Top 100 Contractors in NAICS 56111: Office Administrative Services, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 56111: Office Administrative Services, 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 NAICS 56111: Office Administrative Services, FY2025.

The top 10 won 46% of NAICS 56111 contract dollars from August 2025 through July 2026

Contract obligations: $548,591,646 Net of deobligations, by contracts coded NAICS 56111 or a code under it
Contractors: 355 Parent companies with an obligation
Largest contractor: Trace Systems, Inc. $67.8 million, 11.4% 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	Trace Systems, Inc. 2 awardees Top agencies Army (Department of the Army)	$67,776,329	11.4%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; up 18 since Aug 2024–Jul 2025.
2	Arctic Slope Regional Corporation 3 awardees, including Agile Decision Sciences, LLC, Asrc Federal Facilities Logistics LLC and Asrc Federal Business Innovation LLC Top agencies NASA (National Aeronautics and Space Administration) DOJ (Department of Justice) DOD (Department of Defense)	$40,650,545	6.8%	Rank history: #36 in FY2021, not on the FY2022–FY2023 lists, #30 in FY2024 and #2 in FY2025; up 32 since Aug 2024–Jul 2025.
3	Bowhead Marine Support Services, LLC 2 awardees Top agencies DHA (Defense Health Agency) DHS (Department of Homeland Security)	$33,920,346	5.7%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and #4 in FY2025; down 1 since Aug 2024–Jul 2025.
4	Koniag Brillient, LLC Top agencies DHS (Department of Homeland Security)	$22,801,183	3.8%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and #8 in FY2025; up 2 since Aug 2024–Jul 2025.
5	1 - 8A Iso9001 Fedsync-Bfs, LLC Top agencies NASA (National Aeronautics and Space Administration)	$21,129,989	3.5%	Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; up 10 since Aug 2024–Jul 2025.
6	Kent Campa & Kate Inc. Top agencies DOS (Department of State) VA (Department of Veterans Affairs) HHS (Department of Health and Human Services)	$20,469,642	3.4%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2023, #4 in FY2024 and #6 in FY2025; down 3 since Aug 2024–Jul 2025.
7	LMI Consulting, LLC Top agencies USAF (Department of the Air Force) OSD (Office of the Secretary of Defense)	$19,829,775	3.3%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #6 in FY2024 and #7 in FY2025; unchanged since Aug 2024–Jul 2025.
8	Sciolex Corporation Top agencies DHS (Department of Homeland Security)	$17,795,332	3.0%	Rank history: #1 in FY2021, #2 in FY2022, #4 in FY2023, #7 in FY2024 and #5 in FY2025; down 3 since Aug 2024–Jul 2025.
9	Katmai North America LLC Top agencies Army (Department of the Army)	$16,008,741	2.7%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2023, #12 in FY2024 and #11 in FY2025; unchanged since Aug 2024–Jul 2025.
10	National Industries for the Blind Top agencies DCMA (Defense Contract Management Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$13,977,068	2.3%	Rank history: #9 in FY2021, #7 in FY2022, #19 in FY2023, #13 in FY2024 and #10 in FY2025; down 2 since Aug 2024–Jul 2025.
11	Federal Staffing Resources, LLC Top agencies DHA (Defense Health Agency)	$13,775,044	2.3%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; unchanged since Aug 2024–Jul 2025.
12	Ivyhill Technologies LLC Top agencies DHA (Defense Health Agency)	$9,072,170	1.5%	Rank history: not on the FY2021–FY2024 lists and #16 in FY2025; up 12 since Aug 2024–Jul 2025.
13	Fury Solutions LLC Top agencies USAF (Department of the Air Force)	$8,432,480	1.4%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #24 in FY2024 and #14 in FY2025; up 5 since Aug 2024–Jul 2025.
14	Versability Resources, Inc. Top agencies Navy (Department of the Navy)	$8,423,719	1.4%	Rank history: #34 in FY2021, #27 in FY2022, #29 in FY2023, #29 in FY2024 and #44 in FY2025; up 94 since Aug 2024–Jul 2025.
15	Nana Regional Corporation, Inc. 4 awardees, including Five Rivers Analytics, LLC and Akima Systems Engineering LLC Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security)	$7,376,761	1.2%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16	Servicesource Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) GSA (General Services Administration)	$6,831,811	1.1%	Rank history: not on the FY2021–FY2023 lists, #36 in FY2024 and #29 in FY2025; up 17 since Aug 2024–Jul 2025.
17	Artex Group LLC Top agencies DOJ (Department of Justice)	$6,576,992	1.1%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
18	Goodwill Industries of San Antonio Contract Services Top agencies USAF (Department of the Air Force)	$6,210,745	1.0%	Rank history: #27 in FY2021, #32 in FY2022, #20 in FY2023, #23 in FY2024 and #30 in FY2025; up 2 since Aug 2024–Jul 2025.
19	Culmen International, LLC Top agencies Army (Department of the Army)	$6,164,614	1.0%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #26 in FY2025; up 19 since Aug 2024–Jul 2025.
20	Choisys Technology Inc. Top agencies DOS (Department of State)	$6,000,000	1.0%	Rank history: not on the FY2021 list, #22 in FY2022, #13 in FY2023, #16 in FY2024 and #24 in FY2025; down 7 since Aug 2024–Jul 2025.
21	Mora Consultants LLC Top agencies Navy (Department of the Navy) GSA (General Services Administration)	$5,870,774	1.0%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023, #28 in FY2024 and #18 in FY2025; up 1 since Aug 2024–Jul 2025.
22	Techop Solutions International, Inc. Top agencies DHS (Department of Homeland Security)	$5,689,420	1.0%	Rank history: #14 in FY2021, #16 in FY2022, #12 in FY2023, #11 in FY2024 and #27 in FY2025; up 4 since Aug 2024–Jul 2025.
23	Global Connections To Employment, Inc. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy) Army (Department of the Army)	$5,538,210	0.9%	Rank history: not on the FY2021–FY2025 lists; up 91 since Aug 2024–Jul 2025.
24	JP Logistics & Consulting, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$4,572,545	0.8%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #41 in FY2025; up 13 since Aug 2024–Jul 2025.
25	Crossroads Talent Solutions, LLC Top agencies Army (Department of the Army) DOJ (Department of Justice) USAF (Department of the Air Force)	$4,494,099	0.8%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #37 in FY2025; up 15 since Aug 2024–Jul 2025.
26	Contemporaries, Inc. Top agencies HHS (Department of Health and Human Services)	$4,411,307	0.7%	Rank history: #49 in FY2021, #78 in FY2022, #34 in FY2023, #32 in FY2024 and #48 in FY2025; up 21 since Aug 2024–Jul 2025.
27	Sourceamerica Top agencies DHA (Defense Health Agency)	$4,151,240	0.7%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #20 in FY2024 and #13 in FY2025; down 10 since Aug 2024–Jul 2025.
28	Tmc-Telesolv Top agencies DHS (Department of Homeland Security)	$4,148,844	0.7%	Rank history: #33 in FY2021, #20 in FY2022, #14 in FY2023, #18 in FY2024 and #32 in FY2025; up 21 since Aug 2024–Jul 2025.
29	Vision Centric Inc Top agencies DHS (Department of Homeland Security)	$4,129,766	0.7%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023, #27 in FY2024 and #25 in FY2025; down 4 since Aug 2024–Jul 2025.
30	PCI Productions LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,833,471	0.6%	Rank history: not on the FY2021–FY2023 lists, #44 in FY2024 and #28 in FY2025; down 3 since Aug 2024–Jul 2025.
31	The Chenega Corporation 4 awardees, including Chenega Analytic Business Solutions, LLC, Astraeus Operations, LLC and Chenega Naswik International LLC Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy) Army (Department of the Army)	$3,683,849	0.6%	Rank history: not on the FY2021 list, #54 in FY2022, #52 in FY2023, not on the FY2024 list and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32	Nakupuna Consulting LLC Top agencies OSD (Office of the Secretary of Defense)	$3,652,551	0.6%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #36 in FY2025; unchanged since Aug 2024–Jul 2025.
33	Nemean Solutions LLC Top agencies Army (Department of the Army)	$3,573,284	0.6%	Rank history: not on the FY2021–FY2023 lists, #52 in FY2024 and #33 in FY2025; up 3 since Aug 2024–Jul 2025.
34	Depaul Industries Top agencies Navy (Department of the Navy) DOT (Department of Transportation) Army (Department of the Army)	$3,492,974	0.6%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #38 in FY2025; down 4 since Aug 2024–Jul 2025.
35	Sol Engineering Services, LLC Top agencies Army (Department of the Army)	$3,435,836	0.6%	Rank history: not on the FY2021–FY2022 lists, #73 in FY2023, #48 in FY2024 and #31 in FY2025; down 6 since Aug 2024–Jul 2025.
36	T L Newman Incorporated Through Trevor L Newman LLC Top agencies DOT (Department of Transportation)	$3,249,705	0.5%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, #51 in FY2024 and #52 in FY2025; up 27 since Aug 2024–Jul 2025.
37	Ciri Development Corporation Through Lbyd Federal, LLC Top agencies DOE (Department of Energy)	$3,177,005	0.5%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	Ukpeagvik Inupiat Corporation 2 awardees, including Bowhead Global Systems and Technology, LLC and Bowhead Enterprise, Science and Technology, LLC Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$3,090,726	0.5%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Tatitlek Government Services, LLC Top agencies Navy (Department of the Navy)	$2,934,759	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Cherokee Nation Defense Solutions LLC Top agencies USAF (Department of the Air Force)	$2,881,271	0.5%	Rank history: not on the FY2021–FY2023 lists, #56 in FY2024 and #46 in FY2025; up 202 since Aug 2024–Jul 2025.
41	Cherokee Nation 3 awardees, including Cherokee Nation Defense Solutions LLC, Cherokee Insights LLC and Cherokee Nation Federal Consulting, L.L.C. Top agencies USAF (Department of the Air Force) DOS (Department of State) DOI (Department of the Interior)	$2,871,487	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42	The Aleut Corporation 3 awardees, including Aleut Government Services LLC and Aleut Services, LLC Top agencies DOE (Department of Energy) EPA (Environmental Protection Agency)	$2,485,124	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
43	LEO Tech LLC Top agencies USAF (Department of the Air Force)	$2,350,051	0.4%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 21 since Aug 2024–Jul 2025.
44	Advent Svcs LLC Top agencies DHS (Department of Homeland Security) Navy (Department of the Navy)	$2,280,171	0.4%	Rank history: not on the FY2021 list, #97 in FY2022, #85 in FY2023, #82 in FY2024 and #56 in FY2025; up 21 since Aug 2024–Jul 2025.
45	Rapier Solutions, Inc. Top agencies Army (Department of the Army)	$2,247,659	0.4%	Rank history: #60 in FY2021, not on the FY2022–FY2024 lists and #49 in FY2025; up 30 since Aug 2024–Jul 2025.
46	Melwood Horticultural Training Center, Inc. Top agencies Treasury (Department of the Treasury) NASA (National Aeronautics and Space Administration)	$2,232,379	0.4%	Rank history: #55 in FY2021, #73 in FY2022, #51 in FY2023, #42 in FY2024 and #45 in FY2025; down 3 since Aug 2024–Jul 2025.
47	Brandan Enterprises, Inc. Top agencies HHS (Department of Health and Human Services)	$2,150,581	0.4%	Rank history: not on the FY2021 list, #59 in FY2022, not on the FY2023 list, #66 in FY2024 and #42 in FY2025; down 6 since Aug 2024–Jul 2025.
48	Didlake Inc. Top agencies DOE (Department of Energy) HUD (Department of Housing and Urban Development)	$2,061,079	0.3%	Rank history: #58 in FY2021, #71 in FY2022, #72 in FY2023, #76 in FY2024 and #51 in FY2025; up 14 since Aug 2024–Jul 2025.
49	Interagency Readiness Solutions, LLC Top agencies Army (Department of the Army)	$2,000,393	0.3%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 9 since Aug 2024–Jul 2025.
50	Kwaan Bear It Solutions, LLC Top agencies DOS (Department of State)	$1,949,644	0.3%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
51	Chenhalls Staffing Services, Inc. Top agencies HHS (Department of Health and Human Services)	$1,942,598	0.3%	Rank history: not on the FY2021 list, #34 in FY2022, #28 in FY2023, #31 in FY2024 and not on the FY2025 list; up 59 since Aug 2024–Jul 2025.
52	Brightkey, Inc. Top agencies FCC (Federal Communications Commission) FTC (Federal Trade Commission)	$1,921,807	0.3%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; up 63 since Aug 2024–Jul 2025.
53	Essnova Solutions Inc. Top agencies OSD (Office of the Secretary of Defense) Army (Department of the Army) Navy (Department of the Navy)	$1,851,970	0.3%	Rank history: not on the FY2021–FY2023 lists, #94 in FY2024 and #68 in FY2025; up 1 since Aug 2024–Jul 2025.
54	Command Management Services Inc. Top agencies Army (Department of the Army)	$1,826,727	0.3%	Rank history: not on the FY2021–FY2024 lists and #75 in FY2025; up 62 since Aug 2024–Jul 2025.
55	Red Canyon Technologies, LLC Top agencies Navy (Department of the Navy)	$1,785,348	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Wisengineering LLC Top agencies Army (Department of the Army)	$1,781,387	0.3%	Rank history: not on the FY2021–FY2023 lists, #78 in FY2024 and #77 in FY2025; up 29 since Aug 2024–Jul 2025.
57	Koniag, Inc. 2 awardees, including Koniag Management Solutions LLC and Koniag Advisory and Business Solutions, LLC Top agencies DHS (Department of Homeland Security) DOE (Department of Energy)	$1,774,100	0.3%	Rank history: #7 in FY2021, #14 in FY2022, #6 in FY2023, #10 in FY2024 and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
58	T47 International Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$1,668,403	0.3%	Rank history: not on the FY2021–FY2023 lists, #87 in FY2024 and #66 in FY2025; up 8 since Aug 2024–Jul 2025.
59	S & K Federal Services LLC Top agencies DOE (Department of Energy)	$1,662,777	0.3%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 25 since Aug 2024–Jul 2025.
60	Professional Contract Services, Inc. Top agencies HHS (Department of Health and Human Services) Army (Department of the Army)	$1,659,567	0.3%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, #95 in FY2024 and #71 in FY2025; up 95 since Aug 2024–Jul 2025.
61	Eursdale Companies LLC Top agencies DHA (Defense Health Agency)	$1,590,298	0.3%	Rank history: not on the FY2021 list, #31 in FY2022, #33 in FY2023, #90 in FY2024 and #67 in FY2025; up 6 since Aug 2024–Jul 2025.
62	Peckham Vocational Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,564,349	0.3%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; down 17 since Aug 2024–Jul 2025.
63	General Dynamics Corporation 2 awardees, including General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy)	$1,557,864	0.3%	Rank history: #4 in FY2021, #11 in FY2022, #8 in FY2023, #47 in FY2024 and #69 in FY2025; up 13 since Aug 2024–Jul 2025.
64	Kunwon-Ch2M Hill Pmc, LLC Top agencies Army (Department of the Army)	$1,547,972	0.3%	Rank history: #26 in FY2021, #33 in FY2022, #37 in FY2023, #41 in FY2024 and #34 in FY2025; down 33 since Aug 2024–Jul 2025.
65	Pride Industries Top agencies DHS (Department of Homeland Security)	$1,536,150	0.3%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; down 13 since Aug 2024–Jul 2025.
66	Z-Tech Solutions, LLC Top agencies DOT (Department of Transportation)	$1,414,385	0.2%	Rank history: #83 in FY2021, #63 in FY2022, #71 in FY2023, #64 in FY2024 and #50 in FY2025; down 15 since Aug 2024–Jul 2025.
67	Mallory & Associates LLC Top agencies DOT (Department of Transportation)	$1,385,824	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Bluepath Labs LLC Top agencies DOE (Department of Energy)	$1,360,670	0.2%	Rank history: #94 in FY2021, #88 in FY2022, not on the FY2023 list, #91 in FY2024 and #80 in FY2025; up 1 since Aug 2024–Jul 2025.
69	Femdel LLC Top agencies GSA (General Services Administration)	$1,351,676	0.2%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #62 in FY2025; up 11 since Aug 2024–Jul 2025.
70	Lawelawe Technology Services, Inc. Top agencies NSF (National Science Foundation)	$1,320,208	0.2%	Rank history: not on the FY2021–FY2025 lists; up 67 since Aug 2024–Jul 2025.
71	Chenhall Sedona Solutions Joint Venture LLC Top agencies DOI (Department of the Interior)	$1,317,705	0.2%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 41 since Aug 2024–Jul 2025.
72	Fedwriters, Inc. Top agencies DISA (Defense Information Systems Agency) Navy (Department of the Navy)	$1,310,970	0.2%	Rank history: not on the FY2021–FY2022 lists, #97 in FY2023, not on the FY2024 list and #72 in FY2025; up 92 since Aug 2024–Jul 2025.
73	The Jardin Group, LLC Top agencies SBA (Small Business Administration)	$1,300,562	0.2%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #79 in FY2025; up 8 since Aug 2024–Jul 2025.
74	Impyrian LLC Top agencies Commerce (Department of Commerce)	$1,277,853	0.2%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 5 since Aug 2024–Jul 2025.
75	CTR Management Group LLC Top agencies DOT (Department of Transportation)	$1,247,347	0.2%	Rank history: #100 in FY2021, not on the FY2022 list, #91 in FY2023, #85 in FY2024 and #92 in FY2025; up 21 since Aug 2024–Jul 2025.
76	KJ Trauma Consulting LLC Top agencies DHA (Defense Health Agency)	$1,233,600	0.2%	Rank history: not on the FY2021–FY2025 lists; up 63 since Aug 2024–Jul 2025.
77	Alexton Incorporated Top agencies DOE (Department of Energy)	$1,214,485	0.2%	Rank history: not on the FY2021–FY2023 lists, #62 in FY2024 and #73 in FY2025; down 24 since Aug 2024–Jul 2025.
78	Areli Inc. Top agencies OSD (Office of the Secretary of Defense) Navy (Department of the Navy)	$1,192,499	0.2%	Rank history: not on the FY2021–FY2022 lists, #93 in FY2023, #80 in FY2024 and #61 in FY2025; down 18 since Aug 2024–Jul 2025.
79	Tatitlek Federal Services LLC Top agencies Navy (Department of the Navy)	$1,182,640	0.2%	Rank history: not on the FY2021–FY2025 lists; up 47 since Aug 2024–Jul 2025.
80	Pohaku Pacific LLC Top agencies DHA (Defense Health Agency)	$1,171,288	0.2%	Rank history: not on the FY2021 list, #92 in FY2022, #84 in FY2023, not on the FY2024 list and #78 in FY2025; down 7 since Aug 2024–Jul 2025.
81	Mhsystems Inc. Top agencies DHA (Defense Health Agency) Navy (Department of the Navy)	$1,167,017	0.2%	Rank history: #74 in FY2021, #77 in FY2022, #82 in FY2023, not on the FY2024 list and #97 in FY2025; up 19 since Aug 2024–Jul 2025.
82	Exquadrum Inc. Top agencies USAF (Department of the Air Force)	$1,147,349	0.2%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 5 since Aug 2024–Jul 2025.
83	Granite Commercial Real Estate LLC Top agencies USAF (Department of the Air Force)	$1,141,066	0.2%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; down 1 since Aug 2024–Jul 2025.
84	Arlo Solutions L.L.C. Top agencies WHS (DOD Washington Headquarters Service)	$1,138,620	0.2%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 218 since Aug 2024–Jul 2025.
85	Windsor Group LLC Top agencies HHS (Department of Health and Human Services)	$1,079,635	0.2%	Rank history: not on the FY2021–FY2023 lists, #77 in FY2024 and #98 in FY2025; up 17 since Aug 2024–Jul 2025.
86	Americas Staffing Partner Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy)	$1,076,738	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Cyberdata Technologies, Inc. Top agencies DOT (Department of Transportation)	$1,066,964	0.2%	Rank history: not on the FY2021–FY2025 lists; up 32 since Aug 2024–Jul 2025.
88	Aneon Brillient, LLC Top agencies HHS (Department of Health and Human Services)	$1,066,294	0.2%	Rank history: not on the FY2021–FY2025 lists; up 64 since Aug 2024–Jul 2025.
89	Afognak Native Corporation Through Alutiiq Solutions, LLC Top agencies Navy (Department of the Navy)	$1,050,855	0.2%	Rank history: not on the FY2021–FY2022 lists, #65 in FY2023 and not on the FY2024–FY2025 lists; up 22 since Aug 2024–Jul 2025.
90	Empire Hospitality LLC Top agencies Army (Department of the Army)	$1,030,046	0.2%	Rank history: not on the FY2021–FY2025 lists; down 2 since Aug 2024–Jul 2025.
91	Nobis Enterprises, Inc. Top agencies HUD (Department of Housing and Urban Development) Army (Department of the Army)	$944,466	0.2%	Rank history: #85 in FY2021, #82 in FY2022, #78 in FY2023, #79 in FY2024 and #63 in FY2025; up 30 since Aug 2024–Jul 2025.
92	Dawson Cms, LLC Top agencies Army (Department of the Army)	$932,268	0.2%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; up 11 since Aug 2024–Jul 2025.
93	Tpgi CPA PLLC Top agencies DOE (Department of Energy)	$924,934	0.2%	Rank history: not on the FY2021–FY2025 lists; up 31 since Aug 2024–Jul 2025.
94	Akytech Consulting, LLC Top agencies Commerce (Department of Commerce) DHA (Defense Health Agency)	$897,242	0.2%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; down 2 since Aug 2024–Jul 2025.
95	Hedgelan Consulting LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$877,718	0.1%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and not on the FY2025 list; up 84 since Aug 2024–Jul 2025.
96	Integrated Management Strategies LLC Top agencies DHA (Defense Health Agency)	$868,934	0.1%	Rank history: not on the FY2021–FY2025 lists; up 36 since Aug 2024–Jul 2025.
97	MEC Distribution LLC Top agencies EPA (Environmental Protection Agency)	$865,200	0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 1 since Aug 2024–Jul 2025.
98	Ciconix, LLC Top agencies DHA (Defense Health Agency)	$859,496	0.1%	Rank history: not on the FY2021–FY2023 lists, #100 in FY2024 and #99 in FY2025; up 6 since Aug 2024–Jul 2025.
99	Diverse Staffing Services Inc Top agencies DOJ (Department of Justice)	$837,893	0.1%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2023, #98 in FY2024 and not on the FY2025 list; up 120 since Aug 2024–Jul 2025.
100	Grey Street Consulting, LLC Top agencies DOE (Department of Energy)	$835,152	0.1%	Rank history: not on the FY2021–FY2025 lists; up 149 since Aug 2024–Jul 2025.

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100 of 355 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 56111

Code	Net obligations	Largest contractor
561110 Office Administrative Services	$548,591,646	Trace Systems, Inc.

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 $596 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. 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 NAICS 56111 contractors in Aug 2025–Jul 2026?

1. Trace Systems, Inc. ($67.8M), 2. Arctic Slope Regional Corporation ($40.7M), 3. Bowhead Marine Support Services, LLC ($33.9M), 4. Koniag Brillient, LLC ($22.8M), 5. 1 - 8A Iso9001 Fedsync-Bfs, LLC ($21.1M), 6. Kent Campa & Kate Inc. ($20.5M), 7. LMI Consulting, LLC ($19.8M), 8. Sciolex Corporation ($17.8M), 9. Katmai North America LLC ($16M), 10. National Industries for the Blind ($14M).

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