Top 100 Defense Counterintelligence and Security Agency Contractors, Jul 2025–Jun 2026

Name: Top 100 Defense Counterintelligence and Security Agency Contractors, Jul 2025–Jun 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Agency page on GovTribe

The top 10 won 70% of Defense Counterintelligence and Security Agency contract dollars from July 2025 through June 2026

Contract obligations: $1,120,263,513 Net of deobligations, by the Defense Counterintelligence and Security Agency and its offices
Contractors: 185 Parent companies with an obligation
Largest contractor: CACI International Inc. $220 million, 19.1% of obligations
Data as of: Oct 19, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	CACI International Inc. Through Caci, Inc. - Federal Top NAICS codes 561611 Investigation and Personal Background Check Services	$220,147,592	19.1%	Rank history: #1 in FY2021, #3 in FY2022, #2 in FY2023, #1 in FY2024 and #2 in FY2025; up 1 since Jul 2024–Jun 2025.
2	Peraton Risk Decision Inc. Top NAICS codes 561611 Investigation and Personal Background Check Services	$217,374,394	18.9%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #1 in FY2025; down 1 since Jul 2024–Jun 2025.
3	Arctic Slope Regional Corporation 4 awardees, including Agile Decision Sciences, LLC, Asrc Federal Administrative Services, LLC and Asrc Federal Professional Services, LLC Top NAICS codes 541513 Computer Facilities Management Services 561611 Investigation and Personal Background Check Services	$123,013,012	10.7%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #5 in FY2024 and #4 in FY2025; up 2 since Jul 2024–Jun 2025.
4	Consortium Management Group, Inc.	$99,855,443	8.7%	Rank history: not on the FY2021–FY2023 lists, #7 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
5	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers 513210 Software Publishers 541519 Other Computer Related Services	$28,427,088	2.5%	Rank history: #10 in FY2021, #7 in FY2022, #4 in FY2023, #9 in FY2024 and #5 in FY2025; up 2 since Jul 2024–Jun 2025.
6	Iworks Corp Top NAICS codes 561611 Investigation and Personal Background Check Services 541611 Administrative Management and General Management Consulting Services	$27,879,167	2.4%	Rank history: #11 in FY2021, #13 in FY2022, #18 in FY2023, #15 in FY2024 and #8 in FY2025; up 12 since Jul 2024–Jun 2025.
7	Omni Fed LLC Top NAICS codes 541511 Custom Computer Programming Services	$27,603,965	2.4%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 14 since Jul 2024–Jun 2025.
8	Huntington Ingalls Industries, Inc. 2 awardees, including Enlighten It Consulting LLC Top NAICS codes 541511 Custom Computer Programming Services	$24,523,788	2.1%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #12 in FY2025; up 27 since Jul 2024–Jun 2025.
9	The Prospective Group, LLC Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$22,207,815	1.9%	Rank history: not on the FY2021 list, #37 in FY2022, #14 in FY2023, #10 in FY2024 and #21 in FY2025; up 5 since Jul 2024–Jun 2025.
10	Amazon Web Services, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services	$19,708,200	1.7%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #7 in FY2025; up 1 since Jul 2024–Jun 2025.
11	Kpmg LLP Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$18,081,966	1.6%	Rank history: #6 in FY2021, #5 in FY2022, #6 in FY2023, #8 in FY2024 and #13 in FY2025; down 3 since Jul 2024–Jun 2025.
12	Swish Data Corporation Top NAICS codes 541519 Other Computer Related Services	$11,583,184	1.0%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Jul 2024–Jun 2025.
13	Minburn Technology Group, LLC Top NAICS codes 511210 Software Publishers	$11,491,706	1.0%	Rank history: #23 in FY2021, #24 in FY2022, #33 in FY2023, #23 in FY2024 and #14 in FY2025; up 3 since Jul 2024–Jun 2025.
14	Frontier Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$10,821,624	0.9%	Rank history: #24 in FY2021, #42 in FY2022, #37 in FY2023, #34 in FY2024 and #19 in FY2025; up 19 since Jul 2024–Jun 2025.
15	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541211 Offices of Certified Public Accountants	$10,773,753	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
16	Palantir Technologies Inc. Top NAICS codes 513210 Software Publishers	$10,500,130	0.9%	Rank history: not on the FY2021–FY2022 lists, #63 in FY2023, #30 in FY2024 and #16 in FY2025; up 7 since Jul 2024–Jun 2025.
17	ICF International Inc. Through ICF Incorporated, L.L.C. Top NAICS codes 541511 Custom Computer Programming Services	$10,101,139	0.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
18	Cherokee Insights LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$9,335,671	0.8%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023, #12 in FY2024 and #10 in FY2025; down 8 since Jul 2024–Jun 2025.
19	Nana Regional Corporation, Inc. Through Affigent, LLC Top NAICS codes 541519 Other Computer Related Services	$8,050,968	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
20	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 541612 Human Resources Consulting Services 541511 Custom Computer Programming Services	$7,675,440	0.7%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 66 since Jul 2024–Jun 2025.
21	Countertrade Products, Inc. Top NAICS codes 541519 Other Computer Related Services	$7,416,181	0.6%	Rank history: not on the FY2021 list, #21 in FY2022, #26 in FY2023, #31 in FY2024 and #25 in FY2025; up 10 since Jul 2024–Jun 2025.
22	A3 Consulting Services Inc. Through A3 Consulting LLC Top NAICS codes 541512 Computer Systems Design Services 336611 Ship Building and Repairing	$7,088,503	0.6%	Rank history: not on the FY2021–FY2023 lists, #22 in FY2024 and #20 in FY2025; up 5 since Jul 2024–Jun 2025.
23	Thinktek LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 336611 Ship Building and Repairing	$6,519,940	0.6%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; up 33 since Jul 2024–Jun 2025.
24	Lexisnexis Special Services Inc 2 awardees, including Relx Inc. Top NAICS codes 561450 Credit Bureaus 519290 Web Search Portals and All Other Information Services 511120 Periodical Publishers	$6,384,678	0.6%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #22 in FY2025; up 2 since Jul 2024–Jun 2025.
25	Akamai Intelligence LLC Top NAICS codes 561621 Security Systems Services (except Locksmiths)	$6,362,525	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26	International Business Machines Corporation Top NAICS codes 541511 Custom Computer Programming Services	$6,300,525	0.5%	Rank history: #25 in FY2021, #23 in FY2022, #31 in FY2023, #38 in FY2024 and #24 in FY2025; up 2 since Jul 2024–Jun 2025.
27	Rockwood Company LLC Top NAICS codes 541330 Engineering Services	$5,907,512	0.5%	Rank history: #42 in FY2021, #30 in FY2022, #46 in FY2023, #67 in FY2024 and #54 in FY2025; up 43 since Jul 2024–Jun 2025.
28	Goldbelt Nighthawk, LLC Top NAICS codes 541519 Other Computer Related Services	$5,738,018	0.5%	Rank history: #30 in FY2021, #28 in FY2022, #52 in FY2023, #29 in FY2024 and #58 in FY2025; up 16 since Jul 2024–Jun 2025.
29	Ho-Chunk, Inc. Through Flatwater Professional Services Company Top NAICS codes 238390 Other Building Finishing Contractors	$5,633,827	0.5%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
30	Salient Federal-Sgis Inc Top NAICS codes 541519 Other Computer Related Services	$5,611,423	0.5%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #46 in FY2025; down 10 since Jul 2024–Jun 2025.
31	DNI Emerging Technologies, LLC Top NAICS codes 541519 Other Computer Related Services	$5,601,559	0.5%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; down 14 since Jul 2024–Jun 2025.
32	Regency Consulting Inc Top NAICS codes 541519 Other Computer Related Services	$5,511,565	0.5%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
33	PCI Productions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$5,494,738	0.5%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #31 in FY2025; up 10 since Jul 2024–Jun 2025.
34	Powertrain, Inc. Top NAICS codes 541519 Other Computer Related Services	$5,209,726	0.5%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; up 2 since Jul 2024–Jun 2025.
35	Global Connections To Employment, Inc. Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$5,067,257	0.4%	Rank history: #15 in FY2021, #14 in FY2022, #23 in FY2023, #11 in FY2024 and #30 in FY2025; down 20 since Jul 2024–Jun 2025.
36	Cacg, LLC Top NAICS codes 541512 Computer Systems Design Services	$5,013,788	0.4%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023, #26 in FY2024 and #40 in FY2025; down 2 since Jul 2024–Jun 2025.
37	Dell Technologies Inc. Through Dell Federal Systems L.P Top NAICS codes 513210 Software Publishers	$4,491,439	0.4%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Jul 2024–Jun 2025.
38	Moody'S Corporation Through Moody's Analytics, Inc. Top NAICS codes 513210 Software Publishers	$4,431,000	0.4%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; up 11 since Jul 2024–Jun 2025.
39	Keystone Vocational Services Inc. Top NAICS codes 561499 All Other Business Support Services	$4,039,773	0.4%	Rank history: #33 in FY2021, #38 in FY2022, #40 in FY2023, #47 in FY2024 and #45 in FY2025; up 8 since Jul 2024–Jun 2025.
40	Technical and Project Engineering, LLC Top NAICS codes 336611 Ship Building and Repairing	$3,901,657	0.3%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Jul 2024–Jun 2025.
41	Consolidated Nuclear Security, LLC Top NAICS codes 561210 Facilities Support Services	$3,465,347	0.3%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2023, not on the FY2024 list and #61 in FY2025; up 30 since Jul 2024–Jun 2025.
42	R3 Government Solutions, LLC Top NAICS codes 541612 Human Resources Consulting Services	$3,089,087	0.3%	Rank history: #47 in FY2021, #36 in FY2022, #42 in FY2023, #50 in FY2024 and #43 in FY2025; up 13 since Jul 2024–Jun 2025.
43	Verato, Inc. Top NAICS codes 561450 Credit Bureaus 541219 Other Accounting Services	$3,061,599	0.3%	Rank history: #8 in FY2021, #11 in FY2022, #10 in FY2023, #18 in FY2024 and #70 in FY2025; up 10 since Jul 2024–Jun 2025.
44	N2Ia Technologies LLC Top NAICS codes 541512 Computer Systems Design Services	$2,976,110	0.3%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #44 in FY2025; down 5 since Jul 2024–Jun 2025.
45	Pherson Associates, LLC Top NAICS codes 611430 Professional and Management Development Training	$2,891,664	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #84 in FY2023, #62 in FY2024 and #50 in FY2025; up 5 since Jul 2024–Jun 2025.
46	National Student Clearinghouse Top NAICS codes 519290 Web Search Portals and All Other Information Services	$2,601,730	0.2%	Rank history: #63 in FY2021, #27 in FY2022, #32 in FY2023, #37 in FY2024 and #32 in FY2025; down 5 since Jul 2024–Jun 2025.
47	Govcio, LLC Top NAICS codes 541519 Other Computer Related Services	$2,424,657	0.2%	Rank history: not on the FY2021 list, #20 in FY2022, not on the FY2023 list, #41 in FY2024 and #37 in FY2025; down 5 since Jul 2024–Jun 2025.
48	Fedtec Ventures LLC Top NAICS codes 541519 Other Computer Related Services	$2,336,742	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
49	Bloomberg Finance LP Top NAICS codes 519190 All Other Information Services	$2,313,938	0.2%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #52 in FY2025; up 5 since Jul 2024–Jun 2025.
50	OCT Consulting LLC Top NAICS codes 541330 Engineering Services 336611 Ship Building and Repairing	$2,163,479	0.2%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #36 in FY2025; down 13 since Jul 2024–Jun 2025.
51	Island Empire Technology Systems LLC Top NAICS codes 611430 Professional and Management Development Training	$2,162,377	0.2%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023, #55 in FY2024 and #62 in FY2025; up 18 since Jul 2024–Jun 2025.
52	Revolutional, LLC Top NAICS codes 541511 Custom Computer Programming Services	$2,005,596	0.2%	Rank history: #37 in FY2021, #41 in FY2022, #47 in FY2023, #70 in FY2024 and #48 in FY2025; up 6 since Jul 2024–Jun 2025.
53	Salient Crgt, Inc. Top NAICS codes 541512 Computer Systems Design Services	$1,946,259	0.2%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #9 in FY2025; down 44 since Jul 2024–Jun 2025.
54	Alliance Technology Group, LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$1,873,508	0.2%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Jul 2024–Jun 2025.
55	California Institute of Technology Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$1,866,400	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
56	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$1,693,620	0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #60 in FY2023, #57 in FY2024 and #90 in FY2025; up 7 since Jul 2024–Jun 2025.
57	Techniko LLC Top NAICS codes 541330 Engineering Services	$1,651,802	0.1%	Rank history: not on the FY2021–FY2023 lists, #71 in FY2024 and #60 in FY2025; up 9 since Jul 2024–Jun 2025.
58	University of Maryland, College Park Top NAICS codes 541720 Research and Development in the Social Sciences and Humanities	$1,615,956	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	Suvi Global Services LLC Top NAICS codes 541512 Computer Systems Design Services	$1,606,040	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
60	Manta Group LLC Top NAICS codes 541330 Engineering Services	$1,592,283	0.1%	Rank history: #36 in FY2021, #34 in FY2022, #41 in FY2023, #48 in FY2024 and #39 in FY2025; down 8 since Jul 2024–Jun 2025.
61	Goodwill Commercial Services, Inc. Top NAICS codes 561720 Janitorial Services	$1,560,520	0.1%	Rank history: #45 in FY2021, #54 in FY2022, #55 in FY2023, #100 in FY2024 and #96 in FY2025; up 40 since Jul 2024–Jun 2025.
62	Center for Creative Leadership Top NAICS codes 611430 Professional and Management Development Training	$1,538,708	0.1%	Rank history: #61 in FY2021, #82 in FY2022, #57 in FY2023, #60 in FY2024 and #65 in FY2025; up 13 since Jul 2024–Jun 2025.
63	Software Information Resource Corp Top NAICS codes 541519 Other Computer Related Services	$1,529,073	0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2023, #56 in FY2024 and #51 in FY2025; down 1 since Jul 2024–Jun 2025.
64	Enlightened, Inc. Top NAICS codes 541512 Computer Systems Design Services	$1,503,112	0.1%	Rank history: #31 in FY2021, #31 in FY2022, #38 in FY2023, #42 in FY2024 and #47 in FY2025; down 3 since Jul 2024–Jun 2025.
65	Equifax Workforce Solutions LLC Top NAICS codes 561611 Investigation and Personal Background Check Services	$1,457,365	0.1%	Rank history: not on the FY2021–FY2023 lists, #76 in FY2024 and #55 in FY2025; up 2 since Jul 2024–Jun 2025.
66	Nextstep Technology Inc. Top NAICS codes 541330 Engineering Services	$1,417,675	0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, #92 in FY2024 and #66 in FY2025; up 7 since Jul 2024–Jun 2025.
67	Strategic Alliance Business Group LLC Top NAICS codes 541330 Engineering Services	$1,411,214	0.1%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #80 in FY2025; down 2 since Jul 2024–Jun 2025.
68	Feith Systems & Software, Inc. Top NAICS codes 541512 Computer Systems Design Services	$1,408,066	0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #64 in FY2025; up 6 since Jul 2024–Jun 2025.
69	Team Carney, Inc. Top NAICS codes 611430 Professional and Management Development Training	$1,362,011	0.1%	Rank history: #27 in FY2021, #29 in FY2022, #24 in FY2023, #17 in FY2024 and #15 in FY2025; down 56 since Jul 2024–Jun 2025.
70	Tpg-Z LLC Top NAICS codes 336611 Ship Building and Repairing	$1,314,872	0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Jul 2024–Jun 2025.
71	Spathe Systems LLC Top NAICS codes 541511 Custom Computer Programming Services	$1,290,860	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Morningstar Inc. Through Pitchbook Data Inc. Top NAICS codes 513210 Software Publishers	$1,288,380	0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 19 since Jul 2024–Jun 2025.
73	Heartland Energy Partners LLC Top NAICS codes 541330 Engineering Services	$1,116,132	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; up 4 since Jul 2024–Jun 2025.
74	Echelon Services, LLC Top NAICS codes 561990 All Other Support Services	$1,082,372	0.1%	Rank history: not on the FY2021 list, #6 in FY2022, #7 in FY2023, #14 in FY2024 and #26 in FY2025; down 50 since Jul 2024–Jun 2025.
75	At&T Inc. 2 awardees, including Att Mobility LLC and At&T Enterprises, LLC Top NAICS codes 517112 Wireless Telecommunications Carriers (except Satellite) 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite)	$986,639	0.1%	Rank history: #44 in FY2021, #52 in FY2022, #53 in FY2023, #65 in FY2024 and #72 in FY2025; up 5 since Jul 2024–Jun 2025.
76	FCN, Inc. Top NAICS codes 541519 Other Computer Related Services	$983,828	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Everfox LLC Top NAICS codes 541519 Other Computer Related Services	$926,059	0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 6 since Jul 2024–Jun 2025.
78	Thomas & Reed LLC Top NAICS codes 621330 Offices of Mental Health Practitioners (except Physicians)	$917,736	0.1%	Rank history: not on the FY2021 list, #73 in FY2022, not on the FY2023 list, #85 in FY2024 and #93 in FY2025; up 18 since Jul 2024–Jun 2025.
79	Gartner, Inc. Top NAICS codes 541519 Other Computer Related Services	$897,039	0.1%	Rank history: not on the FY2021–FY2022 lists, #70 in FY2023, #59 in FY2024 and #76 in FY2025; up 10 since Jul 2024–Jun 2025.
80	Cherokee Nation Through Cherokee Insights LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$826,229	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
81	Iron Mountain Information Management LLC Top NAICS codes 493110 General Warehousing and Storage	$810,228	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
82	One Federal Solution Corporation Top NAICS codes 336611 Ship Building and Repairing	$771,559	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; down 10 since Jul 2024–Jun 2025.
83	Intecon LLC Top NAICS codes 541330 Engineering Services	$768,053	0.1%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #82 in FY2025; down 23 since Jul 2024–Jun 2025.
84	Sterling Computers Corporation Top NAICS codes 334111 Electronic Computer Manufacturing	$719,201	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023, #81 in FY2024 and #68 in FY2025; down 6 since Jul 2024–Jun 2025.
85	August Schell Enterprises, Inc. Top NAICS codes 541519 Other Computer Related Services	$664,582	0.1%	Rank history: #71 in FY2021, #71 in FY2022, #75 in FY2023, #95 in FY2024 and not on the FY2025 list; up 25 since Jul 2024–Jun 2025.
86	Mckinsey & Company, Inc. Washington D.c. Top NAICS codes 541519 Other Computer Related Services	$650,362	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87	Network Runners Inc. Top NAICS codes 541330 Engineering Services	$630,800	0.1%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and #79 in FY2025; up 11 since Jul 2024–Jun 2025.
88	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)	$617,441	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
89	Enterprise Technology Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services	$613,986	0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 6 since Jul 2024–Jun 2025.
90	Aware Inc. Top NAICS codes 541519 Other Computer Related Services	$599,078	0.1%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in Jul 2024–Jun 2025.
91	A3 Missions, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$585,374	0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; up 9 since Jul 2024–Jun 2025.
92	NCS Pearson, Inc. Top NAICS codes 611710 Educational Support Services	$555,692	<0.1%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and not on the FY2025 list; up 25 since Jul 2024–Jun 2025.
93	Creative It Solutions LLC Top NAICS codes 541330 Engineering Services	$542,439	<0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #77 in FY2025; down 53 since Jul 2024–Jun 2025.
94	Norseman Inc. Top NAICS codes 541519 Other Computer Related Services	$536,843	<0.1%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; up 55 since Jul 2024–Jun 2025.
95	National Law Enforcement Telecommunication System (Nlets), Inc. Top NAICS codes 519290 Web Search Portals and All Other Information Services	$498,989	<0.1%	Rank history: #90 in FY2021, #94 in FY2022, not on the FY2023–FY2024 lists and #100 in FY2025; up 9 since Jul 2024–Jun 2025.
96	Blue TECH Inc. Top NAICS codes 541519 Other Computer Related Services	$477,403	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, #90 in FY2024 and not on the FY2025 list; up 24 since Jul 2024–Jun 2025.
97	Scribedoc.com, Inc. Top NAICS codes 336611 Ship Building and Repairing	$461,222	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
98	Four LLC Top NAICS codes 541519 Other Computer Related Services	$453,160	<0.1%	Rank history: #60 in FY2021, #70 in FY2022, #73 in FY2023, #78 in FY2024 and #98 in FY2025; down 11 since Jul 2024–Jun 2025.
99	Halvik LLC Top NAICS codes 541330 Engineering Services	$441,236	<0.1%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #84 in FY2025; down 14 since Jul 2024–Jun 2025.
100	Bestpass, Inc. Top NAICS codes 488490 Other Support Activities for Road Transportation	$437,510	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 13 since Jul 2024–Jun 2025.

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100 of 185 contractors listed here. See the rest on GovTribe.

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 $1.15 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 Defense Counterintelligence and Security Agency contractors in Jul 2025–Jun 2026?

1. CACI International Inc. ($220M), 2. Peraton Risk Decision Inc. ($217M), 3. Arctic Slope Regional Corporation ($123M), 4. Consortium Management Group, Inc. ($99.9M), 5. Carahsoft Technology Corp ($28.4M), 6. Iworks Corp ($27.9M), 7. Omni Fed LLC ($27.6M), 8. Huntington Ingalls Industries, Inc. ($24.5M), 9. The Prospective Group, LLC ($22.2M), 10. Amazon Web Services, Inc. ($19.7M).

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