Top 100 Contractors in PSC DD: IT and Telecom – Delivery, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC DD: IT and Telecom – Delivery, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC DD: IT and Telecom – Delivery, FY2025.

The top 10 won 47% of PSC DD contract dollars from August 2025 through July 2026

Contract obligations: $2,000,649,498 Net of deobligations, by contracts coded PSC DD or a code under it
Contractors: 464 Parent companies with an obligation
Largest contractor: Booz Allen Hamilton Holding Corporation $175 million, 8.4% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Booz Allen Hamilton Holding Corporation 3 awardees, including Booz Allen Hamilton Inc. and Thunderyard Liberty JV LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHRA (Defense Human Resources Activity)	$175,460,220	8.4%	Rank history: #22 in FY2021, #4 in FY2022, #10 in FY2023, #9 in FY2024 and #5 in FY2025; up 9 since Aug 2024–Jul 2025.
2	SES Space & Defense Inc. Through Global Enterprise Solutions, Inc. Top agencies USAF (Department of the Air Force)	$117,723,202	5.6%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #4 in FY2025; up 1 since Aug 2024–Jul 2025.
3	At&T Inc. 9 awardees, including At&T Enterprises, LLC, Att Mobility LLC and Southwestern Bell Telephone Company, LLC Top agencies DHS (Department of Homeland Security) DOT (Department of Transportation) EPA (Environmental Protection Agency)	$114,744,030	5.5%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #7 in FY2025; up 3 since Aug 2024–Jul 2025.
4	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$113,197,326	5.4%	Rank history: #3 in FY2021, #2 in FY2022, #4 in FY2023, #2 in FY2024 and #1 in FY2025; down 2 since Aug 2024–Jul 2025.
5	Science Applications International Corporation 4 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOT (Department of Transportation)	$105,242,435	5.0%	Rank history: #35 in FY2021, #20 in FY2022, #5 in FY2023, #4 in FY2024 and #3 in FY2025; up 4 since Aug 2024–Jul 2025.
6	Accenture Federal Services LLC Top agencies DOE (Department of Energy) Commerce (Department of Commerce) DHA (Defense Health Agency)	$92,236,400	4.4%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #6 in FY2025; down 2 since Aug 2024–Jul 2025.
7	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) DHRA (Defense Human Resources Activity)	$84,156,061	4.0%	Rank history: not on the FY2021–FY2023 lists, #20 in FY2024 and #8 in FY2025; up 1 since Aug 2024–Jul 2025.
8	Tyto Athene, LLC 3 awardees, including Mindpoint Group LLC and Tyto Government Solutions Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$72,484,922	3.5%	Rank history: not on the FY2021 list, #64 in FY2022, not on the FY2023–FY2024 lists and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Leidos Holdings, Inc. 5 awardees, including Leidos, Inc. Top agencies SEC (Securities and Exchange Commission) FTC (Federal Trade Commission) HHS (Department of Health and Human Services)	$64,748,851	3.1%	Rank history: #10 in FY2021, #5 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; down 8 since Aug 2024–Jul 2025.
10	Stratascor, LLC Top agencies Navy (Department of the Navy)	$49,976,772	2.4%	Rank history: not on the FY2021 list, #8 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	DV United LLC Top agencies DHS (Department of Homeland Security)	$48,555,033	2.3%	Rank history: not on the FY2021–FY2022 lists, #8 in FY2023, #7 in FY2024 and #9 in FY2025; unchanged since Aug 2024–Jul 2025.
12	Omni Fed LLC Top agencies DCSA (Defense Counterintelligence and Security Agency)	$45,912,184	2.2%	Rank history: #94 in FY2021, #68 in FY2022, #47 in FY2023, #49 in FY2024 and #16 in FY2025; up 4 since Aug 2024–Jul 2025.
13	Lumen Technologies, Inc. 6 awardees, including Lumen Technologies Government Solutions, Inc. and Level 3 Communications, LLC Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy) OPM (Office of Personnel Management)	$45,238,518	2.2%	Rank history: #12 in FY2021, #78 in FY2022, #2 in FY2023, #12 in FY2024 and #15 in FY2025; up 255 since Aug 2024–Jul 2025.
14	Rei Systems, Inc. Through Adg-Rei Technology Ventures, LLC Top agencies DHS (Department of Homeland Security)	$31,232,424	1.5%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
15	Alpha Omega Integration LLC Top agencies DHS (Department of Homeland Security)	$28,192,117	1.4%	Rank history: not on the FY2021–FY2022 lists, #17 in FY2023, #10 in FY2024 and #19 in FY2025; up 12 since Aug 2024–Jul 2025.
16	Sparksoft Corporation Top agencies HHS (Department of Health and Human Services)	$25,679,148	1.2%	Rank history: not on the FY2021–FY2024 lists and #13 in FY2025; down 4 since Aug 2024–Jul 2025.
17	ITC Federal, LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$25,658,432	1.2%	Rank history: not on the FY2021 list, #79 in FY2022, not on the FY2023 list, #13 in FY2024 and #14 in FY2025; up 1 since Aug 2024–Jul 2025.
18	ICF International Inc. Through ICF Incorporated, L.L.C. Top agencies HHS (Department of Health and Human Services)	$24,690,561	1.2%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #12 in FY2025; up 16 since Aug 2024–Jul 2025.
19	C4 Planning Solutions, LLC Top agencies Navy (Department of the Navy)	$24,431,940	1.2%	Rank history: #13 in FY2021, #16 in FY2022, #20 in FY2023, #17 in FY2024 and #17 in FY2025; down 2 since Aug 2024–Jul 2025.
20	Iron Vine Security LLC Top agencies Commerce (Department of Commerce)	$20,367,634	1.0%	Rank history: #25 in FY2021, #12 in FY2022, not on the FY2023 list, #14 in FY2024 and #23 in FY2025; up 21 since Aug 2024–Jul 2025.
21	CMA Technology Inc. Top agencies HHS (Department of Health and Human Services)	$18,671,238	0.9%	Rank history: not on the FY2021–FY2022 lists, #79 in FY2023, #24 in FY2024 and #32 in FY2025; up 3 since Aug 2024–Jul 2025.
22	Dark Wolf Solutions, LLC Top agencies USAF (Department of the Air Force)	$16,814,716	0.8%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023, #28 in FY2024 and #27 in FY2025; up 8 since Aug 2024–Jul 2025.
23	Deloitte Through Deloitte Consulting LLP Top agencies USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$16,695,220	0.8%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #38 in FY2025; up 105 since Aug 2024–Jul 2025.
24	Nana Regional Corporation, Inc. 2 awardees, including Akima Systems Engineering LLC and Affigent, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) Commerce (Department of Commerce)	$14,965,544	0.7%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 57 since Aug 2024–Jul 2025.
25	Soft TECH Consulting, Inc. Top agencies FCC (Federal Communications Commission)	$14,911,540	0.7%	Rank history: #74 in FY2021, not on the FY2022 list, #31 in FY2023, #31 in FY2024 and #39 in FY2025; up 4 since Aug 2024–Jul 2025.
26	Dell Technologies Inc. Through Dell Federal Systems L.P Top agencies Commerce (Department of Commerce)	$14,844,563	0.7%	Rank history: not on the FY2021–FY2023 lists, #27 in FY2024 and #53 in FY2025; up 41 since Aug 2024–Jul 2025.
27	Metaphase Consulting LLC Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security) DOI (Department of the Interior)	$13,024,997	0.6%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2023, #77 in FY2024 and #33 in FY2025; up 48 since Aug 2024–Jul 2025.
28	Saliense Consulting LLC Top agencies Navy (Department of the Navy)	$12,704,473	0.6%	Rank history: not on the FY2021–FY2022 lists, #58 in FY2023, #64 in FY2024 and #48 in FY2025; up 35 since Aug 2024–Jul 2025.
29	Hill Asc, Inc. Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice)	$12,635,430	0.6%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and #25 in FY2025; up 16 since Aug 2024–Jul 2025.
30	Guidehouse Inc. 4 awardees, including Peraton Enterprise Solutions LLC, Peraton Inc. and Onsolve LLC Top agencies Army (Department of the Army) DHA (Defense Health Agency) GSA (General Services Administration)	$12,052,061	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31	Galapagos Federal Systems LLC Top agencies Army (Department of the Army)	$10,968,946	0.5%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #25 in FY2024 and #26 in FY2025; up 6 since Aug 2024–Jul 2025.
32	Bnl, Inc. Top agencies Commerce (Department of Commerce)	$10,962,788	0.5%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 16 since Aug 2024–Jul 2025.
33	Accelgov LLC Top agencies NARA (National Archives and Records Administration)	$10,856,740	0.5%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2023, #32 in FY2024 and #31 in FY2025; down 1 since Aug 2024–Jul 2025.
34	Yudrio Inc Top agencies DOJ (Department of Justice)	$10,652,415	0.5%	Rank history: not on the FY2021–FY2023 lists, #84 in FY2024 and #28 in FY2025; up 10 since Aug 2024–Jul 2025.
35	Koniag, Inc. 5 awardees, including Koniag Data Solutions LLC, Koniag It Systems, LLC and Eagle Harbor Solutions LLC Top agencies USDA (Department of Agriculture) SBA (Small Business Administration) HHS (Department of Health and Human Services)	$10,588,322	0.5%	Rank history: #54 in FY2021, not on the FY2022–FY2024 lists and #42 in FY2025; new, not ranked in Aug 2024–Jul 2025.
36	Medidata Solutions, Inc. Top agencies HHS (Department of Health and Human Services)	$10,153,072	0.5%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #36 in FY2025; up 11 since Aug 2024–Jul 2025.
37	Changeis, Inc. Top agencies DOT (Department of Transportation)	$9,753,408	0.5%	Rank history: not on the FY2021 list, #47 in FY2022, #37 in FY2023, #46 in FY2024 and #35 in FY2025; up 5 since Aug 2024–Jul 2025.
38	Firefly Aerospace Inc. Through Scitec Innovations LLC Top agencies USAF (Department of the Air Force)	$8,670,139	0.4%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Cisco Systems Inc. Top agencies DOS (Department of State)	$8,639,709	0.4%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 14 since Aug 2024–Jul 2025.
40	Verizon 4 awardees, including Verizon Business Network Services LLC, Cellco Partnership and Frontier Southwest Incorporated Top agencies Army (Department of the Army) GAO (Government Accountability Office) Navy (Department of the Navy)	$8,564,883	0.4%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #22 in FY2025; down 9 since Aug 2024–Jul 2025.
41	Axle Informatics, LLC Through Gama-1 Technologies, LLC Top agencies Commerce (Department of Commerce)	$8,537,131	0.4%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	Asgn Incorporated Through ECS Federal, LLC Top agencies DOJ (Department of Justice)	$7,940,241	0.4%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #85 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Alvarez LLC Top agencies VA (Department of Veterans Affairs) MCC (Millennium Challenge Corporation) USAF (Department of the Air Force)	$7,814,232	0.4%	Rank history: not on the FY2021–FY2025 lists; up 148 since Aug 2024–Jul 2025.
44	Evotech, LLC Top agencies DHS (Department of Homeland Security)	$7,802,063	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
45	Can Softtech Inc Top agencies DLA (Defense Logistics Agency)	$7,403,318	0.4%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
46	Lalaith Astor Technical Consulting House, LLC Top agencies Commerce (Department of Commerce)	$7,237,156	0.3%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #68 in FY2025; up 26 since Aug 2024–Jul 2025.
47	Technology, Automation & Management, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$6,935,447	0.3%	Rank history: #47 in FY2021, #55 in FY2022, not on the FY2023 list, #58 in FY2024 and #51 in FY2025; up 15 since Aug 2024–Jul 2025.
48	Patriot LLC Top agencies SBA (Small Business Administration)	$6,262,462	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023, #63 in FY2024 and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	Earth Resources Technology, LLC Top agencies Commerce (Department of Commerce)	$6,116,617	0.3%	Rank history: not on the FY2021 list, #53 in FY2022, #57 in FY2023, #57 in FY2024 and #55 in FY2025; up 11 since Aug 2024–Jul 2025.
50	International Business Machines Corporation 2 awardees Top agencies Army (Department of the Army) Navy (Department of the Navy) Commerce (Department of Commerce)	$5,925,453	0.3%	Rank history: #66 in FY2021, #70 in FY2022, #72 in FY2023, #71 in FY2024 and #50 in FY2025; up 20 since Aug 2024–Jul 2025.
51	Sagewind Capital LLC Through Softrams LLC Top agencies DHS (Department of Homeland Security)	$5,774,656	0.3%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
52	PAR Technology Corporation Through Rome Research, LLC Top agencies Navy (Department of the Navy)	$5,734,857	0.3%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 17 since Aug 2024–Jul 2025.
53	Microhealth LLC Top agencies HHS (Department of Health and Human Services)	$5,648,985	0.3%	Rank history: #26 in FY2021, #34 in FY2022, #25 in FY2023, #18 in FY2024 and #24 in FY2025; down 31 since Aug 2024–Jul 2025.
54	Teksynap Corporation Top agencies NRC (Nuclear Regulatory Commission) DTRA (Defense Threat Reduction Agency)	$5,610,473	0.3%	Rank history: #33 in FY2021, #44 in FY2022, #33 in FY2023, #40 in FY2024 and #44 in FY2025; down 14 since Aug 2024–Jul 2025.
55	Hunatek System Solutions LLC Top agencies SBA (Small Business Administration)	$5,554,385	0.3%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 36 since Aug 2024–Jul 2025.
56	Govcio, LLC Top agencies Treasury (Department of the Treasury)	$5,351,810	0.3%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; down 2 since Aug 2024–Jul 2025.
57	Raye It Consulting LLC Top agencies Commerce (Department of Commerce)	$5,344,873	0.3%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; up 29 since Aug 2024–Jul 2025.
58	Circana Group, L.P. Top agencies Commerce (Department of Commerce)	$5,286,582	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Spatial Front Inc Top agencies DHS (Department of Homeland Security) Commerce (Department of Commerce)	$5,056,862	0.2%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Manhattan Telecommunications Corporation LLC Top agencies NARA (National Archives and Records Administration) DHS (Department of Homeland Security)	$4,873,012	0.2%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023, not on the FY2024 list and #56 in FY2025; up 28 since Aug 2024–Jul 2025.
61	Leisnoi Professional Services, LLC Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$4,858,890	0.2%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 79 since Aug 2024–Jul 2025.
62	Reston Consulting Group, Inc. Top agencies Treasury (Department of the Treasury) Commerce (Department of Commerce)	$4,856,578	0.2%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; up 37 since Aug 2024–Jul 2025.
63	Calista Corp Through Straitsys Inc. Top agencies DOJ (Department of Justice)	$4,855,690	0.2%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	Federal Working Group, Inc. Top agencies Commerce (Department of Commerce)	$4,833,184	0.2%	Rank history: not on the FY2021–FY2025 lists; up 58 since Aug 2024–Jul 2025.
65	Essnova Solutions Inc. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$4,683,671	0.2%	Rank history: not on the FY2021–FY2025 lists; up 82 since Aug 2024–Jul 2025.
66	Tista Science and Technology Corporation Top agencies HHS (Department of Health and Human Services) USDA (Department of Agriculture)	$4,605,082	0.2%	Rank history: not on the FY2021 list, #36 in FY2022, #26 in FY2023, #35 in FY2024 and #34 in FY2025; down 10 since Aug 2024–Jul 2025.
67	Bart & Associates, LLC Through Idoxsolutions, Inc. Top agencies GSA (General Services Administration)	$4,580,936	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Namauu Technological and Industrial LLC Top agencies USAF (Department of the Air Force)	$4,520,904	0.2%	Rank history: not on the FY2021–FY2022 lists, #82 in FY2023, #85 in FY2024 and #71 in FY2025; down 3 since Aug 2024–Jul 2025.
69	Riva Solutions Inc Top agencies Commerce (Department of Commerce)	$4,447,006	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 74 since Aug 2024–Jul 2025.
70	Rividium Inc. Top agencies DHS (Department of Homeland Security)	$4,445,354	0.2%	Rank history: not on the FY2021–FY2025 lists; up 87 since Aug 2024–Jul 2025.
71	Agile Defense, LLC Top agencies Army (Department of the Army)	$4,433,190	0.2%	Rank history: #58 in FY2021, #51 in FY2022, #84 in FY2023, not on the FY2024 list and #41 in FY2025; down 16 since Aug 2024–Jul 2025.
72	Nielsen Consumer LLC Top agencies Commerce (Department of Commerce)	$4,400,000	0.2%	Rank history: not on the FY2021–FY2025 lists; up 61 since Aug 2024–Jul 2025.
73	Ivory Cloud LLC Top agencies USDA (Department of Agriculture)	$4,304,883	0.2%	Rank history: not on the FY2021–FY2025 lists; up 93 since Aug 2024–Jul 2025.
74	Bridgephase LLC Top agencies DHS (Department of Homeland Security)	$4,186,196	0.2%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and not on the FY2025 list; up 21 since Aug 2024–Jul 2025.
75	Digital Enterprise Solutions, Inc. Top agencies Navy (Department of the Navy)	$4,177,389	0.2%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 18 since Aug 2024–Jul 2025.
76	Seneca Strategic Partners, LLC Top agencies USDA (Department of Agriculture)	$4,082,203	0.2%	Rank history: not on the FY2021 list, #71 in FY2022, #92 in FY2023, #76 in FY2024 and #77 in FY2025; down 2 since Aug 2024–Jul 2025.
77	Seventh Emergence Solutions, LLC Top agencies Army (Department of the Army)	$4,080,816	0.2%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 15 since Aug 2024–Jul 2025.
78	Countertrade Products, Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$4,054,756	0.2%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 182 since Aug 2024–Jul 2025.
79	Weris, Inc. Top agencies DHS (Department of Homeland Security)	$4,043,566	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	Computer World Services Corp. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$3,970,685	0.2%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #94 in FY2025; up 228 since Aug 2024–Jul 2025.
81	A-Tek, Inc. Through Mackson Consulting, LLC Top agencies HHS (Department of Health and Human Services)	$3,900,750	0.2%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
82	Thundercat Technology LLC Top agencies Commerce (Department of Commerce) VA (Department of Veterans Affairs)	$3,620,400	0.2%	Rank history: not on the FY2021 list, #35 in FY2022, #59 in FY2023, #48 in FY2024 and #43 in FY2025; down 31 since Aug 2024–Jul 2025.
83	Westwind Computer Products, Inc. Top agencies DOJ (Department of Justice)	$3,598,847	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	Validatek-Citi, LLC Top agencies DHS (Department of Homeland Security)	$3,353,842	0.2%	Rank history: #39 in FY2021, #50 in FY2022, #56 in FY2023, #59 in FY2024 and #90 in FY2025; down 23 since Aug 2024–Jul 2025.
85	Ultisat Inc Top agencies Commerce (Department of Commerce) DOT (Department of Transportation) HHS (Department of Health and Human Services)	$3,308,335	0.2%	Rank history: not on the FY2021–FY2025 lists; up 299 since Aug 2024–Jul 2025.
86	Hadron Industries, Inc. Top agencies Commerce (Department of Commerce)	$3,163,550	0.2%	Rank history: not on the FY2021–FY2024 lists and #95 in FY2025; new, not ranked in Aug 2024–Jul 2025.
87	Concept Plus, LLC Top agencies Commerce (Department of Commerce)	$3,128,051	0.1%	Rank history: not on the FY2021–FY2022 lists, #64 in FY2023, #74 in FY2024 and #52 in FY2025; down 23 since Aug 2024–Jul 2025.
88	Link Solutions Inc. Top agencies Army (Department of the Army)	$3,103,864	0.1%	Rank history: not on the FY2021–FY2025 lists; up 311 since Aug 2024–Jul 2025.
89	Fedtec LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$3,069,232	0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #57 in FY2025; down 30 since Aug 2024–Jul 2025.
90	Northramp LLC Top agencies NRC (Nuclear Regulatory Commission)	$2,987,000	0.1%	Rank history: not on the FY2021–FY2025 lists; up 47 since Aug 2024–Jul 2025.
91	Indigo IT, LLC Top agencies Army (Department of the Army)	$2,975,785	0.1%	Rank history: not on the FY2021–FY2025 lists; up 32 since Aug 2024–Jul 2025.
92	The Aleut Corporation Through Aleut Information Technology LLC Top agencies USDA (Department of Agriculture)	$2,960,442	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Prime Source Technologies, LLC Top agencies DOS (Department of State)	$2,865,600	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	DNI Emerging Technologies, LLC Top agencies NRC (Nuclear Regulatory Commission)	$2,754,946	0.1%	Rank history: not on the FY2021–FY2025 lists; up 66 since Aug 2024–Jul 2025.
95	Calnet Inc. Top agencies Treasury (Department of the Treasury)	$2,741,346	0.1%	Rank history: not on the FY2021–FY2025 lists; up 229 since Aug 2024–Jul 2025.
96	Storage Strategies Inc Top agencies Navy (Department of the Navy)	$2,727,914	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; down 20 since Aug 2024–Jul 2025.
97	The One 23 Group Inc. Top agencies DOJ (Department of Justice)	$2,671,021	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Rainbow Data Systems, Inc. Top agencies DCMA (Defense Contract Management Agency) DLA (Defense Logistics Agency)	$2,619,781	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 26 since Aug 2024–Jul 2025.
99	Dsquorum LLC Top agencies Commerce (Department of Commerce)	$2,500,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 40 since Aug 2024–Jul 2025.
100	North Stone LLC Top agencies USAF (Department of the Air Force)	$2,499,281	0.1%	Rank history: not on the FY2021–FY2025 lists; up 53 since Aug 2024–Jul 2025.

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100 of 464 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC DD

Code	Net obligations	Largest contractor
DD01 IT and Telecom – Service Delivery Support Services: ITSM, Operations Center, Project/PM (Labor)	$2,000,649,498	Booz Allen Hamilton Holding 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 $2.09 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 Aug 2024–Jul 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 DD contractors in Aug 2025–Jul 2026?

1. Booz Allen Hamilton Holding Corporation ($175M), 2. SES Space & Defense Inc. ($118M), 3. At&T Inc. ($115M), 4. General Dynamics Corporation ($113M), 5. Science Applications International Corporation ($105M), 6. Accenture Federal Services LLC ($92.2M), 7. Peraton Inc. ($84.2M), 8. Tyto Athene, LLC ($72.5M), 9. Leidos Holdings, Inc. ($64.7M), 10. Stratascor, LLC ($50M).

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