Top 100 Department of Defense Education Activity Contractors, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. Through Leidos, Inc. Top NAICS codes 624190 Other Individual and Family Services	$154,487,620	17.4%	Rank history: #2 in FY2021, #2 in FY2023, #1 in FY2024 and #2 in FY2025; up 1 since FY2021.
2	Magellan Health, Inc. Through Magellan Federal, Inc. Top NAICS codes 624190 Other Individual and Family Services	$99,388,612	11.2%	Rank history: #1 in FY2021, #1 in FY2023, #4 in FY2024 and not on the FY2025 list; down 1 since FY2021.
3	Anthem Inc. 2 awardees, including Carelon Health Federal Services, Inc. Top NAICS codes 624190 Other Individual and Family Services	$91,630,887	10.3%	Rank history: not on the FY2021 list, #3 in FY2023, not on the FY2024 list and #3 in FY2025; new.
4	Centene Corporation 2 awardees, including Magellan Federal, Inc. Top NAICS codes 624190 Other Individual and Family Services	$43,660,303	4.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
5	Miracle Systems LLC Top NAICS codes 541330 Engineering Services	$40,227,569	4.5%	Rank history: #5 in FY2021, #4 in FY2023, #3 in FY2024 and #4 in FY2025; unchanged since FY2021.
6	Zeiders Enterprises, Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$33,684,318	3.8%	Rank history: #4 in FY2021, #9 in FY2023, #8 in FY2024 and #6 in FY2025; down 2 since FY2021.
7	NCS Technologies Inc. Top NAICS codes 541519 Other Computer Related Services 334111 Electronic Computer Manufacturing	$24,453,133	2.8%	Rank history: not on the FY2021 list, #7 in FY2023, #9 in FY2024 and not on the FY2025 list; new.
8	SKE Technical Services GMBH 2 awardees, including SKE SRL Top NAICS codes 561210 Facilities Support Services 236220 Commercial and Institutional Building Construction	$22,212,439	2.5%	Rank history: #35 in FY2021, #5 in FY2023, #5 in FY2024 and #11 in FY2025; up 27 since FY2021.
9	Town of Lincoln Town Hall Top NAICS codes 611110 Elementary and Secondary Schools	$17,138,568	1.9%	Rank history: #8 in FY2021, #8 in FY2023, #6 in FY2024 and #7 in FY2025; down 1 since FY2021.
10	American Engineering Corporation Top NAICS codes 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance 561210 Facilities Support Services 238990 All Other Specialty Trade Contractors	$14,324,200	1.6%	Rank history: #15 in FY2021, #12 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
11	Custodial Enterprises GMBH Top NAICS codes 561210 Facilities Support Services	$14,129,401	1.6%	Rank history: #9 in FY2021, #10 in FY2023, #10 in FY2024 and #10 in FY2025; down 2 since FY2021.
12	JV JOC Germany BMS Top NAICS codes 236220 Commercial and Institutional Building Construction	$11,748,958	1.3%	Rank history: #40 in FY2021 and not on the FY2023–FY2025 lists; up 28 since FY2021.
13	22Nd Century Technologies, Inc. Top NAICS codes 541519 Other Computer Related Services	$11,439,323	1.3%	Rank history: #12 in FY2021, #11 in FY2023, not on the FY2024 list and #8 in FY2025; down 1 since FY2021.
14	Caesar Rodney School District Top NAICS codes 611110 Elementary and Secondary Schools	$10,648,061	1.2%	Rank history: #13 in FY2021, not on the FY2023 list, #12 in FY2024 and #12 in FY2025; down 1 since FY2021.
15	Audax-Reisen-Gesellschaft MIT Beschrankter Haftung Top NAICS codes 485410 School and Employee Bus Transportation	$10,479,876	1.2%	Rank history: #22 in FY2021, #13 in FY2023, #16 in FY2024 and #18 in FY2025; up 7 since FY2021.
16	Taylor Motors, Inc. Top NAICS codes 485410 School and Employee Bus Transportation	$9,509,122	1.1%	Rank history: #27 in FY2021, #15 in FY2023, #11 in FY2024 and #13 in FY2025; up 11 since FY2021.
17	Highland Falls Fort Montgomery School District Top NAICS codes 611110 Elementary and Secondary Schools	$6,992,743	0.8%	Rank history: #17 in FY2021, #19 in FY2023, #18 in FY2024 and #19 in FY2025; unchanged since FY2021.
18	Broadleaf, Inc. Top NAICS codes 541512 Computer Systems Design Services	$6,590,553	0.7%	Rank history: not on the FY2021 list, not on the FY2023 list, #19 in FY2024 and not on the FY2025 list; new.
19	Swingtech Consulting Inc. Top NAICS codes 541512 Computer Systems Design Services 511210 Software Publishers 541511 Custom Computer Programming Services	$6,263,325	0.7%	Rank history: #28 in FY2021, #24 in FY2023, #21 in FY2024 and not on the FY2025 list; up 9 since FY2021.
20	Omnibusbetrieb Vicari GMBH Top NAICS codes 485410 School and Employee Bus Transportation	$6,153,437	0.7%	Rank history: #26 in FY2021, #20 in FY2023, #28 in FY2024 and not on the FY2025 list; up 6 since FY2021.
21	Sumitomo Mitsui Auto Service Company Limited 2 awardees Top NAICS codes 485410 School and Employee Bus Transportation 532112 Passenger Car Leasing	$6,117,441	0.7%	Rank history: #30 in FY2021, #21 in FY2023, #32 in FY2024 and #33 in FY2025; up 9 since FY2021.
22	ABC Team-Spielplatzgerate Gesellschaft MIT Beschrankter Haftung Top NAICS codes 238990 All Other Specialty Trade Contractors	$5,603,237	0.6%	Rank history: not on the FY2021 list, #62 in FY2023, #39 in FY2024 and #41 in FY2025; new.
23	Trace Systems Holdings Inc. Through Trace Systems, Inc. Top NAICS codes 517410 Satellite Telecommunications	$5,582,705	0.6%	Rank history: #10 in FY2021, #16 in FY2023, #59 in FY2024 and not on the FY2025 list; down 13 since FY2021.
24	International Business Sales and Services Corp Top NAICS codes 541512 Computer Systems Design Services	$5,576,835	0.6%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
25	Carahsoft Technology Corp Top NAICS codes 511210 Software Publishers	$5,285,012	0.6%	Rank history: #18 in FY2021, #17 in FY2023, #15 in FY2024 and #17 in FY2025; down 7 since FY2021.
26	Reinhold Beisel Top NAICS codes 485410 School and Employee Bus Transportation	$4,997,665	0.6%	Rank history: #73 in FY2021, #22 in FY2023, #23 in FY2024 and #21 in FY2025; up 47 since FY2021.
27	Dev Holdings Top NAICS codes 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing	$4,794,349	0.5%	Rank history: #21 in FY2021, not on the FY2023 list, #73 in FY2024 and not on the FY2025 list; down 6 since FY2021.
28	Houghton Mifflin Company Through HMH Education Company Top NAICS codes 511130 Book Publishers	$4,602,817	0.5%	Rank history: #56 in FY2021 and not on the FY2023–FY2025 lists; up 28 since FY2021.
29	Strategic Resources, Incorporated Top NAICS codes 624190 Other Individual and Family Services	$4,554,689	0.5%	Rank history: #6 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
30	Alpha Facilities Solutions, LLC Top NAICS codes 562910 Remediation Services 511210 Software Publishers	$4,422,207	0.5%	Rank history: #24 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
31	Mackin Book Company Top NAICS codes 611710 Educational Support Services 519130 Internet Publishing and Broadcasting and Web Search Portals 511120 Periodical Publishers	$4,073,407	0.5%	Rank history: #36 in FY2021, #31 in FY2023, #34 in FY2024 and #47 in FY2025; up 5 since FY2021.
32	FCN, Inc. Top NAICS codes 541519 Other Computer Related Services	$3,973,110	0.4%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #29 in FY2025; new.
33	Lumen Technologies, Inc. 2 awardees, including Lumen Technologies Government Solutions, Inc. Top NAICS codes 517110 Wired Telecommunications Carriers	$3,861,099	0.4%	Rank history: not on the FY2021 list, #27 in FY2023 and not on the FY2024–FY2025 lists; new.
34	Attainx Inc. Top NAICS codes 541512 Computer Systems Design Services 541611 Administrative Management and General Management Consulting Services	$3,178,283	0.4%	Rank history: #63 in FY2021, #23 in FY2023, #20 in FY2024 and #26 in FY2025; up 29 since FY2021.
35	Microsoft Corporation Top NAICS codes 541511 Custom Computer Programming Services	$3,173,350	0.4%	Rank history: #52 in FY2021, #38 in FY2023, #46 in FY2024 and #35 in FY2025; up 17 since FY2021.
36	NCS Pearson Inc. 2 awardees Top NAICS codes 611710 Educational Support Services	$3,171,779	0.4%	Rank history: #25 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
37	Global Connections To Employment, Inc. Top NAICS codes 561210 Facilities Support Services	$3,170,316	0.4%	Rank history: #33 in FY2021, #29 in FY2023, #43 in FY2024 and #28 in FY2025; down 4 since FY2021.
38	Benchmark Education Company LLC Top NAICS codes 511130 Book Publishers	$3,006,417	0.3%	Rank history: not on the FY2021 list, #44 in FY2023, #55 in FY2024 and #77 in FY2025; up 64 since FY2021.
39	Upbrainery Technologies LLC Top NAICS codes 611710 Educational Support Services	$2,860,000	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
40	Brevard Achievement Center, Inc. Top NAICS codes 561720 Janitorial Services	$2,856,337	0.3%	Rank history: #34 in FY2021, #36 in FY2023, #36 in FY2024 and #34 in FY2025; down 6 since FY2021.
41	Quadra Control Services Limited. 2 awardees Top NAICS codes 485410 School and Employee Bus Transportation 561110 Office Administrative Services	$2,821,509	0.3%	Rank history: #90 in FY2021, #43 in FY2023, #98 in FY2024 and not on the FY2025 list; up 49 since FY2021.
42	Afognak Native Corporation 2 awardees, including "Alutiiq Logistics & Maintenance Services, Llc" Top NAICS codes 485410 School and Employee Bus Transportation	$2,782,295	0.3%	Rank history: not on the FY2021 list, #97 in FY2023, #47 in FY2024 and #23 in FY2025; up 96 since FY2021.
43	Pond Security Service GMBH Top NAICS codes 561612 Security Guards and Patrol Services	$2,759,003	0.3%	Rank history: #20 in FY2021, #41 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2021.
44	Insight Public Sector Inc. Top NAICS codes 541519 Other Computer Related Services	$2,730,460	0.3%	Rank history: #31 in FY2021, #34 in FY2023, #25 in FY2024 and #32 in FY2025; down 13 since FY2021.
45	Mitomo Marutaka JV Top NAICS codes 236220 Commercial and Institutional Building Construction	$2,727,751	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
46	Cengage Learning Inc. 2 awardees Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals 511130 Book Publishers 511120 Periodical Publishers	$2,599,248	0.3%	Rank history: #32 in FY2021, #55 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
47	Daewon Express Co., Ltd. 2 awardees Top NAICS codes 485410 School and Employee Bus Transportation	$2,593,522	0.3%	Rank history: #77 in FY2021, #32 in FY2023, #26 in FY2024 and #31 in FY2025; up 30 since FY2021.
48	Nikkai Corporation Top NAICS codes 236220 Commercial and Institutional Building Construction	$2,583,297	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
49	The Bowen Consulting Group. Inc. Top NAICS codes 541511 Custom Computer Programming Services	$2,501,270	0.3%	Rank history: #44 in FY2021, #37 in FY2023, #41 in FY2024 and #88 in FY2025; down 5 since FY2021.
50	Senon Limited Top NAICS codes 485410 School and Employee Bus Transportation	$2,265,070	0.3%	Rank history: #49 in FY2021, #45 in FY2023, #70 in FY2024 and not on the FY2025 list; down 1 since FY2021.
51	O'reilly Media, Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$2,262,500	0.3%	Rank history: #41 in FY2021, #46 in FY2023, #54 in FY2024 and not on the FY2025 list; down 10 since FY2021.
52	Muraro Viaggi E Vacanze DI Muraro Giorgio Top NAICS codes 485410 School and Employee Bus Transportation	$2,238,293	0.3%	Rank history: #93 in FY2021, #48 in FY2023, #64 in FY2024 and #53 in FY2025; up 41 since FY2021.
53	Yellowfin Transportation Inc. Top NAICS codes 485410 School and Employee Bus Transportation	$2,219,306	0.3%	Rank history: #48 in FY2021, #51 in FY2023, #72 in FY2024 and #36 in FY2025; down 5 since FY2021.
54	PAE Government Services Inc. Top NAICS codes 561210 Facilities Support Services	$2,212,190	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
55	Nihon Sogo Seibi Co. Ltd. Top NAICS codes 561210 Facilities Support Services	$1,958,939	0.2%	Rank history: #43 in FY2021, #60 in FY2023, #65 in FY2024 and #58 in FY2025; down 12 since FY2021.
56	Willax GMBH Top NAICS codes 485410 School and Employee Bus Transportation	$1,944,233	0.2%	Rank history: #91 in FY2021, #30 in FY2023, #33 in FY2024 and #22 in FY2025; up 35 since FY2021.
57	Federal Resources Corporation Top NAICS codes 541519 Other Computer Related Services	$1,877,535	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 114 since FY2021.
58	Ican Resources Inc. Top NAICS codes 561720 Janitorial Services	$1,827,027	0.2%	Rank history: #45 in FY2021, not on the FY2023 list, #50 in FY2024 and #43 in FY2025; down 13 since FY2021.
59	Index Systems Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541618 Other Management Consulting Services	$1,783,035	0.2%	Rank history: #29 in FY2021 and not on the FY2023–FY2025 lists; down 30 since FY2021.
60	Follett Corporation Through Follett Software, LLC Top NAICS codes 511210 Software Publishers 334614 Software and Other Prerecorded Compact Disc, Tape, and Record Reproducing	$1,701,378	0.2%	Rank history: #87 in FY2021, #63 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2021.
61	SNC Scionti & C. DI Scionti Ignazio Top NAICS codes 485410 School and Employee Bus Transportation	$1,679,676	0.2%	Rank history: #61 in FY2021, #61 in FY2023, #76 in FY2024 and #54 in FY2025; unchanged since FY2021.
62	Chainbridge Solutions Incorporated Top NAICS codes 541519 Other Computer Related Services	$1,676,883	0.2%	Rank history: #39 in FY2021, #90 in FY2023, #62 in FY2024 and #39 in FY2025; down 23 since FY2021.
63	Brymak Eagle Pro LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,606,142	0.2%	Rank history: #60 in FY2021, #49 in FY2023, #68 in FY2024 and not on the FY2025 list; down 3 since FY2021.
64	Mil-Ken Travel Limited Top NAICS codes 485410 School and Employee Bus Transportation	$1,597,953	0.2%	Rank history: #66 in FY2021, #54 in FY2023, #56 in FY2024 and #48 in FY2025; up 2 since FY2021.
65	Ebsco Industries Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$1,565,191	0.2%	Rank history: #62 in FY2021, not on the FY2023–FY2024 lists and #85 in FY2025; down 3 since FY2021.
66	Southern Association of Colleges and Schools Commission on C Through Cognia Inc. Top NAICS codes 611710 Educational Support Services	$1,490,341	0.2%	Rank history: not on the FY2021 list, #57 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2021.
67	Access: Supports for Living Inc. Top NAICS codes 561210 Facilities Support Services	$1,421,231	0.2%	Rank history: #58 in FY2021, #64 in FY2023, #75 in FY2024 and #60 in FY2025; down 9 since FY2021.
68	Newimar Sociedad Anonima Top NAICS codes 561720 Janitorial Services 561210 Facilities Support Services	$1,414,591	0.2%	Rank history: not on the FY2021 list, #71 in FY2023, #80 in FY2024 and #67 in FY2025; new.
69	Gapjin Development Co., Ltd. Top NAICS codes 561720 Janitorial Services	$1,402,658	0.2%	Rank history: #50 in FY2021, #68 in FY2023, #81 in FY2024 and #100 in FY2025; down 19 since FY2021.
70	Cermak GMBH & Co. KG Top NAICS codes 485410 School and Employee Bus Transportation	$1,385,921	0.2%	Rank history: #65 in FY2021, #65 in FY2023, #74 in FY2024 and #37 in FY2025; down 5 since FY2021.
71	Autoservizi Meridionali S.R.L. Top NAICS codes 485410 School and Employee Bus Transportation	$1,377,992	0.2%	Rank history: #78 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2021.
72	Sitesource, LLC Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing	$1,357,419	0.2%	Rank history: not on the FY2021 list, #89 in FY2023 and not on the FY2024–FY2025 lists; up 162 since FY2021.
73	USP Cbfs JV, LLC Top NAICS codes 236220 Commercial and Institutional Building Construction	$1,327,058	0.1%	Rank history: #57 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
74	Arrow Electronics, Inc. Through EC America, Inc. Top NAICS codes 443120 Computer and Software Stores	$1,317,271	0.1%	Rank history: not on the FY2021 list, #56 in FY2023, #93 in FY2024 and not on the FY2025 list; new.
75	Alibus International SRL Through Nomago Italia S.R.L. Top NAICS codes 485410 School and Employee Bus Transportation	$1,311,617	0.1%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
76	Compass Contract Services (U.K.) Limited Top NAICS codes 561210 Facilities Support Services	$1,213,451	0.1%	Rank history: #68 in FY2021, #67 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
77	Parliament LLC Top NAICS codes 621999 All Other Miscellaneous Ambulatory Health Care Services 611710 Educational Support Services 621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists	$1,211,864	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 59 since FY2021.
78	Autocares Rico SA Top NAICS codes 485410 School and Employee Bus Transportation	$1,161,128	0.1%	Rank history: #92 in FY2021, #98 in FY2023, #96 in FY2024 and #72 in FY2025; up 14 since FY2021.
79	Broadland Guarding Services Limited Top NAICS codes 561612 Security Guards and Patrol Services	$1,140,282	0.1%	Rank history: #46 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; down 33 since FY2021.
80	College Entrance Examination Board Top NAICS codes 611691 Exam Preparation and Tutoring	$1,109,946	0.1%	Rank history: #69 in FY2021, #75 in FY2023, #67 in FY2024 and #42 in FY2025; down 11 since FY2021.
81	Safal Partners LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$1,107,045	0.1%	Rank history: #70 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
82	Crocus LLC Top NAICS codes 541512 Computer Systems Design Services	$1,083,908	0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
83	Proquest LLC Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$1,066,584	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
84	Christian Schary, Engelbert Schary Busunternehmen Top NAICS codes 485410 School and Employee Bus Transportation	$1,064,460	0.1%	Rank history: #94 in FY2021 and not on the FY2023–FY2025 lists; up 10 since FY2021.
85	School Specialty, LLC Top NAICS codes 511130 Book Publishers	$1,054,790	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Johannes Faber Top NAICS codes 485410 School and Employee Bus Transportation	$1,005,408	0.1%	Rank history: not on the FY2021 list, #99 in FY2023, #97 in FY2024 and #87 in FY2025; new.
87	Zyscovich, LLC Top NAICS codes 541330 Engineering Services	$982,372	0.1%	Rank history: #76 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
88	Catapult Learning Patriot LLC Top NAICS codes 611710 Educational Support Services	$979,347	0.1%	Rank history: not on the FY2021 list, #52 in FY2023 and not on the FY2024–FY2025 lists; up 15 since FY2021.
89	Overdrive, Inc. Top NAICS codes 519130 Internet Publishing and Broadcasting and Web Search Portals	$953,108	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	Zee Technologies Inc. Top NAICS codes 339944 Carbon Paper and Inked Ribbon Manufacturing	$928,463	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Nippon Telegraph and Telephone Corporation 2 awardees, including Nihon Meccs Co.,Ltd. and Docomo Pacific, Inc. Top NAICS codes 238990 All Other Specialty Trade Contractors 517312 Wireless Telecommunications Carriers (except Satellite)	$916,666	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 226 since FY2021.
92	Eight Co.,Ltd. Top NAICS codes 485410 School and Employee Bus Transportation	$913,058	0.1%	Rank history: not on the FY2021 list, #88 in FY2023, #57 in FY2024 and #59 in FY2025; up 48 since FY2021.
93	Universal Services Provider LLC Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$911,527	0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; down 13 since FY2021.
94	Sesame Workshop Top NAICS codes 512110 Motion Picture and Video Production	$906,014	0.1%	Rank history: not on the FY2021 list, #83 in FY2023 and not on the FY2024–FY2025 lists; new.
95	Turner Construction Company Through Sociedad Espanola De Montajes Industriales SA Top NAICS codes 236220 Commercial and Institutional Building Construction	$879,212	0.1%	Rank history: #83 in FY2021 and not on the FY2023–FY2025 lists; down 12 since FY2021.
96	Hipfner-Reisen Inhaber: Ines Krell E.k. Top NAICS codes 485410 School and Employee Bus Transportation	$876,422	0.1%	Rank history: #98 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
97	Asi-Brymak JV Top NAICS codes 238220 Plumbing, Heating, and Air-Conditioning Contractors	$864,335	0.1%	Rank history: not on the FY2021 list, #77 in FY2023, #86 in FY2024 and not on the FY2025 list; new.
98	Alltran Education Inc. Through Mcgraw Hill LLC Top NAICS codes 511130 Book Publishers	$858,977	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Ahntech Inc. Top NAICS codes 236220 Commercial and Institutional Building Construction	$852,665	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	Sanyu-Shoji Co., Ltd. Top NAICS codes 485410 School and Employee Bus Transportation	$852,603	0.1%	Rank history: not on the FY2021 list, #81 in FY2023, not on the FY2024 list and #98 in FY2025; up 34 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 $886 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