Top 100 Department of Transportation Contractors, FY2023

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	L3Harris Technologies, Inc. 7 awardees, including Harris Corporation, L3Harris Maritime Power & Energy Solutions, Inc. and Stellant Systems Inc. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334419 Other Electronic Component Manufacturing 541512 Computer Systems Design Services	$449,450,939	5.3%	Rank history: #2 in FY2021, #3 in FY2022, #1 in FY2024 and #1 in FY2025; up 2 since FY2022.
2	Leidos Holdings, Inc. 9 awardees, including Leidos, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 488111 Air Traffic Control 541512 Computer Systems Design Services	$446,881,961	5.3%	Rank history: #3 in FY2021, #1 in FY2022, #2 in FY2024 and #2 in FY2025; down 1 since FY2022.
3	Crowley Government Services Inc. 3 awardees Top NAICS codes 336611 Ship Building and Repairing	$326,011,317	3.8%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; up 42 since FY2022.
4	Science Applications International Corporation 4 awardees, including Engility Services, LLC Top NAICS codes 541330 Engineering Services 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$244,669,609	2.9%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2024 and #3 in FY2025; unchanged since FY2022.
5	RTX Corporation 11 awardees, including Raytheon Company, Arinc Incorporated and Noresco, LLC Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541519 Other Computer Related Services	$219,246,375	2.6%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2024 and #4 in FY2025; unchanged since FY2022.
6	The Mitre Corporation Top NAICS codes 541330 Engineering Services 541519 Other Computer Related Services 561990 All Other Support Services	$172,792,895	2.0%	Rank history: #7 in FY2021, #9 in FY2022, #7 in FY2024 and #8 in FY2025; up 3 since FY2022.
7	CDW Corporation Through CDW Government LLC Top NAICS codes 541512 Computer Systems Design Services 334111 Electronic Computer Manufacturing 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$164,831,626	1.9%	Rank history: #10 in FY2021, #8 in FY2022, #22 in FY2024 and not on the FY2025 list; up 1 since FY2022.
8	General Dynamics Corporation 6 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Metro Machine Corp. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 811213 Communication Equipment Repair and Maintenance	$142,399,887	1.7%	Rank history: #8 in FY2021, #11 in FY2022, #6 in FY2024 and #7 in FY2025; up 3 since FY2022.
9	LS Technologies LLC Top NAICS codes 541330 Engineering Services 541511 Custom Computer Programming Services	$127,031,155	1.5%	Rank history: #9 in FY2021, #10 in FY2022, #33 in FY2024 and not on the FY2025 list; up 1 since FY2022.
10	Appalachian Aggregates LLC 3 awardees, including H-K Contractors, Inc. and Staker & Parson Companies Top NAICS codes 237310 Highway, Street, and Bridge Construction	$126,518,667	1.5%	Rank history: not on the FY2021 list, #14 in FY2022, #49 in FY2024 and not on the FY2025 list; up 4 since FY2022.
11	Construction Management Resources Inc. Through Wagman Heavy Civil Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$122,777,776	1.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Noblis, Inc. Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$96,335,557	1.1%	Rank history: #12 in FY2021, #13 in FY2022, #11 in FY2024 and #14 in FY2025; up 1 since FY2022.
13	Granite Construction Company Guam Through Granite Construction Company Top NAICS codes 237310 Highway, Street, and Bridge Construction	$93,245,847	1.1%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2024 and not on the FY2025 list; new.
14	LPC Contractors Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$93,108,136	1.1%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; up 34 since FY2022.
15	Robinson Aviation (Rva), Inc. Top NAICS codes 488111 Air Traffic Control	$80,524,505	0.9%	Rank history: #14 in FY2021, #16 in FY2022, #14 in FY2024 and #16 in FY2025; up 1 since FY2022.
16	Karsun Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$75,736,230	0.9%	Rank history: #13 in FY2021, #19 in FY2022, #17 in FY2024 and #17 in FY2025; up 3 since FY2022.
17	Stratacomm, LLC Top NAICS codes 541810 Advertising Agencies 541820 Public Relations Agencies	$75,549,720	0.9%	Rank history: #17 in FY2021, #18 in FY2022, #16 in FY2024 and #18 in FY2025; up 1 since FY2022.
18	Steve Manning Construction Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$74,832,255	0.9%	Rank history: not on the FY2021 list, #33 in FY2022, #43 in FY2024 and #31 in FY2025; up 15 since FY2022.
19	Midwest Air Traffic Control Service Inc Top NAICS codes 488111 Air Traffic Control	$71,788,409	0.8%	Rank history: #18 in FY2021, #20 in FY2022, #15 in FY2024 and #20 in FY2025; up 1 since FY2022.
20	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$70,671,182	0.8%	Rank history: #6 in FY2021, #6 in FY2022, #13 in FY2024 and #13 in FY2025; down 14 since FY2022.
21	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal System Solutions LLC and Arctic Slope Technical Services, Inc. Top NAICS codes 541330 Engineering Services 541519 Other Computer Related Services	$66,260,625	0.8%	Rank history: #15 in FY2021, #15 in FY2022, #20 in FY2024 and #19 in FY2025; down 6 since FY2022.
22	Dell Federal Systems L.P. 2 awardees Top NAICS codes 513210 Software Publishers 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$63,632,482	0.7%	Rank history: #22 in FY2021, #21 in FY2022 and not on the FY2024–FY2025 lists; down 1 since FY2022.
23	Verizon Communications Inc. 4 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon Virginia LLC Top NAICS codes 517111 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services	$61,349,780	0.7%	Rank history: #87 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 151 since FY2022.
24	Wells Global, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$59,805,465	0.7%	Rank history: #49 in FY2021, #51 in FY2022, #69 in FY2024 and #38 in FY2025; up 27 since FY2022.
25	Concept Solutions LLC Top NAICS codes 541511 Custom Computer Programming Services 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$55,034,426	0.6%	Rank history: #34 in FY2021, #41 in FY2022, #26 in FY2024 and #28 in FY2025; up 16 since FY2022.
26	Tetra Tech, Inc. 3 awardees, including Advanced Management Technology, Inc. and Tetra TECH MA, Inc. Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services 541910 Marketing Research and Public Opinion Polling	$54,783,322	0.6%	Rank history: #19 in FY2021, #17 in FY2022, #10 in FY2024 and #6 in FY2025; down 9 since FY2022.
27	Oasis Systems, LLC Top NAICS codes 541330 Engineering Services	$47,803,037	0.6%	Rank history: #39 in FY2021, #29 in FY2022, #31 in FY2024 and not on the FY2025 list; up 2 since FY2022.
28	Structsure Projects Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$44,554,890	0.5%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #23 in FY2025; new.
29	Wagner Construction, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$41,494,146	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Guidehouse Inc. 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services	$39,901,853	0.5%	Rank history: #88 in FY2021, #44 in FY2022 and not on the FY2024–FY2025 lists; up 14 since FY2022.
31	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541512 Computer Systems Design Services	$39,780,966	0.5%	Rank history: #27 in FY2021, #27 in FY2022, #28 in FY2024 and #41 in FY2025; down 4 since FY2022.
32	Ensco Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$38,016,993	0.4%	Rank history: #64 in FY2021, #79 in FY2022, #51 in FY2024 and #45 in FY2025; up 47 since FY2022.
33	Veracity Engineering LLC Top NAICS codes 541330 Engineering Services	$37,986,787	0.4%	Rank history: #26 in FY2021, #52 in FY2022, #21 in FY2024 and #30 in FY2025; up 19 since FY2022.
34	Jacobs Engineering Group Inc. 5 awardees, including Jacobs Project Management Co and Ch2M Hill, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$36,906,133	0.4%	Rank history: #28 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; up 32 since FY2022.
35	Estes Bros. Const. Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$36,039,673	0.4%	Rank history: #16 in FY2021, #28 in FY2022, #23 in FY2024 and #34 in FY2025; down 7 since FY2022.
36	H.i.g. Capital Management Inc. Through Iron Bow Technologies, LLC Top NAICS codes 334111 Electronic Computer Manufacturing 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers 541519 Other Computer Related Services	$35,114,727	0.4%	Rank history: #68 in FY2021, #35 in FY2022, #55 in FY2024 and not on the FY2025 list; down 1 since FY2022.
37	Serco North America (Holdings) Inc Through Serco Inc. Top NAICS codes 488111 Air Traffic Control	$34,940,435	0.4%	Rank history: #24 in FY2021, #32 in FY2022 and not on the FY2024–FY2025 lists; down 5 since FY2022.
38	Textron Inc. 3 awardees, including Textron Aviation Inc., Avco Corp and Bell Textron Inc. Top NAICS codes 336411 Aircraft Manufacturing 541380 Testing Laboratories and Services 488190 Other Support Activities for Air Transportation	$34,511,196	0.4%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2024 and #10 in FY2025; new.
39	Changeis, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$33,578,526	0.4%	Rank history: #30 in FY2021, #38 in FY2022, #38 in FY2024 and #57 in FY2025; down 1 since FY2022.
40	Transportation Research Center Inc. Top NAICS codes 541380 Testing Laboratories and Services	$33,371,676	0.4%	Rank history: #43 in FY2021, #70 in FY2022, #46 in FY2024 and #67 in FY2025; up 30 since FY2022.
41	Saltchuk Resources, Inc. Through Tote Services, LLC Top NAICS codes 336611 Ship Building and Repairing 483111 Deep Sea Freight Transportation	$33,220,386	0.4%	Rank history: #1 in FY2021, #2 in FY2022 and not on the FY2024–FY2025 lists; down 39 since FY2022.
42	Kallidus Technologies, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$32,620,673	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Las Vegas Paving Corporation Top NAICS codes 237310 Highway, Street, and Bridge Construction	$32,574,602	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation and Park Air Systems Limited Top NAICS codes 517919 All Other Telecommunications 811213 Communication Equipment Repair and Maintenance 811219 Other Electronic and Precision Equipment Repair and Maintenance	$32,189,650	0.4%	Rank history: #50 in FY2021, #93 in FY2022, #65 in FY2024 and not on the FY2025 list; up 49 since FY2022.
45	Herback General Engineering LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$31,954,075	0.4%	Rank history: #58 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 94 since FY2022.
46	Lockheed Martin Corporation 5 awardees, including Lockheed Martin Services, LLC, Zeta Associates Inc. and Lockheed Martin Coherent Technologies, Inc. Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$30,693,059	0.4%	Rank history: #25 in FY2021, #39 in FY2022, #42 in FY2024 and #52 in FY2025; down 7 since FY2022.
47	Ernst & Young LLP Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$30,431,087	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 380 since FY2022.
48	Cusa Consulting LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$29,813,953	0.4%	Rank history: not on the FY2021 list, #92 in FY2022, #57 in FY2024 and not on the FY2025 list; up 44 since FY2022.
49	KLD Associates Inc. 2 awardees Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$29,607,824	0.3%	Rank history: #86 in FY2021, #65 in FY2022, #40 in FY2024 and #53 in FY2025; up 16 since FY2022.
50	Halvik LLC Top NAICS codes 541511 Custom Computer Programming Services 541330 Engineering Services	$29,148,667	0.3%	Rank history: #41 in FY2021, #57 in FY2022, #47 in FY2024 and not on the FY2025 list; up 7 since FY2022.
51	Turner Construction Company Through Flatiron Dragados Constructors, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$28,195,402	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Microtechnologies LLC Top NAICS codes 541512 Computer Systems Design Services	$27,542,133	0.3%	Rank history: #54 in FY2021, #59 in FY2022, #36 in FY2024 and #43 in FY2025; up 7 since FY2022.
53	A3 Technology Inc. Top NAICS codes 541330 Engineering Services	$26,951,764	0.3%	Rank history: #33 in FY2021, #47 in FY2022, #39 in FY2024 and #49 in FY2025; down 6 since FY2022.
54	At&T Inc. 6 awardees, including At&T Enterprises, LLC, Att Mobility LLC and Pacific Bell Telephone Company Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 517919 All Other Telecommunications	$26,695,926	0.3%	Rank history: #82 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
55	Rocky Mountain Construction, LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$25,895,640	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
56	Collabralink Technologies Inc. Through Groundswell Corporation Top NAICS codes 541512 Computer Systems Design Services	$25,803,234	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Language Line LLC Through Senture LLC Top NAICS codes 541519 Other Computer Related Services	$24,368,120	0.3%	Rank history: not on the FY2021 list, #58 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
58	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top NAICS codes 541330 Engineering Services 561621 Security Systems Services (except Locksmiths)	$24,072,452	0.3%	Rank history: #20 in FY2021, #43 in FY2022, #82 in FY2024 and not on the FY2025 list; down 15 since FY2022.
59	Strongbridge LLC Top NAICS codes 541511 Custom Computer Programming Services	$22,801,416	0.3%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and #46 in FY2025; up 126 since FY2022.
60	Spatial Front Inc Top NAICS codes 541511 Custom Computer Programming Services 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$22,484,255	0.3%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and #66 in FY2025; new.
61	Metgreen Solutions Inc Top NAICS codes 541519 Other Computer Related Services	$22,308,403	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	M.c. Dean, Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths) 238210 Electrical Contractors and Other Wiring Installation Contractors	$21,868,244	0.3%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and #33 in FY2025; up 43 since FY2022.
63	Kohler Co. Top NAICS codes 335312 Motor and Generator Manufacturing 493110 General Warehousing and Storage	$21,677,967	0.3%	Rank history: #84 in FY2021, #37 in FY2022 and not on the FY2024–FY2025 lists; down 26 since FY2022.
64	Regulus Group, LLC Top NAICS codes 541330 Engineering Services	$21,260,809	0.3%	Rank history: not on the FY2021 list, #74 in FY2022, #54 in FY2024 and #51 in FY2025; up 10 since FY2022.
65	Red River Technology LLC 2 awardees, including Distributed Technology Group LLC Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$21,185,056	0.2%	Rank history: #72 in FY2021, #42 in FY2022 and not on the FY2024–FY2025 lists; down 23 since FY2022.
66	Bryant's Land and Development Industries, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$20,927,597	0.2%	Rank history: #46 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
67	Pine Meadow Holdings, LLC Through Oceus Networks, LLC Top NAICS codes 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing	$20,428,383	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 51 since FY2022.
68	Evans Incorporated Top NAICS codes 541330 Engineering Services	$18,933,553	0.2%	Rank history: #35 in FY2021, #56 in FY2022, #61 in FY2024 and #72 in FY2025; down 12 since FY2022.
69	CMP Commercial Construction Inc. Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors 236220 Commercial and Institutional Building Construction	$18,394,629	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 45 since FY2022.
70	Cssi Inc. Top NAICS codes 541330 Engineering Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$18,387,489	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2024 and #71 in FY2025; new.
71	Stellar J Corp Top NAICS codes 237310 Highway, Street, and Bridge Construction	$18,258,331	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Pruhs Construction Co., L.L.C. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$18,108,046	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Enroute Computer Solutions Inc. 2 awardees, including Sunhillo Technical Services Corp Top NAICS codes 541519 Other Computer Related Services 541330 Engineering Services	$17,867,478	0.2%	Rank history: #44 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
74	ATAC Top NAICS codes 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541330 Engineering Services	$17,862,690	0.2%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and #73 in FY2025; new.
75	Central Southern Construction Corp. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$17,753,723	0.2%	Rank history: not on the FY2021 list, #90 in FY2022, not on the FY2024 list and #22 in FY2025; up 15 since FY2022.
76	The Matthews Group Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$17,304,101	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #99 in FY2025; new.
77	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$17,231,672	0.2%	Rank history: #61 in FY2021, #78 in FY2022, not on the FY2024 list and #75 in FY2025; up 1 since FY2022.
78	Grant Leading Technology LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 561110 Office Administrative Services	$16,874,076	0.2%	Rank history: not on the FY2021 list, #55 in FY2022, #72 in FY2024 and not on the FY2025 list; down 23 since FY2022.
79	Cexec, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services	$16,119,374	0.2%	Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2024–FY2025 lists; up 21 since FY2022.
80	Cornerstone Construction Services, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors 238210 Electrical Contractors and Other Wiring Installation Contractors	$15,911,261	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	Avantus Federal LLC Top NAICS codes 541519 Other Computer Related Services 561210 Facilities Support Services	$15,885,780	0.2%	Rank history: #93 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 34 since FY2022.
82	General Dynamics Information Technology, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 811213 Communication Equipment Repair and Maintenance 541512 Computer Systems Design Services	$15,678,410	0.2%	Rank history: not on the FY2021 list, #24 in FY2022 and not on the FY2024–FY2025 lists; down 58 since FY2022.
83	Jetcraft Corporation Top NAICS codes 441228 Motorcycle, ATV, and All Other Motor Vehicle Dealers	$15,541,000	0.2%	Rank history: not on the FY2021 list, #34 in FY2022 and not on the FY2024–FY2025 lists; down 49 since FY2022.
84	Condor Reliability Services, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$15,196,048	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; up 96 since FY2022.
85	Guardian Construction, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 238220 Plumbing, Heating, and Air-Conditioning Contractors 238210 Electrical Contractors and Other Wiring Installation Contractors	$15,149,369	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Chickasaw Strategic Pointe, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$15,051,283	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 39 since FY2022.
87	Novel Construction LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$14,972,813	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
88	Advanced Sciences and Technologies, LLC Top NAICS codes 541330 Engineering Services	$14,832,071	0.2%	Rank history: #56 in FY2021, #96 in FY2022, #97 in FY2024 and not on the FY2025 list; up 8 since FY2022.
89	Frontline King George JV LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$14,638,000	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
90	Allen Corporation of America, Inc. Top NAICS codes 611512 Flight Training	$14,632,326	0.2%	Rank history: #74 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 17 since FY2022.
91	Dske Construction LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$14,525,313	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Eaton Corporation 3 awardees Top NAICS codes 811219 Other Electronic and Precision Equipment Repair and Maintenance 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing 335311 Power, Distribution, and Specialty Transformer Manufacturing	$14,390,685	0.2%	Rank history: #71 in FY2021, #89 in FY2022, not on the FY2024 list and #82 in FY2025; down 3 since FY2022.
93	ST Rhoades Construction Inc Through S.t.rhoades Construction Incorporated Top NAICS codes 237310 Highway, Street, and Bridge Construction	$14,289,550	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Brice Solutions, LLC Top NAICS codes 562910 Remediation Services 237130 Power and Communication Line and Related Structures Construction 237110 Water and Sewer Line and Related Structures Construction	$14,274,423	0.2%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2024 and not on the FY2025 list; up 176 since FY2022.
95	Unified Contractor, Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 236210 Industrial Building Construction	$14,141,424	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Janco FS 2, LLC Top NAICS codes 561210 Facilities Support Services	$14,074,030	0.2%	Rank history: not on the FY2021–FY2022 lists, #89 in FY2024 and #94 in FY2025; new.
97	Hatch Construction & Paving Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$13,847,688	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Virginia Commonwealth University 2 awardees, including Virginia Polytechnic Institute & State University Top NAICS codes 541380 Testing Laboratories and Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541990 All Other Professional, Scientific, and Technical Services	$13,772,827	0.2%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2024 and not on the FY2025 list; new.
99	Rivertech LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$13,555,107	0.2%	Rank history: #94 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
100	Serco Inc Top NAICS codes 488111 Air Traffic Control 541611 Administrative Management and General Management Consulting Services	$13,484,196	0.2%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2024 and #44 in FY2025; new.

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 $8.49 billion 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