Top 100 Defense Advanced Research Projects Agency Contractors, FY2024

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	The Boeing Company 11 awardees, including Aurora Flight Sciences Corporation, HRL Laboratories, LLC and Argon ST, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 336411 Aircraft Manufacturing	$426,849,620	15.6%	Rank history: #7 in FY2021, #12 in FY2022, #6 in FY2023 and #10 in FY2025; up 5 since FY2023.
2	Lockheed Martin Corporation 15 awardees, including Lockheed Martin Aculight Corporation and Sikorsky Aircraft Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541713 Research and Development in Nanotechnology	$270,686,187	9.9%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023 and #1 in FY2025; unchanged since FY2023.
3	Securigence LLC Top NAICS codes 541511 Custom Computer Programming Services	$122,226,780	4.5%	Rank history: #12 in FY2021, #4 in FY2022, #5 in FY2023 and #3 in FY2025; up 2 since FY2023.
4	Northrop Grumman Corporation 12 awardees, including Northrop Grumman Systems Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541713 Research and Development in Nanotechnology 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$115,714,307	4.2%	Rank history: #4 in FY2021, #3 in FY2022, #4 in FY2023 and #7 in FY2025; unchanged since FY2023.
5	RTX Corporation 13 awardees, including RTX BBN Technologies, Inc., Raytheon Company and Rockwell Collins, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$101,406,523	3.7%	Rank history: #2 in FY2021, #1 in FY2022, #1 in FY2023 and #5 in FY2025; down 4 since FY2023.
6	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$65,700,937	2.4%	Rank history: #8 in FY2021, #9 in FY2022, #8 in FY2023 and #6 in FY2025; up 2 since FY2023.
7	Systems & Technology Research LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$64,095,250	2.3%	Rank history: #3 in FY2021, #6 in FY2022, #7 in FY2023 and #14 in FY2025; unchanged since FY2023.
8	Space Exploration Technologies Corp.	$56,100,000	2.1%	Rank history: not on the FY2021–FY2023 lists and #11 in FY2025; new.
9	BAE Systems 7 awardees, including BAE Systems Information & Electronic Systems Integration Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$55,644,978	2.0%	Rank history: #14 in FY2021, #7 in FY2022, #3 in FY2023 and #4 in FY2025; down 6 since FY2023.
10	The Johns Hopkins University Applied Physics Laboratory LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$55,546,967	2.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
11	The Mitre Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$51,862,626	1.9%	Rank history: #39 in FY2021, #88 in FY2022, not on the FY2023 list and not on the FY2025 list; returned.
12	Strategic Analysis, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$46,420,508	1.7%	Rank history: #24 in FY2021, #17 in FY2022, #14 in FY2023 and #9 in FY2025; up 2 since FY2023.
13	Sri International Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541713 Research and Development in Nanotechnology 541611 Administrative Management and General Management Consulting Services	$44,700,540	1.6%	Rank history: #6 in FY2021, #8 in FY2022, #13 in FY2023 and #13 in FY2025; unchanged since FY2023.
14	General Atomic Technologies Corporation 2 awardees, including General Atomics Aeronautical Systems, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$43,151,180	1.6%	Rank history: #17 in FY2021, #25 in FY2022, #16 in FY2023 and not on the FY2025 list; up 2 since FY2023.
15	General Dynamics Corporation 5 awardees, including Applied Physical Sciences Corp and Csra LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541511 Custom Computer Programming Services 541330 Engineering Services	$42,358,756	1.5%	Rank history: #5 in FY2021, #10 in FY2022, #12 in FY2023 and #12 in FY2025; down 3 since FY2023.
16	Peraton Labs Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$37,277,551	1.4%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2025; new.
17	Kudu Dynamics LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 511110 Newspaper Publishers	$36,465,895	1.3%	Rank history: #27 in FY2021, #27 in FY2022, #27 in FY2023 and not on the FY2025 list; up 10 since FY2023.
18	System High Corporation Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$34,159,484	1.2%	Rank history: #21 in FY2021, #30 in FY2022, #18 in FY2023 and #16 in FY2025; unchanged since FY2023.
19	Asgn Incorporated Through ECS Federal, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$27,744,612	1.0%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2025; new.
20	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$27,535,746	1.0%	Rank history: #61 in FY2021, #43 in FY2022, #63 in FY2023 and #26 in FY2025; up 43 since FY2023.
21	Two Six Parent Inc. 2 awardees, including Two Six Labs, LLC and River Loop Security LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$26,253,011	1.0%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2025; up 158 since FY2023.
22	General Atomics Aeronautical Systems, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$26,237,959	1.0%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
23	Battelle Memorial Institute Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$25,121,675	0.9%	Rank history: #18 in FY2021, #29 in FY2022, #26 in FY2023 and #18 in FY2025; up 3 since FY2023.
24	Teledyne Technologies Incorporated 3 awardees, including Teledyne Scientific & Imaging, LLC and Teledyne Flir Defense, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$23,990,175	0.9%	Rank history: #49 in FY2021, #33 in FY2022, #33 in FY2023 and #56 in FY2025; up 9 since FY2023.
25	Triad National Security LLC Top NAICS codes 561210 Facilities Support Services	$23,743,706	0.9%	Rank history: not on the FY2021–FY2023 lists and #27 in FY2025; new.
26	Mantech International Corporation Through Mantech SRS Technologies, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$21,961,121	0.8%	Rank history: #60 in FY2021, #41 in FY2022, #28 in FY2023 and not on the FY2025 list; up 2 since FY2023.
27	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. and Dynetics, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541330 Engineering Services	$19,332,947	0.7%	Rank history: #13 in FY2021, #21 in FY2022, #22 in FY2023 and #20 in FY2025; down 5 since FY2023.
28	Galois, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$16,188,545	0.6%	Rank history: #20 in FY2021, #24 in FY2022, #20 in FY2023 and #19 in FY2025; down 8 since FY2023.
29	Two Six Labs Holdings, Inc. Through Two Six Labs, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$15,855,758	0.6%	Rank history: #15 in FY2021, #11 in FY2022, #10 in FY2023 and not on the FY2025 list; down 19 since FY2023.
30	The Johns Hopkins University Through The Johns Hopkins University Applied Physics Laboratory LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$15,582,113	0.6%	Rank history: #9 in FY2021, #5 in FY2022, #9 in FY2023 and not on the FY2025 list; down 21 since FY2023.
31	Georgia TECH Research Corp 2 awardees, including Georgia TECH Applied Research Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$14,582,817	0.5%	Rank history: #23 in FY2021, #22 in FY2022, #21 in FY2023 and #47 in FY2025; down 10 since FY2023.
32	HRL Laboratories, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$14,101,791	0.5%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
33	University of Washington 2 awardees Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$13,832,111	0.5%	Rank history: #92 in FY2021, #75 in FY2022, #75 in FY2023 and #57 in FY2025; up 42 since FY2023.
34	University of Southern California Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 611310 Colleges, Universities, and Professional Schools	$13,801,623	0.5%	Rank history: #22 in FY2021, #23 in FY2022, #24 in FY2023 and #69 in FY2025; down 10 since FY2023.
35	The Veritas Capital Fund VII L P Through Peraton Labs Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$12,828,211	0.5%	Rank history: not on the FY2021 list, #16 in FY2022, #11 in FY2023 and not on the FY2025 list; down 24 since FY2023.
36	A2 Labs, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$12,082,145	0.4%	Rank history: #77 in FY2021, #99 in FY2022, #69 in FY2023 and #43 in FY2025; up 33 since FY2023.
37	Carnegie Robotics LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$12,040,718	0.4%	Rank history: not on the FY2021 list, #46 in FY2022, #58 in FY2023 and #60 in FY2025; up 21 since FY2023.
38	Koniag Professional Services, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$11,836,861	0.4%	Rank history: not on the FY2021–FY2023 lists and #28 in FY2025; new.
39	Cromulence LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$11,526,796	0.4%	Rank history: #98 in FY2021, #81 in FY2022, #87 in FY2023 and #38 in FY2025; up 48 since FY2023.
40	The Charles Stark Draper Laboratory, Inc. Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$11,093,589	0.4%	Rank history: #35 in FY2021, #57 in FY2022, #29 in FY2023 and #49 in FY2025; down 11 since FY2023.
41	General Electric Company 3 awardees, including Torch Research, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$10,613,954	0.4%	Rank history: #16 in FY2021, #15 in FY2022, #15 in FY2023 and #70 in FY2025; down 26 since FY2023.
42	Charles River Analytics, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$10,418,551	0.4%	Rank history: #29 in FY2021, #35 in FY2022, #25 in FY2023 and #34 in FY2025; down 17 since FY2023.
43	Southwest Research Institute Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$10,210,737	0.4%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023 and #22 in FY2025; up 54 since FY2023.
44	University of Texas System Through University of Texas At Austin Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$9,840,887	0.4%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023 and not on the FY2025 list; up 36 since FY2023.
45	The Leland Stanford Junior University	$9,794,107	0.4%	Rank history: #33 in FY2021, #40 in FY2022, #43 in FY2023 and #74 in FY2025; down 2 since FY2023.
46	GE Medical Systems Information Technologies, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$9,317,143	0.3%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2025; new.
47	The Pennsylvania State University Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$9,046,030	0.3%	Rank history: #87 in FY2021, #32 in FY2022, #36 in FY2023 and #21 in FY2025; down 11 since FY2023.
48	University of Hawaii Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$8,842,578	0.3%	Rank history: not on the FY2021–FY2023 lists and #63 in FY2025; new.
49	Canadian Commercial Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$8,697,699	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
50	Schafer Government Services, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$8,345,604	0.3%	Rank history: not on the FY2021–FY2023 lists and #8 in FY2025; new.
51	Gentech Associates Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$8,128,201	0.3%	Rank history: not on the FY2021 list, #92 in FY2022, #88 in FY2023 and #64 in FY2025; up 37 since FY2023.
52	Cynnovative, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$7,759,541	0.3%	Rank history: not on the FY2021 list, #68 in FY2022, #53 in FY2023 and #54 in FY2025; up 1 since FY2023.
53	The Trustees of the University of Pennsylvania 3 awardees Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$7,442,148	0.3%	Rank history: not on the FY2021 list, #63 in FY2022, #59 in FY2023 and not on the FY2025 list; up 6 since FY2023.
54	Regents of the University of Michigan Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$7,178,524	0.3%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 91 since FY2023.
55	Huntington Ingalls Industries, Inc. 2 awardees, including HII Mission Technologies Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$7,159,446	0.3%	Rank history: not on the FY2021–FY2023 lists and #59 in FY2025; new.
56	Spirit Aerosystems Holdings, Inc. Through Spirit Aerosystems Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$6,950,000	0.3%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2025; new.
57	Arizona State University Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology) 611310 Colleges, Universities, and Professional Schools	$6,902,144	0.3%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2025; new.
58	Blackhorse, A Parsons LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$6,623,701	0.2%	Rank history: not on the FY2021–FY2023 lists and #87 in FY2025; new.
59	Kitware Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$6,313,858	0.2%	Rank history: not on the FY2021–FY2022 lists, #44 in FY2023 and #33 in FY2025; down 15 since FY2023.
60	ECS Federal, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$6,150,462	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
61	Lockheed Martin Aculight Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$6,136,332	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
62	Pacific Marine & Supply Company Ltd Through Pacmar Technologies LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$6,099,234	0.2%	Rank history: #25 in FY2021, #18 in FY2022, #35 in FY2023 and not on the FY2025 list; down 27 since FY2023.
63	Chameleon Consulting Group, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$6,005,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2023 and not on the FY2025 list; down 25 since FY2023.
64	Ozark Integrated Circuits Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$5,588,096	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 72 since FY2023.
65	Summit2Sea Consulting, LLC Top NAICS codes 541519 Other Computer Related Services	$5,532,163	0.2%	Rank history: #81 in FY2021, #82 in FY2022, #50 in FY2023 and #50 in FY2025; down 15 since FY2023.
66	Cerebras Systems Inc.	$5,467,099	0.2%	Rank history: #30 in FY2021, not on the FY2022 list, #42 in FY2023 and not on the FY2025 list; down 24 since FY2023.
67	Research Innovations Incorporated Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$5,292,054	0.2%	Rank history: not on the FY2021 list, #61 in FY2022, #64 in FY2023 and not on the FY2025 list; down 3 since FY2023.
68	Qorvo, Inc. Through Qorvo Texas, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$5,136,701	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
69	CACI International Inc. 5 awardees, including Caci, Inc. - Federal and Caci LGS Innovations LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$4,883,577	0.2%	Rank history: #28 in FY2021, #13 in FY2022, #19 in FY2023 and #35 in FY2025; down 50 since FY2023.
70	Aerovironment, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$4,879,422	0.2%	Rank history: #32 in FY2021, #66 in FY2022, not on the FY2023 list and not on the FY2025 list; up 41 since FY2023.
71	Nakupuna Consulting LLC Top NAICS codes 541519 Other Computer Related Services	$4,878,011	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and #51 in FY2025; down 26 since FY2023.
72	MRIGLOBAL Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541690 Other Scientific and Technical Consulting Services	$4,734,375	0.2%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023 and not on the FY2025 list; down 38 since FY2023.
73	Thomson Reuters Special Services LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$4,591,945	0.2%	Rank history: #72 in FY2021, #34 in FY2022, #51 in FY2023 and not on the FY2025 list; down 22 since FY2023.
74	On Assignment, Inc. Through ECS Federal, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$4,514,872	0.2%	Rank history: #26 in FY2021, #14 in FY2022, #17 in FY2023 and not on the FY2025 list; down 57 since FY2023.
75	Piasecki Aircraft Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$4,471,022	0.2%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
76	Advanced Technology International	$4,108,763	0.2%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2025; new.
77	Amentum Services, Inc. Through Centra Technology, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$4,046,994	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
78	Radiabeam Technologies, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,970,732	0.1%	Rank history: not on the FY2021–FY2022 lists, #72 in FY2023 and #71 in FY2025; down 6 since FY2023.
79	L3Harris Technologies, Inc. 7 awardees, including Jariet Technologies, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,813,704	0.1%	Rank history: #10 in FY2021, #20 in FY2022, #55 in FY2023 and not on the FY2025 list; down 24 since FY2023.
80	Rutgers, the State University Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$3,703,233	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, not on the FY2023 list and #98 in FY2025; up 145 since FY2023.
81	Voreas Laboratories, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,574,226	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 147 since FY2023.
82	Vanderbilt University Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 611310 Colleges, Universities, and Professional Schools	$3,557,407	0.1%	Rank history: not on the FY2021–FY2023 lists and #46 in FY2025; new.
83	Smart Information Flow Technologies LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,530,920	0.1%	Rank history: #51 in FY2021, #85 in FY2022, not on the FY2023 list and #79 in FY2025; up 30 since FY2023.
84	Radiance Technologies, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,524,234	0.1%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2025; new.
85	Mantech SRS Technologies, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541690 Other Scientific and Technical Consulting Services	$3,479,240	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
86	Physical Sciences Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541714 Research and Development in Biotechnology (except Nanobiotechnology)	$3,477,456	0.1%	Rank history: #41 in FY2021, #31 in FY2022, #32 in FY2023 and #66 in FY2025; down 54 since FY2023.
87	Act1 Federal LLC Top NAICS codes 541330 Engineering Services	$3,427,680	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2025 list; up 4 since FY2023.
88	KBR Wyle Services LLC 2 awardees Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,330,221	0.1%	Rank history: not on the FY2021–FY2023 lists and #75 in FY2025; new.
89	Nightwing Intelligence Solutions, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,299,308	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
90	Trusted Science and Technology, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,192,285	0.1%	Rank history: not on the FY2021 list, #97 in FY2022, not on the FY2023 list and not on the FY2025 list; up 86 since FY2023.
91	Northstar Earth & Space Systems, Inc.	$3,154,072	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; new.
92	Twinleaf LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,150,932	0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2025 list; up 4 since FY2023.
93	Anduril Industries, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,095,175	0.1%	Rank history: not on the FY2021–FY2023 lists and #45 in FY2025; new.
94	Greensight Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,037,164	0.1%	Rank history: not on the FY2021–FY2023 lists and #86 in FY2025; up 164 since FY2023.
95	XUV Lasers, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,000,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2025; new.
96	The Ultran Group, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$2,999,572	0.1%	Rank history: #89 in FY2021, not on the FY2022–FY2023 lists and not on the FY2025 list; returned.
97	Bluerisc Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 541512 Computer Systems Design Services	$2,993,919	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 17 since FY2023.
98	California Institute of Technology Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$2,965,091	0.1%	Rank history: not on the FY2021–FY2023 lists and #30 in FY2025; new.
99	Beam Engineering for Advanced Measurements Co. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$2,938,816	0.1%	Rank history: not on the FY2021–FY2023 lists and not on the FY2025 list; up 142 since FY2023.
100	Apogee Research LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$2,936,072	0.1%	Rank history: #34 in FY2021, #71 in FY2022, #41 in FY2023 and #68 in FY2025; down 59 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 $2.73 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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