Top 100 Contractors in PSC D3: Automatic Data Processing and Telecommunications, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC D3: Automatic Data Processing and Telecommunications, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 55% of PSC D3 contract dollars from July 2025 through June 2026

Contract obligations: $4,447,095,874 Net of deobligations, by contracts coded PSC D3 or a code under it
Contractors: 353 Parent companies with an obligation
Largest contractor: At&T Inc. $677 million, 12.9% of obligations
Data as of: Oct 16, 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	At&T Inc. 9 awardees, including At&T Enterprises, LLC, Southwestern Bell Telephone Company, LLC and Pacific Bell Telephone Company Top agencies VA (Department of Veterans Affairs) DOJ (Department of Justice) DOS (Department of State)	$676,630,048	12.9%	Rank history: #12 in FY2021, #12 in FY2022, #8 in FY2023, #5 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Peraton Inc. 3 awardees, including Peraton Enterprise Solutions LLC Top agencies NASA (National Aeronautics and Space Administration) DOS (Department of State) ED (Department of Education)	$532,216,045	10.1%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #1 in FY2025; up 2 since Jul 2024–Jun 2025.
3	Accenture Federal Services LLC 3 awardees, including Cognosante, LLC Top agencies Army (Department of the Army) Commerce (Department of Commerce) USDA (Department of Agriculture)	$379,910,224	7.2%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
4	General Dynamics Corporation 9 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DISA (Defense Information Systems Agency)	$302,016,952	5.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #4 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Oracle Health Government Services Inc. 2 awardees Top agencies VA (Department of Veterans Affairs)	$250,151,490	4.8%	Rank history: not on the FY2021 list, #19 in FY2022, #10 in FY2023, #8 in FY2024 and #6 in FY2025; up 2 since Jul 2024–Jun 2025.
6	Science Applications International Corporation 2 awardees Top agencies DHS (Department of Homeland Security) DISA (Defense Information Systems Agency) VA (Department of Veterans Affairs)	$198,874,130	3.8%	Rank history: #6 in FY2021, #7 in FY2022, #7 in FY2023, #7 in FY2024 and #7 in FY2025; up 2 since Jul 2024–Jun 2025.
7	Lumen Technologies Government Solutions, Inc. Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior) SSA (Social Security Administration)	$174,453,581	3.3%	Rank history: not on the FY2021 list, #58 in FY2022, not on the FY2023 list, #40 in FY2024 and #13 in FY2025; up 5 since Jul 2024–Jun 2025.
8	Verizon 10 awardees, including Verizon Business Network Services LLC and Verizon Deutschland GMBH Top agencies HHS (Department of Health and Human Services) Treasury (Department of the Treasury) SSA (Social Security Administration)	$173,494,322	3.3%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #11 in FY2025; up 1 since Jul 2024–Jun 2025.
9	Securigence LLC Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service)	$118,600,737	2.3%	Rank history: not on the FY2021 list, #38 in FY2022, #22 in FY2023, #17 in FY2024 and #12 in FY2025; up 4 since Jul 2024–Jun 2025.
10	Guidehouse Inc. 2 awardees, including Peraton Enterprise Solutions LLC and Peraton Inc. Top agencies DOS (Department of State) DOL (Department of Labor) DHS (Department of Homeland Security)	$112,567,960	2.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
11	CACI International Inc. 7 awardees, including Caci, Inc. - Federal, Caci Nss, LLC and Caci-Iss, LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$109,964,942	2.1%	Rank history: #4 in FY2021, #3 in FY2022, #3 in FY2023, #9 in FY2024 and #10 in FY2025; unchanged since Jul 2024–Jun 2025.
12	Leidos Holdings, Inc. 10 awardees, including Leidos, Inc. and 1901 Group, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) HHS (Department of Health and Human Services)	$102,401,578	1.9%	Rank history: #2 in FY2021, #2 in FY2022, #6 in FY2023, #4 in FY2024 and #5 in FY2025; down 6 since Jul 2024–Jun 2025.
13	By Light Professional It Services LLC Top agencies DISA (Defense Information Systems Agency) NSF (National Science Foundation)	$89,156,968	1.7%	Rank history: #29 in FY2021, #37 in FY2022, #32 in FY2023, #23 in FY2024 and #15 in FY2025; up 2 since Jul 2024–Jun 2025.
14	ManTech International Corporation 2 awardees, including Mantech Advanced Systems International, Inc. and Unison Software Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State) DOI (Department of the Interior)	$86,841,331	1.6%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #18 in FY2025; up 5 since Jul 2024–Jun 2025.
15	Iridium Government Services LLC Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$82,874,997	1.6%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #14 in FY2025; down 1 since Jul 2024–Jun 2025.
16	L3Harris Technologies, Inc. 5 awardees, including Harris Corporation Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$78,606,446	1.5%	Rank history: #16 in FY2021, #13 in FY2022, #13 in FY2023, #12 in FY2024 and #16 in FY2025; up 6 since Jul 2024–Jun 2025.
17	CGI Federal Inc. Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$72,633,537	1.4%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #9 in FY2025; down 7 since Jul 2024–Jun 2025.
18	Viasat Inc. Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$68,261,327	1.3%	Rank history: #45 in FY2021, #31 in FY2022, #21 in FY2023, #19 in FY2024 and #17 in FY2025; unchanged since Jul 2024–Jun 2025.
19	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. Top agencies Navy (Department of the Navy) SEC (Securities and Exchange Commission) DISA (Defense Information Systems Agency)	$66,927,240	1.3%	Rank history: #3 in FY2021, #4 in FY2022, #2 in FY2023, #3 in FY2024 and #8 in FY2025; down 14 since Jul 2024–Jun 2025.
20	Elevance Health, Inc. Through Wellpoint Federal Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$52,070,096	1.0%	Rank history: #82 in FY2021, #53 in FY2022, #28 in FY2023, #36 in FY2024 and #19 in FY2025; down 4 since Jul 2024–Jun 2025.
21	Unissant Inc. Top agencies DHS (Department of Homeland Security)	$42,019,309	0.8%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023, #51 in FY2024 and #26 in FY2025; up 19 since Jul 2024–Jun 2025.
22	Innovative Management Concepts, Inc. Top agencies Army (Department of the Army) Treasury (Department of the Treasury)	$41,816,010	0.8%	Rank history: not on the FY2021 list, #43 in FY2022, #36 in FY2023, #21 in FY2024 and #24 in FY2025; down 2 since Jul 2024–Jun 2025.
23	The Timken Company Through CGI Federal Inc. Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$41,617,340	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
24	Validatek-Citi, LLC Top agencies DISA (Defense Information Systems Agency)	$37,694,554	0.7%	Rank history: not on the FY2021–FY2022 lists, #88 in FY2023, #62 in FY2024 and #30 in FY2025; up 24 since Jul 2024–Jun 2025.
25	The Chenega Corporation 2 awardees, including Securigence LLC and Chenega Professional & Technical Services LLC Top agencies DARPA (Defense Advanced Research Projects Agency) DOE (Department of Energy)	$37,648,259	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
26	Planet Technologies, Inc. Top agencies DOI (Department of the Interior)	$37,102,507	0.7%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2023, #48 in FY2024 and #27 in FY2025; up 4 since Jul 2024–Jun 2025.
27	Spalding Consulting Inc. Top agencies Navy (Department of the Navy)	$29,488,392	0.6%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #32 in FY2025; up 19 since Jul 2024–Jun 2025.
28	Network Management Resources Inc. Top agencies MDA (DOD Missile Defense Agency)	$28,643,474	0.5%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #54 in FY2024 and #38 in FY2025; up 21 since Jul 2024–Jun 2025.
29	Teksynap Corporation Top agencies NRC (Nuclear Regulatory Commission) DTRA (Defense Threat Reduction Agency)	$28,006,000	0.5%	Rank history: #73 in FY2021, #46 in FY2022, #70 in FY2023, #66 in FY2024 and #37 in FY2025; up 74 since Jul 2024–Jun 2025.
30	Business Mission Edge, LLC Top agencies Army (Department of the Army)	$27,043,712	0.5%	Rank history: not on the FY2021 list, #29 in FY2022, #90 in FY2023, #39 in FY2024 and #23 in FY2025; down 6 since Jul 2024–Jun 2025.
31	Inspiritec Inc. Top agencies DHRA (Defense Human Resources Activity)	$22,514,125	0.4%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and not on the FY2025 list; up 6 since Jul 2024–Jun 2025.
32	Cubic Digital Intelligence Inc. Top agencies DISA (Defense Information Systems Agency)	$21,535,935	0.4%	Rank history: not on the FY2021–FY2023 lists, #97 in FY2024 and #41 in FY2025; up 35 since Jul 2024–Jun 2025.
33	Communications Resource Inc. Top agencies DOS (Department of State)	$18,947,230	0.4%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #73 in FY2025; up 25 since Jul 2024–Jun 2025.
34	Agile Defense, LLC Top agencies Army (Department of the Army) Smithsonian (Smithsonian Institution) Navy (Department of the Navy)	$18,425,269	0.4%	Rank history: #56 in FY2021, #90 in FY2022, #98 in FY2023, not on the FY2024 list and #36 in FY2025; up 25 since Jul 2024–Jun 2025.
35	Team Greenzone JV LLC Top agencies SEC (Securities and Exchange Commission)	$17,309,792	0.3%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023, #69 in FY2024 and #44 in FY2025; up 27 since Jul 2024–Jun 2025.
36	Directviz Solutions, LLC Top agencies Army (Department of the Army)	$16,414,760	0.3%	Rank history: #66 in FY2021, not on the FY2022 list, #75 in FY2023, #43 in FY2024 and #25 in FY2025; unchanged since Jul 2024–Jun 2025.
37	Uncomn LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$16,333,140	0.3%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #63 in FY2024 and #29 in FY2025; up 1 since Jul 2024–Jun 2025.
38	Sabre Systems, LLC Top agencies Navy (Department of the Navy)	$15,619,271	0.3%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 49 since Jul 2024–Jun 2025.
39	Manhattan Telecommunications Corporation LLC Top agencies SSA (Social Security Administration) GSA (General Services Administration) DOS (Department of State)	$13,824,261	0.3%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023, #44 in FY2024 and #31 in FY2025; down 8 since Jul 2024–Jun 2025.
40	New TECH Solutions, Inc. Top agencies DOJ (Department of Justice)	$13,349,080	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Procentrix, LLC Top agencies SEC (Securities and Exchange Commission) Treasury (Department of the Treasury) DOJ (Department of Justice)	$13,031,739	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #59 in FY2023, #53 in FY2024 and #40 in FY2025; up 3 since Jul 2024–Jun 2025.
42	Smartronix, LLC Top agencies Navy (Department of the Navy)	$12,580,257	0.2%	Rank history: #31 in FY2021, #32 in FY2022, #30 in FY2023, #25 in FY2024 and #21 in FY2025; down 16 since Jul 2024–Jun 2025.
43	Synectics for Management Decisions, Inc. Top agencies NSF (National Science Foundation)	$11,765,882	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 59 since Jul 2024–Jun 2025.
44	V3Gate, LLC Top agencies SSA (Social Security Administration)	$11,424,333	0.2%	Rank history: #28 in FY2021, #18 in FY2022, not on the FY2023 list, #77 in FY2024 and #71 in FY2025; up 42 since Jul 2024–Jun 2025.
45	Pacarctic, LLC Top agencies DOS (Department of State)	$11,311,954	0.2%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; up 132 since Jul 2024–Jun 2025.
46	Nuaxis LLC Top agencies DOI (Department of the Interior)	$11,157,048	0.2%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and #52 in FY2025; up 29 since Jul 2024–Jun 2025.
47	Asgn Incorporated Through ECS Federal, LLC Top agencies DOJ (Department of Justice) DISA (Defense Information Systems Agency) Treasury (Department of the Treasury)	$10,985,459	0.2%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #54 in FY2025; up 6 since Jul 2024–Jun 2025.
48	West 4TH Strategy, LLC Through Integrated Systems, LLC Top agencies SEC (Securities and Exchange Commission)	$9,639,257	0.2%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 71 since Jul 2024–Jun 2025.
49	A3 Technology Inc. Top agencies DOT (Department of Transportation)	$9,185,099	0.2%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 34 since Jul 2024–Jun 2025.
50	Deloitte Through Deloitte Consulting LLP Top agencies HUD (Department of Housing and Urban Development)	$9,005,762	0.2%	Rank history: not on the FY2021–FY2023 lists, #34 in FY2024 and #20 in FY2025; down 33 since Jul 2024–Jun 2025.
51	Herren Associates Inc. Top agencies Navy (Department of the Navy)	$8,368,000	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 102 since Jul 2024–Jun 2025.
52	At&T Technical Services Company, Inc. Top agencies Treasury (Department of the Treasury)	$7,842,798	0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 16 since Jul 2024–Jun 2025.
53	22Nd Century Technologies, Inc. Top agencies Commerce (Department of Commerce)	$7,691,905	0.1%	Rank history: #62 in FY2021, #40 in FY2022, #65 in FY2023, not on the FY2024 list and #62 in FY2025; up 84 since Jul 2024–Jun 2025.
54	Mutatio Inc. Top agencies NARA (National Archives and Records Administration)	$7,563,782	0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 103 since Jul 2024–Jun 2025.
55	Tsymmetry Inc. Top agencies DOS (Department of State)	$7,347,560	0.1%	Rank history: not on the FY2021–FY2025 lists; up 72 since Jul 2024–Jun 2025.
56	Sirius Computer Solutions LLC Top agencies VA (Department of Veterans Affairs)	$6,930,527	0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; up 60 since Jul 2024–Jun 2025.
57	Four Points Technology, L.L.C. Top agencies DOT (Department of Transportation) VA (Department of Veterans Affairs) Smithsonian (Smithsonian Institution)	$6,895,600	0.1%	Rank history: #26 in FY2021, #50 in FY2022, #74 in FY2023, not on the FY2024 list and #49 in FY2025; up 44 since Jul 2024–Jun 2025.
58	Patriot LLC Top agencies DHS (Department of Homeland Security)	$6,501,632	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 96 since Jul 2024–Jun 2025.
59	Sevatec LLC Top agencies GSA (General Services Administration)	$6,131,751	0.1%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #34 in FY2025; down 25 since Jul 2024–Jun 2025.
60	Carahsoft Technology Corp Top agencies DOJ (Department of Justice) NRC (Nuclear Regulatory Commission) DOS (Department of State)	$5,959,734	0.1%	Rank history: #20 in FY2021, #34 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 46 since Jul 2024–Jun 2025.
61	International Business Machines Corporation 5 awardees Top agencies Army (Department of the Army) HUD (Department of Housing and Urban Development) VA (Department of Veterans Affairs)	$5,847,572	0.1%	Rank history: #15 in FY2021, #27 in FY2022, #39 in FY2023, #29 in FY2024 and #35 in FY2025; down 11 since Jul 2024–Jun 2025.
62	Granite Telecommunications, LLC Top agencies USAF (Department of the Air Force) DCMA (Defense Contract Management Agency) Army (Department of the Army)	$5,841,149	0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 29 since Jul 2024–Jun 2025.
63	Metrostar Systems, LLC Top agencies DISA (Defense Information Systems Agency)	$5,772,846	0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 50 since Jul 2024–Jun 2025.
64	Guidehouse Digital LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services) RRB (Railroad Retirement Board)	$5,687,510	0.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; up 112 since Jul 2024–Jun 2025.
65	Appian Corporation Top agencies DISA (Defense Information Systems Agency)	$5,403,658	0.1%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 43 since Jul 2024–Jun 2025.
66	Koniag, Inc. Through Kadiak LLC Top agencies HHS (Department of Health and Human Services)	$5,216,564	0.1%	Rank history: #52 in FY2021, #72 in FY2022, #63 in FY2023, not on the FY2024 list and #58 in FY2025; up 76 since Jul 2024–Jun 2025.
67	MCR Federal, LLC Top agencies USAF (Department of the Air Force)	$5,036,558	0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; up 63 since Jul 2024–Jun 2025.
68	Rei Systems, Inc. Top agencies GSA (General Services Administration)	$4,975,242	0.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and not on the FY2025 list; down 12 since Jul 2024–Jun 2025.
69	Tetra Tech, Inc. 5 awardees, including Segue Technologies, Inc. and Bluewater Federal Solutions, Inc. Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$4,822,209	0.1%	Rank history: #64 in FY2021, #44 in FY2022, #34 in FY2023, not on the FY2024 list and #95 in FY2025; up 79 since Jul 2024–Jun 2025.
70	LCG Systems LLC Top agencies HHS (Department of Health and Human Services)	$4,783,034	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 77 since Jul 2024–Jun 2025.
71	British Telecommunications Public Limited Company 2 awardees, including 22Nd Century Networks, Inc. Top agencies DISA (Defense Information Systems Agency) MDA (DOD Missile Defense Agency) DCMA (Defense Contract Management Agency)	$4,622,500	0.1%	Rank history: not on the FY2021–FY2023 lists, #58 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
72	Pyramid Systems Inc. Top agencies HUD (Department of Housing and Urban Development)	$4,416,365	0.1%	Rank history: not on the FY2021–FY2025 lists; up 50 since Jul 2024–Jun 2025.
73	Teracore Inc. Top agencies Treasury (Department of the Treasury)	$4,382,390	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 41 since Jul 2024–Jun 2025.
74	Tecolote Research, Inc. Top agencies USAF (Department of the Air Force)	$4,290,231	0.1%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #43 in FY2025; down 23 since Jul 2024–Jun 2025.
75	Kinetica DB Inc. Top agencies USAF (Department of the Air Force)	$4,262,624	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 22 since Jul 2024–Jun 2025.
76	Peraton Government Communications Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$3,882,029	0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; up 60 since Jul 2024–Jun 2025.
77	Knowcean Consulting Inc. Top agencies Smithsonian (Smithsonian Institution)	$3,694,802	0.1%	Rank history: not on the FY2021–FY2025 lists; up 93 since Jul 2024–Jun 2025.
78	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$3,626,231	0.1%	Rank history: not on the FY2021–FY2024 lists and #97 in FY2025; up 55 since Jul 2024–Jun 2025.
79	Endyna, Inc. Top agencies DHS (Department of Homeland Security)	$3,513,741	0.1%	Rank history: not on the FY2021–FY2025 lists; up 187 since Jul 2024–Jun 2025.
80	Compqsoft, Inc. Top agencies DECA (Defense Commissary Agency)	$3,507,174	0.1%	Rank history: not on the FY2021–FY2025 lists; up 105 since Jul 2024–Jun 2025.
81	Alcor Technical Solutions LLC Top agencies HHS (Department of Health and Human Services)	$3,482,028	0.1%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 112 since Jul 2024–Jun 2025.
82	Ritenet Corp. Top agencies DISA (Defense Information Systems Agency)	$3,369,114	0.1%	Rank history: not on the FY2021–FY2025 lists; up 67 since Jul 2024–Jun 2025.
83	Innovative Management & Technology Approaches Inc. Top agencies DOJ (Department of Justice)	$3,352,192	0.1%	Rank history: not on the FY2021–FY2025 lists; up 7 since Jul 2024–Jun 2025.
84	Vista Defense Technologies, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,344,055	0.1%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #22 in FY2025; down 57 since Jul 2024–Jun 2025.
85	BAE Systems Through BAE Systems Technology Solutions & Services Inc. Top agencies DHS (Department of Homeland Security)	$3,322,650	0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; down 5 since Jul 2024–Jun 2025.
86	American Chemical Society Top agencies Commerce (Department of Commerce)	$3,240,588	0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; up 43 since Jul 2024–Jun 2025.
87	Essex Management LLC Top agencies HHS (Department of Health and Human Services)	$3,180,253	0.1%	Rank history: not on the FY2021–FY2025 lists; up 130 since Jul 2024–Jun 2025.
88	Level 3 Communications, LLC Top agencies DISA (Defense Information Systems Agency)	$3,129,480	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
89	United Telephone Company of the Northwest Top agencies Navy (Department of the Navy)	$2,985,756	0.1%	Rank history: not on the FY2021–FY2025 lists; up 174 since Jul 2024–Jun 2025.
90	RTX Corporation 6 awardees, including Raytheon Company and Arinc Incorporated Top agencies Commerce (Department of Commerce) DOT (Department of Transportation)	$2,970,318	0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 25 since Jul 2024–Jun 2025.
91	Caci Enterprise Solutions LLC Top agencies DHRA (Defense Human Resources Activity)	$2,880,204	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
92	Savvee Inc. Top agencies SEC (Securities and Exchange Commission)	$2,815,778	0.1%	Rank history: not on the FY2021–FY2025 lists; up 162 since Jul 2024–Jun 2025.
93	Kingdom of Saudi Arabia Through STC Bahrain B.s.c Closed Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$2,771,090	0.1%	Rank history: not on the FY2021–FY2025 lists; up 122 since Jul 2024–Jun 2025.
94	Comprehensive Approach LLC Top agencies VA (Department of Veterans Affairs)	$2,689,325	0.1%	Rank history: not on the FY2021–FY2025 lists; up 47 since Jul 2024–Jun 2025.
95	Parsons Corporation 3 awardees, including Parsons Government Services Inc. and Xator LLC Top agencies USAF (Department of the Air Force) DOI (Department of the Interior) DISA (Defense Information Systems Agency)	$2,559,331	<0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; down 6 since Jul 2024–Jun 2025.
96	Computer World Services Corp. Top agencies USAF (Department of the Air Force)	$2,530,356	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 85 since Jul 2024–Jun 2025.
97	Invictus JV, LLC Top agencies SEC (Securities and Exchange Commission)	$2,448,660	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 307 since Jul 2024–Jun 2025.
98	Hendall Inc. Top agencies HHS (Department of Health and Human Services)	$2,222,664	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Infinity Technologies Through Infinite Technologies, Inc. Top agencies USAF (Department of the Air Force)	$2,210,880	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 62 since Jul 2024–Jun 2025.
100	Nationwide It Services Inc. Top agencies Treasury (Department of the Treasury)	$2,174,301	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 64 since Jul 2024–Jun 2025.

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100 of 353 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC D3

Code	Net obligations	Largest contractor
D399 Other ADP and Telecommunications Services (includes data storage on tapes, compact disks, etc.)	$1,645,017,167	Accenture Federal Services LLC
D318 IT and Telecom – Integrated Hardware/Software/Services Solutions, Predominantly Services	$843,246,828	Peraton Inc.
D304 ADP Telecommunications and Transmission Services	$801,869,304	At&T Inc.
D301 ADP Facility Operation and Maintenance Services	$325,131,744	Securigence LLC
D302 ADP Systems Development Services	$202,638,060	General Dynamics Corporation
D316 Telecommunications Network Management Services	$195,241,164	General Dynamics Corporation

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 $5.26 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 D3 contractors in Jul 2025–Jun 2026?

1. At&T Inc. ($677M), 2. Peraton Inc. ($532M), 3. Accenture Federal Services LLC ($380M), 4. General Dynamics Corporation ($302M), 5. Oracle Health Government Services Inc. ($250M), 6. Science Applications International Corporation ($199M), 7. Lumen Technologies Government Solutions, Inc. ($174M), 8. Verizon ($173M), 9. Securigence LLC ($119M), 10. Guidehouse Inc. ($113M).

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