Top 100 Contractors in PSC DF10: IT and Telecom – IT Management as a Service, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	REI Systems Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$46,458,848	8.0%	Rank history: #2 in FY2021, #2 in FY2023, #2 in FY2024 and #3 in FY2025; up 1 since FY2021.
2	Verizon Communications Inc. 3 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon New Jersey Inc. Top agencies DOJ (Department of Justice) Commerce (Department of Commerce) USAF (Department of the Air Force)	$42,821,139	7.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 136 since FY2021.
3	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal Data Solutions, LLC and Asrc Federal System Solutions LLC Top agencies NASA (National Aeronautics and Space Administration)	$34,706,626	6.0%	Rank history: #4 in FY2021, #6 in FY2023, #7 in FY2024 and #15 in FY2025; up 1 since FY2021.
4	Digital Management LLC Top agencies HHS (Department of Health and Human Services)	$29,109,759	5.0%	Rank history: #6 in FY2021, #5 in FY2023, #3 in FY2024 and #4 in FY2025; up 2 since FY2021.
5	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies USAF (Department of the Air Force)	$23,799,994	4.1%	Rank history: not on the FY2021 list, #3 in FY2023 and not on the FY2024–FY2025 lists; new.
6	Spire Global Subsidiary, Inc. Top agencies Commerce (Department of Commerce)	$17,946,500	3.1%	Rank history: #43 in FY2021 and not on the FY2023–FY2025 lists; up 37 since FY2021.
7	General Dynamics Corporation Through General Dynamics Information Technology, Inc. Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security)	$17,309,699	3.0%	Rank history: #26 in FY2021, #12 in FY2023, #5 in FY2024 and #6 in FY2025; up 19 since FY2021.
8	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force)	$13,746,657	2.4%	Rank history: #7 in FY2021, #9 in FY2023, #9 in FY2024 and #29 in FY2025; down 1 since FY2021.
9	VET Advisor LLC Through Three Wire Systems, LLC Top agencies VA (Department of Veterans Affairs) GSA (General Services Administration)	$12,655,081	2.2%	Rank history: #18 in FY2021, #8 in FY2023, #32 in FY2024 and not on the FY2025 list; up 9 since FY2021.
10	D7, LLC Top agencies USUHS (DOD Uniformed Services University of the Health Sciences)	$11,460,509	2.0%	Rank history: #8 in FY2021, #24 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
11	Microsoft Corporation Top agencies DHS (Department of Homeland Security) DOS (Department of State)	$10,572,684	1.8%	Rank history: #15 in FY2021, #18 in FY2023, #22 in FY2024 and #28 in FY2025; up 4 since FY2021.
12	Creative It Solutions LLC Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$10,016,894	1.7%	Rank history: #13 in FY2021, #13 in FY2023, #6 in FY2024 and #18 in FY2025; up 1 since FY2021.
13	Impres Technology Solutions, Inc. Top agencies DOL (Department of Labor)	$8,689,602	1.5%	Rank history: #24 in FY2021, #7 in FY2023, #11 in FY2024 and #17 in FY2025; up 11 since FY2021.
14	Lynker Corporation Top agencies Commerce (Department of Commerce)	$8,433,865	1.5%	Rank history: #53 in FY2021, #16 in FY2023, #23 in FY2024 and #16 in FY2025; up 39 since FY2021.
15	Tista Science and Technology Corporation Top agencies HHS (Department of Health and Human Services)	$7,453,546	1.3%	Rank history: not on the FY2021 list, #14 in FY2023 and not on the FY2024–FY2025 lists; new.
16	Lintech Global Inc. Top agencies DODIG (Department of Defense Inspector General) EPA (Environmental Protection Agency)	$7,357,508	1.3%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; up 65 since FY2021.
17	Guidehouse Inc. 3 awardees Top agencies HHS (Department of Health and Human Services)	$7,025,117	1.2%	Rank history: #14 in FY2021, #33 in FY2023, #42 in FY2024 and not on the FY2025 list; down 3 since FY2021.
18	Iron Mountain Incorporated Through Iron Mountain Information Management LLC Top agencies Commerce (Department of Commerce)	$6,860,836	1.2%	Rank history: #9 in FY2021, #40 in FY2023, #31 in FY2024 and not on the FY2025 list; down 9 since FY2021.
19	Insight Public Sector Inc. 2 awardees Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy) DODIG (Department of Defense Inspector General)	$6,669,892	1.2%	Rank history: #45 in FY2021, #98 in FY2023, #51 in FY2024 and not on the FY2025 list; up 26 since FY2021.
20	NTT Data Fedhealth, Inc. Top agencies HHS (Department of Health and Human Services)	$6,324,136	1.1%	Rank history: #86 in FY2021 and not on the FY2023–FY2025 lists; up 66 since FY2021.
21	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DHS (Department of Homeland Security)	$6,281,081	1.1%	Rank history: not on the FY2021 list, #30 in FY2023, #39 in FY2024 and not on the FY2025 list; new.
22	Gama-1 Technologies, LLC Top agencies Commerce (Department of Commerce)	$6,187,739	1.1%	Rank history: not on the FY2021 list, #10 in FY2023, #8 in FY2024 and #11 in FY2025; new.
23	Luther Consulting LLC Top agencies HHS (Department of Health and Human Services)	$6,006,780	1.0%	Rank history: not on the FY2021 list, not on the FY2023 list, #28 in FY2024 and #31 in FY2025; new.
24	Carahsoft Technology Corp Top agencies DISA (Defense Information Systems Agency) Commerce (Department of Commerce) Navy (Department of the Navy)	$5,789,514	1.0%	Rank history: #35 in FY2021, #15 in FY2023, #77 in FY2024 and #27 in FY2025; up 11 since FY2021.
25	Saitech Inc. Top agencies NASA (National Aeronautics and Space Administration)	$5,709,805	1.0%	Rank history: not on the FY2021 list, #21 in FY2023, #35 in FY2024 and not on the FY2025 list; up 88 since FY2021.
26	On Assignment, Inc. Through ECS Federal, LLC Top agencies DHS (Department of Homeland Security)	$5,623,366	1.0%	Rank history: #87 in FY2021, #20 in FY2023 and not on the FY2024–FY2025 lists; up 61 since FY2021.
27	Mano Lani LLC Top agencies USAF (Department of the Air Force)	$5,275,955	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
28	Strategi Consulting, LLC Top agencies USAF (Department of the Air Force)	$5,223,148	0.9%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
29	Confederated Salish and Kootenai Tribes Through S&K Mission Support, LLC Top agencies USAF (Department of the Air Force)	$5,055,193	0.9%	Rank history: not on the FY2021 list, #28 in FY2023, #65 in FY2024 and not on the FY2025 list; new.
30	Sabre Systems, LLC Top agencies Navy (Department of the Navy) Commerce (Department of Commerce)	$4,889,633	0.8%	Rank history: #33 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
31	V3Gate, LLC Top agencies DOJ (Department of Justice) DOL (Department of Labor)	$4,756,692	0.8%	Rank history: #60 in FY2021, #49 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2021.
32	Bixal Solutions Incorporated Top agencies Commerce (Department of Commerce)	$4,683,099	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
33	Countertrade Products, Inc. Top agencies DOL (Department of Labor) USAID (US Agency for International Development) USAF (Department of the Air Force)	$4,405,339	0.8%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 112 since FY2021.
34	Biswas Information Technology Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$4,382,638	0.8%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; up 25 since FY2021.
35	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture)	$4,353,744	0.8%	Rank history: #40 in FY2021, #27 in FY2023, not on the FY2024 list and #53 in FY2025; up 5 since FY2021.
36	Integral Federal, Inc. Top agencies DOS (Department of State)	$3,917,398	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
37	Actionet Inc. Top agencies Commerce (Department of Commerce)	$3,622,074	0.6%	Rank history: #94 in FY2021, #17 in FY2023, #45 in FY2024 and #30 in FY2025; up 57 since FY2021.
38	Sehmi Enterprise, Inc. Top agencies HHS (Department of Health and Human Services)	$3,552,898	0.6%	Rank history: not on the FY2021 list, #43 in FY2023, #53 in FY2024 and #56 in FY2025; new.
39	Veteran Information Technologies, LLC Top agencies USAF (Department of the Air Force)	$3,474,081	0.6%	Rank history: #29 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
40	Four LLC Top agencies DOL (Department of Labor) ED (Department of Education) Commerce (Department of Commerce)	$3,440,347	0.6%	Rank history: #58 in FY2021, #25 in FY2023, #69 in FY2024 and not on the FY2025 list; up 18 since FY2021.
41	Nana Regional Corporation Inc 2 awardees, including Tuvli LLC and Affigent, LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$3,436,830	0.6%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; down 25 since FY2021.
42	RTX Corporation 2 awardees, including Arinc Incorporated and Raytheon Company Top agencies Commerce (Department of Commerce)	$3,426,625	0.6%	Rank history: #46 in FY2021 and not on the FY2023–FY2025 lists; up 4 since FY2021.
43	Boecore, LLC Top agencies USAF (Department of the Air Force)	$3,221,534	0.6%	Rank history: #63 in FY2021 and not on the FY2023–FY2025 lists; up 20 since FY2021.
44	Systems Integration & Development Inc. Top agencies Commerce (Department of Commerce)	$3,207,777	0.6%	Rank history: #32 in FY2021, #44 in FY2023, #52 in FY2024 and #62 in FY2025; down 12 since FY2021.
45	Secunetics Inc. Top agencies DOI (Department of the Interior)	$3,041,208	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
46	Gartner, Inc. Top agencies CFPB (Consumer Financial Protection Bureau) USDA (Department of Agriculture) Treasury (Department of the Treasury)	$2,962,968	0.5%	Rank history: #44 in FY2021, #38 in FY2023, #27 in FY2024 and #88 in FY2025; down 2 since FY2021.
47	Software Information Resource Corp 2 awardees Top agencies Commerce (Department of Commerce) GSA (General Services Administration) HHS (Department of Health and Human Services)	$2,917,343	0.5%	Rank history: #34 in FY2021, #53 in FY2023, #58 in FY2024 and #72 in FY2025; down 13 since FY2021.
48	Dark Wolf Solutions, LLC Top agencies Navy (Department of the Navy)	$2,888,508	0.5%	Rank history: #37 in FY2021, #48 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2021.
49	Redsky LLC Top agencies USSOCOM (United States Special Operations Command)	$2,746,758	0.5%	Rank history: #54 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
50	Soft TECH Consulting, Inc. Top agencies FCC (Federal Communications Commission)	$2,688,765	0.5%	Rank history: not on the FY2021 list, #57 in FY2023, #85 in FY2024 and not on the FY2025 list; new.
51	Kci-Acuity, LLC Top agencies DHS (Department of Homeland Security)	$2,665,410	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
52	Sri Consulting Inc. Top agencies HHS (Department of Health and Human Services)	$2,599,849	0.4%	Rank history: not on the FY2021 list, #81 in FY2023 and not on the FY2024–FY2025 lists; new.
53	ITC Federal, LLC Top agencies Commerce (Department of Commerce) DOJ (Department of Justice)	$2,543,256	0.4%	Rank history: #95 in FY2021, #41 in FY2023, #47 in FY2024 and #21 in FY2025; up 42 since FY2021.
54	Broadleaf, Inc. Top agencies DOI (Department of the Interior)	$2,534,230	0.4%	Rank history: not on the FY2021 list, #58 in FY2023 and not on the FY2024–FY2025 lists; new.
55	Navitas Business Consulting Inc Top agencies HHS (Department of Health and Human Services)	$2,522,710	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
56	H.i.g. Capital Management Inc. Through Iron Bow Technologies, LLC Top agencies DOJ (Department of Justice)	$2,375,725	0.4%	Rank history: not on the FY2021 list, #11 in FY2023 and not on the FY2024–FY2025 lists; up 165 since FY2021.
57	Digital Infuzion, LLC Top agencies HHS (Department of Health and Human Services)	$2,302,490	0.4%	Rank history: #50 in FY2021, #64 in FY2023, #96 in FY2024 and #94 in FY2025; down 7 since FY2021.
58	Impyrian LLC Top agencies DOE (Department of Energy)	$2,020,598	0.3%	Rank history: #47 in FY2021, #91 in FY2023, #83 in FY2024 and #61 in FY2025; down 11 since FY2021.
59	Aatd LLC Top agencies USAF (Department of the Air Force)	$1,999,116	0.3%	Rank history: not on the FY2021 list, #73 in FY2023 and not on the FY2024–FY2025 lists; new.
60	Kingfisher Systems, Inc. Top agencies DFAS (Defense Finance and Accounting Service)	$1,974,727	0.3%	Rank history: #49 in FY2021, #71 in FY2023, not on the FY2024 list and #69 in FY2025; down 11 since FY2021.
61	Oil Price Information Service LLC Through IHS Global Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$1,965,822	0.3%	Rank history: not on the FY2021 list, #65 in FY2023 and not on the FY2024–FY2025 lists; new.
62	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$1,902,446	0.3%	Rank history: #11 in FY2021, #62 in FY2023 and not on the FY2024–FY2025 lists; down 51 since FY2021.
63	Easy Dynamics Corporation Top agencies Commerce (Department of Commerce)	$1,902,114	0.3%	Rank history: #64 in FY2021, #74 in FY2023, #57 in FY2024 and not on the FY2025 list; up 1 since FY2021.
64	New TECH Solutions, Inc. Top agencies DISA (Defense Information Systems Agency) WHS (DOD Washington Headquarters Service) HHS (Department of Health and Human Services)	$1,897,722	0.3%	Rank history: not on the FY2021 list, #67 in FY2023, #50 in FY2024 and #52 in FY2025; up 43 since FY2021.
65	G2S Corp Top agencies USAF (Department of the Air Force)	$1,818,020	0.3%	Rank history: not on the FY2021 list, #90 in FY2023 and not on the FY2024–FY2025 lists; new.
66	Fcn, Inc. Top agencies SEC (Securities and Exchange Commission) DHS (Department of Homeland Security) DISA (Defense Information Systems Agency)	$1,795,677	0.3%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 49 since FY2021.
67	Red Alpha LLC Top agencies DISA (Defense Information Systems Agency)	$1,728,439	0.3%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 12 since FY2021.
68	Octo Consulting Group Inc. Top agencies DOJ (Department of Justice)	$1,690,641	0.3%	Rank history: not on the FY2021 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new.
69	Johnson Controls Security Solutions LLC Top agencies DHS (Department of Homeland Security)	$1,551,536	0.3%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 59 since FY2021.
70	University Corporation for Atmospheric Research Top agencies Commerce (Department of Commerce)	$1,541,602	0.3%	Rank history: not on the FY2021 list, #86 in FY2023, not on the FY2024 list and #87 in FY2025; new.
71	Magnum Multimedia, Inc. Top agencies Treasury (Department of the Treasury)	$1,487,296	0.3%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
72	Soliel LLC Top agencies DISA (Defense Information Systems Agency)	$1,421,241	0.2%	Rank history: not on the FY2021 list, #80 in FY2023 and not on the FY2024–FY2025 lists; new.
73	Clinicomp International Inc. Top agencies VA (Department of Veterans Affairs)	$1,418,220	0.2%	Rank history: #83 in FY2021, #82 in FY2023, #78 in FY2024 and #65 in FY2025; up 10 since FY2021.
74	TBM Technology Consulting LLC Top agencies DISA (Defense Information Systems Agency)	$1,405,882	0.2%	Rank history: #98 in FY2021, #99 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2021.
75	Govsmart, Inc. Top agencies DISA (Defense Information Systems Agency) DOL (Department of Labor) Commerce (Department of Commerce)	$1,398,751	0.2%	Rank history: #73 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
76	Lion Federal, LLC Top agencies Army (Department of the Army)	$1,395,401	0.2%	Rank history: not on the FY2021 list, #45 in FY2023, #64 in FY2024 and #57 in FY2025; new.
77	A-Tek, Inc. Through Mackson Consulting, LLC Top agencies HHS (Department of Health and Human Services)	$1,360,036	0.2%	Rank history: not on the FY2021 list, #100 in FY2023, #99 in FY2024 and not on the FY2025 list; new.
78	Constellation Software Inc 2 awardees, including Picis Clinical Solutions, Inc. and Computrition, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$1,318,238	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 44 since FY2021.
79	International Business Machines Corporation Top agencies DECA (Defense Commissary Agency)	$1,272,431	0.2%	Rank history: #62 in FY2021, not on the FY2023–FY2024 lists and #60 in FY2025; down 17 since FY2021.
80	Ho-Chunk Shared Services Company Top agencies DHS (Department of Homeland Security)	$1,262,458	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	UnitedHealth Group Incorporated Through Optumserve Technology Services, Inc. Top agencies ED (Department of Education)	$1,254,214	0.2%	Rank history: #48 in FY2021, not on the FY2023 list, #43 in FY2024 and #66 in FY2025; down 33 since FY2021.
82	Forrester Research, Inc. Top agencies SSA (Social Security Administration) DHS (Department of Homeland Security) GSA (General Services Administration)	$1,251,044	0.2%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; down 5 since FY2021.
83	Linkitall LLC Top agencies Army (Department of the Army)	$1,248,080	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 45 since FY2021.
84	Triple Point Security Inc. Top agencies HHS (Department of Health and Human Services)	$1,149,516	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	Turningpoint-Dsfederal JV LLC Top agencies HHS (Department of Health and Human Services)	$1,119,073	0.2%	Rank history: #72 in FY2021 and not on the FY2023–FY2025 lists; down 13 since FY2021.
86	Prince of Wales Tribal Enterprise Consortium LLC Top agencies DOI (Department of the Interior)	$1,093,884	0.2%	Rank history: not on the FY2021 list, #72 in FY2023 and not on the FY2024–FY2025 lists; new.
87	Digitaledge JV LLC Top agencies DHS (Department of Homeland Security)	$1,091,882	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
88	CDW Corporation Through CDW Government LLC Top agencies DOS (Department of State) Smithsonian (Smithsonian Institution)	$1,068,960	0.2%	Rank history: #57 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
89	Purisolve, Inc. Top agencies Treasury (Department of the Treasury)	$1,066,100	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
90	Advanced Computer Concepts, Inc. Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$1,060,909	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 100 since FY2021.
91	Wits Solutions Inc. Top agencies Army (Department of the Army)	$1,021,566	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	Obsidian Solutions Group LLC Top agencies USAF (Department of the Air Force)	$961,275	0.2%	Rank history: #89 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
93	Insignia Technology Services, LLC Top agencies VA (Department of Veterans Affairs)	$959,957	0.2%	Rank history: #78 in FY2021 and not on the FY2023–FY2025 lists; down 15 since FY2021.
94	Tacg, LLC Top agencies HHS (Department of Health and Human Services)	$926,613	0.2%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 56 since FY2021.
95	Bahfed Corp Top agencies DISA (Defense Information Systems Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$916,147	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #34 in FY2025; new.
96	Bowhead Total Enterprise Solutions, LLC Top agencies Army (Department of the Army)	$909,099	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
97	Interimage, Inc. Top agencies DOS (Department of State)	$902,031	0.2%	Rank history: #79 in FY2021 and not on the FY2023–FY2025 lists; down 18 since FY2021.
98	Xfinion Inc. Top agencies DOS (Department of State)	$867,109	0.2%	Rank history: not on the FY2021 list, #66 in FY2023, #79 in FY2024 and #86 in FY2025; new.
99	Kambrian Corporation Top agencies Commerce (Department of Commerce)	$859,215	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	Science Applications International Corporation 2 awardees Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture) USAF (Department of the Air Force)	$774,506	0.1%	Rank history: #97 in FY2021 and not on the FY2023–FY2025 lists; down 3 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 $578 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