Top 100 Contractors in PSC 7B21: IT and Telecom – Compute: Mainframe (Hardware and Perpetual License Software), FY2025

Name: Top 100 Contractors in PSC 7B21: IT and Telecom – Compute: Mainframe (Hardware and Perpetual License Software), FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 54% of FY2025 PSC 7B21 contract dollars

Contract obligations: $473,883,187 Net of deobligations, by contracts coded PSC 7B21
Contractors: 275 Parent companies with an obligation
Largest contractor: Four LLC $68 million, 14.1% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Four LLC Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) USAF (Department of the Air Force)	$67,967,978	14.1%	Rank history: #17 in FY2021, #60 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	FCN, Inc. Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$59,921,096	12.4%	Rank history: #4 in FY2021, #3 in FY2022, #2 in FY2023 and #2 in FY2024; unchanged since FY2024.
3	Greenbrier Government Solutions Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$21,053,582	4.4%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023 and #10 in FY2024; up 7 since FY2024.
4	Science Applications International Corporation 2 awardees Top agencies Treasury (Department of the Treasury)	$19,824,396	4.1%	Rank history: #46 in FY2021, #7 in FY2022, #4 in FY2023 and #4 in FY2024; unchanged since FY2024.
5	Palantir Technologies Inc. Through Palantir USG Inc. Top agencies OSD (Office of the Secretary of Defense)	$19,554,395	4.0%	Rank history: not on the FY2021–FY2024 lists; new.
6	Nana Regional Corporation Inc. 2 awardees, including Affigent, LLC Top agencies Treasury (Department of the Treasury) DFAS (Defense Finance and Accounting Service) Army (Department of the Army)	$17,606,385	3.6%	Rank history: #1 in FY2021, #9 in FY2022, #12 in FY2023 and #8 in FY2024; up 2 since FY2024.
7	OSI Federal Technologies Inc Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$16,047,610	3.3%	Rank history: not on the FY2021–FY2024 lists; up 218 since FY2024.
8	New TECH Solutions, Inc. Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force) Treasury (Department of the Treasury)	$15,151,399	3.1%	Rank history: #22 in FY2021, #24 in FY2022, #15 in FY2023 and #29 in FY2024; up 21 since FY2024.
9	Thundercat Technology LLC Top agencies Treasury (Department of the Treasury) Commerce (Department of Commerce) Navy (Department of the Navy)	$13,560,493	2.8%	Rank history: #3 in FY2021, #4 in FY2022, #19 in FY2023 and #14 in FY2024; up 5 since FY2024.
10	Carahsoft Technology Corp Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) Army (Department of the Army)	$12,350,456	2.6%	Rank history: #25 in FY2021, #17 in FY2022, #7 in FY2023 and #5 in FY2024; down 5 since FY2024.
11	MCP Computer Products Inc. Top agencies EPA (Environmental Protection Agency) USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$11,053,070	2.3%	Rank history: #2 in FY2021, #2 in FY2022, #13 in FY2023 and #11 in FY2024; unchanged since FY2024.
12	Sterling Computers Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$10,992,426	2.3%	Rank history: #23 in FY2021, #18 in FY2022, #11 in FY2023 and #12 in FY2024; unchanged since FY2024.
13	International Business Machines Corporation 2 awardees Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice)	$10,454,716	2.2%	Rank history: not on the FY2021–FY2024 lists; up 118 since FY2024.
14	Executive Information Systems, L.L.C. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture)	$9,397,422	1.9%	Rank history: #64 in FY2021, #41 in FY2022, #55 in FY2023 and #22 in FY2024; up 8 since FY2024.
15	ITI Engineering LLC Top agencies USAF (Department of the Air Force)	$9,253,270	1.9%	Rank history: not on the FY2021–FY2024 lists; new.
16	Countertrade Products, Inc. Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense) Commerce (Department of Commerce)	$8,906,819	1.8%	Rank history: #36 in FY2021, #19 in FY2022, #20 in FY2023 and #7 in FY2024; down 9 since FY2024.
17	Bell and Howell, LLC Top agencies Treasury (Department of the Treasury)	$7,764,306	1.6%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 7 since FY2024.
18	HPI Federal LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$7,337,115	1.5%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; unchanged since FY2024.
19	Government Acquisitions LLC Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) Army (Department of the Army)	$6,290,961	1.3%	Rank history: #19 in FY2021, #25 in FY2022, #6 in FY2023 and #6 in FY2024; down 13 since FY2024.
20	Software Information Resource Corp Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy) DCSA (Defense Counterintelligence and Security Agency)	$5,528,338	1.1%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023 and #55 in FY2024; up 35 since FY2024.
21	Sealing Technologies LLC Top agencies Navy (Department of the Navy)	$5,268,495	1.1%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2023 and #13 in FY2024; down 8 since FY2024.
22	Knot Technology Solutions L.L.C. Top agencies DOJ (Department of Justice)	$4,932,182	1.0%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #43 in FY2024; up 21 since FY2024.
23	Colossal Contracting LLC Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) DOJ (Department of Justice)	$4,835,653	1.0%	Rank history: not on the FY2021 list, #14 in FY2022, #64 in FY2023 and #88 in FY2024; up 65 since FY2024.
24	Metgreen Solutions Inc. Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services)	$4,426,798	0.9%	Rank history: #60 in FY2021, #57 in FY2022 and not on the FY2023–FY2024 lists; up 140 since FY2024.
25	Lancer Information Solutions, LLC Top agencies Treasury (Department of the Treasury)	$4,424,721	0.9%	Rank history: #9 in FY2021, #16 in FY2022, #16 in FY2023 and #9 in FY2024; down 16 since FY2024.
26	Strategic Communications LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency)	$4,373,383	0.9%	Rank history: #42 in FY2021, #8 in FY2022, #62 in FY2023 and #52 in FY2024; up 26 since FY2024.
27	CDW Government LLC Top agencies DOT (Department of Transportation) HHS (Department of Health and Human Services) Army (Department of the Army)	$4,045,011	0.8%	Rank history: #26 in FY2021, not on the FY2022–FY2023 lists and #42 in FY2024; up 15 since FY2024.
28	Groundswell Corporation Top agencies HHS (Department of Health and Human Services)	$3,872,934	0.8%	Rank history: not on the FY2021–FY2023 lists and #53 in FY2024; up 25 since FY2024.
29	Red River Technology LLC Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services) Navy (Department of the Navy)	$3,820,524	0.8%	Rank history: #29 in FY2021, #15 in FY2022, #17 in FY2023 and #39 in FY2024; up 10 since FY2024.
30	NCS Technologies Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$3,573,532	0.7%	Rank history: #6 in FY2021, #5 in FY2022, #73 in FY2023 and #16 in FY2024; down 14 since FY2024.
31	Dell Technologies Inc. 2 awardees, including Dell Federal Systems L.P and Dell Marketing L.P. Top agencies SSA (Social Security Administration) Army (Department of the Army) HHS (Department of Health and Human Services)	$3,509,200	0.7%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 28 since FY2024.
32	World Wide Technology LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$3,391,569	0.7%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023 and #27 in FY2024; down 5 since FY2024.
33	Blue TECH Inc. Top agencies Army (Department of the Army) Treasury (Department of the Treasury) USAF (Department of the Air Force)	$3,300,202	0.7%	Rank history: #8 in FY2021, #10 in FY2022, #10 in FY2023 and #23 in FY2024; down 10 since FY2024.
34	Distributed Technology Group LLC Top agencies Treasury (Department of the Treasury) Navy (Department of the Navy)	$3,228,174	0.7%	Rank history: not on the FY2021–FY2023 lists and #37 in FY2024; up 3 since FY2024.
35	Arrow Electronics, Inc. Through Immixtechnology Inc. Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) DHRA (Defense Human Resources Activity)	$3,216,639	0.7%	Rank history: #37 in FY2021, #35 in FY2022, #28 in FY2023 and #36 in FY2024; up 1 since FY2024.
36	Fedtribe LLC Top agencies Treasury (Department of the Treasury)	$3,136,720	0.6%	Rank history: not on the FY2021–FY2023 lists and #19 in FY2024; down 17 since FY2024.
37	CSP Enterprises, LLC Top agencies HHS (Department of Health and Human Services) Commerce (Department of Commerce) DOT (Department of Transportation)	$2,661,444	0.6%	Rank history: #5 in FY2021, #27 in FY2022, #27 in FY2023 and #31 in FY2024; down 6 since FY2024.
38	SAS Institute Inc. Top agencies Treasury (Department of the Treasury)	$2,634,067	0.5%	Rank history: not on the FY2021 list, #47 in FY2022, #49 in FY2023 and #41 in FY2024; up 3 since FY2024.
39	Veteran Information Technologies, LLC Top agencies HUD (Department of Housing and Urban Development) DOT (Department of Transportation) DISA (Defense Information Systems Agency)	$2,558,468	0.5%	Rank history: not on the FY2021 list, #70 in FY2022, #48 in FY2023 and not on the FY2024 list; returned.
40	Bahfed Corp Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,512,394	0.5%	Rank history: #63 in FY2021, #59 in FY2022, #57 in FY2023 and #60 in FY2024; up 20 since FY2024.
41	Federal Data Systems LLC Through Feddata Technology Solutions, LLC Top agencies USCYBERCOM (Department of Defense Cyber Command) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$2,303,509	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
42	Standard-Blazar, LLC Top agencies DOT (Department of Transportation) DOS (Department of State) HHS (Department of Health and Human Services)	$2,039,531	0.4%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list and #26 in FY2024; down 16 since FY2024.
43	Vanguard Integrity Professionals Inc. Top agencies Treasury (Department of the Treasury)	$1,809,126	0.4%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023 and #49 in FY2024; up 6 since FY2024.
44	Atlantic Diving Supply, Inc. Through 4 Star Technologies, Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$1,664,235	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
45	Minburn Technology Group, LLC Top agencies VA (Department of Veterans Affairs) Treasury (Department of the Treasury)	$1,649,368	0.3%	Rank history: #33 in FY2021, #58 in FY2022, #21 in FY2023 and #67 in FY2024; up 22 since FY2024.
46	Igov Technologies, Inc. 2 awardees, including Ma Federal, Inc. Top agencies USAF (Department of the Air Force)	$1,582,399	0.3%	Rank history: not on the FY2021–FY2024 lists; up 151 since FY2024.
47	Enterprise Technology Solutions, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$1,571,480	0.3%	Rank history: #68 in FY2021, not on the FY2022 list, #83 in FY2023 and not on the FY2024 list; up 74 since FY2024.
48	Advanced Technology International Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,502,470	0.3%	Rank history: not on the FY2021–FY2024 lists; up 134 since FY2024.
49	Transource Services Corp. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USUHS (DOD Uniformed Services University of the Health Sciences)	$1,423,407	0.3%	Rank history: #44 in FY2021, #30 in FY2022, #47 in FY2023 and #47 in FY2024; down 2 since FY2024.
50	Redhawk It Solutions, LLC Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DHA (Defense Health Agency)	$1,116,884	0.2%	Rank history: not on the FY2021 list, #75 in FY2022, #67 in FY2023 and #70 in FY2024; up 20 since FY2024.
51	Economic Systems Inc. Top agencies DHS (Department of Homeland Security)	$1,091,082	0.2%	Rank history: #61 in FY2021, #52 in FY2022, #56 in FY2023 and #57 in FY2024; up 6 since FY2024.
52	Epoch Concepts LLC Top agencies USAF (Department of the Air Force)	$904,183	0.2%	Rank history: #90 in FY2021 and not on the FY2022–FY2024 lists; up 189 since FY2024.
53	Advanced Computer Concepts, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$837,880	0.2%	Rank history: #32 in FY2021, #66 in FY2022, #50 in FY2023 and #68 in FY2024; up 15 since FY2024.
54	Dynamic Systems Inc. Top agencies Treasury (Department of the Treasury) HHS (Department of Health and Human Services)	$806,610	0.2%	Rank history: not on the FY2021–FY2024 lists; up 204 since FY2024.
55	M2 Technology, Inc. Top agencies USAF (Department of the Air Force)	$784,716	0.2%	Rank history: #62 in FY2021, #39 in FY2022, #88 in FY2023 and #76 in FY2024; up 21 since FY2024.
56	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DOT (Department of Transportation)	$743,824	0.2%	Rank history: #13 in FY2021, #29 in FY2022, #44 in FY2023 and #54 in FY2024; down 2 since FY2024.
57	Griffeye Inc. Top agencies DHS (Department of Homeland Security)	$738,150	0.2%	Rank history: #81 in FY2021, #74 in FY2022, #74 in FY2023 and #78 in FY2024; up 21 since FY2024.
58	Arcsource Group, Inc. Top agencies HHS (Department of Health and Human Services)	$708,419	0.1%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 6 since FY2024.
59	Katmai Diversified Services LLC Top agencies USAF (Department of the Air Force)	$700,612	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
60	Koi Computers, Inc. Top agencies Army (Department of the Army) Treasury (Department of the Treasury) Commerce (Department of Commerce)	$670,759	0.1%	Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2023–FY2024 lists; up 226 since FY2024.
61	En-Net Services, L.L.C. Top agencies HHS (Department of Health and Human Services)	$638,727	0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and not on the FY2024 list; up 44 since FY2024.
62	Unicom Government, Inc. Top agencies Army (Department of the Army) Treasury (Department of the Treasury) USAF (Department of the Air Force)	$623,572	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
63	Government Retirement & Benefits, Inc. Top agencies Treasury (Department of the Treasury)	$615,892	0.1%	Rank history: not on the FY2021 list, #84 in FY2022, #75 in FY2023 and #85 in FY2024; up 22 since FY2024.
64	Alvarez LLC Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) VA (Department of Veterans Affairs)	$612,159	0.1%	Rank history: #53 in FY2021, #45 in FY2022, #66 in FY2023 and #58 in FY2024; down 6 since FY2024.
65	DH Technologies, Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Army (Department of the Army)	$585,204	0.1%	Rank history: #50 in FY2021, #65 in FY2022, not on the FY2023 list and #69 in FY2024; up 4 since FY2024.
66	Avantus Federal LLC Top agencies DOT (Department of Transportation)	$578,585	0.1%	Rank history: #70 in FY2021, #83 in FY2022, #86 in FY2023 and #89 in FY2024; up 23 since FY2024.
67	Lyme Computer Systems, Inc. Top agencies DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$545,981	0.1%	Rank history: #75 in FY2021, #22 in FY2022, #36 in FY2023 and not on the FY2024 list; up 153 since FY2024.
68	Pixamettic Solutions LLC Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency)	$542,846	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
69	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force)	$521,116	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Mvation Worldwide, Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$517,516	0.1%	Rank history: #91 in FY2021, #64 in FY2022 and not on the FY2023–FY2024 lists; up 42 since FY2024.
71	Iron Bow Technologies, LLC Top agencies Army (Department of the Army) DOT (Department of Transportation)	$515,032	0.1%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 23 since FY2024.
72	Merlin International, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$513,797	0.1%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and #83 in FY2024; up 11 since FY2024.
73	Everfox LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$477,694	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
74	Scioteq LLC Top agencies Navy (Department of the Navy)	$468,390	0.1%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; down 1 since FY2024.
75	Swish Data Corporation Top agencies USDA (Department of Agriculture) USAF (Department of the Air Force)	$468,131	0.1%	Rank history: not on the FY2021–FY2024 lists; up 130 since FY2024.
76	Zivaro Inc. Through Trace3 Government, LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$457,472	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
77	JC Technology Inc Top agencies USAF (Department of the Air Force) Army (Department of the Army) Navy (Department of the Navy)	$456,964	0.1%	Rank history: #56 in FY2021, #36 in FY2022, #39 in FY2023 and #40 in FY2024; down 37 since FY2024.
78	Govsmart, Inc. Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury) Army (Department of the Army)	$451,073	0.1%	Rank history: #21 in FY2021, #23 in FY2022, #22 in FY2023 and #32 in FY2024; down 46 since FY2024.
79	Better Direct, LLC Top agencies Architectural and Transportation Barriers Compliance Board Army (Department of the Army) OSD (Office of the Secretary of Defense)	$449,040	0.1%	Rank history: #76 in FY2021, #61 in FY2022, not on the FY2023 list and #46 in FY2024; down 33 since FY2024.
80	Trace3 Government, LLC Top agencies Army (Department of the Army)	$434,251	0.1%	Rank history: #78 in FY2021, #50 in FY2022, #45 in FY2023 and not on the FY2024 list; up 36 since FY2024.
81	Regency Consulting Inc Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) DHS (Department of Homeland Security)	$433,309	0.1%	Rank history: not on the FY2021–FY2022 lists, #31 in FY2023 and #15 in FY2024; down 66 since FY2024.
82	Peraton Inc. Top agencies USAF (Department of the Air Force)	$400,000	0.1%	Rank history: not on the FY2021–FY2023 lists and #95 in FY2024; up 13 since FY2024.
83	Architechture Solutions LLC Top agencies USAF (Department of the Air Force)	$394,187	0.1%	Rank history: #85 in FY2021 and not on the FY2022–FY2024 lists; up 20 since FY2024.
84	Wildflower International, Ltd. Top agencies Army (Department of the Army)	$376,710	0.1%	Rank history: #92 in FY2021, #81 in FY2022, #58 in FY2023 and #51 in FY2024; down 33 since FY2024.
85	Systran Software, Inc. Top agencies Treasury (Department of the Treasury)	$376,303	0.1%	Rank history: not on the FY2021–FY2024 lists; up 166 since FY2024.
86	Professional Software Consortium Inc. Top agencies USAF (Department of the Air Force)	$375,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
87	Paragon Micro Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DCMA (Defense Contract Management Agency)	$357,036	0.1%	Rank history: #14 in FY2021, #67 in FY2022, #72 in FY2023 and #17 in FY2024; down 70 since FY2024.
88	V3Gate, LLC Top agencies DOE (Department of Energy) Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$339,540	0.1%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and #30 in FY2024; down 58 since FY2024.
89	Govconnection Inc. Top agencies Army (Department of the Army) DOS (Department of State)	$338,869	0.1%	Rank history: not on the FY2021–FY2023 lists and #80 in FY2024; down 9 since FY2024.
90	Fedtek, Inc. Top agencies Navy (Department of the Navy)	$337,878	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	NMH Tech, Inc. Top agencies Navy (Department of the Navy)	$304,357	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
92	Tyler Technologies, Inc. Through Tyler Federal, LLC Top agencies Treasury (Department of the Treasury)	$301,265	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
93	Flywheel Data LLC Top agencies USAF (Department of the Air Force)	$274,752	0.1%	Rank history: not on the FY2021–FY2022 lists, #95 in FY2023 and not on the FY2024 list; up 11 since FY2024.
94	Infor (US) LLC Top agencies HHS (Department of Health and Human Services)	$269,196	0.1%	Rank history: not on the FY2021–FY2024 lists; up 135 since FY2024.
95	Vertosoft LLC Top agencies DHA (Defense Health Agency) HHS (Department of Health and Human Services)	$267,517	0.1%	Rank history: not on the FY2021–FY2024 lists; up 74 since FY2024.
96	Anacapa Micro Products Inc Top agencies OSD (Office of the Secretary of Defense)	$262,984	0.1%	Rank history: #35 in FY2021, #43 in FY2022 and not on the FY2023–FY2024 lists; up 40 since FY2024.
97	Navsim Services, Inc. Top agencies DHS (Department of Homeland Security)	$259,200	0.1%	Rank history: not on the FY2021–FY2024 lists; up 126 since FY2024.
98	Uscomputers Inc. Top agencies Navy (Department of the Navy)	$248,625	0.1%	Rank history: not on the FY2021–FY2024 lists; up 42 since FY2024.
99	Smartsafety Software Inc. Top agencies Treasury (Department of the Treasury)	$248,000	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Velocity Software Top agencies Treasury (Department of the Treasury)	$226,400	<0.1%	Rank history: not on the FY2021–FY2024 lists; up 10 since FY2024.

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100 of 275 contractors listed here. See the rest on GovTribe.

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 $483 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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

Who were the top 10 PSC 7B21 contractors in FY2025?

1. Four LLC ($68M), 2. FCN, Inc. ($59.9M), 3. Greenbrier Government Solutions Inc. ($21.1M), 4. Science Applications International Corporation ($19.8M), 5. Palantir Technologies Inc. ($19.6M), 6. Nana Regional Corporation Inc. ($17.6M), 7. OSI Federal Technologies Inc ($16M), 8. New TECH Solutions, Inc. ($15.2M), 9. Thundercat Technology LLC ($13.6M), 10. Carahsoft Technology Corp ($12.4M).

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