Top 100 Department of Transportation Contractors, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	L3Harris Technologies, Inc. 7 awardees, including Harris Corporation and Stellant Systems Inc. Top NAICS codes 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 541512 Computer Systems Design Services 541330 Engineering Services	$497,046,422	5.9%	Rank history: #2 in FY2021, #3 in FY2022, #1 in FY2023 and #1 in FY2025; unchanged since FY2023.
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	$405,810,551	4.8%	Rank history: #3 in FY2021, #1 in FY2022, #2 in FY2023 and #2 in FY2025; unchanged since FY2023.
3	Crowley Government Services, Inc. Top NAICS codes 336611 Ship Building and Repairing	$340,767,937	4.1%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
4	Science Applications International Corporation 5 awardees Top NAICS codes 541330 Engineering Services 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$248,627,086	3.0%	Rank history: #4 in FY2021, #4 in FY2022, #4 in FY2023 and #3 in FY2025; unchanged since FY2023.
5	RTX Corporation 13 awardees, including Raytheon Company, Arinc Incorporated and Rockwell Collins, Inc. Top NAICS codes 541330 Engineering Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 541519 Other Computer Related Services	$225,300,851	2.7%	Rank history: #5 in FY2021, #5 in FY2022, #5 in FY2023 and #4 in FY2025; unchanged since FY2023.
6	General Dynamics Corporation 7 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	$176,599,556	2.1%	Rank history: #8 in FY2021, #11 in FY2022, #8 in FY2023 and #7 in FY2025; up 2 since FY2023.
7	The Mitre Corporation 2 awardees Top NAICS codes 541330 Engineering Services 561990 All Other Support Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$167,002,478	2.0%	Rank history: #7 in FY2021, #9 in FY2022, #6 in FY2023 and #8 in FY2025; down 1 since FY2023.
8	Verizon 2 awardees, including Verizon Business Network Services LLC and Cellco Partnership Top NAICS codes 517111 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 541519 Other Computer Related Services	$134,867,007	1.6%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2025; new.
9	CDW Government LLC Top NAICS codes 334111 Electronic Computer Manufacturing 541512 Computer Systems Design Services 541519 Other Computer Related Services	$129,408,317	1.5%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2025; new.
10	Tetra Tech, Inc. 4 awardees, including LS Technologies LLC, 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	$120,518,930	1.4%	Rank history: #19 in FY2021, #17 in FY2022, #26 in FY2023 and #6 in FY2025; up 16 since FY2023.
11	Noblis, Inc. Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$117,139,436	1.4%	Rank history: #12 in FY2021, #13 in FY2022, #12 in FY2023 and #14 in FY2025; up 1 since FY2023.
12	Granite Construction Company Guam Through Granite Construction Company Top NAICS codes 237310 Highway, Street, and Bridge Construction	$111,582,470	1.3%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and not on the FY2025 list; up 1 since FY2023.
13	Parsons Corporation 2 awardees, including Ptsi Managed Services Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$94,402,650	1.1%	Rank history: #6 in FY2021, #6 in FY2022, #20 in FY2023 and #13 in FY2025; up 7 since FY2023.
14	Robinson Aviation (Rva), Inc. Top NAICS codes 488111 Air Traffic Control	$89,862,241	1.1%	Rank history: #14 in FY2021, #16 in FY2022, #15 in FY2023 and #16 in FY2025; up 1 since FY2023.
15	Midwest Air Traffic Control Service Inc Top NAICS codes 488111 Air Traffic Control	$76,911,200	0.9%	Rank history: #18 in FY2021, #20 in FY2022, #19 in FY2023 and #20 in FY2025; up 4 since FY2023.
16	Stratacomm, LLC Top NAICS codes 541810 Advertising Agencies	$74,627,798	0.9%	Rank history: #17 in FY2021, #18 in FY2022, #17 in FY2023 and #18 in FY2025; up 1 since FY2023.
17	Karsun Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$71,090,967	0.8%	Rank history: #13 in FY2021, #19 in FY2022, #16 in FY2023 and #17 in FY2025; down 1 since FY2023.
18	Dell Technologies Inc. 2 awardees, including Dell Federal Systems L.P Top NAICS codes 513210 Software Publishers 541519 Other Computer Related Services	$67,436,068	0.8%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
19	Kokosing Construction Company, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$67,169,240	0.8%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
20	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	$62,696,752	0.7%	Rank history: #15 in FY2021, #15 in FY2022, #21 in FY2023 and #19 in FY2025; up 1 since FY2023.
21	Veracity Engineering LLC Top NAICS codes 541330 Engineering Services	$58,532,591	0.7%	Rank history: #26 in FY2021, #52 in FY2022, #33 in FY2023 and #30 in FY2025; up 12 since FY2023.
22	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	$57,185,723	0.7%	Rank history: #10 in FY2021, #8 in FY2022, #7 in FY2023 and not on the FY2025 list; down 15 since FY2023.
23	Estes Bros. Const. Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$54,532,663	0.6%	Rank history: #16 in FY2021, #28 in FY2022, #35 in FY2023 and #34 in FY2025; up 12 since FY2023.
24	Serco Inc Top NAICS codes 488111 Air Traffic Control 541611 Administrative Management and General Management Consulting Services	$53,470,880	0.6%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023 and #44 in FY2025; up 76 since FY2023.
25	Textron Inc. 3 awardees, including Textron Aviation Inc. Top NAICS codes 336411 Aircraft Manufacturing 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing 611512 Flight Training	$50,250,154	0.6%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and #10 in FY2025; up 13 since FY2023.
26	Concept Solutions LLC Top NAICS codes 541511 Custom Computer Programming Services 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$47,248,850	0.6%	Rank history: #34 in FY2021, #41 in FY2022, #25 in FY2023 and #28 in FY2025; down 1 since FY2023.
27	Ptsi Managed Services Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$46,970,992	0.6%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
28	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541511 Custom Computer Programming Services	$45,192,317	0.5%	Rank history: #27 in FY2021, #27 in FY2022, #31 in FY2023 and #41 in FY2025; up 3 since FY2023.
29	Walsh Federal LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$41,478,370	0.5%	Rank history: not on the FY2021–FY2023 lists and #12 in FY2025; new.
30	Honeywell International Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 561621 Security Systems Services (except Locksmiths)	$41,103,558	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
31	Oasis Systems, LLC Top NAICS codes 541330 Engineering Services	$39,291,189	0.5%	Rank history: #39 in FY2021, #29 in FY2022, #27 in FY2023 and not on the FY2025 list; down 4 since FY2023.
32	Spatial Front Inc Top NAICS codes 541511 Custom Computer Programming Services 541519 Other Computer Related Services 561990 All Other Support Services	$38,945,530	0.5%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and #66 in FY2025; up 28 since FY2023.
33	LS Technologies LLC Top NAICS codes 541330 Engineering Services	$37,447,582	0.4%	Rank history: #9 in FY2021, #10 in FY2022, #9 in FY2023 and not on the FY2025 list; down 24 since FY2023.
34	At&T Inc. 4 awardees, including At&T Enterprises, LLC and Att Mobility LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 517810 All Other Telecommunications	$36,844,109	0.4%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
35	E Corp Top NAICS codes 236220 Commercial and Institutional Building Construction	$36,205,932	0.4%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2025; up 78 since FY2023.
36	Microtechnologies LLC Top NAICS codes 541512 Computer Systems Design Services 513210 Software Publishers	$34,887,607	0.4%	Rank history: #54 in FY2021, #59 in FY2022, #52 in FY2023 and #43 in FY2025; up 16 since FY2023.
37	Semanticbits LLC 2 awardees, including ICF Incorporated, L.L.C. and Incentive Technology Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541513 Computer Facilities Management Services 541620 Environmental Consulting Services	$34,558,726	0.4%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2025; new.
38	Changeis, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 541519 Other Computer Related Services	$33,146,156	0.4%	Rank history: #30 in FY2021, #38 in FY2022, #39 in FY2023 and #57 in FY2025; up 1 since FY2023.
39	A3 Technology Inc. Top NAICS codes 541330 Engineering Services	$32,374,125	0.4%	Rank history: #33 in FY2021, #47 in FY2022, #53 in FY2023 and #49 in FY2025; up 14 since FY2023.
40	KLD Associates Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541330 Engineering Services	$32,335,676	0.4%	Rank history: #86 in FY2021, #65 in FY2022, #49 in FY2023 and #53 in FY2025; up 9 since FY2023.
41	Joseph J. Albanese, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$32,156,479	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
42	Lockheed Martin Corporation 4 awardees, including Lockheed Martin Services, LLC, Zeta Associates Inc. and Lockheed Martin Coherent Technologies, Inc. Top NAICS codes 541330 Engineering Services 334519 Other Measuring and Controlling Device Manufacturing 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$31,928,591	0.4%	Rank history: #25 in FY2021, #39 in FY2022, #46 in FY2023 and #52 in FY2025; up 4 since FY2023.
43	Steve Manning Construction Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$31,872,077	0.4%	Rank history: not on the FY2021 list, #33 in FY2022, #18 in FY2023 and #31 in FY2025; down 25 since FY2023.
44	Frequentis Usa, Inc. Top NAICS codes 334210 Telephone Apparatus Manufacturing 811213 Communication Equipment Repair and Maintenance 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing	$31,643,165	0.4%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2025; new.
45	Strongbridge LLC Top NAICS codes 541511 Custom Computer Programming Services	$31,234,133	0.4%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023 and #46 in FY2025; up 14 since FY2023.
46	Transportation Research Center Inc. Top NAICS codes 541380 Testing Laboratories and Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$31,039,757	0.4%	Rank history: #43 in FY2021, #70 in FY2022, #40 in FY2023 and #67 in FY2025; down 6 since FY2023.
47	Halvik LLC Top NAICS codes 541511 Custom Computer Programming Services 541330 Engineering Services	$30,538,746	0.4%	Rank history: #41 in FY2021, #57 in FY2022, #50 in FY2023 and not on the FY2025 list; up 3 since FY2023.
48	Guidehouse Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$29,996,562	0.4%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
49	Appalachian Aggregates LLC 2 awardees, including H-K Contractors, Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$29,774,954	0.4%	Rank history: not on the FY2021 list, #14 in FY2022, #10 in FY2023 and not on the FY2025 list; down 39 since FY2023.
50	Jacobs Government Services Company 5 awardees, including Jacobs Engineering Group Inc. and Jacobs Project Management Co Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$29,101,609	0.3%	Rank history: not on the FY2021–FY2023 lists and #36 in FY2025; new.
51	Ensco Inc. Top NAICS codes 541330 Engineering Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$27,142,265	0.3%	Rank history: #64 in FY2021, #79 in FY2022, #32 in FY2023 and #45 in FY2025; down 19 since FY2023.
52	Groundswell Corporation Top NAICS codes 541512 Computer Systems Design Services	$26,465,599	0.3%	Rank history: #62 in FY2021, #60 in FY2022, not on the FY2023 list and #68 in FY2025; returned.
53	Senture LLC Top NAICS codes 541519 Other Computer Related Services	$26,309,329	0.3%	Rank history: #48 in FY2021, not on the FY2022–FY2023 lists and #50 in FY2025; returned.
54	Regulus Group, LLC Top NAICS codes 541330 Engineering Services	$26,014,913	0.3%	Rank history: not on the FY2021 list, #74 in FY2022, #64 in FY2023 and #51 in FY2025; up 10 since FY2023.
55	H.i.g. Capital Management Inc. Through Iron Bow Technologies, LLC Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers	$25,674,952	0.3%	Rank history: #68 in FY2021, #35 in FY2022, #36 in FY2023 and not on the FY2025 list; down 19 since FY2023.
56	Ernst & Young LLP 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541519 Other Computer Related Services	$25,379,075	0.3%	Rank history: not on the FY2021–FY2023 lists and #32 in FY2025; new.
57	Cusa Consulting LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$24,967,839	0.3%	Rank history: not on the FY2021 list, #92 in FY2022, #48 in FY2023 and not on the FY2025 list; down 9 since FY2023.
58	Tote Services, LLC Top NAICS codes 483111 Deep Sea Freight Transportation 336611 Ship Building and Repairing	$23,905,241	0.3%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
59	Cssi Inc. Top NAICS codes 541330 Engineering Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$23,382,073	0.3%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023 and #71 in FY2025; up 11 since FY2023.
60	Capital Group, LLC Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$23,140,635	0.3%	Rank history: not on the FY2021–FY2023 lists and #55 in FY2025; up 49 since FY2023.
61	Evans Incorporated Top NAICS codes 541330 Engineering Services	$22,840,619	0.3%	Rank history: #35 in FY2021, #56 in FY2022, #68 in FY2023 and #72 in FY2025; up 7 since FY2023.
62	Summit Materials, Inc. Through Kilgore Companies, LLC Top NAICS codes 237310 Highway, Street, and Bridge Construction	$22,736,216	0.3%	Rank history: not on the FY2021 list, #81 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
63	Martin Brothers Construction Top NAICS codes 237310 Highway, Street, and Bridge Construction	$21,922,623	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 167 since FY2023.
64	Alliant Insurance Services, Inc. Top NAICS codes 524210 Insurance Agencies and Brokerages 524298 All Other Insurance Related Activities	$21,191,635	0.3%	Rank history: #63 in FY2021, #85 in FY2022, not on the FY2023 list and #91 in FY2025; up 56 since FY2023.
65	Northrop Grumman Corporation 3 awardees, including Northrop Grumman Systems Corporation Top NAICS codes 517919 All Other Telecommunications 811219 Other Electronic and Precision Equipment Repair and Maintenance 811213 Communication Equipment Repair and Maintenance	$20,912,337	0.2%	Rank history: #50 in FY2021, #93 in FY2022, #44 in FY2023 and not on the FY2025 list; down 21 since FY2023.
66	Brice Solutions, LLC Top NAICS codes 562910 Remediation Services 236220 Commercial and Institutional Building Construction 237110 Water and Sewer Line and Related Structures Construction	$20,528,172	0.2%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2025 list; up 28 since FY2023.
67	Oceus Networks, LLC Top NAICS codes 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing	$20,388,074	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
68	M.c. Dean, Inc. Top NAICS codes 561621 Security Systems Services (except Locksmiths) 238210 Electrical Contractors and Other Wiring Installation Contractors	$20,385,301	0.2%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and #33 in FY2025; down 6 since FY2023.
69	Wells Global, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 611519 Other Technical and Trade Schools	$20,312,274	0.2%	Rank history: #49 in FY2021, #51 in FY2022, #24 in FY2023 and #38 in FY2025; down 45 since FY2023.
70	Cavan Solutions Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$20,151,378	0.2%	Rank history: not on the FY2021 list, #68 in FY2022, not on the FY2023 list and #64 in FY2025; up 37 since FY2023.
71	ATAC Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$19,765,756	0.2%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #73 in FY2025; up 3 since FY2023.
72	Grant Leading Technology LLC Top NAICS codes 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services 541612 Human Resources Consulting Services	$18,445,074	0.2%	Rank history: not on the FY2021 list, #55 in FY2022, #78 in FY2023 and not on the FY2025 list; up 6 since FY2023.
73	AECOM Technical Services, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 561720 Janitorial Services	$17,069,642	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
74	Bering Straits Professional Services, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$16,462,236	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
75	New Bedford Panoramex Corp. Top NAICS codes 334519 Other Measuring and Controlling Device Manufacturing 335139 Electric Lamp Bulb and Other Lighting Equipment Manufacturing 334419 Other Electronic Component Manufacturing	$16,454,753	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 179 since FY2023.
76	Metgreen Solutions Inc. Top NAICS codes 541519 Other Computer Related Services 449210 Electronics and Appliance Retailers	$16,396,723	0.2%	Rank history: not on the FY2021–FY2023 lists and #78 in FY2025; new.
77	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$16,282,632	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 25 since FY2023.
78	Kovilic Construction Co Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$15,874,702	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 33 since FY2023.
79	Washington Metropolitan Area Transit Authority Top NAICS codes 485999 All Other Transit and Ground Passenger Transportation 485111 Mixed Mode Transit Systems	$15,829,091	0.2%	Rank history: not on the FY2021–FY2023 lists and #40 in FY2025; up 40 since FY2023.
80	Rigil Corporation Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541519 Other Computer Related Services 541330 Engineering Services	$15,771,538	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 71 since FY2023.
81	Chickasaw Nation 4 awardees, including Digitalibiz, LLC, CNI Aviation, LLC and CNI Manufacturing, LLC Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services 332311 Prefabricated Metal Building and Component Manufacturing	$15,714,518	0.2%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2025; new.
82	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top NAICS codes 541330 Engineering Services 561621 Security Systems Services (except Locksmiths)	$15,649,411	0.2%	Rank history: #20 in FY2021, #43 in FY2022, #58 in FY2023 and not on the FY2025 list; down 24 since FY2023.
83	Riverside Contracting Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$15,454,036	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
84	Vero Technical Support Inc Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$15,022,934	0.2%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2025; up 109 since FY2023.
85	Puyenpa Construction, LLC Top NAICS codes 237110 Water and Sewer Line and Related Structures Construction 238210 Electrical Contractors and Other Wiring Installation Contractors 238220 Plumbing, Heating, and Air-Conditioning Contractors	$14,710,467	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Eaton Corporation Top NAICS codes 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing 811210 Electronic and Precision Equipment Repair and Maintenance 811219 Other Electronic and Precision Equipment Repair and Maintenance	$14,610,147	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
87	Quad J Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 335129 Other Lighting Equipment Manufacturing	$14,437,907	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 160 since FY2023.
88	Jet Support Services, Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation 336412 Aircraft Engine and Engine Parts Manufacturing	$14,268,905	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 45 since FY2023.
89	Janco FS 2, LLC Top NAICS codes 561210 Facilities Support Services	$14,157,850	0.2%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and #94 in FY2025; up 7 since FY2023.
90	Tj&B Air Conditioning and Electric, LLC Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$13,992,834	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 39 since FY2023.
91	Sysnet Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services 541330 Engineering Services	$13,897,507	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 17 since FY2023.
92	Hardrives Construction Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$13,853,038	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
93	Sentinel Power Services, LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$13,846,015	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, not on the FY2023 list and #93 in FY2025; up 42 since FY2023.
94	HP Civil Inc Top NAICS codes 237310 Highway, Street, and Bridge Construction	$13,815,895	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
95	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	$13,704,013	0.2%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and not on the FY2025 list; up 3 since FY2023.
96	Golder Europe Service Centre SRL 6 awardees, including WSP USA Solutions Inc. and WSP USA Inc. Top NAICS codes 541620 Environmental Consulting Services 541330 Engineering Services 611430 Professional and Management Development Training	$13,701,735	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
97	Advanced Sciences and Technologies, LLC Top NAICS codes 541330 Engineering Services	$13,694,795	0.2%	Rank history: #56 in FY2021, #96 in FY2022, #88 in FY2023 and not on the FY2025 list; down 9 since FY2023.
98	VSS International Inc. Top NAICS codes 237310 Highway, Street, and Bridge Construction	$13,425,331	0.2%	Rank history: not on the FY2021 list, #50 in FY2022, not on the FY2023 list and not on the FY2025 list; up 65 since FY2023.
99	Five Rivers Analytics, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$13,360,415	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
100	Diversified Management Solutions, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$13,155,312	0.2%	Rank history: #95 in FY2021, not on the FY2022–FY2023 lists and #87 in FY2025; up 112 since FY2023.

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 $8.4 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 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.

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