Top 100 Contractors in PSC DG10: IT and Telecom – Network as a Service, FY2021

Name: Top 100 Contractors in PSC DG10: IT and Telecom – Network as a Service, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 65% of FY2021 PSC DG10 contract dollars

Contract obligations: $281,817,850 Net of deobligations, by contracts coded PSC DG10
Contractors: 391 Parent companies with an obligation
Largest contractor: Verizon Communications Inc. $60.3 million, 21.2% 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	Verizon Communications Inc. 6 awardees, including Verizon Business Network Services LLC, Cellco Partnership and MCI Communications Services LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) DHS (Department of Homeland Security)	$60,341,099	21.2%	Rank history: #1 in FY2022, #2 in FY2023, #92 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
2	At&T Inc. 13 awardees, including Att Mobility LLC, At&T Enterprises, LLC and At&T Mobility National Accounts LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$32,231,505	11.3%	Rank history: #2 in FY2022, #1 in FY2023, #2 in FY2024 and #3 in FY2025; new, not ranked in FY2020.
3	Nana Regional Corporation Inc Through Affigent, LLC Top agencies HHS (Department of Health and Human Services)	$19,463,500	6.8%	Rank history: #10 in FY2022, #18 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
4	Stratos Government Services, Inc. Through Inmarsat Government, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) Army (Department of the Army)	$14,627,975	5.1%	Rank history: #5 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
5	Govsmart, Inc. Top agencies SBA (Small Business Administration) DOS (Department of State) USAF (Department of the Air Force)	$13,289,008	4.7%	Rank history: #45 in FY2022, #27 in FY2023, #26 in FY2024 and #42 in FY2025; new, not ranked in FY2020.
6	Lumen Technologies, Inc. 4 awardees, including Lumen Technologies Government Solutions, Inc. and Centurytel of Wisconsin, LLC Top agencies Army (Department of the Army) DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$10,153,472	3.6%	Rank history: #14 in FY2022, #9 in FY2023, #39 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
7	Disys Solutions, Inc. Top agencies DHA (Defense Health Agency) Commerce (Department of Commerce) NRC (Nuclear Regulatory Commission)	$10,004,246	3.5%	Rank history: #29 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
8	Analytic Services Inc. Through Advanced Technology International Top agencies WHS (DOD Washington Headquarters Service) OSD (Office of the Secretary of Defense)	$9,654,678	3.4%	Rank history: #15 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
9	V3Gate, LLC Top agencies Treasury (Department of the Treasury)	$8,095,237	2.8%	Rank history: #11 in FY2022, #11 in FY2023, #14 in FY2024 and #21 in FY2025; new, not ranked in FY2020.
10	Guidehouse Inc. Top agencies HHS (Department of Health and Human Services)	$6,760,621	2.4%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
11	Huna Totem Corp Through Distributed Computing System Solutions Provider, Inc. Top agencies SEC (Securities and Exchange Commission)	$5,015,544	1.8%	Rank history: not on the FY2022 list, #26 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
12	Manhattan Telecommunications Corporation LLC Top agencies Navy (Department of the Navy) RRB (Railroad Retirement Board) SEC (Securities and Exchange Commission)	$3,659,273	1.3%	Rank history: #18 in FY2022, #24 in FY2023, #23 in FY2024 and #32 in FY2025; new, not ranked in FY2020.
13	Nippon Telegraph and Telephone Corporation 5 awardees, including NTT Docomo, Inc., NTT East, Inc. and NTT West, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$3,174,391	1.1%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
14	Avaya Federal Solutions Inc. Top agencies DHS (Department of Homeland Security)	$3,161,838	1.1%	Rank history: not on the FY2022 list, #97 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
15	Siemens Aktiengesellschaft Through Siemens Industry Inc. Top agencies USAF (Department of the Air Force)	$3,053,284	1.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
16	KT Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$2,962,864	1.0%	Rank history: #22 in FY2022, #30 in FY2023, #61 in FY2024 and #39 in FY2025; new, not ranked in FY2020.
17	Kriaanet Inc. Top agencies USAF (Department of the Air Force)	$2,945,175	1.0%	Rank history: #54 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
18	Thundercat Technology, LLC Top agencies VA (Department of Veterans Affairs) Commerce (Department of Commerce) USSOCOM (United States Special Operations Command)	$2,935,630	1.0%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
19	Jacobs Engineering Group Inc. Through Amentum Technology, Inc. Top agencies MDA (DOD Missile Defense Agency)	$2,431,333	0.9%	Rank history: #33 in FY2022, #33 in FY2023, #22 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
20	Chainbridge Solutions Incorporated Top agencies DODEA (Department of Defense Education Activity)	$2,278,227	0.8%	Rank history: #43 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
21	Arwadh Trading Establishment Top agencies USAF (Department of the Air Force)	$2,191,941	0.8%	Rank history: #35 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
22	Lumen Technologies Government Solutions, Inc. 2 awardees Top agencies FEC (Federal Election Commission) USAF (Department of the Air Force) SEC (Securities and Exchange Commission)	$1,967,791	0.7%	Rank history: #72 in FY2022, not on the FY2023 list, #27 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
23	Agile Defense, LLC Top agencies Army (Department of the Army)	$1,944,014	0.7%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
24	CDW Corporation Through CDW Government LLC Top agencies DOS (Department of State) GAO (Government Accountability Office)	$1,796,329	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Turning Point Global Solutions LLC Top agencies HHS (Department of Health and Human Services)	$1,627,039	0.6%	Rank history: #40 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
26	Science Applications International Corporation Top agencies Navy (Department of the Navy)	$1,499,063	0.5%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
27	Kddi Corporation 3 awardees, including Okinawa Cellular Telephone Company and Otnet Company, Incorporated Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,490,705	0.5%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
28	Societe Internationale De Telecommunications Aeronautiques Scrl Through Sita Information Networking Computing USA Inc. Top agencies DHS (Department of Homeland Security)	$1,432,296	0.5%	Rank history: #46 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
29	Dynamo Technologies, LLC Top agencies USDA (Department of Agriculture)	$1,335,087	0.5%	Rank history: #58 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
30	Four Points Technology, L.L.C. Top agencies HHS (Department of Health and Human Services) OSD (Office of the Secretary of Defense) USDA (Department of Agriculture)	$1,250,190	0.4%	Rank history: #96 in FY2022, #67 in FY2023, #75 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
31	Rite-Solutions, Inc. Top agencies Navy (Department of the Navy)	$1,248,741	0.4%	Rank history: #24 in FY2022, #16 in FY2023, #10 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
32	Ebsco Industries Inc. Top agencies VA (Department of Veterans Affairs)	$1,212,189	0.4%	Rank history: #53 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	American Operations Corporation Through AOC Connect, LLC Top agencies DOJ (Department of Justice)	$1,162,479	0.4%	Rank history: #20 in FY2022, #21 in FY2023, #45 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
34	LG Uplus Corp. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,149,914	0.4%	Rank history: #51 in FY2022, #62 in FY2023, #83 in FY2024 and #71 in FY2025; new, not ranked in FY2020.
35	Carahsoft Technology Corp Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice) DOL (Department of Labor)	$936,858	0.3%	Rank history: #12 in FY2022, #51 in FY2023, #50 in FY2024 and #38 in FY2025; new, not ranked in FY2020.
36	Cadence Design Systems Inc. Top agencies DMEA (Defense Microelectronics Activity)	$878,700	0.3%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
37	Satcom Direct, Inc. Through Satcom Direct Communications, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$841,920	0.3%	Rank history: #30 in FY2022, #35 in FY2023, #74 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
38	Verizon Business Network Services LLC Top agencies Navy (Department of the Navy) DNFSB (Defense Nuclear Facilities Safety Board)	$820,115	0.3%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
39	Boingo Wireless, Inc. Top agencies USAF (Department of the Air Force)	$787,480	0.3%	Rank history: not on the FY2022 list, #74 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
40	Advanced Computer Concepts, Inc. Top agencies NRC (Nuclear Regulatory Commission) USAF (Department of the Air Force) DOJ (Department of Justice)	$760,419	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Granite Telecommunications, LLC Top agencies SEC (Securities and Exchange Commission) Navy (Department of the Navy) Army (Department of the Army)	$754,283	0.3%	Rank history: #91 in FY2022, #63 in FY2023, #59 in FY2024 and #55 in FY2025; new, not ranked in FY2020.
42	Time Warner Cable Enterprises LLC 4 awardees, including Charter Communications Operating LLC and Bright House Networks, LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$736,759	0.3%	Rank history: #59 in FY2022, #55 in FY2023, #72 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
43	Softbank Mobile Corp. Through Softbank Corp. Top agencies Navy (Department of the Navy)	$736,326	0.3%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	Cox Enterprises, Inc. 12 awardees, including Cox Communications Hampton Roads, L.L.C., Cox Nevada Telcom LLC and Cox California Telcom, LLC Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) Army (Department of the Army)	$685,509	0.2%	Rank history: #73 in FY2022, #83 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
45	Globecomm Systems Inc. Through Ultisat, Inc. Top agencies Commerce (Department of Commerce)	$665,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Satcom Direct Communications, Inc. 2 awardees, including Satcom Direct Government Communications, Inc. and Satcom Direct Government, LLC Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command) DOT (Department of Transportation)	$643,756	0.2%	Rank history: #42 in FY2022, #23 in FY2023, #31 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
47	RCS Radio and Satellite Communication Ltd Top agencies USAID (US Agency for International Development)	$581,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Mainstream IP Solutions, Inc. Top agencies USAF (Department of the Air Force)	$559,679	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Microsoft Corporation Top agencies DNFSB (Defense Nuclear Facilities Safety Board)	$529,900	0.2%	Rank history: not on the FY2022–FY2023 lists, #42 in FY2024 and #44 in FY2025; new, not ranked in FY2020.
50	Delta Bridge, Inc. Top agencies DOS (Department of State) USAID (US Agency for International Development)	$512,815	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Jasper Solutions Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$506,281	0.2%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
52	Actionet Inc. Top agencies DODEA (Department of Defense Education Activity)	$492,254	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Chaparral Holding Corp Top agencies Army (Department of the Army)	$483,990	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
54	The Bizzell Group LLC Top agencies HHS (Department of Health and Human Services)	$476,651	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Blue TECH Inc. Top agencies DHA (Defense Health Agency) USAF (Department of the Air Force)	$469,834	0.2%	Rank history: #52 in FY2022, #53 in FY2023, #57 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
56	New TECH Solutions, Inc. Top agencies HHS (Department of Health and Human Services) DOJ (Department of Justice) DOS (Department of State)	$465,983	0.2%	Rank history: #69 in FY2022, #99 in FY2023, #44 in FY2024 and #40 in FY2025; new, not ranked in FY2020.
57	NTT Docomo, Inc. Top agencies Navy (Department of the Navy)	$452,344	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Babylon Telecommunications, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$446,880	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	T-Mobile US Inc. Through T-Mobile Usa, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$433,053	0.2%	Rank history: #28 in FY2022, #25 in FY2023, #32 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
60	Teton Data Systems Top agencies SSA (Social Security Administration)	$427,658	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	Mythics, LLC 2 awardees, including Emergent, LLC Top agencies DOL (Department of Labor) Commerce (Department of Commerce)	$420,878	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Techanax LLC Top agencies DOI (Department of the Interior)	$416,704	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Frontier Communications Corporation 6 awardees, including Navajo Communications Co., Inc., Frontier North Inc. and Frontier California Inc. Top agencies HHS (Department of Health and Human Services) USAF (Department of the Air Force) Navy (Department of the Navy)	$416,087	0.1%	Rank history: #89 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
64	At&T Enterprises, LLC Top agencies VA (Department of Veterans Affairs)	$412,790	0.1%	Rank history: not on the FY2022–FY2023 lists, #5 in FY2024 and #12 in FY2025; new, not ranked in FY2020.
65	Equinix, Inc. Top agencies VA (Department of Veterans Affairs)	$407,549	0.1%	Rank history: #85 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
66	National Capitol Contracting LLC 9 awardees, including Comcast of Virginia, LLC, Comcast Cable Communications, LLC and Comcast of Connecticut, Inc. Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$399,421	0.1%	Rank history: #87 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
67	Ksapex, LLC Top agencies Army (Department of the Army)	$375,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Technica Corporation Top agencies USAF (Department of the Air Force)	$373,110	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	EPS Corporation Top agencies USAF (Department of the Air Force)	$364,320	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	The Hearst Corporation Through Fitch Solutions, Inc. Top agencies Treasury (Department of the Treasury)	$357,506	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Red River Technology LLC Top agencies VA (Department of Veterans Affairs)	$345,319	0.1%	Rank history: #13 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
72	Communications Professionals Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$324,925	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	101 Global Solutions Ltd Top agencies Army (Department of the Army)	$319,062	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
74	Sterling Computers Corporation Top agencies DODEA (Department of Defense Education Activity) Commerce (Department of Commerce)	$306,363	0.1%	Rank history: not on the FY2022 list, #92 in FY2023, #86 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
75	Oil Price Information Service LLC 2 awardees, including Markit North America Inc. and IHS Global Inc. Top agencies SEC (Securities and Exchange Commission) Navy (Department of the Navy)	$294,025	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Digitalspec, LLC Top agencies DOJ (Department of Justice)	$292,612	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Merlin International, Inc. Top agencies DOS (Department of State)	$287,960	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Broadwing, Inc. Through Cbts Technology Solutions LLC Top agencies Navy (Department of the Navy)	$260,191	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Reed Elsevier Inc. 2 awardees, including Portfolio Media Inc. and Elsevier Inc. Top agencies SEC (Securities and Exchange Commission) Navy (Department of the Navy)	$250,734	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	C & C International Computers & Consultants, Inc. Top agencies DHS (Department of Homeland Security)	$250,130	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Intelligent Waves LLC Top agencies Army (Department of the Army)	$250,103	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Leonardo S.p.A. Through Global Enterprise Solutions, Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command)	$231,911	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	N-Ovation Technology Group LLC Top agencies VA (Department of Veterans Affairs) USAF (Department of the Air Force)	$226,328	0.1%	Rank history: not on the FY2022 list, #77 in FY2023, not on the FY2024 list and #88 in FY2025; new, not ranked in FY2020.
84	Bloomberg LP 2 awardees, including Bloomberg Finance LP and Bloomberg Industry Group, Inc. Top agencies DHS (Department of Homeland Security) SEC (Securities and Exchange Commission) SSA (Social Security Administration)	$220,389	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Strategic Technology Institute Inc. Top agencies Navy (Department of the Navy)	$215,923	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Burton Enterprises, L.L.C. Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$214,422	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	PC Connection Inc. Through Govconnection Inc. Top agencies Army (Department of the Army) DOS (Department of State)	$213,136	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Access Haiti SA Top agencies DOS (Department of State)	$213,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Alvarez LLC Top agencies DISA (Defense Information Systems Agency) CPSC (Consumer Product Safety Commission)	$211,715	0.1%	Rank history: #64 in FY2022, not on the FY2023 list, #89 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
90	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force)	$210,218	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Yak-Tat Kwaan Incorporated Through Tecport Solutions Inc. Top agencies Navy (Department of the Navy)	$209,858	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	EMA Design Automation, Inc. Top agencies DMEA (Defense Microelectronics Activity)	$209,810	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	RTX Corporation Through Arinc Incorporated Top agencies DOT (Department of Transportation) USAF (Department of the Air Force) Navy (Department of the Navy)	$209,490	0.1%	Rank history: #8 in FY2022, #4 in FY2023, #4 in FY2024 and #7 in FY2025; new, not ranked in FY2020.
94	BT North America Inc. 2 awardees, including British Telecommunications Public Limited Company and 22Nd Century Networks, Inc. Top agencies DOS (Department of State) IMLS (The Institute of Museum and Library Services)	$205,196	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Choisys Technology Inc. Top agencies VA (Department of Veterans Affairs)	$204,412	0.1%	Rank history: not on the FY2022–FY2024 lists and #87 in FY2025; new, not ranked in FY2020.
96	Isec7 Government Services Inc. Top agencies DOJ (Department of Justice)	$202,000	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Ando Media, LLC Top agencies DMA (Defense Media Activity)	$199,716	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Sonatel SA 2 awardees, including Orange Mali SA Top agencies USAID (US Agency for International Development) DOS (Department of State)	$197,615	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Orioncom SARL Top agencies DOS (Department of State)	$197,349	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Aurora Systems Consulting Inc. Top agencies DOJ (Department of Justice)	$193,063	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 391 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 $285 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 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

Who were the top 10 PSC DG10 contractors in FY2021?

1. Verizon Communications Inc. ($60.3M), 2. At&T Inc. ($32.2M), 3. Nana Regional Corporation Inc ($19.5M), 4. Stratos Government Services, Inc. ($14.6M), 5. Govsmart, Inc. ($13.3M), 6. Lumen Technologies, Inc. ($10.2M), 7. Disys Solutions, Inc. ($10M), 8. Analytic Services Inc. ($9.65M), 9. V3Gate, LLC ($8.1M), 10. Guidehouse Inc. ($6.76M).

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