Top 100 Department of State Contractors, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	General Dynamics Corporation 4 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$314,116,871	3.3%	Rank history: #2 in FY2021, #11 in FY2022, #4 in FY2023, #4 in FY2024 and #3 in FY2025; up 3 since Aug 2024–Jul 2025.
2	Guidehouse Inc. 6 awardees, including Peraton Inc. and Peraton Enterprise Solutions LLC Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541618 Other Management Consulting Services	$291,556,974	3.0%	Rank history: not on the FY2021–FY2023 lists, #18 in FY2024 and #21 in FY2025; up 21 since Aug 2024–Jul 2025.
3	BL Harbert International LLC 2 awardees, including Harden Architectural Security Products, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 541310 Architectural Services 332321 Metal Window and Door Manufacturing	$253,308,436	2.6%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and not on the FY2025 list; up 9 since Aug 2024–Jul 2025.
4	Inter-CON Security Systems Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$203,273,302	2.1%	Rank history: #12 in FY2021, #10 in FY2022, #12 in FY2023, #10 in FY2024 and #12 in FY2025; up 12 since Aug 2024–Jul 2025.
5	Accenture Federal Services LLC 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$195,533,696	2.0%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #9 in FY2025; up 3 since Aug 2024–Jul 2025.
6	Science Applications International Corporation Top NAICS codes 541512 Computer Systems Design Services	$193,147,068	2.0%	Rank history: #9 in FY2021, #7 in FY2022, #9 in FY2023, #5 in FY2024 and #10 in FY2025; down 1 since Aug 2024–Jul 2025.
7	Deloitte 2 awardees, including Deloitte Consulting LLP and Deloitte & Touche LLP Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services	$191,115,035	2.0%	Rank history: #18 in FY2021, #17 in FY2022, #14 in FY2023, #7 in FY2024 and #6 in FY2025; up 2 since Aug 2024–Jul 2025.
8	Citibank, N.A. Top NAICS codes 522110 Commercial Banking 513210 Software Publishers	$184,080,736	1.9%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top NAICS codes 541512 Computer Systems Design Services	$179,191,949	1.9%	Rank history: not on the FY2021 list, #94 in FY2022, not on the FY2023 list, #11 in FY2024 and #5 in FY2025; down 3 since Aug 2024–Jul 2025.
10	The Timken Company Through CGI Federal Inc. Top NAICS codes 541513 Computer Facilities Management Services 541519 Other Computer Related Services 561990 All Other Support Services	$175,615,115	1.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	Peckham Vocational Industries Inc. Top NAICS codes 561421 Telephone Answering Services	$172,473,537	1.8%	Rank history: #36 in FY2021, #32 in FY2022, #17 in FY2023, #8 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
12	Amentum Holdings, Inc. 6 awardees, including PAE Government Services, Inc., Dyncorp International LLC and Amentum Design and Facility Management Top NAICS codes 561210 Facilities Support Services 541618 Other Management Consulting Services 541513 Computer Facilities Management Services	$166,398,298	1.7%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #13 in FY2025; down 5 since Aug 2024–Jul 2025.
13	National Association Citibank Top NAICS codes 522110 Commercial Banking	$158,836,800	1.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14	Minburn Technology Group, LLC Top NAICS codes 541519 Other Computer Related Services 513210 Software Publishers	$152,354,461	1.6%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #16 in FY2025; up 1 since Aug 2024–Jul 2025.
15	Parsons Corporation 3 awardees, including Xator LLC, Incadence Strategic Solutions LLC and Parsons Government Services Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 561210 Facilities Support Services 541511 Custom Computer Programming Services	$149,706,728	1.6%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #1 in FY2025; down 13 since Aug 2024–Jul 2025.
16	BC Partners LLP 4 awardees, including Gardaworld Federal Services LLC, Gardaworld Federal and Aegis-Kk Security Top NAICS codes 561612 Security Guards and Patrol Services	$116,600,627	1.2%	Rank history: not on the FY2021 list, #87 in FY2022, #19 in FY2023, #15 in FY2024 and #14 in FY2025; down 3 since Aug 2024–Jul 2025.
17	LDRM LLC Top NAICS codes 541513 Computer Facilities Management Services	$115,014,948	1.2%	Rank history: #32 in FY2021, #26 in FY2022, #25 in FY2023, #23 in FY2024 and #19 in FY2025; up 5 since Aug 2024–Jul 2025.
18	Thundercat Technology LLC Top NAICS codes 541519 Other Computer Related Services 519290 Web Search Portals and All Other Information Services 334310 Audio and Video Equipment Manufacturing	$110,313,239	1.2%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #17 in FY2024 and #18 in FY2025; down 1 since Aug 2024–Jul 2025.
19	Koniag, Inc. 13 awardees, including Pacarctic, LLC, Koniag Emerging Technologies LLC and Koniag Data Solutions LLC Top NAICS codes 561210 Facilities Support Services 541511 Custom Computer Programming Services 541512 Computer Systems Design Services	$104,442,212	1.1%	Rank history: #24 in FY2021, #25 in FY2022, #13 in FY2023, not on the FY2024 list and #17 in FY2025; up 293 since Aug 2024–Jul 2025.
20	Afognak Native Corporation 8 awardees, including Alutiiq Solutions, LLC, Alutiiq Information Management, LLC and Shields Point LLC Top NAICS codes 561210 Facilities Support Services 541990 All Other Professional, Scientific, and Technical Services 541618 Other Management Consulting Services	$102,348,048	1.1%	Rank history: #13 in FY2021, #12 in FY2022, #11 in FY2023, #51 in FY2024 and #8 in FY2025; up 96 since Aug 2024–Jul 2025.
21	Ho-Chunk, Inc. 6 awardees, including Fire Creek Company, HCI Management Services Company and All Native Synergies Company Top NAICS codes 541330 Engineering Services 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services	$96,566,253	1.0%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #15 in FY2025; down 10 since Aug 2024–Jul 2025.
22	Tetra Tech, Inc. 3 awardees, including Halvik LLC and Pro-Telligent, LLC Top NAICS codes 562910 Remediation Services 541330 Engineering Services 541512 Computer Systems Design Services	$86,128,251	0.9%	Rank history: #29 in FY2021, #24 in FY2022, #15 in FY2023, #30 in FY2024 and #25 in FY2025; up 9 since Aug 2024–Jul 2025.
23	CGI Federal Inc. Top NAICS codes 541519 Other Computer Related Services 561990 All Other Support Services 541513 Computer Facilities Management Services	$84,833,309	0.9%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #2 in FY2025; down 20 since Aug 2024–Jul 2025.
24	AED Stratecon LLC Top NAICS codes 561730 Landscaping Services 238210 Electrical Contractors and Other Wiring Installation Contractors	$81,697,681	0.9%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Constellis, LLC 5 awardees, including Triple Canopy Inc., Academi Training Center LLC and Centerra Group, LLC Top NAICS codes 561612 Security Guards and Patrol Services 541690 Other Scientific and Technical Consulting Services 621910 Ambulance Services	$74,137,717	0.8%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
26	Improvix Technologies Inc. Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services 541611 Administrative Management and General Management Consulting Services	$71,507,069	0.7%	Rank history: #85 in FY2021, not on the FY2022 list, #83 in FY2023, #93 in FY2024 and #37 in FY2025; up 13 since Aug 2024–Jul 2025.
27	Olgoonik Corporation 8 awardees, including Olgoonik Logistics, LLC, Olgoonik Solutions LLC and Olgoonik Innovations, LLC Top NAICS codes 561210 Facilities Support Services 541690 Other Scientific and Technical Consulting Services 561611 Investigation and Personal Background Check Services	$71,078,955	0.7%	Rank history: #48 in FY2021, #68 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Creative It Solutions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$68,762,510	0.7%	Rank history: not on the FY2021 list, #43 in FY2022, #31 in FY2023, #20 in FY2024 and #32 in FY2025; down 4 since Aug 2024–Jul 2025.
29	RME / PCI Joint Venture LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$68,310,504	0.7%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
30	Palantir Technologies Inc. 2 awardees, including Palantir USG Inc. Top NAICS codes 513210 Software Publishers 511210 Software Publishers	$65,940,763	0.7%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #46 in FY2025; up 43 since Aug 2024–Jul 2025.
31	V3Gate, LLC Top NAICS codes 541519 Other Computer Related Services 334419 Other Electronic Component Manufacturing	$60,576,855	0.6%	Rank history: not on the FY2021–FY2022 lists, #42 in FY2023, #29 in FY2024 and #30 in FY2025; down 3 since Aug 2024–Jul 2025.
32	Human Technologies Corp Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services	$59,801,600	0.6%	Rank history: not on the FY2021 list, #58 in FY2022, #95 in FY2023, #21 in FY2024 and #83 in FY2025; up 11 since Aug 2024–Jul 2025.
33	Continuity Global Solutions LLC 7 awardees, including I3 Pathfinder USA LLC, Torres-Avarn Security LLC and Cgs-Orsa Security LLC Top NAICS codes 561612 Security Guards and Patrol Services	$58,772,934	0.6%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, not on the FY2024 list and #38 in FY2025; up 74 since Aug 2024–Jul 2025.
34	Veterans Holding Group LLC Through Relyant Global LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 561210 Facilities Support Services	$56,334,861	0.6%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; up 58 since Aug 2024–Jul 2025.
35	At&T Inc. 5 awardees, including At&T Enterprises, LLC and Att Mobility LLC Top NAICS codes 517110 Wired Telecommunications Carriers 517312 Wireless Telecommunications Carriers (except Satellite) 517112 Wireless Telecommunications Carriers (except Satellite)	$53,459,983	0.6%	Rank history: #30 in FY2021, #6 in FY2022, #16 in FY2023, #25 in FY2024 and #20 in FY2025; down 10 since Aug 2024–Jul 2025.
36	Tatitlek Corporation Through Tatitlek Technologies, LLC Top NAICS codes 561210 Facilities Support Services 811490 Other Personal and Household Goods Repair and Maintenance 238990 All Other Specialty Trade Contractors	$52,342,969	0.5%	Rank history: #21 in FY2021, #57 in FY2022, #33 in FY2023, #33 in FY2024 and #43 in FY2025; up 16 since Aug 2024–Jul 2025.
37	Safran Power USA LLC Through Idemia National Security Solutions LLC Top NAICS codes 339999 All Other Miscellaneous Manufacturing 541519 Other Computer Related Services	$51,220,363	0.5%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	GM Defense LLC Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing	$50,373,165	0.5%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #41 in FY2025; down 5 since Aug 2024–Jul 2025.
39	Nakupuna Solutions, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$48,194,699	0.5%	Rank history: not on the FY2021 list, #91 in FY2022, #72 in FY2023, #46 in FY2024 and #55 in FY2025; up 25 since Aug 2024–Jul 2025.
40	Cherokee Nation 9 awardees, including Cherokee Nation System Solutions LLC, Cherokee Nation Strategic Programs, L.L.C. and Cherokee Nation Solutions Link, L.L.C. Top NAICS codes 561210 Facilities Support Services 541330 Engineering Services 561599 All Other Travel Arrangement and Reservation Services	$47,487,288	0.5%	Rank history: #4 in FY2021, #78 in FY2022, not on the FY2023–FY2024 lists and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41	Epik International Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$46,495,568	0.5%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	American Institute In Taiwan Top NAICS codes 928120 International Affairs	$45,455,534	0.5%	Rank history: #41 in FY2021, #42 in FY2022, #29 in FY2023, #64 in FY2024 and #53 in FY2025; up 25 since Aug 2024–Jul 2025.
43	Acuity - Janus Global, LLC 2 awardees Top NAICS codes 561612 Security Guards and Patrol Services	$44,684,455	0.5%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	The Mil Corporation Top NAICS codes 541519 Other Computer Related Services	$44,520,032	0.5%	Rank history: #39 in FY2021, #36 in FY2022, #43 in FY2023, #44 in FY2024 and #42 in FY2025; up 14 since Aug 2024–Jul 2025.
45	Nve, Inc. Top NAICS codes 561612 Security Guards and Patrol Services 238210 Electrical Contractors and Other Wiring Installation Contractors	$41,709,832	0.4%	Rank history: #67 in FY2021, #38 in FY2022, #55 in FY2023, not on the FY2024 list and #44 in FY2025; up 43 since Aug 2024–Jul 2025.
46	V2X, Inc. Through V2X Systems LLC Top NAICS codes 561210 Facilities Support Services	$41,317,837	0.4%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
47	MEC Energy Services LLC Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services	$40,836,392	0.4%	Rank history: not on the FY2021 list, #73 in FY2022, #52 in FY2023, #31 in FY2024 and #50 in FY2025; down 13 since Aug 2024–Jul 2025.
48	Tuvli LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services	$39,564,151	0.4%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023, #57 in FY2024 and #61 in FY2025; down 8 since Aug 2024–Jul 2025.
49	BMW (US) Holding Corp. Through BMW of North America LLC Top NAICS codes 336110 Automobile and Light Duty Motor Vehicle Manufacturing 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing	$38,683,094	0.4%	Rank history: not on the FY2021–FY2025 lists; up 132 since Aug 2024–Jul 2025.
50	Federal Resources Corporation Top NAICS codes 541519 Other Computer Related Services	$37,649,705	0.4%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023, #54 in FY2024 and #56 in FY2025; unchanged since Aug 2024–Jul 2025.
51	Mythics Inc. 2 awardees, including Emergent, LLC Top NAICS codes 541519 Other Computer Related Services 513210 Software Publishers	$37,607,720	0.4%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #39 in FY2025; down 16 since Aug 2024–Jul 2025.
52	AAR Corp. Through AAR Government Services, Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation	$36,449,804	0.4%	Rank history: not on the FY2021–FY2025 lists; up 337 since Aug 2024–Jul 2025.
53	Bering Straits Native Corporation 6 awardees, including Paragon Professional Services LLC, Bering Straits Professional Services, LLC and Arcticom, LLC Top NAICS codes 561612 Security Guards and Patrol Services 541611 Administrative Management and General Management Consulting Services 336110 Automobile and Light Duty Motor Vehicle Manufacturing	$35,853,022	0.4%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2023, not on the FY2024 list and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Quantum-Systems Inc. Top NAICS codes 336411 Aircraft Manufacturing	$35,556,920	0.4%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 23 since Aug 2024–Jul 2025.
55	Integral Federal, Inc. Top NAICS codes 333244 Printing Machinery and Equipment Manufacturing	$35,526,642	0.4%	Rank history: #64 in FY2021, #65 in FY2022, not on the FY2023 list, #86 in FY2024 and #63 in FY2025; up 21 since Aug 2024–Jul 2025.
56	Akumen, Inc. Top NAICS codes 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$35,081,314	0.4%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #35 in FY2025; down 27 since Aug 2024–Jul 2025.
57	At&T Enterprises, LLC Through At&T Technical Services Company, Inc. Top NAICS codes 541512 Computer Systems Design Services 517110 Wired Telecommunications Carriers	$33,414,973	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Microsoft Corporation Top NAICS codes 541519 Other Computer Related Services 541511 Custom Computer Programming Services	$32,453,603	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Pütz Security AG Top NAICS codes 561612 Security Guards and Patrol Services	$31,714,599	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
60	G4S Secure Integration LLC Top NAICS codes 561612 Security Guards and Patrol Services	$31,363,567	0.3%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #45 in FY2025; down 24 since Aug 2024–Jul 2025.
61	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 335313 Switchgear and Switchboard Apparatus Manufacturing 334111 Electronic Computer Manufacturing	$30,598,885	0.3%	Rank history: #46 in FY2021, #34 in FY2022, #49 in FY2023, #49 in FY2024 and #54 in FY2025; down 20 since Aug 2024–Jul 2025.
62	Michael Stapleton Associates, Ltd. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$30,126,107	0.3%	Rank history: #45 in FY2021, #66 in FY2022, #71 in FY2023, #72 in FY2024 and #62 in FY2025; down 11 since Aug 2024–Jul 2025.
63	Sos International LLC 2 awardees, including STG LLC Top NAICS codes 561210 Facilities Support Services 541930 Translation and Interpretation Services 541511 Custom Computer Programming Services	$28,933,605	0.3%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and not on the FY2025 list; up 12 since Aug 2024–Jul 2025.
64	The Prospective Group, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 334512 Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use	$28,884,487	0.3%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 48 since Aug 2024–Jul 2025.
65	FCN, Inc. Top NAICS codes 541519 Other Computer Related Services 335313 Switchgear and Switchboard Apparatus Manufacturing	$28,567,017	0.3%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023, #70 in FY2024 and #71 in FY2025; up 18 since Aug 2024–Jul 2025.
66	Zenpoint Solutions LLC Top NAICS codes 541519 Other Computer Related Services	$27,480,136	0.3%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #69 in FY2025; down 28 since Aug 2024–Jul 2025.
67	Makwa Global Security Solutions, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services	$25,921,951	0.3%	Rank history: not on the FY2021 list, #85 in FY2022, #64 in FY2023, #82 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
68	Phoenix Air Group, Inc. Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation	$25,806,820	0.3%	Rank history: #25 in FY2021, #55 in FY2022, #61 in FY2023, #85 in FY2024 and #66 in FY2025; down 7 since Aug 2024–Jul 2025.
69	Tatitlek Federal Services LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$24,752,591	0.3%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 3 since Aug 2024–Jul 2025.
70	Leonardo S.p.A. Through Rada Technologies LLC Top NAICS codes 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$24,664,616	0.3%	Rank history: not on the FY2021–FY2025 lists; up 106 since Aug 2024–Jul 2025.
71	The Day & Zimmermann Group, Inc. Through SOC LLC Top NAICS codes 561612 Security Guards and Patrol Services	$24,596,657	0.3%	Rank history: #14 in FY2021, #14 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Carahsoft Technology Corp Top NAICS codes 334111 Electronic Computer Manufacturing 541519 Other Computer Related Services 511210 Software Publishers	$24,531,320	0.3%	Rank history: #26 in FY2021, #20 in FY2022, #85 in FY2023, not on the FY2024 list and #67 in FY2025; up 13 since Aug 2024–Jul 2025.
73	Integrated Finance and Accounting Solutions, Llc. Top NAICS codes 541219 Other Accounting Services	$24,461,641	0.3%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #61 in FY2024 and #48 in FY2025; down 24 since Aug 2024–Jul 2025.
74	Event Strategies Inc. Top NAICS codes 561920 Convention and Trade Show Organizers	$23,269,834	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	MG Facility Services, LLC Top NAICS codes 561210 Facilities Support Services	$23,012,855	0.2%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 42 since Aug 2024–Jul 2025.
76	Prime Source Technologies, LLC Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$21,838,300	0.2%	Rank history: not on the FY2021–FY2025 lists; up 300 since Aug 2024–Jul 2025.
77	Atlantic Diving Supply, Inc. 2 awardees Top NAICS codes 339999 All Other Miscellaneous Manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing 333314 Optical Instrument and Lens Manufacturing	$21,813,957	0.2%	Rank history: not on the FY2021–FY2025 lists; up 100 since Aug 2024–Jul 2025.
78	Olgoonik Innovations LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$21,353,419	0.2%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, not on the FY2024 list and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	Caddell Construction Co. Inc. Through Caddell Construction Co. (De), LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$21,332,816	0.2%	Rank history: not on the FY2021–FY2025 lists; up 170 since Aug 2024–Jul 2025.
80	Standard-Blazar, LLC Top NAICS codes 541519 Other Computer Related Services	$21,083,755	0.2%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #75 in FY2025; down 12 since Aug 2024–Jul 2025.
81	CACI International Inc. Through Caci Nss, LLC Top NAICS codes 541512 Computer Systems Design Services	$20,951,489	0.2%	Rank history: #89 in FY2021, not on the FY2022 list, #63 in FY2023, not on the FY2024 list and #82 in FY2025; up 3 since Aug 2024–Jul 2025.
82	Great Hill Solutions, LLC Top NAICS codes 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services	$20,658,371	0.2%	Rank history: not on the FY2021 list, #99 in FY2022, #40 in FY2023, #24 in FY2024 and #33 in FY2025; down 40 since Aug 2024–Jul 2025.
83	Trewon Technologies LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services	$20,635,448	0.2%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 49 since Aug 2024–Jul 2025.
84	G4S France JV Top NAICS codes 561612 Security Guards and Patrol Services	$19,663,353	0.2%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 17 since Aug 2024–Jul 2025.
85	T&H Services, LLC Top NAICS codes 561210 Facilities Support Services	$19,658,605	0.2%	Rank history: not on the FY2021–FY2025 lists; up 4 since Aug 2024–Jul 2025.
86	ICF International Inc. 3 awardees, including Semanticbits LLC, Incentive Technology Group LLC and ICF Incorporated, L.L.C. Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 541990 All Other Professional, Scientific, and Technical Services	$19,426,585	0.2%	Rank history: not on the FY2021–FY2025 lists; up 67 since Aug 2024–Jul 2025.
87	Confederated Tribes of the Umatilla Indian Reservation 2 awardees, including Cayuse Native Hawaiian Veterans, LLC and Cayuse Federal Services LLC Top NAICS codes 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services 488490 Other Support Activities for Road Transportation	$19,059,147	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Communications Resource Inc. Top NAICS codes 541511 Custom Computer Programming Services	$18,947,230	0.2%	Rank history: #100 in FY2021, #93 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; up 16 since Aug 2024–Jul 2025.
89	Beautiful Environmental Construction Co., Ltd. Top NAICS codes 562910 Remediation Services	$18,509,384	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	ManTech International Corporation Through Mantech Advanced Systems International, Inc. Top NAICS codes 541512 Computer Systems Design Services	$18,362,531	0.2%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #49 in FY2025; down 64 since Aug 2024–Jul 2025.
91	Goldbelt, Incorporated 6 awardees, including Goldbelt C6, LLC, Goldbelt Integrated Logistics Services, LLC and Peregrine Technical Solutions, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541611 Administrative Management and General Management Consulting Services 488510 Freight Transportation Arrangement	$17,936,320	0.2%	Rank history: not on the FY2021 list, #69 in FY2022, #54 in FY2023, not on the FY2024 list and #65 in FY2025; up 390 since Aug 2024–Jul 2025.
92	Geneva Software, LLC Top NAICS codes 541512 Computer Systems Design Services	$17,816,975	0.2%	Rank history: not on the FY2021–FY2025 lists; up 64 since Aug 2024–Jul 2025.
93	MDU Resources Group, Inc. Through OEG Inc. Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors	$17,764,567	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Kent Campa & Kate Inc. Top NAICS codes 561110 Office Administrative Services	$17,144,947	0.2%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #96 in FY2024 and #73 in FY2025; down 24 since Aug 2024–Jul 2025.
95	Sunflow Energy Corp Top NAICS codes 236220 Commercial and Institutional Building Construction 237130 Power and Communication Line and Related Structures Construction	$16,667,213	0.2%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
96	Quality Support, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$16,414,392	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Acqcentric, Inc. Top NAICS codes 336611 Ship Building and Repairing	$16,321,350	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	DNI Emerging Technologies, LLC Top NAICS codes 541519 Other Computer Related Services 336611 Ship Building and Repairing	$15,826,351	0.2%	Rank history: not on the FY2021–FY2025 lists; up 217 since Aug 2024–Jul 2025.
99	Page Southerland Page, Inc. Through Page Federal Solutions, LLC Top NAICS codes 541330 Engineering Services	$15,784,205	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Systems Plus, Inc. Top NAICS codes 541512 Computer Systems Design Services	$15,437,000	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, #98 in FY2024 and #72 in FY2025; down 47 since Aug 2024–Jul 2025.

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 $9.58 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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