Top 100 Contractors in PSC D302: ADP Systems Development Services, FY2021

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	General Dynamics Corporation 5 awardees, including General Dynamics Information Technology, Inc. and Csra LLC Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) CFTC (Commodity Futures Trading Commission)	$155,079,676	7.0%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	L3Harris Technologies, Inc. 3 awardees, including CAE USA Inc. Top agencies Commerce (Department of Commerce) DOT (Department of Transportation) USAF (Department of the Air Force)	$149,079,064	6.7%	Rank history: #2 in FY2022, #32 in FY2023, #88 in FY2024 and not on the FY2025 list; up 20 since FY2020.
3	Deloitte LLP Through Deloitte Consulting LLP Top agencies HHS (Department of Health and Human Services) DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$108,041,657	4.9%	Rank history: #3 in FY2022, #6 in FY2023, #4 in FY2024 and #5 in FY2025; up 7 since FY2020.
4	Accenture Federal Services LLC 2 awardees Top agencies SEC (Securities and Exchange Commission) DOJ (Department of Justice) DHS (Department of Homeland Security)	$71,366,193	3.2%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
5	CGI Technologies and Solutions Inc. Through CGI Federal Inc. Top agencies DOS (Department of State) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$66,753,410	3.0%	Rank history: #12 in FY2022, #8 in FY2023, #14 in FY2024 and not on the FY2025 list; down 4 since FY2020.
6	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top agencies SEC (Securities and Exchange Commission) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$57,771,823	2.6%	Rank history: #6 in FY2022, #5 in FY2023, #3 in FY2024 and #2 in FY2025; down 2 since FY2020.
7	Jacobs Engineering Group Inc. 2 awardees, including Amentum Technology, Inc. and The Keyw Corporation Top agencies USAF (Department of the Air Force) DOJ (Department of Justice)	$48,010,927	2.2%	Rank history: #18 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
8	Synergy Business Innovation & Solutions Inc. Top agencies DHS (Department of Homeland Security)	$44,330,387	2.0%	Rank history: #28 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
9	Octo Consulting Group Inc. 2 awardees, including Sevatec LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) Commerce (Department of Commerce)	$41,733,474	1.9%	Rank history: #10 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 130 since FY2020.
10	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$41,027,636	1.8%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
11	Science Applications International Corporation 3 awardees, including Engility Services, LLC Top agencies Commerce (Department of Commerce) DOT (Department of Transportation) Army (Department of the Army)	$40,076,285	1.8%	Rank history: #31 in FY2022, #21 in FY2023, #17 in FY2024 and not on the FY2025 list; up 9 since FY2020.
12	International Business Machines Corporation 2 awardees Top agencies DOJ (Department of Justice) GSA (General Services Administration) DHS (Department of Homeland Security)	$39,846,553	1.8%	Rank history: #52 in FY2022, not on the FY2023 list, #6 in FY2024 and not on the FY2025 list; up 180 since FY2020.
13	Newwave Telecom and Technologies, Inc. Top agencies HHS (Department of Health and Human Services)	$38,672,309	1.7%	Rank history: #25 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
14	Slalom, Inc. Top agencies DHS (Department of Homeland Security)	$38,499,204	1.7%	Rank history: #21 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
15	Sossec, Inc. Top agencies Army (Department of the Army)	$37,537,303	1.7%	Rank history: #7 in FY2022, #9 in FY2023, #13 in FY2024 and not on the FY2025 list; down 2 since FY2020.
16	On Assignment, Inc. Through ECS Federal, LLC Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$37,179,798	1.7%	Rank history: #4 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
17	Karsun Solutions LLC Top agencies DHS (Department of Homeland Security) GSA (General Services Administration)	$30,499,566	1.4%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
18	Lockheed Martin Corporation 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy)	$28,496,647	1.3%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
19	CACI International Inc. 4 awardees, including Caci Enterprise Solutions, LLC and Caci Nss, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice) Army (Department of the Army)	$27,292,031	1.2%	Rank history: #16 in FY2022, #7 in FY2023, #31 in FY2024 and not on the FY2025 list; down 16 since FY2020.
20	Maximus Federal Technology Solutions, LLC Top agencies SEC (Securities and Exchange Commission)	$23,643,084	1.1%	Rank history: not on the FY2022–FY2023 lists, #62 in FY2024 and not on the FY2025 list; up 5 since FY2020.
21	Greenzone Solutions LLC Through Team Greenzone JV LLC Top agencies SEC (Securities and Exchange Commission)	$21,646,508	1.0%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
22	Koniag, Inc. 2 awardees, including Eagle Harbor Solutions LLC and Pacarctic, LLC Top agencies DOS (Department of State) DOL (Department of Labor) DOE (Department of Energy)	$21,251,104	1.0%	Rank history: #30 in FY2022, #18 in FY2023, #38 in FY2024 and not on the FY2025 list; up 97 since FY2020.
23	Perspecta Inc. Through Peraton Enterprise Solutions LLC Top agencies GSA (General Services Administration) DOJ (Department of Justice) DHS (Department of Homeland Security)	$21,132,496	1.0%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
24	Maximus Inc. 4 awardees, including Maximus Federal Services, Inc. and Maximus Federal Technology Solutions, LLC Top agencies Commerce (Department of Commerce) Treasury (Department of the Treasury) SEC (Securities and Exchange Commission)	$20,313,743	0.9%	Rank history: not on the FY2022 list, #63 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2020.
25	Favor Techconsulting, LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$19,618,403	0.9%	Rank history: #17 in FY2022, #11 in FY2023, #9 in FY2024 and #7 in FY2025; up 6 since FY2020.
26	Softrams LLC Top agencies HHS (Department of Health and Human Services)	$19,506,871	0.9%	Rank history: #19 in FY2022, #15 in FY2023 and not on the FY2024–FY2025 lists; up 12 since FY2020.
27	Definitive Logic Corporation Top agencies USAF (Department of the Air Force)	$18,981,657	0.9%	Rank history: #35 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; up 55 since FY2020.
28	Leidos Holdings, Inc. 6 awardees, including Leidos, Inc. and Leidos Management Systems Designers, Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice) Navy (Department of the Navy)	$17,529,070	0.8%	Rank history: #24 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 70 since FY2020.
29	Trussworks, Inc. Top agencies USAF (Department of the Air Force)	$16,179,885	0.7%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
30	RTX Corporation 7 awardees, including Raytheon Company Top agencies Army (Department of the Army) DOT (Department of Transportation) USAF (Department of the Air Force)	$16,038,995	0.7%	Rank history: not on the FY2022–FY2025 lists; up 18 since FY2020.
31	Array Information Technology Inc. Top agencies USAF (Department of the Air Force)	$14,372,325	0.6%	Rank history: not on the FY2022–FY2025 lists; up 32 since FY2020.
32	Procentrix, LLC Top agencies SEC (Securities and Exchange Commission) Peace Corps	$13,743,925	0.6%	Rank history: #26 in FY2022, #10 in FY2023, #8 in FY2024 and #9 in FY2025; up 5 since FY2020.
33	Geneva Software, LLC Top agencies DOS (Department of State)	$13,494,489	0.6%	Rank history: not on the FY2022–FY2025 lists; up 27 since FY2020.
34	Assured Information Security, Inc. Top agencies USAF (Department of the Air Force)	$13,468,520	0.6%	Rank history: #51 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
35	STG Group, Inc. Through STG LLC Top agencies DOS (Department of State)	$13,036,919	0.6%	Rank history: #33 in FY2022, #20 in FY2023, #32 in FY2024 and not on the FY2025 list; up 42 since FY2020.
36	Technica Corporation Top agencies DOJ (Department of Justice)	$12,218,440	0.6%	Rank history: not on the FY2022–FY2025 lists; up 74 since FY2020.
37	Advanced Technology Systems Inc. 4 awardees, including Salient Crgt, Inc., Salient Federal Solutions, Inc. and Guident Technologies, Inc. Top agencies Commerce (Department of Commerce) EXIM (Export Import Bank of the US) DHRA (Defense Human Resources Activity)	$12,106,395	0.5%	Rank history: not on the FY2022–FY2025 lists; up 74 since FY2020.
38	Sparksoft Corporation Top agencies HHS (Department of Health and Human Services)	$11,907,869	0.5%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
39	Huntington Ingalls Industries, Inc. Through HII Mission Technologies Corp Top agencies Navy (Department of the Navy)	$11,535,678	0.5%	Rank history: #47 in FY2022, #40 in FY2023, #87 in FY2024 and not on the FY2025 list; up 60 since FY2020.
40	Unisys Corporation Top agencies DOT (Department of Transportation) Commerce (Department of Commerce)	$11,291,836	0.5%	Rank history: not on the FY2022–FY2025 lists; up 7 since FY2020.
41	Ambit Group LLC 3 awardees, including Team Greenzone JV LLC and Greenzone Solutions LLC Top agencies SEC (Securities and Exchange Commission) USDA (Department of Agriculture) DHS (Department of Homeland Security)	$11,049,177	0.5%	Rank history: #11 in FY2022 and not on the FY2023–FY2025 lists; up 174 since FY2020.
42	Ventera LLC Top agencies USDA (Department of Agriculture) DHS (Department of Homeland Security)	$10,897,879	0.5%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
43	Technik Inc. Top agencies SEC (Securities and Exchange Commission) USDA (Department of Agriculture) DOI (Department of the Interior)	$10,894,181	0.5%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
44	Gradkell Systems Inc. Top agencies Army (Department of the Army)	$10,463,823	0.5%	Rank history: #34 in FY2022, #46 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
45	Nippon Telegraph and Telephone Corporation Through NTT Data Federal Services, Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$10,436,112	0.5%	Rank history: #38 in FY2022, #65 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
46	Intergraph Corporation Through Hexagon US Federal, Inc. Top agencies Army (Department of the Army)	$10,396,067	0.5%	Rank history: #70 in FY2022, #31 in FY2023, #40 in FY2024 and not on the FY2025 list; up 21 since FY2020.
47	The Mil Corporation Top agencies DOS (Department of State)	$10,172,134	0.5%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; down 35 since FY2020.
48	Octo Metric LLC Top agencies Treasury (Department of the Treasury)	$9,853,577	0.4%	Rank history: #43 in FY2022, #16 in FY2023, #11 in FY2024 and #17 in FY2025; up 184 since FY2020.
49	Digital Infuzion, LLC Top agencies HHS (Department of Health and Human Services)	$9,494,650	0.4%	Rank history: #39 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
50	CSA Global LLC Top agencies Navy (Department of the Navy)	$9,357,274	0.4%	Rank history: not on the FY2022–FY2023 lists, #29 in FY2024 and not on the FY2025 list; up 36 since FY2020.
51	Sierra7, Inc. Top agencies DOI (Department of the Interior) VA (Department of Veterans Affairs)	$9,304,661	0.4%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
52	Blue Cross & Blue Shield of South Carolina 2 awardees, including Palmetto Gba, LLC Top agencies HHS (Department of Health and Human Services)	$9,210,645	0.4%	Rank history: #44 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; up 33 since FY2020.
53	Appian Corporation Top agencies DISA (Defense Information Systems Agency)	$9,043,021	0.4%	Rank history: #36 in FY2022, #36 in FY2023, #22 in FY2024 and #10 in FY2025; up 80 since FY2020.
54	Cerner Corporation Through Oracle Health Government Services, Inc. Top agencies VA (Department of Veterans Affairs)	$9,034,790	0.4%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
55	Variq Corporation Top agencies DHS (Department of Homeland Security) Treasury (Department of the Treasury)	$9,031,197	0.4%	Rank history: #56 in FY2022, #37 in FY2023, #16 in FY2024 and not on the FY2025 list; up 139 since FY2020.
56	Civicactions, Inc. Top agencies HHS (Department of Health and Human Services) NSF (National Science Foundation) ED (Department of Education)	$9,006,585	0.4%	Rank history: #27 in FY2022, #26 in FY2023, #12 in FY2024 and not on the FY2025 list; up 35 since FY2020.
57	Digital Management LLC Top agencies HUD (Department of Housing and Urban Development) USDA (Department of Agriculture)	$8,975,321	0.4%	Rank history: #57 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; down 36 since FY2020.
58	Accelera Solutions Inc. Top agencies DOJ (Department of Justice) EPA (Environmental Protection Agency)	$8,919,676	0.4%	Rank history: #15 in FY2022 and not on the FY2023–FY2025 lists; up 117 since FY2020.
59	Scope Infotech Inc. Top agencies HHS (Department of Health and Human Services)	$8,217,316	0.4%	Rank history: #45 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; up 46 since FY2020.
60	Microsoft Corporation Top agencies DHS (Department of Homeland Security) DCAA (Defense Contract Audit Agency) NRC (Nuclear Regulatory Commission)	$8,130,210	0.4%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
61	H.i.g. Capital Management Inc. Through Empower AI, Inc. Top agencies Army (Department of the Army) EOP (Executive Office of the President)	$8,102,367	0.4%	Rank history: not on the FY2022–FY2025 lists; up 60 since FY2020.
62	Accelint Global Inc. Top agencies Navy (Department of the Navy)	$8,033,635	0.4%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 83 since FY2020.
63	Integrated Systems, LLC Top agencies SEC (Securities and Exchange Commission)	$7,956,349	0.4%	Rank history: #50 in FY2022, #24 in FY2023, #19 in FY2024 and not on the FY2025 list; up 16 since FY2020.
64	Emagine It Inc. Top agencies HHS (Department of Health and Human Services)	$7,843,504	0.4%	Rank history: #49 in FY2022, #33 in FY2023, #23 in FY2024 and #12 in FY2025; up 314 since FY2020.
65	The Informatics Applications Group, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$7,767,657	0.4%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; up 195 since FY2020.
66	ICF International, Inc. 2 awardees, including Incentive Technology Group LLC and ICF Incorporated, L.L.C. Top agencies SEC (Securities and Exchange Commission) GSA (General Services Administration) EOP (Executive Office of the President)	$7,705,704	0.3%	Rank history: #55 in FY2022, not on the FY2023 list, #68 in FY2024 and not on the FY2025 list; up 108 since FY2020.
67	Fusion Technology LLC Top agencies DOJ (Department of Justice)	$7,408,360	0.3%	Rank history: not on the FY2022–FY2025 lists; up 81 since FY2020.
68	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$7,220,418	0.3%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; up 40 since FY2020.
69	Aeec, LLC Top agencies Commerce (Department of Commerce)	$7,212,145	0.3%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
70	Unissant Inc. Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$7,026,643	0.3%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
71	Sevatec LLC Top agencies DHS (Department of Homeland Security)	$6,944,222	0.3%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
72	Salient Crgt, Inc. Top agencies Commerce (Department of Commerce)	$6,915,452	0.3%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
73	Arctic Slope Regional Corporation 3 awardees, including Asrc Federal Data Network Technologies, LLC, Vistronix, LLC and Asrc Federal Data Solutions, LLC Top agencies DISA (Defense Information Systems Agency) DOI (Department of the Interior) USAF (Department of the Air Force)	$6,517,730	0.3%	Rank history: #77 in FY2022, #27 in FY2023, #49 in FY2024 and #28 in FY2025; up 36 since FY2020.
74	Prime Source Technologies, LLC Top agencies DOS (Department of State)	$6,388,705	0.3%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
75	Corelogic Solutions LLC Top agencies DHS (Department of Homeland Security)	$6,383,088	0.3%	Rank history: not on the FY2022–FY2025 lists; up 86 since FY2020.
76	Future Technologies, Inc. Top agencies Navy (Department of the Navy)	$6,147,167	0.3%	Rank history: #67 in FY2022, #47 in FY2023, #27 in FY2024 and #16 in FY2025; up 55 since FY2020.
77	Antech Systems, Inc. Top agencies Navy (Department of the Navy)	$6,057,878	0.3%	Rank history: not on the FY2022–FY2025 lists; down 26 since FY2020.
78	Puyenpa Services, LLC Top agencies DHS (Department of Homeland Security)	$5,957,777	0.3%	Rank history: #62 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; up 79 since FY2020.
79	Infinite Technologies, Inc. Top agencies USAF (Department of the Air Force)	$5,639,175	0.3%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
80	Oddball, Inc. Top agencies HHS (Department of Health and Human Services)	$5,497,026	0.2%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 46 since FY2020.
81	W R Systems Ltd. Top agencies Navy (Department of the Navy)	$5,470,504	0.2%	Rank history: #65 in FY2022, #30 in FY2023, #21 in FY2024 and #35 in FY2025; up 3 since FY2020.
82	Palantir Technologies Inc. Top agencies DOJ (Department of Justice)	$5,346,037	0.2%	Rank history: #48 in FY2022, #88 in FY2023 and not on the FY2024–FY2025 lists; up 45 since FY2020.
83	Veritium Ingenuity, LLC Top agencies DOT (Department of Transportation)	$5,281,820	0.2%	Rank history: #53 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; up 93 since FY2020.
84	Trillion Technology Solutions Inc. Top agencies DHS (Department of Homeland Security)	$5,171,775	0.2%	Rank history: #85 in FY2022, #81 in FY2023, #71 in FY2024 and #43 in FY2025; up 123 since FY2020.
85	Invictus JV, LLC Top agencies SEC (Securities and Exchange Commission)	$5,104,910	0.2%	Rank history: #60 in FY2022, #22 in FY2023, #37 in FY2024 and #22 in FY2025; up 39 since FY2020.
86	Hewlett Packard Enterprise Co 2 awardees, including HPE Government, LLC and Cray Inc. Top agencies Army (Department of the Army)	$4,990,069	0.2%	Rank history: #78 in FY2022, #62 in FY2023, #46 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
87	Ascella Technologies, Inc. Top agencies SEC (Securities and Exchange Commission)	$4,934,124	0.2%	Rank history: not on the FY2022–FY2025 lists; up 122 since FY2020.
88	OST Inc. Top agencies Navy (Department of the Navy)	$4,910,228	0.2%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
89	Revolutional, LLC Top agencies CFPB (Consumer Financial Protection Bureau)	$4,854,962	0.2%	Rank history: #74 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; down 30 since FY2020.
90	Credence Management Solutions Limited Liability Company Top agencies DHS (Department of Homeland Security)	$4,850,263	0.2%	Rank history: #71 in FY2022, #53 in FY2023, #53 in FY2024 and not on the FY2025 list; up 45 since FY2020.
91	SJ Tech LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$4,819,470	0.2%	Rank history: #72 in FY2022, #51 in FY2023, #41 in FY2024 and not on the FY2025 list; up 29 since FY2020.
92	3Vesta, LLC Top agencies Army (Department of the Army)	$4,749,535	0.2%	Rank history: not on the FY2022–FY2025 lists; up 23 since FY2020.
93	Ites Venture LLC Top agencies Army (Department of the Army)	$4,690,090	0.2%	Rank history: #69 in FY2022, #43 in FY2023, #26 in FY2024 and not on the FY2025 list; up 73 since FY2020.
94	Digital Systems Group, Inc. Top agencies DHS (Department of Homeland Security)	$4,649,651	0.2%	Rank history: #73 in FY2022, #56 in FY2023, #44 in FY2024 and not on the FY2025 list; up 34 since FY2020.
95	Si Systems Technologies, LLC Top agencies USAF (Department of the Air Force)	$4,624,580	0.2%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
96	Sentient Digital, Inc. Top agencies Navy (Department of the Navy)	$4,610,213	0.2%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; down 26 since FY2020.
97	Aries Systems International, Inc. Top agencies Navy (Department of the Navy)	$4,308,425	0.2%	Rank history: #79 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 115 since FY2020.
98	Impyrian LLC Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$4,280,299	0.2%	Rank history: not on the FY2022–FY2025 lists; up 62 since FY2020.
99	Computer Technology Associates, Inc. Top agencies Navy (Department of the Navy)	$4,280,104	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	ACE Info Solutions LLC 2 awardees, including Guidehouse Digital LLC Top agencies DHS (Department of Homeland Security) RRB (Railroad Retirement Board)	$4,239,398	0.2%	Rank history: #96 in FY2022, #38 in FY2023, #24 in FY2024 and not on the FY2025 list; up 58 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 $2.22 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.

Quick answers