Top 100 National Science Foundation Contractors, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through Leidos, Inc. Top NAICS codes 561210 Facilities Support Services	$216,868,724	36.2%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$69,266,952	11.5%	Rank history: #2 in FY2021, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2021.
3	Battelle Memorial Institute Top NAICS codes 561210 Facilities Support Services	$48,818,500	8.1%	Rank history: #3 in FY2021, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2021.
4	By Light Professional It Services LLC Top NAICS codes 541512 Computer Systems Design Services	$14,585,320	2.4%	Rank history: #11 in FY2021, #4 in FY2023, #4 in FY2024 and #6 in FY2025; up 7 since FY2021.
5	Synectics for Management Decisions, Inc. Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$9,573,952	1.6%	Rank history: #6 in FY2021, #5 in FY2023, #8 in FY2024 and #5 in FY2025; up 1 since FY2021.
6	Nippon Telegraph and Telephone Corporation Through NTT Data Services Federal Government, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$9,439,994	1.6%	Rank history: #35 in FY2021, #26 in FY2023, #90 in FY2024 and not on the FY2025 list; up 29 since FY2021.
7	Research Triangle Institute Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$8,697,088	1.5%	Rank history: #10 in FY2021, #6 in FY2023, #5 in FY2024 and #17 in FY2025; up 3 since FY2021.
8	Accenture Federal Services LLC 2 awardees Top NAICS codes 541512 Computer Systems Design Services	$7,868,259	1.3%	Rank history: #7 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
9	ICF International, Inc. 2 awardees, including ICF Incorporated, L.L.C. and ICF Macro Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541720 Research and Development in the Social Sciences and Humanities	$6,954,258	1.2%	Rank history: #16 in FY2021, #13 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
10	Riva Solutions Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 561210 Facilities Support Services 561499 All Other Business Support Services	$6,809,803	1.1%	Rank history: #30 in FY2021 and not on the FY2023–FY2025 lists; up 20 since FY2021.
11	Institute for Defense Analyses Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$6,388,768	1.1%	Rank history: #12 in FY2021, #8 in FY2023, #13 in FY2024 and #18 in FY2025; up 1 since FY2021.
12	Westat, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$6,386,071	1.1%	Rank history: #9 in FY2021, #55 in FY2023, not on the FY2024 list and #15 in FY2025; down 3 since FY2021.
13	Federal Management Partners, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 611430 Professional and Management Development Training	$5,602,596	0.9%	Rank history: #15 in FY2021, #7 in FY2023, #10 in FY2024 and #24 in FY2025; up 2 since FY2021.
14	Air Center Helicopters, Inc. Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation	$5,491,023	0.9%	Rank history: #8 in FY2021, #12 in FY2023, #68 in FY2024 and not on the FY2025 list; down 6 since FY2021.
15	Kenn Borek Air Ltd Top NAICS codes 481219 Other Nonscheduled Air Transportation	$4,793,167	0.8%	Rank history: #20 in FY2021, #15 in FY2023, #24 in FY2024 and #12 in FY2025; up 5 since FY2021.
16	Creative Business Solutions, Inc. Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$4,512,798	0.8%	Rank history: #27 in FY2021, #17 in FY2023, #21 in FY2024 and #31 in FY2025; up 11 since FY2021.
17	Windsor Group LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$4,337,729	0.7%	Rank history: #22 in FY2021, #44 in FY2023, #40 in FY2024 and #91 in FY2025; up 5 since FY2021.
18	Criterion Systems, L.L.C. Top NAICS codes 541513 Computer Facilities Management Services	$4,200,000	0.7%	Rank history: #17 in FY2021, #19 in FY2023, #23 in FY2024 and #19 in FY2025; down 1 since FY2021.
19	Penbay Technology Group LLC Top NAICS codes 541512 Computer Systems Design Services	$4,030,580	0.7%	Rank history: not on the FY2021 list, #31 in FY2023, #22 in FY2024 and #29 in FY2025; new.
20	Strategix Management LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$3,610,476	0.6%	Rank history: #25 in FY2021, #22 in FY2023, #29 in FY2024 and #37 in FY2025; up 5 since FY2021.
21	Agility Technologies Inc. Top NAICS codes 541511 Custom Computer Programming Services 541512 Computer Systems Design Services 541519 Other Computer Related Services	$3,555,553	0.6%	Rank history: #14 in FY2021, #27 in FY2023, #42 in FY2024 and #65 in FY2025; down 7 since FY2021.
22	Anika Systems Incorporated Top NAICS codes 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$3,458,080	0.6%	Rank history: #23 in FY2021, #28 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
23	HP Enterprise Services LLC Through Peraton Services & Solutions Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$3,440,242	0.6%	Rank history: #53 in FY2021 and not on the FY2023–FY2025 lists; up 30 since FY2021.
24	Thundercat Technology, LLC Top NAICS codes 541519 Other Computer Related Services	$3,195,336	0.5%	Rank history: #40 in FY2021 and not on the FY2023–FY2025 lists; up 16 since FY2021.
25	Mathematica Inc 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541720 Research and Development in the Social Sciences and Humanities	$3,168,338	0.5%	Rank history: #18 in FY2021, #30 in FY2023, #15 in FY2024 and not on the FY2025 list; down 7 since FY2021.
26	Civicactions, Inc. Top NAICS codes 541519 Other Computer Related Services	$3,034,032	0.5%	Rank history: #13 in FY2021, #14 in FY2023, #18 in FY2024 and #9 in FY2025; down 13 since FY2021.
27	Hacks / Hackers Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$2,999,995	0.5%	Rank history: #78 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2021.
28	VMD Systems Integrators, LLC Top NAICS codes 541512 Computer Systems Design Services	$2,920,143	0.5%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; up 19 since FY2021.
29	Kpmg L.L.P. 2 awardees Top NAICS codes 541211 Offices of Certified Public Accountants	$2,798,604	0.5%	Rank history: #32 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
30	Digital Promise Global Top NAICS codes 611710 Educational Support Services	$2,695,442	0.4%	Rank history: not on the FY2021 list, #66 in FY2023, #63 in FY2024 and not on the FY2025 list; new.
31	Rividium Inc. Top NAICS codes 541612 Human Resources Consulting Services	$2,682,615	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
32	EDJ Associates, Inc. Top NAICS codes 561920 Convention and Trade Show Organizers	$2,651,550	0.4%	Rank history: #36 in FY2021, #38 in FY2023, #30 in FY2024 and #54 in FY2025; up 4 since FY2021.
33	Meedan, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$2,459,155	0.4%	Rank history: #77 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2021.
34	Professional Management Consulting Services LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$2,419,570	0.4%	Rank history: #34 in FY2021, #33 in FY2023, #25 in FY2024 and #100 in FY2025; unchanged since FY2021.
35	EFK Group, Llc. Top NAICS codes 541613 Marketing Consulting Services	$2,355,611	0.4%	Rank history: #43 in FY2021, #46 in FY2023, #47 in FY2024 and #74 in FY2025; up 8 since FY2021.
36	Lynker Corporation Top NAICS codes 541511 Custom Computer Programming Services	$2,314,975	0.4%	Rank history: #26 in FY2021, #39 in FY2023, #19 in FY2024 and #38 in FY2025; down 10 since FY2021.
37	National Opinion Research Center Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$2,148,394	0.4%	Rank history: #92 in FY2021, #10 in FY2023, #11 in FY2024 and #20 in FY2025; up 55 since FY2021.
38	CMA Technology Inc. Top NAICS codes 541519 Other Computer Related Services	$2,141,841	0.4%	Rank history: #33 in FY2021, #20 in FY2023, not on the FY2024 list and #59 in FY2025; down 5 since FY2021.
39	CTW Solutions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,990,257	0.3%	Rank history: #64 in FY2021, #59 in FY2023, #50 in FY2024 and not on the FY2025 list; up 25 since FY2021.
40	Davis Management Group Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,846,954	0.3%	Rank history: not on the FY2021 list, #45 in FY2023, #73 in FY2024 and not on the FY2025 list; up 82 since FY2021.
41	The Building People LLC Top NAICS codes 561210 Facilities Support Services 541512 Computer Systems Design Services	$1,783,623	0.3%	Rank history: #49 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
42	Koniag Management Solutions LLC Top NAICS codes 561210 Facilities Support Services 541519 Other Computer Related Services	$1,584,240	0.3%	Rank history: not on the FY2021 list, #67 in FY2023 and not on the FY2024–FY2025 lists; up 59 since FY2021.
43	REI Systems Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$1,567,925	0.3%	Rank history: not on the FY2021 list, #58 in FY2023, #45 in FY2024 and #51 in FY2025; new.
44	PC Connection Inc. Through Govconnection Inc. Top NAICS codes 541519 Other Computer Related Services	$1,537,502	0.3%	Rank history: #50 in FY2021, #74 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
45	Dawnbreaker Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,519,991	0.3%	Rank history: #38 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2021.
46	GBS Dakota IT, LLC Top NAICS codes 541512 Computer Systems Design Services	$1,481,344	0.2%	Rank history: not on the FY2021 list, #50 in FY2023, #61 in FY2024 and not on the FY2025 list; new.
47	Insight Policy Research, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,467,412	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	Usgbf NSF LLC Top NAICS codes 531190 Lessors of Other Real Estate Property 561990 All Other Support Services	$1,429,013	0.2%	Rank history: #37 in FY2021, #60 in FY2023, #60 in FY2024 and not on the FY2025 list; down 11 since FY2021.
49	Lancer Information Solutions, LLC Top NAICS codes 541519 Other Computer Related Services	$1,417,283	0.2%	Rank history: not on the FY2021 list, #42 in FY2023, #14 in FY2024 and not on the FY2025 list; up 137 since FY2021.
50	Sterling Computers Corporation Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services	$1,408,689	0.2%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; up 15 since FY2021.
51	Bahfed Corp Top NAICS codes 541519 Other Computer Related Services	$1,374,837	0.2%	Rank history: #58 in FY2021, #82 in FY2023, not on the FY2024 list and #99 in FY2025; up 7 since FY2021.
52	Customer Value Partners, LLC Through Atlas Research LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,368,916	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
53	Prime Response, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 561210 Facilities Support Services	$1,363,949	0.2%	Rank history: #59 in FY2021, #87 in FY2023, #72 in FY2024 and not on the FY2025 list; up 6 since FY2021.
54	Pueo Business Solutions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,327,251	0.2%	Rank history: not on the FY2021 list, #37 in FY2023 and not on the FY2024–FY2025 lists; new.
55	Guidehouse Inc. Top NAICS codes 541219 Other Accounting Services	$1,311,713	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
56	OZ Architecture Inc. Top NAICS codes 541310 Architectural Services	$1,240,959	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
57	Integrity Management Services Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,230,310	0.2%	Rank history: not on the FY2021 list, #18 in FY2023, #66 in FY2024 and #33 in FY2025; new.
58	Sri International Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$1,213,387	0.2%	Rank history: #21 in FY2021, #78 in FY2023, #41 in FY2024 and #26 in FY2025; down 37 since FY2021.
59	Fedwriters, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,193,417	0.2%	Rank history: #51 in FY2021, #56 in FY2023, #48 in FY2024 and #36 in FY2025; down 8 since FY2021.
60	Digital Science & Research Solutions Inc. Top NAICS codes 511210 Software Publishers	$1,114,650	0.2%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
61	Metaphase Consulting LLC Top NAICS codes 541519 Other Computer Related Services	$1,103,836	0.2%	Rank history: not on the FY2021 list, #34 in FY2023, #36 in FY2024 and not on the FY2025 list; up 68 since FY2021.
62	OLH Technical Services, LLC Top NAICS codes 541512 Computer Systems Design Services	$1,098,867	0.2%	Rank history: not on the FY2021 list, #89 in FY2023 and not on the FY2024–FY2025 lists; new.
63	Agile Business Concepts LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,086,628	0.2%	Rank history: not on the FY2021 list, #84 in FY2023, not on the FY2024 list and #87 in FY2025; up 68 since FY2021.
64	Sikich CPA LLC Top NAICS codes 541211 Offices of Certified Public Accountants	$1,078,205	0.2%	Rank history: #54 in FY2021, #93 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
65	Kardia Group LLC Top NAICS codes 611430 Professional and Management Development Training	$1,045,615	0.2%	Rank history: #83 in FY2021, #73 in FY2023, #77 in FY2024 and not on the FY2025 list; up 18 since FY2021.
66	Knowinnovation Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,045,250	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 37 since FY2021.
67	Dominion Resources Inc. Through Virginia Electric and Power Company Top NAICS codes 221122 Electric Power Distribution	$1,041,763	0.2%	Rank history: #52 in FY2021, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; down 15 since FY2021.
68	Red Carrot Inc. Top NAICS codes 541613 Marketing Consulting Services	$999,370	0.2%	Rank history: #73 in FY2021, #72 in FY2023, #51 in FY2024 and #63 in FY2025; up 5 since FY2021.
69	National Academy of Public Administration Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$997,863	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #86 in FY2024 and not on the FY2025 list; new.
70	Electrosoft Services, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$970,578	0.2%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
71	Ebsco Industries Inc. Top NAICS codes 511130 Book Publishers	$934,174	0.2%	Rank history: #61 in FY2021, #65 in FY2023, #57 in FY2024 and #83 in FY2025; down 10 since FY2021.
72	Raye It Consulting LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$923,094	0.2%	Rank history: #55 in FY2021, #85 in FY2023, #75 in FY2024 and #67 in FY2025; down 17 since FY2021.
73	Software Information Resource Corp. Top NAICS codes 541519 Other Computer Related Services	$919,489	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 122 since FY2021.
74	Amaze Technologies LLC Top NAICS codes 541330 Engineering Services	$908,236	0.2%	Rank history: not on the FY2021 list, #16 in FY2023, #26 in FY2024 and #60 in FY2025; new.
75	Ntouch-Bct Strategies LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$900,480	0.2%	Rank history: #31 in FY2021, #96 in FY2023 and not on the FY2024–FY2025 lists; down 44 since FY2021.
76	Enterprise Technology Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$885,798	0.1%	Rank history: #99 in FY2021, #83 in FY2023, #94 in FY2024 and #97 in FY2025; up 23 since FY2021.
77	Avantgarde LLC Top NAICS codes 541612 Human Resources Consulting Services	$885,562	0.1%	Rank history: #28 in FY2021 and not on the FY2023–FY2025 lists; down 49 since FY2021.
78	Goldbelt, Incorporated Through Goldbelt Hawk L.L.C. Top NAICS codes 541512 Computer Systems Design Services	$872,807	0.1%	Rank history: #68 in FY2021, #97 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
79	Kearney & Company, P.C. Top NAICS codes 541219 Other Accounting Services	$850,378	0.1%	Rank history: #57 in FY2021, #91 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2021.
80	Trigent Solutions Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$850,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Accessagility LLC Top NAICS codes 541519 Other Computer Related Services	$812,824	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 60 since FY2021.
82	Enquizit LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$801,916	0.1%	Rank history: #74 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
83	Trewon Technologies LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$784,197	0.1%	Rank history: #48 in FY2021 and not on the FY2023–FY2025 lists; down 35 since FY2021.
84	Four LLC Top NAICS codes 541519 Other Computer Related Services	$752,735	0.1%	Rank history: #41 in FY2021 and not on the FY2023–FY2025 lists; down 43 since FY2021.
85	International Business Machines Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$750,000	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #56 in FY2024 and #49 in FY2025; new.
86	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)	$749,963	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	At&T Inc. Through At&T Enterprises, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$749,946	0.1%	Rank history: not on the FY2021 list, #32 in FY2023 and not on the FY2024–FY2025 lists; new.
88	Michigan State University Top NAICS codes 611430 Professional and Management Development Training	$749,924	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Research In Motion Limited Through Blackberry Corp Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$747,652	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	The Chenega Corporation 2 awardees, including Chenega Reliable Services LLC and Chenega Worldwide Support, LLC Top NAICS codes 621111 Offices of Physicians (except Mental Health Specialists) 561210 Facilities Support Services	$745,330	0.1%	Rank history: #95 in FY2021, #75 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
91	Novowi LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$740,616	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	ZEN Strategics LLC Top NAICS codes 541511 Custom Computer Programming Services	$735,091	0.1%	Rank history: not on the FY2021 list, #77 in FY2023 and not on the FY2024–FY2025 lists; new.
93	Fcn, Inc. Top NAICS codes 541519 Other Computer Related Services	$685,617	0.1%	Rank history: #82 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
94	Distributed Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$682,748	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #82 in FY2025; up 60 since FY2021.
95	Heritage Interiors LLC Top NAICS codes 337127 Institutional Furniture Manufacturing	$665,092	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Global Biodiversity Information Facility Secretariat Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$650,000	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
97	Dynamic Systems Inc. Top NAICS codes 541519 Other Computer Related Services	$649,101	0.1%	Rank history: not on the FY2021 list, #79 in FY2023 and not on the FY2024–FY2025 lists; up 78 since FY2021.
98	Dakota Consulting Incorporated Top NAICS codes 541512 Computer Systems Design Services	$640,397	0.1%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; down 53 since FY2021.
99	TSC Management, LLC Top NAICS codes 561499 All Other Business Support Services	$631,688	0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #72 in FY2025; new.
100	Four Points Technology, L.L.C. Top NAICS codes 541519 Other Computer Related Services	$629,804	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 63 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 $600 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