Top 100 Contractors in PSC DD01: IT and Telecom – Service Delivery Support Services: ITSM, Operations Center, Project/PM (Labor), FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	At&T Inc. 15 awardees, including At&T Enterprises, LLC, Att Mobility LLC and At&T Mobility National Accounts LLC Top agencies VA (Department of Veterans Affairs) EPA (Environmental Protection Agency) DHS (Department of Homeland Security)	$255,297,531	15.9%	Rank history: #1 in FY2021, #7 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2021.
2	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army) Commerce (Department of Commerce)	$157,693,124	9.8%	Rank history: #3 in FY2021, #4 in FY2023, #2 in FY2024 and #1 in FY2025; up 1 since FY2021.
3	DRS Global Enterprise Solutions Inc 2 awardees, including Global Enterprise Solutions, Inc. Top agencies USSOCOM (United States Special Operations Command) Army (Department of the Army)	$117,011,010	7.3%	Rank history: not on the FY2021 list, #3 in FY2023 and not on the FY2024–FY2025 lists; new.
4	Booz Allen Hamilton Holding Corporation 2 awardees, including Booz Allen Hamilton Inc. and Middle Bay Solutions II, LLC Top agencies DHS (Department of Homeland Security) DHRA (Defense Human Resources Activity) Navy (Department of the Navy)	$43,070,949	2.7%	Rank history: #22 in FY2021, #10 in FY2023, #9 in FY2024 and #5 in FY2025; up 18 since FY2021.
5	Leidos Holdings, Inc. 3 awardees, including Leidos, Inc. Top agencies HHS (Department of Health and Human Services) FTC (Federal Trade Commission) Treasury (Department of the Treasury)	$39,592,432	2.5%	Rank history: #10 in FY2021, #1 in FY2023, #1 in FY2024 and #2 in FY2025; up 5 since FY2021.
6	Verizon Communications Inc. 4 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Verizon New England Inc. Top agencies MDA (DOD Missile Defense Agency) DISA (Defense Information Systems Agency) Army (Department of the Army)	$36,854,699	2.3%	Rank history: #16 in FY2021 and not on the FY2023–FY2025 lists; up 10 since FY2021.
7	HP Enterprise Services LLC 4 awardees, including Peraton Enterprise Solutions LLC, Peraton Technology Services Inc. and Peraton Inc. Top agencies DHRA (Defense Human Resources Activity) DISA (Defense Information Systems Agency) DHS (Department of Homeland Security)	$36,138,804	2.3%	Rank history: #7 in FY2021, #9 in FY2023, #82 in FY2024 and not on the FY2025 list; unchanged since FY2021.
8	Stratascor, LLC Top agencies Navy (Department of the Navy)	$32,273,378	2.0%	Rank history: not on the FY2021 list, #11 in FY2023 and not on the FY2024–FY2025 lists; new.
9	Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$22,993,607	1.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
10	Blue TECH Inc. Top agencies Commerce (Department of Commerce) NRC (Nuclear Regulatory Commission) DOL (Department of Labor)	$22,820,558	1.4%	Rank history: #14 in FY2021, #87 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
11	CACI International Inc. 2 awardees, including Caci Nss, LLC and Caci Enterprise Solutions, LLC Top agencies DHS (Department of Homeland Security) NARA (National Archives and Records Administration) DLA (Defense Logistics Agency)	$20,908,489	1.3%	Rank history: #11 in FY2021, #18 in FY2023, not on the FY2024 list and #18 in FY2025; unchanged since FY2021.
12	Iron Vine Security LLC Top agencies Commerce (Department of Commerce)	$20,907,569	1.3%	Rank history: #25 in FY2021, not on the FY2023 list, #14 in FY2024 and #24 in FY2025; up 13 since FY2021.
13	Acuity Inc. Top agencies DHS (Department of Homeland Security)	$20,855,609	1.3%	Rank history: not on the FY2021 list, #27 in FY2023 and not on the FY2024–FY2025 lists; new.
14	Capgemini Government Solutions LLC Top agencies Army (Department of the Army)	$19,862,537	1.2%	Rank history: not on the FY2021 list, #13 in FY2023, #26 in FY2024 and not on the FY2025 list; new.
15	Creative It Solutions LLC Top agencies DCAA (Defense Contract Audit Agency)	$19,121,688	1.2%	Rank history: #9 in FY2021, #24 in FY2023, #19 in FY2024 and #20 in FY2025; down 6 since FY2021.
16	C4 Planning Solutions, LLC Top agencies Navy (Department of the Navy)	$17,792,453	1.1%	Rank history: #13 in FY2021, #20 in FY2023, #17 in FY2024 and #17 in FY2025; down 3 since FY2021.
17	Qbase, LLC Top agencies OSD (Office of the Secretary of Defense)	$17,289,628	1.1%	Rank history: #8 in FY2021, #23 in FY2023, #23 in FY2024 and #23 in FY2025; down 9 since FY2021.
18	Vista Defense Technologies, LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$16,318,700	1.0%	Rank history: #19 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
19	Alaska Native Government Services LLC 2 awardees, including Copper River Infrastructure Services LLC and Copper River Cyber Solutions, LLC Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$16,261,056	1.0%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
20	Science Applications International Corporation 3 awardees Top agencies Commerce (Department of Commerce) DOT (Department of Transportation) Treasury (Department of the Treasury)	$15,801,560	1.0%	Rank history: #35 in FY2021, #5 in FY2023, #4 in FY2024 and #3 in FY2025; up 15 since FY2021.
21	Alethix, LLC Top agencies DHS (Department of Homeland Security)	$15,247,412	0.9%	Rank history: #28 in FY2021, #29 in FY2023, #21 in FY2024 and not on the FY2025 list; up 7 since FY2021.
22	Four Points Technology, L.L.C. Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$14,424,304	0.9%	Rank history: #4 in FY2021, #12 in FY2023, #36 in FY2024 and #77 in FY2025; down 18 since FY2021.
23	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies USTRANSCOM (Department of Defense United States Transportation Command)	$14,409,548	0.9%	Rank history: not on the FY2021 list, #39 in FY2023 and not on the FY2024–FY2025 lists; new.
24	Accenture Inc. Through Accenture Federal Services LLC Top agencies DOE (Department of Energy) USDA (Department of Agriculture)	$14,094,927	0.9%	Rank history: not on the FY2021 list, #6 in FY2023 and not on the FY2024–FY2025 lists; new.
25	Mythics, LLC 2 awardees, including Emergent, LLC Top agencies HUD (Department of Housing and Urban Development) DHA (Defense Health Agency) Commerce (Department of Commerce)	$12,021,205	0.7%	Rank history: #76 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; up 51 since FY2021.
26	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies Commerce (Department of Commerce) NRC (Nuclear Regulatory Commission) DHS (Department of Homeland Security)	$11,200,978	0.7%	Rank history: #24 in FY2021, #32 in FY2023, #56 in FY2024 and not on the FY2025 list; down 2 since FY2021.
27	Trident Technologies, LLC Top agencies Army (Department of the Army)	$10,753,368	0.7%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 92 since FY2021.
28	Leidos, Inc. Top agencies HHS (Department of Health and Human Services)	$10,009,149	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
29	TCG Inc. Top agencies MCC (Millennium Challenge Corporation) USOGE (US Office of Government Ethics) Treasury (Department of the Treasury)	$9,672,328	0.6%	Rank history: #32 in FY2021, #45 in FY2023, #39 in FY2024 and #66 in FY2025; up 3 since FY2021.
30	Accenture Federal Services LLC Top agencies USDA (Department of Agriculture) DOI (Department of the Interior) DLA (Defense Logistics Agency)	$9,529,480	0.6%	Rank history: #17 in FY2021 and not on the FY2023–FY2025 lists; down 13 since FY2021.
31	Adg-Rei Technology Ventures, LLC Top agencies DHS (Department of Homeland Security)	$9,421,363	0.6%	Rank history: not on the FY2021 list, #14 in FY2023, #11 in FY2024 and #11 in FY2025; new.
32	Spatial Front Inc. Top agencies Commerce (Department of Commerce)	$9,139,225	0.6%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 175 since FY2021.
33	Leonardo S.p.A. Through Global Enterprise Solutions, Inc. Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$9,060,948	0.6%	Rank history: #2 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
34	Microhealth LLC Top agencies HHS (Department of Health and Human Services)	$8,839,600	0.6%	Rank history: #26 in FY2021, #25 in FY2023, #18 in FY2024 and #25 in FY2025; down 8 since FY2021.
35	Thundercat Technology LLC Top agencies Commerce (Department of Commerce) NRC (Nuclear Regulatory Commission)	$8,650,010	0.5%	Rank history: not on the FY2021 list, #59 in FY2023, #48 in FY2024 and #42 in FY2025; new.
36	Tista Science and Technology Corporation Top agencies USDA (Department of Agriculture) DLA (Defense Logistics Agency)	$8,639,295	0.5%	Rank history: not on the FY2021 list, #26 in FY2023, #35 in FY2024 and #34 in FY2025; new.
37	ICF International, Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$8,577,903	0.5%	Rank history: not on the FY2021 list, #38 in FY2023 and not on the FY2024–FY2025 lists; new.
38	DV United LLC Top agencies DHS (Department of Homeland Security)	$8,560,792	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
39	Motorola Inc Through Motorola Solutions, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$7,998,622	0.5%	Rank history: #23 in FY2021 and not on the FY2023–FY2025 lists; down 16 since FY2021.
40	Koniag Data Solutions LLC Top agencies NARA (National Archives and Records Administration)	$7,945,243	0.5%	Rank history: not on the FY2021 list, #16 in FY2023, #83 in FY2024 and #91 in FY2025; new.
41	New River Systems Corporation Top agencies DLA (Defense Logistics Agency)	$7,936,234	0.5%	Rank history: #31 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
42	Telos Corporation Top agencies USSOCOM (United States Special Operations Command)	$7,863,370	0.5%	Rank history: #27 in FY2021 and not on the FY2023–FY2025 lists; down 15 since FY2021.
43	Silosmashers, Inc. Top agencies DHS (Department of Homeland Security)	$7,360,642	0.5%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
44	Teksynap Corporation Top agencies DTRA (Defense Threat Reduction Agency) DLA (Defense Logistics Agency) NRC (Nuclear Regulatory Commission)	$7,138,464	0.4%	Rank history: #33 in FY2021, #33 in FY2023, #40 in FY2024 and #43 in FY2025; down 11 since FY2021.
45	Horizon Industries, Limited Top agencies DLA (Defense Logistics Agency)	$6,897,457	0.4%	Rank history: not on the FY2021 list, #35 in FY2023, #54 in FY2024 and not on the FY2025 list; new.
46	Corp Ten International Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$6,890,152	0.4%	Rank history: not on the FY2021 list, #52 in FY2023 and not on the FY2024–FY2025 lists; up 60 since FY2021.
47	Changeis, Inc. Top agencies DOT (Department of Transportation)	$6,447,960	0.4%	Rank history: not on the FY2021 list, #37 in FY2023, #46 in FY2024 and #35 in FY2025; new.
48	Computer World Services, Corp. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$6,431,939	0.4%	Rank history: #38 in FY2021, #51 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2021.
49	Geocent L.L.C. Through Sev1Tech, LLC Top agencies DHS (Department of Homeland Security)	$6,103,794	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
50	Validatek-Citi, LLC Top agencies DHS (Department of Homeland Security)	$5,980,527	0.4%	Rank history: #39 in FY2021, #56 in FY2023, #59 in FY2024 and #92 in FY2025; down 11 since FY2021.
51	Agile Defense, LLC Top agencies Army (Department of the Army)	$5,923,916	0.4%	Rank history: #58 in FY2021, #84 in FY2023, not on the FY2024 list and #41 in FY2025; up 7 since FY2021.
52	Siemens Aktiengesellschaft Through Siemens Government Technologies Inc. Top agencies Navy (Department of the Navy)	$5,919,183	0.4%	Rank history: #48 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
53	Earth Resources Technology, LLC Top agencies Commerce (Department of Commerce)	$5,900,347	0.4%	Rank history: not on the FY2021 list, #57 in FY2023, #57 in FY2024 and #55 in FY2025; new.
54	Electrosoft Services, LLC 2 awardees Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$5,789,253	0.4%	Rank history: #86 in FY2021, #30 in FY2023, #29 in FY2024 and #21 in FY2025; up 32 since FY2021.
55	Technology, Automation & Management, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$5,455,343	0.3%	Rank history: #47 in FY2021, not on the FY2023 list, #58 in FY2024 and #51 in FY2025; down 8 since FY2021.
56	Octo Consulting Group Inc. 2 awardees, including B 3 Group, LLC Top agencies VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$5,446,497	0.3%	Rank history: not on the FY2021 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 101 since FY2021.
57	Logistics Systems Incorporated Top agencies Army (Department of the Army)	$5,401,732	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	KVH Industries Inc. Top agencies DHS (Department of Homeland Security)	$5,301,834	0.3%	Rank history: #34 in FY2021 and not on the FY2023–FY2025 lists; down 24 since FY2021.
59	Information Technology Strategies, Inc. Top agencies DLA (Defense Logistics Agency)	$5,109,360	0.3%	Rank history: #30 in FY2021, #99 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2021.
60	Decisionpoint Corporation Top agencies DOI (Department of the Interior)	$5,048,501	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
61	Quantrum LLC Top agencies USAF (Department of the Air Force)	$5,041,140	0.3%	Rank history: #29 in FY2021 and not on the FY2023–FY2025 lists; down 32 since FY2021.
62	Tiber Creek Consulting Inc. Top agencies Army (Department of the Army)	$4,953,143	0.3%	Rank history: #51 in FY2021, #76 in FY2023, #78 in FY2024 and #67 in FY2025; down 11 since FY2021.
63	Govsmart, Inc. Top agencies SBA (Small Business Administration) Commerce (Department of Commerce) DOE (Department of Energy)	$4,797,277	0.3%	Rank history: #37 in FY2021, #63 in FY2023, #89 in FY2024 and not on the FY2025 list; down 26 since FY2021.
64	Tyto Athene, LLC Through Tyto Government Solutions Inc. Top agencies Navy (Department of the Navy)	$4,727,877	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
65	Essnova Solutions, Inc. Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$4,692,376	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 75 since FY2021.
66	Credence Management Solutions Limited Liability Company Top agencies DLA (Defense Logistics Agency)	$4,689,632	0.3%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 42 since FY2021.
67	Clear Vantage Point Solutions LLC Top agencies VA (Department of Veterans Affairs)	$4,450,936	0.3%	Rank history: not on the FY2021 list, not on the FY2023 list, #90 in FY2024 and not on the FY2025 list; new.
68	Omni Fed LLC Top agencies USAF (Department of the Air Force)	$4,411,681	0.3%	Rank history: #94 in FY2021, #47 in FY2023, #49 in FY2024 and #15 in FY2025; up 26 since FY2021.
69	A1M Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$4,410,069	0.3%	Rank history: #42 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; down 27 since FY2021.
70	International Business Machines Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,323,624	0.3%	Rank history: #66 in FY2021, #72 in FY2023, #71 in FY2024 and #50 in FY2025; down 4 since FY2021.
71	Seneca Strategic Partners, LLC Top agencies USDA (Department of Agriculture)	$4,249,980	0.3%	Rank history: not on the FY2021 list, #92 in FY2023, #76 in FY2024 and #79 in FY2025; new.
72	Reveal Global Consulting LLC Top agencies Commerce (Department of Commerce)	$3,995,832	0.2%	Rank history: #41 in FY2021 and not on the FY2023–FY2025 lists; down 31 since FY2021.
73	Prometheus Computing, LLC Top agencies Commerce (Department of Commerce) EAC (US Election Assistance Commission)	$3,653,027	0.2%	Rank history: #77 in FY2021, #100 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
74	Analytic Services Inc. Through Advanced Technology International Top agencies Navy (Department of the Navy)	$3,649,084	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	The Chenega Corporation 2 awardees, including Chenega Agile Real-Time Solutions LLC and Chenega Analytic Business Solutions, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,644,398	0.2%	Rank history: #60 in FY2021 and not on the FY2023–FY2025 lists; down 15 since FY2021.
76	DRT Strategies, Inc. Top agencies HHS (Department of Health and Human Services)	$3,599,366	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Scitec Innovations LLC Top agencies USAF (Department of the Air Force)	$3,502,636	0.2%	Rank history: not on the FY2021 list, #75 in FY2023, #55 in FY2024 and #61 in FY2025; new.
78	Lumen Technologies, Inc. 5 awardees, including Lumen Technologies Government Solutions, Inc., Level 3 Communications, LLC and The United Telephone Company of Pennsylvania Llc Top agencies OPM (Office of Personnel Management) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$3,393,555	0.2%	Rank history: #12 in FY2021, #2 in FY2023, #12 in FY2024 and not on the FY2025 list; down 66 since FY2021.
79	ITC Federal, LLC Top agencies DHS (Department of Homeland Security)	$3,386,963	0.2%	Rank history: not on the FY2021 list, not on the FY2023 list, #13 in FY2024 and #14 in FY2025; new.
80	Paratus Solutions LLC Top agencies Navy (Department of the Navy)	$3,338,670	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #99 in FY2025; new.
81	Amyx Inc. Top agencies DLA (Defense Logistics Agency) DMEA (Defense Microelectronics Activity)	$3,291,382	0.2%	Rank history: not on the FY2021 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 52 since FY2021.
82	Innovative Management Concepts, Inc. Top agencies USAF (Department of the Air Force)	$3,267,117	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
83	Excella, LLC Top agencies DHS (Department of Homeland Security)	$3,015,059	0.2%	Rank history: #55 in FY2021 and not on the FY2023–FY2025 lists; down 28 since FY2021.
84	Guidehouse Digital LLC Top agencies Commerce (Department of Commerce)	$2,933,403	0.2%	Rank history: not on the FY2021 list, #96 in FY2023 and not on the FY2024–FY2025 lists; new.
85	Huna Totem Corp Through Distributed Computing System Solutions Provider, Inc. Top agencies USSOCOM (United States Special Operations Command)	$2,874,362	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Halvik LLC Top agencies Commerce (Department of Commerce) IMLS (The Institute of Museum and Library Services) DOT (Department of Transportation)	$2,871,417	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
87	GBS Dakota IT, LLC Top agencies Commerce (Department of Commerce)	$2,845,249	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
88	Trillion Technology Solutions Inc. Top agencies SBA (Small Business Administration)	$2,843,669	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	The Gemini 3 Group, Inc. Top agencies Navy (Department of the Navy)	$2,820,524	0.2%	Rank history: #61 in FY2021 and not on the FY2023–FY2025 lists; down 28 since FY2021.
90	Sierra 7 Inc Through Sierra7, Inc. Top agencies USDA (Department of Agriculture)	$2,791,045	0.2%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Dell Federal Systems L.P. 2 awardees, including Dell Marketing L.P. Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DHS (Department of Homeland Security)	$2,772,012	0.2%	Rank history: #53 in FY2021, #28 in FY2023 and not on the FY2024–FY2025 lists; down 38 since FY2021.
92	Datacard Corporation Through Entrust, Inc. Top agencies GSA (General Services Administration)	$2,763,450	0.2%	Rank history: #64 in FY2021 and not on the FY2023–FY2025 lists; down 28 since FY2021.
93	Gama-1 Technologies, LLC Top agencies Commerce (Department of Commerce)	$2,724,869	0.2%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #49 in FY2025; new.
94	Dynamic Systems Inc. Top agencies Commerce (Department of Commerce) SBA (Small Business Administration)	$2,683,148	0.2%	Rank history: #88 in FY2021 and not on the FY2023–FY2025 lists; down 6 since FY2021.
95	Northrop Grumman Corporation 2 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,608,953	0.2%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; down 36 since FY2021.
96	Environmental Systems Research Institute, Inc. Top agencies Commerce (Department of Commerce)	$2,503,762	0.2%	Rank history: #67 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 29 since FY2021.
97	NA Alii Consulting & Sales LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$2,463,772	0.2%	Rank history: #40 in FY2021 and not on the FY2023–FY2025 lists; down 57 since FY2021.
98	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services)	$2,400,000	0.1%	Rank history: #5 in FY2021, #15 in FY2023 and not on the FY2024–FY2025 lists; down 93 since FY2021.
99	Microsoft Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,388,178	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 169 since FY2021.
100	Idoxsolutions, Inc. Top agencies GSA (General Services Administration)	$2,365,219	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.61 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 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