Top 25 Contractors in PSC D301: ADP Facility Operation and Maintenance Services, Jul 2025–Jun 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Securigence LLC Top agencies DARPA (Defense Advanced Research Projects Agency) WHS (DOD Washington Headquarters Service)	$118,600,737	34.3%	Rank history: #9 in FY2021, #3 in FY2022, #3 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Peraton Inc. 2 awardees, including Peraton Enterprise Solutions LLC Top agencies ED (Department of Education) DOL (Department of Labor)	$70,890,712	20.5%	Rank history: not on the FY2021 list, #48 in FY2022, not on the FY2023 list, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	The Chenega Corporation Through Securigence LLC Top agencies DARPA (Defense Advanced Research Projects Agency)	$36,918,616	10.7%	Rank history: #46 in FY2021, #35 in FY2022, #24 in FY2023, #78 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
4	Guidehouse Inc. Through Peraton Enterprise Solutions LLC Top agencies DOL (Department of Labor) ED (Department of Education)	$27,580,707	8.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
5	General Dynamics Corporation 4 awardees, including General Dynamics Information Technology, Inc. Top agencies SEC (Securities and Exchange Commission) HHS (Department of Health and Human Services)	$26,604,741	7.7%	Rank history: #4 in FY2021, #2 in FY2022, #2 in FY2023, #4 in FY2024 and #3 in FY2025; down 2 since Jul 2024–Jun 2025.
6	Directviz Solutions, LLC Top agencies Army (Department of the Army)	$16,760,581	4.9%	Rank history: #17 in FY2021, #9 in FY2022, #5 in FY2023, #6 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
7	22Nd Century Technologies, Inc. Top agencies Commerce (Department of Commerce)	$7,846,539	2.3%	Rank history: #20 in FY2021, #14 in FY2022, #8 in FY2023, #10 in FY2024 and #6 in FY2025; up 5 since Jul 2024–Jun 2025.
8	Tsymmetry Inc. Top agencies DOS (Department of State)	$7,347,560	2.1%	Rank history: #35 in FY2021, #23 in FY2022, #20 in FY2023, #11 in FY2024 and #9 in FY2025; up 3 since Jul 2024–Jun 2025.
9	Teksynap Corporation Top agencies DTRA (Defense Threat Reduction Agency)	$6,356,005	1.8%	Rank history: #28 in FY2021, #6 in FY2022, #15 in FY2023, #17 in FY2024 and #11 in FY2025; up 13 since Jul 2024–Jun 2025.
10	Pyramid Systems Inc. Top agencies HUD (Department of Housing and Urban Development)	$4,416,365	1.3%	Rank history: not on the FY2021 list, #37 in FY2022, #12 in FY2023, #14 in FY2024 and #10 in FY2025; down 2 since Jul 2024–Jun 2025.
11	Smartronix, LLC Top agencies Navy (Department of the Navy)	$3,046,289	0.9%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; down 1 since Jul 2024–Jun 2025.
12	Lumen Technologies Government Solutions, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$2,779,592	0.8%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #25 in FY2025; up 3 since Jul 2024–Jun 2025.
13	Horus Technology Solutions Inc. Top agencies HHS (Department of Health and Human Services)	$1,435,781	0.4%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #16 in FY2025; up 8 since Jul 2024–Jun 2025.
14	Spec, LLC Top agencies DISA (Defense Information Systems Agency)	$914,558	0.3%	Rank history: #88 in FY2021, #75 in FY2022, #46 in FY2023, #27 in FY2024 and #18 in FY2025; unchanged since Jul 2024–Jun 2025.
15	Arctic Slope Regional Corporation 3 awardees, including Asrc Federal Data Networx, LLC Top agencies NRC (Nuclear Regulatory Commission)	$800,667	0.2%	Rank history: #25 in FY2021, not on the FY2022–FY2023 lists, #45 in FY2024 and #23 in FY2025; up 15 since Jul 2024–Jun 2025.
16	Syneren Technologies Corporation Top agencies DHA (Defense Health Agency)	$501,330	0.1%	Rank history: not on the FY2021 list, #95 in FY2022, #65 in FY2023, #43 in FY2024 and #22 in FY2025; up 8 since Jul 2024–Jun 2025.
17	Cherokee Nation Operational Solutions, L.L.C. Top agencies DHA (Defense Health Agency)	$484,828	0.1%	Rank history: not on the FY2021 list, #86 in FY2022, #68 in FY2023, #44 in FY2024 and #21 in FY2025; up 10 since Jul 2024–Jun 2025.
18	Customer Value Partners, LLC Top agencies DHS (Department of Homeland Security)	$368,640	0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, #46 in FY2024 and #28 in FY2025; new, not ranked in Jul 2024–Jun 2025.
19	CC Communications Top agencies Navy (Department of the Navy)	$367,659	0.1%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, not on the FY2024 list and #24 in FY2025; up 12 since Jul 2024–Jun 2025.
20	Brothers Mechanical Services LLC Top agencies DOJ (Department of Justice)	$350,148	0.1%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #29 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	Sharp Solutions Inc. Top agencies NRC (Nuclear Regulatory Commission)	$199,699	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, #58 in FY2024 and #35 in FY2025; up 23 since Jul 2024–Jun 2025.
22	Continental Utility Solutions Inc. Top agencies DOI (Department of the Interior)	$38,600	<0.1%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #40 in FY2025; up 33 since Jul 2024–Jun 2025.
23	Agile Defense, LLC Top agencies Navy (Department of the Navy)	$31,574	<0.1%	Rank history: #13 in FY2021, #56 in FY2022, not on the FY2023–FY2024 lists and #19 in FY2025; up 2 since Jul 2024–Jun 2025.
24	Siemens Industry Inc. Top agencies DOE (Department of Energy)	$20,377	<0.1%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #34 in FY2025; up 11 since Jul 2024–Jun 2025.
25	Maxair Mechanical LLC Top agencies NRC (Nuclear Regulatory Commission)	$7,920	<0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #43 in FY2025; up 25 since Jul 2024–Jun 2025.

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 $346 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.
• 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.

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