Top 100 Department of State Contractors, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	PAE Government Services Inc. 5 awardees, including FCI Federal, LLC, PAE National Security Solutions LLC and Amentum Design and Facility Management Top NAICS codes 561210 Facilities Support Services 541330 Engineering Services 541618 Other Management Consulting Services	$462,154,356	4.4%	Rank history: #4 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
2	General Dynamics Corporation 8 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Csra LLC Top NAICS codes 541614 Process, Physical Distribution, and Logistics Consulting Services 541513 Computer Facilities Management Services 541512 Computer Systems Design Services	$446,776,580	4.2%	Rank history: #11 in FY2022, #4 in FY2023, #4 in FY2024 and #3 in FY2025; unchanged since FY2020.
3	Caddell Construction Co., Inc. 2 awardees, including Caddell Construction Co. (De), LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$378,293,536	3.6%	Rank history: #1 in FY2022 and not on the FY2023–FY2025 lists; up 38 since FY2020.
4	Cherokee Nation 5 awardees, including Cherokee Nation Management & Consulting, L.l.c.., Cherokee Nation Strategic Programs, L.L.C. and Cherokee Federal Solutions, L.L.C. Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services 488991 Packing and Crating	$361,622,363	3.4%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; up 35 since FY2020.
5	Pernix International, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$319,227,392	3.0%	Rank history: not on the FY2022 list, #7 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
6	Accenture Federal Services LLC 3 awardees, including Phase One Consulting Group, LLC Top NAICS codes 541519 Other Computer Related Services 541512 Computer Systems Design Services 511199 All Other Publishers	$241,063,703	2.3%	Rank history: #13 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
7	CGI Technologies and Solutions Inc. 2 awardees, including CGI Federal Inc. Top NAICS codes 541513 Computer Facilities Management Services 541519 Other Computer Related Services 561990 All Other Support Services	$238,095,634	2.2%	Rank history: #3 in FY2022, #5 in FY2023, #22 in FY2024 and not on the FY2025 list; down 2 since FY2020.
8	American International Contractors (Special Projects) Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$228,539,680	2.2%	Rank history: not on the FY2022–FY2025 lists; up 99 since FY2020.
9	Science Applications International Corporation 3 awardees, including Engility Services, LLC Top NAICS codes 541512 Computer Systems Design Services 561210 Facilities Support Services 541618 Other Management Consulting Services	$190,101,635	1.8%	Rank history: #7 in FY2022, #9 in FY2023, #5 in FY2024 and #9 in FY2025; up 2 since FY2020.
10	Aarcorp 2 awardees, including AAR Government Services, Inc. Top NAICS codes 488190 Other Support Activities for Air Transportation	$183,334,656	1.7%	Rank history: #16 in FY2022, #10 in FY2023, #56 in FY2024 and not on the FY2025 list; unchanged since FY2020.
11	Triple Canopy Inc. 6 awardees, including Centerra Group, LLC, Academi Training Center LLC and American K-9 Detection Services, LLC Top NAICS codes 561612 Security Guards and Patrol Services 541618 Other Management Consulting Services 621910 Ambulance Services	$177,636,616	1.7%	Rank history: #27 in FY2022, #78 in FY2023, #19 in FY2024 and #27 in FY2025; up 3 since FY2020.
12	Inter-Con Security Systems, Inc. Top NAICS codes 561612 Security Guards and Patrol Services	$167,235,551	1.6%	Rank history: #10 in FY2022, #12 in FY2023, #10 in FY2024 and #11 in FY2025; unchanged since FY2020.
13	Afognak Native Corporation 8 awardees, including Alutiiq Information Management, LLC, Alutiiq Essential Services LLC and Alutiiq Solutions, LLC Top NAICS codes 561210 Facilities Support Services 339999 All Other Miscellaneous Manufacturing 541611 Administrative Management and General Management Consulting Services	$152,933,412	1.4%	Rank history: #12 in FY2022, #11 in FY2023, #51 in FY2024 and #79 in FY2025; up 7 since FY2020.
14	The Day & Zimmermann Group, Inc. Through SOC LLC Top NAICS codes 561612 Security Guards and Patrol Services	$152,539,627	1.4%	Rank history: #14 in FY2022, #27 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
15	Amentum Services, Inc. 2 awardees, including Dyncorp International LLC Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services 541618 Other Management Consulting Services	$145,501,586	1.4%	Rank history: not on the FY2022–FY2025 lists; up 390 since FY2020.
16	G4S Holding One Inc. 7 awardees, including G4S Secure Integration LLC, G4S Secure Solutions International Inc. and G4S Peru S.a.c. Top NAICS codes 561612 Security Guards and Patrol Services 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing	$142,235,340	1.3%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 5 since FY2020.
17	Aegis Defense Services, 2 awardees, including Gardaworld Federal Services LLC Top NAICS codes 561612 Security Guards and Patrol Services	$136,199,528	1.3%	Rank history: not on the FY2022–FY2025 lists; down 8 since FY2020.
18	Deloitte LLP 4 awardees, including Deloitte Consulting LLP, Deloitte & Touche LLP and Deloitte Financial Advisory Services LLP Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services 541990 All Other Professional, Scientific, and Technical Services	$130,664,967	1.2%	Rank history: #17 in FY2022, #14 in FY2023, #7 in FY2024 and #6 in FY2025; up 9 since FY2020.
19	Winnebago Tribe of Nebraska 2 awardees, including HCI Management Services Company and All Native, Inc. Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services 237130 Power and Communication Line and Related Structures Construction	$125,505,557	1.2%	Rank history: #29 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
20	B.l. Harbert Holdings, L.L.C. Through BL Harbert International LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$110,195,990	1.0%	Rank history: #2 in FY2022, #1 in FY2023, #78 in FY2024 and not on the FY2025 list; down 19 since FY2020.
21	The Tatitlek Corporation 3 awardees, including Tatitlek Technologies, LLC, Geonorth, LLC and Tatitlek Federal Services LLC Top NAICS codes 561210 Facilities Support Services 541519 Other Computer Related Services 541690 Other Scientific and Technical Consulting Services	$109,975,604	1.0%	Rank history: #57 in FY2022, #33 in FY2023, #33 in FY2024 and #39 in FY2025; up 9 since FY2020.
22	Xator LLC 2 awardees, including Incadence Strategic Solutions LLC Top NAICS codes 238210 Electrical Contractors and Other Wiring Installation Contractors 541511 Custom Computer Programming Services 561621 Security Systems Services (except Locksmiths)	$98,575,766	0.9%	Rank history: #23 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2020.
23	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation and Northrop Grumman Information Technology Inc. Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services 511210 Software Publishers	$92,090,568	0.9%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
24	Koniag, Inc. 5 awardees, including Eagle Harbor Solutions LLC, Pacarctic, LLC and Tuknik Government Services LLC Top NAICS codes 541519 Other Computer Related Services 541611 Administrative Management and General Management Consulting Services 561210 Facilities Support Services	$86,159,752	0.8%	Rank history: #25 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
25	Phoenix Air Group, Inc. Top NAICS codes 481211 Nonscheduled Chartered Passenger Air Transportation	$77,989,573	0.7%	Rank history: #55 in FY2022, #61 in FY2023, #85 in FY2024 and #63 in FY2025; down 19 since FY2020.
26	Carahsoft Technology Corp Top NAICS codes 334111 Electronic Computer Manufacturing 511210 Software Publishers 541519 Other Computer Related Services	$76,027,248	0.7%	Rank history: #20 in FY2022, #85 in FY2023, not on the FY2024 list and #62 in FY2025; down 3 since FY2020.
27	Guidehouse Inc. 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$75,358,960	0.7%	Rank history: #22 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
28	Nana Regional Corporation Inc 7 awardees, including Tuvli LLC, Tuva LLC and Affigent, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541519 Other Computer Related Services 519130 Internet Publishing and Broadcasting and Web Search Portals	$73,779,772	0.7%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
29	Tetra Tech, Inc. 5 awardees, including Pro-Telligent, LLC and Management Systems International, Inc. Top NAICS codes 562910 Remediation Services 541330 Engineering Services 561612 Security Guards and Patrol Services	$71,658,461	0.7%	Rank history: #24 in FY2022, #15 in FY2023, #30 in FY2024 and #23 in FY2025; up 7 since FY2020.
30	At&T Inc. 4 awardees, including At&T Technical Services Company, Inc., Att Mobility LLC and At&T Enterprises, LLC Top NAICS codes 517110 Wired Telecommunications Carriers 541519 Other Computer Related Services 517312 Wireless Telecommunications Carriers (except Satellite)	$71,442,724	0.7%	Rank history: #6 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
31	Mantech International Corporation Through Mantech Advanced Systems International, Inc. Top NAICS codes 541330 Engineering Services 541512 Computer Systems Design Services	$70,401,711	0.7%	Rank history: #19 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; down 15 since FY2020.
32	Ldrm LLC Top NAICS codes 541513 Computer Facilities Management Services	$69,893,368	0.7%	Rank history: #26 in FY2022, #25 in FY2023, #23 in FY2024 and #18 in FY2025; up 6 since FY2020.
33	Mythics, LLC 2 awardees, including Emergent, LLC Top NAICS codes 334111 Electronic Computer Manufacturing	$63,952,664	0.6%	Rank history: #31 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
34	CDW Government LLC Top NAICS codes 541519 Other Computer Related Services 334112 Computer Storage Device Manufacturing 339940 Office Supplies (except Paper) Manufacturing	$63,083,807	0.6%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
35	Perspecta Inc. Through Peraton Enterprise Solutions LLC Top NAICS codes 541512 Computer Systems Design Services	$57,597,318	0.5%	Rank history: not on the FY2022–FY2025 lists; up 9 since FY2020.
36	Peckham Vocational Industries, Inc. Top NAICS codes 561421 Telephone Answering Services	$57,324,902	0.5%	Rank history: #32 in FY2022, #17 in FY2023, #8 in FY2024 and #7 in FY2025; down 7 since FY2020.
37	EOD Technology Inc. Through Acuity - Janus Global, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$55,527,414	0.5%	Rank history: #30 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 9 since FY2020.
38	Sea Pac Engineering Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 236210 Industrial Building Construction 333921 Elevator and Moving Stairway Manufacturing	$48,845,060	0.5%	Rank history: not on the FY2022–FY2025 lists; up 210 since FY2020.
39	The Mil Corporation Top NAICS codes 541519 Other Computer Related Services	$46,968,945	0.4%	Rank history: #36 in FY2022, #43 in FY2023, #44 in FY2024 and #38 in FY2025; down 4 since FY2020.
40	Kci-Acuity, LLC Top NAICS codes 541512 Computer Systems Design Services	$46,643,922	0.4%	Rank history: #35 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
41	American Institute In Taiwan Top NAICS codes 928120 International Affairs	$45,396,659	0.4%	Rank history: #42 in FY2022, #29 in FY2023, #64 in FY2024 and #49 in FY2025; down 1 since FY2020.
42	Ethan Allen Interiors Inc. Through Ethan Allen Retail, Inc. Top NAICS codes 337122 Nonupholstered Wood Household Furniture Manufacturing 337214 Office Furniture (except Wood) Manufacturing 423210 Furniture Merchant Wholesalers	$44,528,942	0.4%	Rank history: #37 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 47 since FY2020.
43	Lumbee Tribe Enterprises LLC Top NAICS codes 561990 All Other Support Services	$41,793,013	0.4%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
44	Battelle Memorial Institute Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing 541420 Industrial Design Services	$41,715,229	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	Michael Stapleton Associates, Ltd. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$40,486,835	0.4%	Rank history: #66 in FY2022, #71 in FY2023, #72 in FY2024 and #57 in FY2025; up 25 since FY2020.
46	New TECH Solutions, Inc. Top NAICS codes 541519 Other Computer Related Services 333244 Printing Machinery and Equipment Manufacturing 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing	$39,696,497	0.4%	Rank history: #34 in FY2022, #49 in FY2023, #49 in FY2024 and #50 in FY2025; down 14 since FY2020.
47	Miracle Systems LLC Top NAICS codes 541330 Engineering Services 541519 Other Computer Related Services	$38,638,044	0.4%	Rank history: not on the FY2022–FY2025 lists; down 19 since FY2020.
48	Olgoonik Corporation 6 awardees, including Olgoonik Solutions, LLC, Olgoonik Specialty Contractors LLC and Olgoonik Technical Services, LLC Top NAICS codes 541512 Computer Systems Design Services 541690 Other Scientific and Technical Consulting Services 541611 Administrative Management and General Management Consulting Services	$36,612,808	0.3%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
49	Ids International, LLC Top NAICS codes 561612 Security Guards and Patrol Services 541690 Other Scientific and Technical Consulting Services 561210 Facilities Support Services	$36,130,836	0.3%	Rank history: not on the FY2022–FY2023 lists, #100 in FY2024 and not on the FY2025 list; up 30 since FY2020.
50	Techniko LLC Top NAICS codes 541512 Computer Systems Design Services	$35,346,006	0.3%	Rank history: #46 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
51	Idemia Identity & Security USA LLC Through Idemia National Security Solutions LLC Top NAICS codes 333244 Printing Machinery and Equipment Manufacturing 541519 Other Computer Related Services	$34,901,021	0.3%	Rank history: #48 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
52	WHR Architects, Inc. Through Page Southerland Page, Inc. Top NAICS codes 541330 Engineering Services 541310 Architectural Services	$34,615,327	0.3%	Rank history: not on the FY2022–FY2025 lists; up 404 since FY2020.
53	Tsymmetry Inc. Top NAICS codes 517919 All Other Telecommunications 541512 Computer Systems Design Services	$34,457,758	0.3%	Rank history: #72 in FY2022, #50 in FY2023, #53 in FY2024 and not on the FY2025 list; up 9 since FY2020.
54	Directviz Solutions, LLC Top NAICS codes 541511 Custom Computer Programming Services	$33,866,587	0.3%	Rank history: not on the FY2022–FY2025 lists; up 138 since FY2020.
55	General Motors Company Through GM Defense LLC Top NAICS codes 541420 Industrial Design Services	$33,803,388	0.3%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
56	Veterans Holding Group LLC Through Relyant Global LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$33,689,475	0.3%	Rank history: not on the FY2022–FY2025 lists; up 66 since FY2020.
57	Haynes, Inc. Top NAICS codes 541219 Other Accounting Services	$32,124,464	0.3%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
58	Microsoft Corporation 2 awardees Top NAICS codes 541519 Other Computer Related Services 523910 Miscellaneous Intermediation	$30,174,105	0.3%	Rank history: #67 in FY2022, #65 in FY2023, not on the FY2024 list and #58 in FY2025; up 25 since FY2020.
59	Grant Thornton International Ltd 2 awardees, including Grant Thornton LLP and Grant Thornton Public Sector LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541199 All Other Legal Services	$29,192,155	0.3%	Rank history: #83 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 163 since FY2020.
60	Microhealth LLC Top NAICS codes 541512 Computer Systems Design Services	$28,357,891	0.3%	Rank history: not on the FY2022–FY2025 lists; up 42 since FY2020.
61	Development Infostructure LLC Top NAICS codes 541512 Computer Systems Design Services	$28,148,147	0.3%	Rank history: #82 in FY2022, #58 in FY2023, #87 in FY2024 and not on the FY2025 list; up 12 since FY2020.
62	All Native Synergies Company Top NAICS codes 541611 Administrative Management and General Management Consulting Services 488490 Other Support Activities for Road Transportation	$27,795,236	0.3%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
63	Cherokee Nation Mission Solutions, L.L.C. Top NAICS codes 561210 Facilities Support Services 541611 Administrative Management and General Management Consulting Services 541618 Other Management Consulting Services	$27,414,326	0.3%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 41 since FY2020.
64	Integral Federal, Inc. Top NAICS codes 333244 Printing Machinery and Equipment Manufacturing	$27,123,333	0.3%	Rank history: #65 in FY2022, not on the FY2023 list, #86 in FY2024 and #59 in FY2025; up 40 since FY2020.
65	Arctic Slope Regional Corporation 3 awardees, including Netcentric Technology, LLC and Asrc Federal Data Solutions, LLC Top NAICS codes 541512 Computer Systems Design Services 519130 Internet Publishing and Broadcasting and Web Search Portals	$26,806,302	0.3%	Rank history: #76 in FY2022, #59 in FY2023, #55 in FY2024 and not on the FY2025 list; up 9 since FY2020.
66	Desbuild Incorporated Top NAICS codes 236220 Commercial and Institutional Building Construction	$25,349,547	0.2%	Rank history: #33 in FY2022, #44 in FY2023, #36 in FY2024 and #97 in FY2025; new, not ranked in FY2020.
67	Nve, Inc. Top NAICS codes 561612 Security Guards and Patrol Services 561210 Facilities Support Services	$25,226,222	0.2%	Rank history: #38 in FY2022, #55 in FY2023, not on the FY2024 list and #40 in FY2025; up 8 since FY2020.
68	Moss Cape, LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$24,020,587	0.2%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
69	Muscogee Creek Nation Through Muscogee International LLC Top NAICS codes 561210 Facilities Support Services	$23,672,900	0.2%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
70	Framaco International Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction 444130 Hardware Stores	$23,484,097	0.2%	Rank history: not on the FY2022–FY2025 lists; up 338 since FY2020.
71	Totally Joined for Achieving Collaborative Techniques (Tjfact), LLC Top NAICS codes 541930 Translation and Interpretation Services 541611 Administrative Management and General Management Consulting Services	$22,850,345	0.2%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
72	CDW Corporation 2 awardees, including CDW Government LLC Top NAICS codes 541519 Other Computer Related Services 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing 334111 Electronic Computer Manufacturing	$22,847,726	0.2%	Rank history: #18 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
73	Idemia National Security Solutions LLC Top NAICS codes 339999 All Other Miscellaneous Manufacturing 333244 Printing Machinery and Equipment Manufacturing	$22,587,342	0.2%	Rank history: not on the FY2022–FY2023 lists, #74 in FY2024 and #54 in FY2025; up 81 since FY2020.
74	SRA International Inc. Through General Dynamics Information Technology, Inc. Top NAICS codes 541512 Computer Systems Design Services	$21,742,330	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	CHS Middle East LLC Through Acuity - CHS Middle East, LLC Top NAICS codes 622110 General Medical and Surgical Hospitals	$21,414,530	0.2%	Rank history: #44 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
76	Pond Security Service GMBH Top NAICS codes 561612 Security Guards and Patrol Services	$21,287,007	0.2%	Rank history: #60 in FY2022, #70 in FY2023, #60 in FY2024 and #67 in FY2025; up 19 since FY2020.
77	Thundercat Technology, LLC Top NAICS codes 541519 Other Computer Related Services 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing 512110 Motion Picture and Video Production	$20,724,027	0.2%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
78	Square One Armoring Services Co. Top NAICS codes 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing	$20,012,545	0.2%	Rank history: #84 in FY2022, not on the FY2023 list, #66 in FY2024 and not on the FY2025 list; down 15 since FY2020.
79	Arkel International, L.L.C. Top NAICS codes 236220 Commercial and Institutional Building Construction 238210 Electrical Contractors and Other Wiring Installation Contractors	$19,867,927	0.2%	Rank history: not on the FY2022 list, #37 in FY2023 and not on the FY2024–FY2025 lists; up 270 since FY2020.
80	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541511 Custom Computer Programming Services 541519 Other Computer Related Services	$19,791,888	0.2%	Rank history: #54 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; up 93 since FY2020.
81	Mercom, Incorporated Top NAICS codes 541519 Other Computer Related Services 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing 334111 Electronic Computer Manufacturing	$19,383,742	0.2%	Rank history: not on the FY2022–FY2025 lists; down 28 since FY2020.
82	Chenega Security International, LLC Top NAICS codes 541330 Engineering Services	$18,823,738	0.2%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 132 since FY2020.
83	Olgoonik Federal, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 561210 Facilities Support Services 493190 Other Warehousing and Storage	$18,215,179	0.2%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
84	Katmai Health Services LLC Top NAICS codes 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers	$17,681,594	0.2%	Rank history: not on the FY2022–FY2025 lists; up 71 since FY2020.
85	Improvix Technologies Inc. Top NAICS codes 541512 Computer Systems Design Services	$17,672,255	0.2%	Rank history: not on the FY2022 list, #83 in FY2023, #93 in FY2024 and #34 in FY2025; up 102 since FY2020.
86	Vae, Inc. Top NAICS codes 541519 Other Computer Related Services 517911 Telecommunications Resellers	$17,624,091	0.2%	Rank history: not on the FY2022 list, #90 in FY2023 and not on the FY2024–FY2025 lists; up 90 since FY2020.
87	Alpha Omega Integration LLC Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$17,516,967	0.2%	Rank history: #81 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 81 since FY2020.
88	Obsidian Solutions Group LLC Top NAICS codes 541330 Engineering Services	$17,402,755	0.2%	Rank history: #70 in FY2022, #94 in FY2023, not on the FY2024 list and #82 in FY2025; down 7 since FY2020.
89	CACI International Inc. 2 awardees, including Caci Nss, LLC and Caci Technology Insights, Llc. Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$17,206,940	0.2%	Rank history: not on the FY2022 list, #63 in FY2023, not on the FY2024 list and #83 in FY2025; up 94 since FY2020.
90	Richard & Kennedy Architects, LLC Top NAICS codes 541310 Architectural Services	$17,092,020	0.2%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 303 since FY2020.
91	Competitive Innovations LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$16,779,467	0.2%	Rank history: not on the FY2022–FY2025 lists; up 135 since FY2020.
92	Tlingit Haida Tribal Business Corporation Through T&H Services, LLC Top NAICS codes 561210 Facilities Support Services	$16,511,657	0.2%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
93	Cis Labs, Inc. Top NAICS codes 541519 Other Computer Related Services	$16,130,496	0.2%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
94	Arista Aviation Services Group, LLC 2 awardees, including Arista Aviation Services, Llc. Top NAICS codes 336411 Aircraft Manufacturing	$15,914,089	0.2%	Rank history: not on the FY2022–FY2025 lists; up 125 since FY2020.
95	Obxtek Inc. Top NAICS codes 541512 Computer Systems Design Services 541330 Engineering Services	$15,910,135	0.2%	Rank history: #88 in FY2022, #89 in FY2023, #97 in FY2024 and #89 in FY2025; up 16 since FY2020.
96	Alaska Native Government Services LLC 3 awardees, including Copper River Enterprise Services, LLC, Copper River Technologies, LLC and Reconcraft, LLC Top NAICS codes 541513 Computer Facilities Management Services 541512 Computer Systems Design Services 541519 Other Computer Related Services	$15,842,007	0.1%	Rank history: #79 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
97	Fcn, Inc. Top NAICS codes 541519 Other Computer Related Services 519130 Internet Publishing and Broadcasting and Web Search Portals 541513 Computer Facilities Management Services	$15,807,266	0.1%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
98	Cherokee Nation System Solutions LLC Top NAICS codes 561210 Facilities Support Services 541512 Computer Systems Design Services	$15,786,942	0.1%	Rank history: #49 in FY2022, #53 in FY2023, #47 in FY2024 and #73 in FY2025; new, not ranked in FY2020.
99	International Construction Services, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$15,759,565	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Communications Resource Inc. Top NAICS codes 541511 Custom Computer Programming Services	$15,624,572	0.1%	Rank history: #93 in FY2022, #99 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.

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 $10.6 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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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