not on the FY2025 list; new.
88	Fearless Solutions, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$496,214	0.1%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; new.
89	Verizon Communications Inc. 4 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon Washington, DC Inc. Top NAICS codes 334210 Telephone Apparatus Manufacturing 541519 Other Computer Related Services 517311 Wired Telecommunications Carriers	$475,824	0.1%	Rank history: not on the FY2021 list, #82 in FY2023, #84 in FY2024 and not on the FY2025 list; up 264 since FY2021.
90	Wilmington Trust National Association Through National Association Wilmington Trust Top NAICS codes 511210 Software Publishers 611519 Other Technical and Trade Schools	$473,460	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Trident Builders, LLC Top NAICS codes 541310 Architectural Services	$463,522	0.1%	Rank history: #32 in FY2021 and not on the FY2023–FY2025 lists; down 59 since FY2021.
92	Evolv Technologies Inc. Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$462,852	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Agile Defense, LLC Top NAICS codes 812990 All Other Personal Services	$459,624	0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
94	Thomas A Carcaterra Pe LLC Top NAICS codes 541350 Building Inspection Services	$455,896	0.1%	Rank history: not on the FY2021 list, #90 in FY2023 and not on the FY2024–FY2025 lists; up 73 since FY2021.
95	Westerly Enterprises, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$443,748	0.1%	Rank history: #30 in FY2021, #74 in FY2023, #80 in FY2024 and not on the FY2025 list; down 65 since FY2021.
96	Field Data Technology LLC Top NAICS codes 541519 Other Computer Related Services	$436,949	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 103 since FY2021.
97	David L. Houseman & Associates, LLC Top NAICS codes 611430 Professional and Management Development Training	$427,416	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
98	Washington Suburban Sanitary Commission Top NAICS codes 221310 Water Supply and Irrigation Systems	$426,200	0.1%	Rank history: #100 in FY2021, #92 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
99	Allstream Business US LLC Through Zayo Group LLC Top NAICS codes 517110 Wired Telecommunications Carriers	$426,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 32 since FY2021.
100	F-Concepts, Inc. Top NAICS codes 561720 Janitorial Services	$423,784	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #35 in FY2025; up 51 since FY2021.

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 $391 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